Merge configure.ac from gcc project
To merge with gcc's copy of configure.ac we need to revert changes to configure.ac in the following gcc commits: dc832fb39fc0 2022-08-25 fc259b522c0f 2022-06-25 Then reapply configure.ac changes in binutils from these binutils commits: 50ad1254d503 2021-01-09 bb368aad297f 2022-03-11 e5f2f7d901ee 2022-07-26 2cac01e3ffff 2022-09-26 Plus copy over gcc's config/ax_cxx_compile_stdcxx.m4, then regenerate configure.
This commit is contained in:
Alan Modra
parent
bbcf4de018
commit
228cf97dd3
979
config/ax_cxx_compile_stdcxx.m4
Normal file
979
config/ax_cxx_compile_stdcxx.m4
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@ -0,0 +1,979 @@
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# ===========================================================================
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# https://www.gnu.org/software/autoconf-archive/ax_cxx_compile_stdcxx.html
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# ===========================================================================
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#
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# SYNOPSIS
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#
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# AX_CXX_COMPILE_STDCXX(VERSION, [ext|noext], [mandatory|optional])
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#
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# DESCRIPTION
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#
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# Check for baseline language coverage in the compiler for the specified
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# version of the C++ standard. If necessary, add switches to CXX and
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# CXXCPP to enable support. VERSION may be '11' (for the C++11 standard)
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# or '14' (for the C++14 standard).
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#
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# The second argument, if specified, indicates whether you insist on an
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# extended mode (e.g. -std=gnu++11) or a strict conformance mode (e.g.
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# -std=c++11). If neither is specified, you get whatever works, with
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# preference for no added switch, and then for an extended mode.
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#
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# The third argument, if specified 'mandatory' or if left unspecified,
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# indicates that baseline support for the specified C++ standard is
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# required and that the macro should error out if no mode with that
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# support is found. If specified 'optional', then configuration proceeds
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# regardless, after defining HAVE_CXX${VERSION} if and only if a
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# supporting mode is found.
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#
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# If the fourth argument is an optional CXX/CXXFLAG/CPPFLAG suffix, e.g.
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# "_FOR_BUILD" or "_FOR_TARGET".
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#
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#
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# LICENSE
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#
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# Copyright (c) 2008 Benjamin Kosnik <bkoz@redhat.com>
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# Copyright (c) 2012 Zack Weinberg <zackw@panix.com>
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# Copyright (c) 2013 Roy Stogner <roystgnr@ices.utexas.edu>
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# Copyright (c) 2014, 2015 Google Inc.; contributed by Alexey Sokolov <sokolov@google.com>
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# Copyright (c) 2015 Paul Norman <penorman@mac.com>
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# Copyright (c) 2015 Moritz Klammler <moritz@klammler.eu>
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# Copyright (c) 2016, 2018 Krzesimir Nowak <qdlacz@gmail.com>
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# Copyright (c) 2019 Enji Cooper <yaneurabeya@gmail.com>
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# Copyright (c) 2020 Jason Merrill <jason@redhat.com>
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#
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# Copying and distribution of this file, with or without modification, are
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# permitted in any medium without royalty provided the copyright notice
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# and this notice are preserved. This file is offered as-is, without any
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# warranty.
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#serial 12
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dnl This macro is based on the code from the AX_CXX_COMPILE_STDCXX_11 macro
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dnl (serial version number 13).
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AC_DEFUN([AX_CXX_COMPILE_STDCXX], [dnl
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m4_if([$1], [11], [ax_cxx_compile_alternatives="11 0x"],
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[$1], [14], [ax_cxx_compile_alternatives="14 1y"],
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[$1], [17], [ax_cxx_compile_alternatives="17 1z"],
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[m4_fatal([invalid first argument `$1' to AX_CXX_COMPILE_STDCXX])])dnl
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m4_if([$2], [], [],
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[$2], [ext], [],
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[$2], [noext], [],
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[m4_fatal([invalid second argument `$2' to AX_CXX_COMPILE_STDCXX])])dnl
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m4_if([$3], [], [ax_cxx_compile_cxx$1_required=true],
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[$3], [mandatory], [ax_cxx_compile_cxx$1_required=true],
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[$3], [optional], [ax_cxx_compile_cxx$1_required=false],
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[m4_fatal([invalid third argument `$3' to AX_CXX_COMPILE_STDCXX])])
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AC_LANG_PUSH([C++])dnl
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ac_success=no
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m4_ifnblank([$4], [dnl
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ax_cv_cxx_compile_cxx$1_orig_cxx="$CXX"
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ax_cv_cxx_compile_cxx$1_orig_cxxflags="$CXXFLAGS"
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ax_cv_cxx_compile_cxx$1_orig_cppflags="$CPPFLAGS"
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CXX="$CXX$4"
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CXXFLAGS="$CXXFLAGS$4"
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CPPFLAGS="$CPPFLAGS$4"])
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m4_if([$2], [], [dnl
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AC_CACHE_CHECK(whether $CXX supports C++$1 features by default,
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ax_cv_cxx_compile_cxx$1$4,
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[AC_COMPILE_IFELSE([AC_LANG_SOURCE([_AX_CXX_COMPILE_STDCXX_testbody_$1])],
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[ax_cv_cxx_compile_cxx$1$4=yes],
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[ax_cv_cxx_compile_cxx$1$4=no])])
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if test x$ax_cv_cxx_compile_cxx$1$4 = xyes; then
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ac_success=yes
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fi])
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m4_if([$2], [noext], [], [dnl
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if test x$ac_success = xno; then
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for alternative in ${ax_cxx_compile_alternatives}; do
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switch="-std=gnu++${alternative}"
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cachevar=AS_TR_SH([ax_cv_cxx_compile_cxx$1$4_$switch])
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AC_CACHE_CHECK(whether $CXX supports C++$1 features with $switch,
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$cachevar,
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[ac_save_CXX="$CXX"
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CXX="$CXX $switch"
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AC_COMPILE_IFELSE([AC_LANG_SOURCE([_AX_CXX_COMPILE_STDCXX_testbody_$1])],
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[eval $cachevar=yes],
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[eval $cachevar=no])
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CXX="$ac_save_CXX"])
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if eval test x\$$cachevar = xyes; then
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CXX="$CXX $switch"
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if test -n "$CXXCPP" ; then
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CXXCPP="$CXXCPP $switch"
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fi
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ac_success=yes
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break
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fi
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done
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fi])
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m4_if([$2], [ext], [], [dnl
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if test x$ac_success = xno; then
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dnl HP's aCC needs +std=c++11 according to:
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dnl http://h21007.www2.hp.com/portal/download/files/unprot/aCxx/PDF_Release_Notes/769149-001.pdf
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dnl Cray's crayCC needs "-h std=c++11"
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for alternative in ${ax_cxx_compile_alternatives}; do
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for switch in -std=c++${alternative} +std=c++${alternative} "-h std=c++${alternative}"; do
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cachevar=AS_TR_SH([ax_cv_cxx_compile_cxx$1$4_$switch])
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AC_CACHE_CHECK(whether $CXX supports C++$1 features with $switch,
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$cachevar,
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[ac_save_CXX="$CXX"
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CXX="$CXX $switch"
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AC_COMPILE_IFELSE([AC_LANG_SOURCE([_AX_CXX_COMPILE_STDCXX_testbody_$1])],
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[eval $cachevar=yes],
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[eval $cachevar=no])
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CXX="$ac_save_CXX"])
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if eval test x\$$cachevar = xyes; then
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CXX="$CXX $switch"
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if test -n "$CXXCPP" ; then
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CXXCPP="$CXXCPP $switch"
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fi
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ac_success=yes
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break
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fi
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done
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if test x$ac_success = xyes; then
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break
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fi
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done
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fi])
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m4_ifnblank([$4], [dnl
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CXX$4="$CXX"
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CXXFLAGS$4="$CXXFLAGS"
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CPPFLAGS$4="$CPPFLAGS"
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CXX="$ax_cv_cxx_compile_cxx$1_orig_cxx"
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CXXFLAGS="$ax_cv_cxx_compile_cxx$1_orig_cxxflags"
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CPPFLAGS="$ax_cv_cxx_compile_cxx$1_orig_cppflags"])
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AC_LANG_POP([C++])
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if test x$ax_cxx_compile_cxx$1_required = xtrue; then
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if test x$ac_success = xno; then
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AC_MSG_ERROR([*** A compiler with support for C++$1 language features is required.])
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fi
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fi
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if test x$ac_success = xno; then
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HAVE_CXX$1$4=0
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AC_MSG_NOTICE([No compiler with C++$1 support was found])
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else
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HAVE_CXX$1$4=1
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AC_DEFINE(HAVE_CXX$1$4,1,
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[define if the compiler supports basic C++$1 syntax])
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fi
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AC_SUBST(HAVE_CXX$1$4)
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])
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dnl Test body for checking C++11 support
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m4_define([_AX_CXX_COMPILE_STDCXX_testbody_11],
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_AX_CXX_COMPILE_STDCXX_testbody_new_in_11
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)
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dnl Test body for checking C++14 support
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m4_define([_AX_CXX_COMPILE_STDCXX_testbody_14],
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_AX_CXX_COMPILE_STDCXX_testbody_new_in_11
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_AX_CXX_COMPILE_STDCXX_testbody_new_in_14
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)
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m4_define([_AX_CXX_COMPILE_STDCXX_testbody_17],
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_AX_CXX_COMPILE_STDCXX_testbody_new_in_11
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_AX_CXX_COMPILE_STDCXX_testbody_new_in_14
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_AX_CXX_COMPILE_STDCXX_testbody_new_in_17
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)
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dnl Tests for new features in C++11
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m4_define([_AX_CXX_COMPILE_STDCXX_testbody_new_in_11], [[
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// If the compiler admits that it is not ready for C++11, why torture it?
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// Hopefully, this will speed up the test.
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#ifndef __cplusplus
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#error "This is not a C++ compiler"
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#elif __cplusplus < 201103L
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#error "This is not a C++11 compiler"
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#else
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namespace cxx11
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{
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namespace test_static_assert
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{
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template <typename T>
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struct check
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{
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static_assert(sizeof(int) <= sizeof(T), "not big enough");
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};
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}
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namespace test_final_override
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{
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struct Base
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{
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virtual ~Base() {}
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virtual void f() {}
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};
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struct Derived : public Base
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{
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virtual ~Derived() override {}
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virtual void f() override {}
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};
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}
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namespace test_double_right_angle_brackets
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{
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template < typename T >
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struct check {};
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typedef check<void> single_type;
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typedef check<check<void>> double_type;
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typedef check<check<check<void>>> triple_type;
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typedef check<check<check<check<void>>>> quadruple_type;
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}
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namespace test_decltype
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{
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int
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f()
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{
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int a = 1;
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decltype(a) b = 2;
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return a + b;
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}
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}
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namespace test_type_deduction
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{
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template < typename T1, typename T2 >
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struct is_same
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{
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static const bool value = false;
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};
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template < typename T >
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struct is_same<T, T>
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{
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static const bool value = true;
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};
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template < typename T1, typename T2 >
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auto
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add(T1 a1, T2 a2) -> decltype(a1 + a2)
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{
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return a1 + a2;
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}
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int
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test(const int c, volatile int v)
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{
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static_assert(is_same<int, decltype(0)>::value == true, "");
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static_assert(is_same<int, decltype(c)>::value == false, "");
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static_assert(is_same<int, decltype(v)>::value == false, "");
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auto ac = c;
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auto av = v;
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auto sumi = ac + av + 'x';
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auto sumf = ac + av + 1.0;
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static_assert(is_same<int, decltype(ac)>::value == true, "");
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static_assert(is_same<int, decltype(av)>::value == true, "");
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static_assert(is_same<int, decltype(sumi)>::value == true, "");
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static_assert(is_same<int, decltype(sumf)>::value == false, "");
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static_assert(is_same<int, decltype(add(c, v))>::value == true, "");
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return (sumf > 0.0) ? sumi : add(c, v);
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}
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}
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namespace test_noexcept
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{
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int f() { return 0; }
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int g() noexcept { return 0; }
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static_assert(noexcept(f()) == false, "");
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static_assert(noexcept(g()) == true, "");
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}
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namespace test_constexpr
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{
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template < typename CharT >
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unsigned long constexpr
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strlen_c_r(const CharT *const s, const unsigned long acc) noexcept
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{
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return *s ? strlen_c_r(s + 1, acc + 1) : acc;
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}
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template < typename CharT >
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unsigned long constexpr
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strlen_c(const CharT *const s) noexcept
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{
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return strlen_c_r(s, 0UL);
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}
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static_assert(strlen_c("") == 0UL, "");
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static_assert(strlen_c("1") == 1UL, "");
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static_assert(strlen_c("example") == 7UL, "");
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static_assert(strlen_c("another\0example") == 7UL, "");
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}
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namespace test_rvalue_references
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{
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template < int N >
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struct answer
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{
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static constexpr int value = N;
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};
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answer<1> f(int&) { return answer<1>(); }
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answer<2> f(const int&) { return answer<2>(); }
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answer<3> f(int&&) { return answer<3>(); }
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void
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test()
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{
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int i = 0;
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const int c = 0;
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static_assert(decltype(f(i))::value == 1, "");
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static_assert(decltype(f(c))::value == 2, "");
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static_assert(decltype(f(0))::value == 3, "");
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}
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}
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namespace test_uniform_initialization
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{
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struct test
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{
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static const int zero {};
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static const int one {1};
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};
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static_assert(test::zero == 0, "");
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static_assert(test::one == 1, "");
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}
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namespace test_lambdas
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{
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void
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test1()
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{
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auto lambda1 = [](){};
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auto lambda2 = lambda1;
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lambda1();
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lambda2();
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}
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int
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test2()
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{
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auto a = [](int i, int j){ return i + j; }(1, 2);
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auto b = []() -> int { return '0'; }();
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auto c = [=](){ return a + b; }();
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auto d = [&](){ return c; }();
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auto e = [a, &b](int x) mutable {
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const auto identity = [](int y){ return y; };
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for (auto i = 0; i < a; ++i)
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a += b--;
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return x + identity(a + b);
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}(0);
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return a + b + c + d + e;
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}
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int
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test3()
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{
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const auto nullary = [](){ return 0; };
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const auto unary = [](int x){ return x; };
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using nullary_t = decltype(nullary);
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using unary_t = decltype(unary);
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const auto higher1st = [](nullary_t f){ return f(); };
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const auto higher2nd = [unary](nullary_t f1){
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return [unary, f1](unary_t f2){ return f2(unary(f1())); };
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};
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return higher1st(nullary) + higher2nd(nullary)(unary);
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}
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}
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namespace test_variadic_templates
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{
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template <int...>
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struct sum;
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template <int N0, int... N1toN>
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struct sum<N0, N1toN...>
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||||
{
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static constexpr auto value = N0 + sum<N1toN...>::value;
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};
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||||
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||||
template <>
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struct sum<>
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||||
{
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||||
static constexpr auto value = 0;
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||||
};
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||||
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||||
static_assert(sum<>::value == 0, "");
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||||
static_assert(sum<1>::value == 1, "");
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||||
static_assert(sum<23>::value == 23, "");
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||||
static_assert(sum<1, 2>::value == 3, "");
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||||
static_assert(sum<5, 5, 11>::value == 21, "");
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static_assert(sum<2, 3, 5, 7, 11, 13>::value == 41, "");
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||||
|
||||
}
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||||
|
||||
// http://stackoverflow.com/questions/13728184/template-aliases-and-sfinae
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||||
// Clang 3.1 fails with headers of libstd++ 4.8.3 when using std::function
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||||
// because of this.
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||||
namespace test_template_alias_sfinae
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||||
{
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||||
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||||
struct foo {};
|
||||
|
||||
template<typename T>
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||||
using member = typename T::member_type;
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||||
|
||||
template<typename T>
|
||||
void func(...) {}
|
||||
|
||||
template<typename T>
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||||
void func(member<T>*) {}
|
||||
|
||||
void test();
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||||
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||||
void test() { func<foo>(0); }
|
||||
|
||||
}
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} // namespace cxx11
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|
||||
#endif // __cplusplus >= 201103L
|
||||
|
||||
]])
|
||||
|
||||
|
||||
dnl Tests for new features in C++14
|
||||
|
||||
m4_define([_AX_CXX_COMPILE_STDCXX_testbody_new_in_14], [[
|
||||
|
||||
// If the compiler admits that it is not ready for C++14, why torture it?
|
||||
// Hopefully, this will speed up the test.
|
||||
|
||||
#ifndef __cplusplus
|
||||
|
||||
#error "This is not a C++ compiler"
|
||||
|
||||
#elif __cplusplus < 201402L
|
||||
|
||||
#error "This is not a C++14 compiler"
|
||||
|
||||
#else
|
||||
|
||||
namespace cxx14
|
||||
{
|
||||
|
||||
namespace test_polymorphic_lambdas
|
||||
{
|
||||
|
||||
int
|
||||
test()
|
||||
{
|
||||
const auto lambda = [](auto&&... args){
|
||||
const auto istiny = [](auto x){
|
||||
return (sizeof(x) == 1UL) ? 1 : 0;
|
||||
};
|
||||
const int aretiny[] = { istiny(args)... };
|
||||
return aretiny[0];
|
||||
};
|
||||
return lambda(1, 1L, 1.0f, '1');
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
namespace test_binary_literals
|
||||
{
|
||||
|
||||
constexpr auto ivii = 0b0000000000101010;
|
||||
static_assert(ivii == 42, "wrong value");
|
||||
|
||||
}
|
||||
|
||||
namespace test_generalized_constexpr
|
||||
{
|
||||
|
||||
template < typename CharT >
|
||||
constexpr unsigned long
|
||||
strlen_c(const CharT *const s) noexcept
|
||||
{
|
||||
auto length = 0UL;
|
||||
for (auto p = s; *p; ++p)
|
||||
++length;
|
||||
return length;
|
||||
}
|
||||
|
||||
static_assert(strlen_c("") == 0UL, "");
|
||||
static_assert(strlen_c("x") == 1UL, "");
|
||||
static_assert(strlen_c("test") == 4UL, "");
|
||||
static_assert(strlen_c("another\0test") == 7UL, "");
|
||||
|
||||
}
|
||||
|
||||
namespace test_lambda_init_capture
|
||||
{
|
||||
|
||||
int
|
||||
test()
|
||||
{
|
||||
auto x = 0;
|
||||
const auto lambda1 = [a = x](int b){ return a + b; };
|
||||
const auto lambda2 = [a = lambda1(x)](){ return a; };
|
||||
return lambda2();
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
namespace test_digit_separators
|
||||
{
|
||||
|
||||
constexpr auto ten_million = 100'000'000;
|
||||
static_assert(ten_million == 100000000, "");
|
||||
|
||||
}
|
||||
|
||||
namespace test_return_type_deduction
|
||||
{
|
||||
|
||||
auto f(int& x) { return x; }
|
||||
decltype(auto) g(int& x) { return x; }
|
||||
|
||||
template < typename T1, typename T2 >
|
||||
struct is_same
|
||||
{
|
||||
static constexpr auto value = false;
|
||||
};
|
||||
|
||||
template < typename T >
|
||||
struct is_same<T, T>
|
||||
{
|
||||
static constexpr auto value = true;
|
||||
};
|
||||
|
||||
int
|
||||
test()
|
||||
{
|
||||
auto x = 0;
|
||||
static_assert(is_same<int, decltype(f(x))>::value, "");
|
||||
static_assert(is_same<int&, decltype(g(x))>::value, "");
|
||||
return x;
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
} // namespace cxx14
|
||||
|
||||
#endif // __cplusplus >= 201402L
|
||||
|
||||
]])
|
||||
|
||||
|
||||
dnl Tests for new features in C++17
|
||||
|
||||
m4_define([_AX_CXX_COMPILE_STDCXX_testbody_new_in_17], [[
|
||||
|
||||
// If the compiler admits that it is not ready for C++17, why torture it?
|
||||
// Hopefully, this will speed up the test.
|
||||
|
||||
#ifndef __cplusplus
|
||||
|
||||
#error "This is not a C++ compiler"
|
||||
|
||||
#elif __cplusplus < 201703L
|
||||
|
||||
#error "This is not a C++17 compiler"
|
||||
|
||||
#else
|
||||
|
||||
#include <initializer_list>
|
||||
#include <utility>
|
||||
#include <type_traits>
|
||||
|
||||
namespace cxx17
|
||||
{
|
||||
|
||||
namespace test_constexpr_lambdas
|
||||
{
|
||||
|
||||
constexpr int foo = [](){return 42;}();
|
||||
|
||||
}
|
||||
|
||||
namespace test::nested_namespace::definitions
|
||||
{
|
||||
|
||||
}
|
||||
|
||||
namespace test_fold_expression
|
||||
{
|
||||
|
||||
template<typename... Args>
|
||||
int multiply(Args... args)
|
||||
{
|
||||
return (args * ... * 1);
|
||||
}
|
||||
|
||||
template<typename... Args>
|
||||
bool all(Args... args)
|
||||
{
|
||||
return (args && ...);
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
namespace test_extended_static_assert
|
||||
{
|
||||
|
||||
static_assert (true);
|
||||
|
||||
}
|
||||
|
||||
namespace test_auto_brace_init_list
|
||||
{
|
||||
|
||||
auto foo = {5};
|
||||
auto bar {5};
|
||||
|
||||
static_assert(std::is_same<std::initializer_list<int>, decltype(foo)>::value);
|
||||
static_assert(std::is_same<int, decltype(bar)>::value);
|
||||
}
|
||||
|
||||
namespace test_typename_in_template_template_parameter
|
||||
{
|
||||
|
||||
template<template<typename> typename X> struct D;
|
||||
|
||||
}
|
||||
|
||||
namespace test_fallthrough_nodiscard_maybe_unused_attributes
|
||||
{
|
||||
|
||||
int f1()
|
||||
{
|
||||
return 42;
|
||||
}
|
||||
|
||||
[[nodiscard]] int f2()
|
||||
{
|
||||
[[maybe_unused]] auto unused = f1();
|
||||
|
||||
switch (f1())
|
||||
{
|
||||
case 17:
|
||||
f1();
|
||||
[[fallthrough]];
|
||||
case 42:
|
||||
f1();
|
||||
}
|
||||
return f1();
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
namespace test_extended_aggregate_initialization
|
||||
{
|
||||
|
||||
struct base1
|
||||
{
|
||||
int b1, b2 = 42;
|
||||
};
|
||||
|
||||
struct base2
|
||||
{
|
||||
base2() {
|
||||
b3 = 42;
|
||||
}
|
||||
int b3;
|
||||
};
|
||||
|
||||
struct derived : base1, base2
|
||||
{
|
||||
int d;
|
||||
};
|
||||
|
||||
derived d1 {{1, 2}, {}, 4}; // full initialization
|
||||
derived d2 {{}, {}, 4}; // value-initialized bases
|
||||
|
||||
}
|
||||
|
||||
namespace test_general_range_based_for_loop
|
||||
{
|
||||
|
||||
struct iter
|
||||
{
|
||||
int i;
|
||||
|
||||
int& operator* ()
|
||||
{
|
||||
return i;
|
||||
}
|
||||
|
||||
const int& operator* () const
|
||||
{
|
||||
return i;
|
||||
}
|
||||
|
||||
iter& operator++()
|
||||
{
|
||||
++i;
|
||||
return *this;
|
||||
}
|
||||
};
|
||||
|
||||
struct sentinel
|
||||
{
|
||||
int i;
|
||||
};
|
||||
|
||||
bool operator== (const iter& i, const sentinel& s)
|
||||
{
|
||||
return i.i == s.i;
|
||||
}
|
||||
|
||||
bool operator!= (const iter& i, const sentinel& s)
|
||||
{
|
||||
return !(i == s);
|
||||
}
|
||||
|
||||
struct range
|
||||
{
|
||||
iter begin() const
|
||||
{
|
||||
return {0};
|
||||
}
|
||||
|
||||
sentinel end() const
|
||||
{
|
||||
return {5};
|
||||
}
|
||||
};
|
||||
|
||||
void f()
|
||||
{
|
||||
range r {};
|
||||
|
||||
for (auto i : r)
|
||||
{
|
||||
[[maybe_unused]] auto v = i;
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
namespace test_lambda_capture_asterisk_this_by_value
|
||||
{
|
||||
|
||||
struct t
|
||||
{
|
||||
int i;
|
||||
int foo()
|
||||
{
|
||||
return [*this]()
|
||||
{
|
||||
return i;
|
||||
}();
|
||||
}
|
||||
};
|
||||
|
||||
}
|
||||
|
||||
namespace test_enum_class_construction
|
||||
{
|
||||
|
||||
enum class byte : unsigned char
|
||||
{};
|
||||
|
||||
byte foo {42};
|
||||
|
||||
}
|
||||
|
||||
namespace test_constexpr_if
|
||||
{
|
||||
|
||||
template <bool cond>
|
||||
int f ()
|
||||
{
|
||||
if constexpr(cond)
|
||||
{
|
||||
return 13;
|
||||
}
|
||||
else
|
||||
{
|
||||
return 42;
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
namespace test_selection_statement_with_initializer
|
||||
{
|
||||
|
||||
int f()
|
||||
{
|
||||
return 13;
|
||||
}
|
||||
|
||||
int f2()
|
||||
{
|
||||
if (auto i = f(); i > 0)
|
||||
{
|
||||
return 3;
|
||||
}
|
||||
|
||||
switch (auto i = f(); i + 4)
|
||||
{
|
||||
case 17:
|
||||
return 2;
|
||||
|
||||
default:
|
||||
return 1;
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
namespace test_template_argument_deduction_for_class_templates
|
||||
{
|
||||
|
||||
template <typename T1, typename T2>
|
||||
struct pair
|
||||
{
|
||||
pair (T1 p1, T2 p2)
|
||||
: m1 {p1},
|
||||
m2 {p2}
|
||||
{}
|
||||
|
||||
T1 m1;
|
||||
T2 m2;
|
||||
};
|
||||
|
||||
void f()
|
||||
{
|
||||
[[maybe_unused]] auto p = pair{13, 42u};
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
namespace test_non_type_auto_template_parameters
|
||||
{
|
||||
|
||||
template <auto n>
|
||||
struct B
|
||||
{};
|
||||
|
||||
B<5> b1;
|
||||
B<'a'> b2;
|
||||
|
||||
}
|
||||
|
||||
namespace test_structured_bindings
|
||||
{
|
||||
|
||||
int arr[2] = { 1, 2 };
|
||||
std::pair<int, int> pr = { 1, 2 };
|
||||
|
||||
auto f1() -> int(&)[2]
|
||||
{
|
||||
return arr;
|
||||
}
|
||||
|
||||
auto f2() -> std::pair<int, int>&
|
||||
{
|
||||
return pr;
|
||||
}
|
||||
|
||||
struct S
|
||||
{
|
||||
int x1 : 2;
|
||||
volatile double y1;
|
||||
};
|
||||
|
||||
S f3()
|
||||
{
|
||||
return {};
|
||||
}
|
||||
|
||||
auto [ x1, y1 ] = f1();
|
||||
auto& [ xr1, yr1 ] = f1();
|
||||
auto [ x2, y2 ] = f2();
|
||||
auto& [ xr2, yr2 ] = f2();
|
||||
const auto [ x3, y3 ] = f3();
|
||||
|
||||
}
|
||||
|
||||
namespace test_exception_spec_type_system
|
||||
{
|
||||
|
||||
struct Good {};
|
||||
struct Bad {};
|
||||
|
||||
void g1() noexcept;
|
||||
void g2();
|
||||
|
||||
template<typename T>
|
||||
Bad
|
||||
f(T*, T*);
|
||||
|
||||
template<typename T1, typename T2>
|
||||
Good
|
||||
f(T1*, T2*);
|
||||
|
||||
static_assert (std::is_same_v<Good, decltype(f(g1, g2))>);
|
||||
|
||||
}
|
||||
|
||||
namespace test_inline_variables
|
||||
{
|
||||
|
||||
template<class T> void f(T)
|
||||
{}
|
||||
|
||||
template<class T> inline T g(T)
|
||||
{
|
||||
return T{};
|
||||
}
|
||||
|
||||
template<> inline void f<>(int)
|
||||
{}
|
||||
|
||||
template<> int g<>(int)
|
||||
{
|
||||
return 5;
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
} // namespace cxx17
|
||||
|
||||
#endif // __cplusplus < 201703L
|
||||
|
||||
]])
|
||||
320
configure.ac
320
configure.ac
@ -1,6 +1,6 @@
|
||||
# Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
|
||||
# 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012,
|
||||
# 2014, 2015, 2016, 2019, 2020 Free Software Foundation, Inc.
|
||||
# 2014, 2015, 2016, 2019, 2022 Free Software Foundation, Inc.
|
||||
#
|
||||
# This file is free software; you can redistribute it and/or modify it
|
||||
# under the terms of the GNU General Public License as published by
|
||||
@ -24,6 +24,7 @@ m4_include(config/override.m4)
|
||||
m4_include(config/proginstall.m4)
|
||||
m4_include(config/elf.m4)
|
||||
m4_include(config/gcc-plugin.m4)
|
||||
m4_include(config/ax_cxx_compile_stdcxx.m4)
|
||||
m4_include([libtool.m4])
|
||||
m4_include([ltoptions.m4])
|
||||
m4_include([ltsugar.m4])
|
||||
@ -132,7 +133,7 @@ build_tools="build-texinfo build-flex build-bison build-m4 build-fixincludes"
|
||||
|
||||
# these libraries are used by various programs built for the host environment
|
||||
#f
|
||||
host_libs="intl libiberty opcodes bfd readline tcl tk itcl libgui zlib libbacktrace libcpp libdecnumber gmp mpfr mpc isl libelf libiconv libctf"
|
||||
host_libs="intl libiberty opcodes bfd readline tcl tk itcl libgui zlib libbacktrace libcpp libcody libdecnumber gmp mpfr mpc isl libiconv libctf"
|
||||
|
||||
# these tools are built for the host environment
|
||||
# Note, the powerpc-eabi build depends on sim occurring before gdb in order to
|
||||
@ -140,7 +141,7 @@ host_libs="intl libiberty opcodes bfd readline tcl tk itcl libgui zlib libbacktr
|
||||
# binutils, gas and ld appear in that order because it makes sense to run
|
||||
# "make check" in that particular order.
|
||||
# If --enable-gold is used, "gold" may replace "ld".
|
||||
host_tools="texinfo flex bison binutils gas ld fixincludes gcc cgen sid sim gdb gdbserver gprof etc expect dejagnu m4 utils guile fastjar gnattools libcc1 gotools"
|
||||
host_tools="texinfo flex bison binutils gas ld fixincludes gcc cgen sid sim gdb gdbserver gprof etc expect dejagnu m4 utils guile fastjar gnattools libcc1 gotools c++tools"
|
||||
|
||||
# these libraries are built for the target environment, and are built after
|
||||
# the host libraries and the host tools (which may be a cross compiler)
|
||||
@ -151,7 +152,6 @@ target_libraries="target-libgcc \
|
||||
target-newlib \
|
||||
target-libgomp \
|
||||
target-liboffloadmic \
|
||||
target-libhsail-rt \
|
||||
target-libatomic \
|
||||
target-libitm \
|
||||
target-libstdc++-v3 \
|
||||
@ -163,7 +163,9 @@ target_libraries="target-libgcc \
|
||||
target-libffi \
|
||||
target-libobjc \
|
||||
target-libada \
|
||||
target-libgo"
|
||||
target-libgo \
|
||||
target-libphobos \
|
||||
target-zlib"
|
||||
|
||||
# these tools are built using the target libraries, and are intended to
|
||||
# run only in the target environment
|
||||
@ -249,12 +251,6 @@ fi
|
||||
AC_ARG_WITH(zstd,
|
||||
[AS_HELP_STRING([--with-zstd], [Support zstd compressed debug sections (default=auto)])])
|
||||
|
||||
# Don't compile the bundled readline/libreadline.a if --with-system-readline
|
||||
# is provided.
|
||||
if test x$with_system_readline = xyes ; then
|
||||
noconfigdirs="$noconfigdirs readline"
|
||||
fi
|
||||
|
||||
# some tools are so dependent upon X11 that if we're not building with X,
|
||||
# it's not even worth trying to configure, much less build, that tool.
|
||||
|
||||
@ -307,6 +303,14 @@ AC_ARG_ENABLE(offload-targets,
|
||||
fi
|
||||
], [enable_offload_targets=])
|
||||
|
||||
AC_ARG_ENABLE(offload-defaulted,
|
||||
[AS_HELP_STRING([--enable-offload-defaulted]
|
||||
[If enabled, configured but not installed offload compilers and
|
||||
libgomp plugins are silently ignored. Useful for distribution
|
||||
compilers where those are in separate optional packages.])],
|
||||
[enable_offload_defaulted=$enableval],
|
||||
[enable_offload_defaulted=])
|
||||
|
||||
# Handle --enable-gold, --enable-ld.
|
||||
# --disable-gold [--enable-ld]
|
||||
# Build only ld. Default option.
|
||||
@ -339,7 +343,7 @@ case "${ENABLE_GOLD}" in
|
||||
*-*-elf* | *-*-sysv4* | *-*-unixware* | *-*-eabi* | hppa*64*-*-hpux* \
|
||||
| *-*-linux* | *-*-gnu* | frv-*-uclinux* | *-*-irix5* | *-*-irix6* \
|
||||
| *-*-netbsd* | *-*-openbsd* | *-*-freebsd* | *-*-dragonfly* \
|
||||
| *-*-solaris2* | *-*-nto* | *-*-nacl* | *-*-haiku*)
|
||||
| *-*-solaris2* | *-*-nto* | *-*-nacl*)
|
||||
case "${target}" in
|
||||
*-*-linux*aout* | *-*-linux*oldld*)
|
||||
;;
|
||||
@ -353,7 +357,7 @@ case "${ENABLE_GOLD}" in
|
||||
# Check for target supported by gold.
|
||||
case "${target}" in
|
||||
i?86-*-* | x86_64-*-* | sparc*-*-* | powerpc*-*-* | arm*-*-* \
|
||||
| aarch64*-*-* | tilegx*-*-* | mips*-*-* | s390*-*-*)
|
||||
| aarch64*-*-* | tilegx*-*-* | mips*-*-* | s390*-*-* | loongarch*-*-*)
|
||||
configdirs="$configdirs gold"
|
||||
if test x${ENABLE_GOLD} = xdefault; then
|
||||
default_ld=gold
|
||||
@ -546,7 +550,7 @@ if test x$enable_libgomp = x ; then
|
||||
;;
|
||||
*-*-darwin* | *-*-aix*)
|
||||
;;
|
||||
nvptx*-*-*)
|
||||
nvptx*-*-* | amdgcn*-*-*)
|
||||
;;
|
||||
*)
|
||||
noconfigdirs="$noconfigdirs target-libgomp"
|
||||
@ -634,26 +638,6 @@ if test -d ${srcdir}/libvtv; then
|
||||
fi
|
||||
fi
|
||||
|
||||
|
||||
# Disable libhsail-rt on unsupported systems.
|
||||
if test -d ${srcdir}/libhsail-rt; then
|
||||
if test x$enable_libhsail_rt = x; then
|
||||
AC_MSG_CHECKING([for libhsail-rt support])
|
||||
if (srcdir=${srcdir}/libhsail-rt; \
|
||||
. ${srcdir}/configure.tgt; \
|
||||
test -n "$UNSUPPORTED")
|
||||
then
|
||||
AC_MSG_RESULT([no])
|
||||
unsupported_languages="$unsupported_languages brig"
|
||||
# This implicitly disables also target-libhsail-rt as it won't
|
||||
# get added to the build without BRIG FE.
|
||||
else
|
||||
AC_MSG_RESULT([yes])
|
||||
fi
|
||||
fi
|
||||
fi
|
||||
|
||||
|
||||
# Disable libquadmath for some systems.
|
||||
case "${target}" in
|
||||
avr-*-*)
|
||||
@ -672,9 +656,16 @@ case "${target}" in
|
||||
# No hosted I/O support.
|
||||
noconfigdirs="$noconfigdirs target-libssp"
|
||||
;;
|
||||
bpf-*-*)
|
||||
noconfigdirs="$noconfigdirs target-libssp"
|
||||
;;
|
||||
powerpc-*-aix* | rs6000-*-aix*)
|
||||
noconfigdirs="$noconfigdirs target-libssp"
|
||||
;;
|
||||
pru-*-*)
|
||||
# No hosted I/O support.
|
||||
noconfigdirs="$noconfigdirs target-libssp"
|
||||
;;
|
||||
rl78-*-*)
|
||||
# libssp uses a misaligned load to trigger a fault, but the RL78
|
||||
# doesn't fault for those - instead, it gives a build-time error
|
||||
@ -688,13 +679,17 @@ case "${target}" in
|
||||
esac
|
||||
|
||||
# Disable libstdc++-v3 for some systems.
|
||||
# Allow user to override this if they pass --enable-libstdc++-v3
|
||||
# Allow user to override this if they pass --enable-libstdcxx
|
||||
if test "${ENABLE_LIBSTDCXX}" = "default" ; then
|
||||
case "${target}" in
|
||||
*-*-vxworks*)
|
||||
# VxWorks uses the Dinkumware C++ library.
|
||||
noconfigdirs="$noconfigdirs target-libstdc++-v3"
|
||||
;;
|
||||
amdgcn*-*-*)
|
||||
# Not ported/fails to build when using newlib.
|
||||
noconfigdirs="$noconfigdirs target-libstdc++-v3"
|
||||
;;
|
||||
arm*-wince-pe*)
|
||||
# the C++ libraries don't build on top of CE's C libraries
|
||||
noconfigdirs="$noconfigdirs target-libstdc++-v3"
|
||||
@ -702,18 +697,83 @@ if test "${ENABLE_LIBSTDCXX}" = "default" ; then
|
||||
avr-*-*)
|
||||
noconfigdirs="$noconfigdirs target-libstdc++-v3"
|
||||
;;
|
||||
bpf-*-*)
|
||||
noconfigdirs="$noconfigdirs target-libstdc++-v3"
|
||||
;;
|
||||
ft32-*-*)
|
||||
noconfigdirs="$noconfigdirs target-libstdc++-v3"
|
||||
;;
|
||||
esac
|
||||
fi
|
||||
|
||||
# Disable C++ on systems where it is known to not work.
|
||||
# For testing, you can override this with --enable-languages=c++.
|
||||
case ,${enable_languages}, in
|
||||
*,c++,*)
|
||||
;;
|
||||
*)
|
||||
case "${target}" in
|
||||
bpf-*-*)
|
||||
unsupported_languages="$unsupported_languages c++"
|
||||
;;
|
||||
esac
|
||||
;;
|
||||
esac
|
||||
|
||||
# Disable Objc on systems where it is known to not work.
|
||||
# For testing, you can override this with --enable-languages=objc.
|
||||
case ,${enable_languages}, in
|
||||
*,objc,*)
|
||||
;;
|
||||
*)
|
||||
case "${target}" in
|
||||
bpf-*-*)
|
||||
unsupported_languages="$unsupported_languages objc"
|
||||
;;
|
||||
esac
|
||||
;;
|
||||
esac
|
||||
|
||||
# Disable D on systems where it is known to not work.
|
||||
# For testing, you can override this with --enable-languages=d.
|
||||
case ,${enable_languages}, in
|
||||
*,d,*)
|
||||
;;
|
||||
*)
|
||||
case "${target}" in
|
||||
bpf-*-*)
|
||||
unsupported_languages="$unsupported_languages d"
|
||||
;;
|
||||
esac
|
||||
;;
|
||||
esac
|
||||
|
||||
# Disable libphobos on unsupported systems.
|
||||
# For testing, you can override this with --enable-libphobos.
|
||||
if test -d ${srcdir}/libphobos; then
|
||||
if test x$enable_libphobos = x; then
|
||||
AC_MSG_CHECKING([for libphobos support])
|
||||
if (srcdir=${srcdir}/libphobos; \
|
||||
. ${srcdir}/configure.tgt; \
|
||||
test "$LIBPHOBOS_SUPPORTED" != "yes")
|
||||
then
|
||||
AC_MSG_RESULT([no])
|
||||
noconfigdirs="$noconfigdirs target-libphobos"
|
||||
else
|
||||
AC_MSG_RESULT([yes])
|
||||
fi
|
||||
fi
|
||||
fi
|
||||
|
||||
# Disable Fortran for some systems.
|
||||
case "${target}" in
|
||||
mmix-*-*)
|
||||
# See <http://gcc.gnu.org/ml/gcc-patches/2004-11/msg00572.html>.
|
||||
unsupported_languages="$unsupported_languages fortran"
|
||||
;;
|
||||
bpf-*-*)
|
||||
unsupported_languages="$unsupported_languages fortran"
|
||||
;;
|
||||
esac
|
||||
|
||||
# Disable libffi for some systems.
|
||||
@ -757,6 +817,12 @@ case "${target}" in
|
||||
arm-wince-pe)
|
||||
noconfigdirs="$noconfigdirs target-libffi"
|
||||
;;
|
||||
arm*-*-symbianelf*)
|
||||
noconfigdirs="$noconfigdirs target-libffi"
|
||||
;;
|
||||
bpf-*-*)
|
||||
noconfigdirs="$noconfigdirs target-libffi"
|
||||
;;
|
||||
cris-*-* | crisv32-*-*)
|
||||
case "${target}" in
|
||||
*-*-linux*)
|
||||
@ -803,7 +869,7 @@ esac
|
||||
# Disable the go frontend on systems where it is known to not work. Please keep
|
||||
# this in sync with contrib/config-list.mk.
|
||||
case "${target}" in
|
||||
*-*-darwin* | *-*-cygwin* | *-*-mingw*)
|
||||
*-*-darwin* | *-*-cygwin* | *-*-mingw* | bpf-* )
|
||||
unsupported_languages="$unsupported_languages go"
|
||||
;;
|
||||
esac
|
||||
@ -835,6 +901,9 @@ if test x$enable_libgo = x; then
|
||||
*-*-cygwin* | *-*-mingw*)
|
||||
noconfigdirs="$noconfigdirs target-libgo"
|
||||
;;
|
||||
bpf-*-*)
|
||||
noconfigdirs="$noconfigdirs target-libgo"
|
||||
;;
|
||||
esac
|
||||
fi
|
||||
|
||||
@ -860,6 +929,9 @@ case "${target}" in
|
||||
i[[3456789]]86-*-*)
|
||||
libgloss_dir=i386
|
||||
;;
|
||||
loongarch*-*-*)
|
||||
libgloss_dir=loongarch
|
||||
;;
|
||||
m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
|
||||
libgloss_dir=m68hc11
|
||||
;;
|
||||
@ -872,6 +944,9 @@ case "${target}" in
|
||||
powerpc*-*-*)
|
||||
libgloss_dir=rs6000
|
||||
;;
|
||||
pru-*-*)
|
||||
libgloss_dir=pru
|
||||
;;
|
||||
sparc*-*-*)
|
||||
libgloss_dir=sparc
|
||||
;;
|
||||
@ -903,6 +978,9 @@ case "${target}" in
|
||||
sparc-*-sunos4*)
|
||||
noconfigdirs="$noconfigdirs target-newlib target-libgloss"
|
||||
;;
|
||||
bpf-*-*)
|
||||
noconfigdirs="$noconfigdirs target-newlib target-libgloss"
|
||||
;;
|
||||
*-*-aix*)
|
||||
noconfigdirs="$noconfigdirs target-newlib target-libgloss"
|
||||
;;
|
||||
@ -951,6 +1029,8 @@ case "${target}" in
|
||||
noconfigdirs="$noconfigdirs ld gas gdb gprof"
|
||||
noconfigdirs="$noconfigdirs sim target-rda"
|
||||
;;
|
||||
amdgcn*-*-*)
|
||||
;;
|
||||
arm-*-darwin*)
|
||||
noconfigdirs="$noconfigdirs ld gas gdb gprof"
|
||||
noconfigdirs="$noconfigdirs sim target-rda"
|
||||
@ -974,7 +1054,8 @@ case "${target}" in
|
||||
*-*-dragonfly*)
|
||||
;;
|
||||
*-*-freebsd*)
|
||||
if test "x$with_gmp" = x && test "x$with_gmp_dir" = x \
|
||||
if test "x$with_gmp" = x \
|
||||
&& ! test -d ${srcdir}/gmp \
|
||||
&& test -f /usr/local/include/gmp.h; then
|
||||
with_gmp=/usr/local
|
||||
fi
|
||||
@ -1014,6 +1095,9 @@ case "${target}" in
|
||||
# newlib is not 64 bit ready
|
||||
noconfigdirs="$noconfigdirs target-newlib target-libgloss"
|
||||
;;
|
||||
bpf-*-*)
|
||||
noconfigdirs="$noconfigdirs target-libobjc target-libbacktrace"
|
||||
;;
|
||||
sh*-*-pe|mips*-*-pe|*arm-wince-pe)
|
||||
noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
|
||||
;;
|
||||
@ -1232,6 +1316,11 @@ case "${target}" in
|
||||
wasm32-*-*)
|
||||
noconfigdirs="$noconfigdirs ld"
|
||||
;;
|
||||
loongarch*-*-linux*)
|
||||
;;
|
||||
loongarch*-*-*)
|
||||
noconfigdirs="$noconfigdirs gprof"
|
||||
;;
|
||||
esac
|
||||
|
||||
# If we aren't building newlib, then don't build libgloss, since libgloss
|
||||
@ -1267,7 +1356,7 @@ case "${host}" in
|
||||
hppa*-*)
|
||||
host_makefile_frag="config/mh-pa"
|
||||
;;
|
||||
*-*-darwin*)
|
||||
i?86-*-darwin[[89]]* | i?86-*-darwin1[[0-7]]* | powerpc*-*-darwin*)
|
||||
host_makefile_frag="config/mh-darwin"
|
||||
;;
|
||||
powerpc-*-aix*)
|
||||
@ -1283,9 +1372,12 @@ if test "${build}" != "${host}" ; then
|
||||
AR_FOR_BUILD=${AR_FOR_BUILD-ar}
|
||||
AS_FOR_BUILD=${AS_FOR_BUILD-as}
|
||||
CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
|
||||
CPP_FOR_BUILD="${CPP_FOR_BUILD-\$(CC_FOR_BUILD) -E}"
|
||||
CXX_FOR_BUILD=${CXX_FOR_BUILD-g++}
|
||||
DSYMUTIL_FOR_BUILD=${DSYMUTIL_FOR_BUILD-dsymutil}
|
||||
GFORTRAN_FOR_BUILD=${GFORTRAN_FOR_BUILD-gfortran}
|
||||
GOC_FOR_BUILD=${GOC_FOR_BUILD-gccgo}
|
||||
GDC_FOR_BUILD=${GDC_FOR_BUILD-gdc}
|
||||
DLLTOOL_FOR_BUILD=${DLLTOOL_FOR_BUILD-dlltool}
|
||||
LD_FOR_BUILD=${LD_FOR_BUILD-ld}
|
||||
NM_FOR_BUILD=${NM_FOR_BUILD-nm}
|
||||
@ -1297,8 +1389,10 @@ else
|
||||
AS_FOR_BUILD="\$(AS)"
|
||||
CC_FOR_BUILD="\$(CC)"
|
||||
CXX_FOR_BUILD="\$(CXX)"
|
||||
DSYMUTIL_FOR_BUILD="\$(DSYMUTIL)"
|
||||
GFORTRAN_FOR_BUILD="\$(GFORTRAN)"
|
||||
GOC_FOR_BUILD="\$(GOC)"
|
||||
GDC_FOR_BUILD="\$(GDC)"
|
||||
DLLTOOL_FOR_BUILD="\$(DLLTOOL)"
|
||||
LD_FOR_BUILD="\$(LD)"
|
||||
NM_FOR_BUILD="\$(NM)"
|
||||
@ -1350,6 +1444,7 @@ int main() {}])],
|
||||
fi
|
||||
|
||||
ACX_PROG_GNAT
|
||||
ACX_PROG_GDC
|
||||
ACX_PROG_CMP_IGNORE_INITIAL
|
||||
|
||||
AC_ARG_ENABLE([bootstrap],
|
||||
@ -1395,10 +1490,17 @@ case "$have_compiler:$host:$target:$enable_bootstrap" in
|
||||
;;
|
||||
esac
|
||||
|
||||
# When bootstrapping with GCC, build stage 1 in C++98 mode to ensure that a
|
||||
# C++98 compiler can still start the bootstrap.
|
||||
# When bootstrapping with GCC, build stage 1 in C++11 mode to ensure that a
|
||||
# C++11 compiler can still start the bootstrap. Otherwise, if building GCC,
|
||||
# require C++11 (or higher).
|
||||
if test "$enable_bootstrap:$GXX" = "yes:yes"; then
|
||||
CXX="$CXX -std=gnu++98"
|
||||
CXX="$CXX -std=c++11"
|
||||
elif test "$have_compiler" = yes; then
|
||||
AX_CXX_COMPILE_STDCXX(11)
|
||||
|
||||
if test "${build}" != "${host}"; then
|
||||
AX_CXX_COMPILE_STDCXX(11, [], [], [_FOR_BUILD])
|
||||
fi
|
||||
fi
|
||||
|
||||
AC_ARG_ENABLE([pgo-build],
|
||||
@ -1504,11 +1606,6 @@ fi
|
||||
|
||||
# Specify a location for mpfr
|
||||
# check for this first so it ends up on the link line before gmp.
|
||||
AC_ARG_WITH(mpfr-dir,
|
||||
[AS_HELP_STRING([--with-mpfr-dir=PATH], [this option has been REMOVED])],
|
||||
[AC_MSG_ERROR([The --with-mpfr-dir=PATH option has been removed.
|
||||
Use --with-mpfr=PATH or --with-mpfr-include=PATH plus --with-mpfr-lib=PATH])])
|
||||
|
||||
AC_ARG_WITH(mpfr,
|
||||
[AS_HELP_STRING([--with-mpfr=PATH],
|
||||
[specify prefix directory for installed MPFR package.
|
||||
@ -1548,11 +1645,6 @@ Building GCC with MPFR in the source tree is only handled for MPFR 3.1.0+.])
|
||||
fi
|
||||
|
||||
# Specify a location for gmp
|
||||
AC_ARG_WITH(gmp-dir,
|
||||
[AS_HELP_STRING([--with-gmp-dir=PATH], [this option has been REMOVED])],
|
||||
[AC_MSG_ERROR([The --with-gmp-dir=PATH option has been removed.
|
||||
Use --with-gmp=PATH or --with-gmp-include=PATH plus --with-gmp-lib=PATH])])
|
||||
|
||||
AC_ARG_WITH(gmp,
|
||||
[AS_HELP_STRING([--with-gmp=PATH],
|
||||
[specify prefix directory for the installed GMP package.
|
||||
@ -1616,12 +1708,12 @@ if test -d ${srcdir}/gcc && test "x$have_gmp" = xno; then
|
||||
AC_MSG_CHECKING([for the correct version of mpfr.h])
|
||||
AC_TRY_COMPILE([#include <gmp.h>
|
||||
#include <mpfr.h>],[
|
||||
#if MPFR_VERSION < MPFR_VERSION_NUM(2,4,0)
|
||||
#if MPFR_VERSION < MPFR_VERSION_NUM(3,1,0)
|
||||
choke me
|
||||
#endif
|
||||
], [AC_TRY_COMPILE([#include <gmp.h>
|
||||
#include <mpfr.h>],[
|
||||
#if MPFR_VERSION < MPFR_VERSION_NUM(2,4,2)
|
||||
#if MPFR_VERSION < MPFR_VERSION_NUM(3,1,6)
|
||||
choke me
|
||||
#endif
|
||||
], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
|
||||
@ -1656,9 +1748,9 @@ if test -d ${srcdir}/gcc && test "x$have_gmp" = xno; then
|
||||
int t;
|
||||
mpfr_init (n);
|
||||
mpfr_init (x);
|
||||
mpfr_atan2 (n, n, x, GMP_RNDN);
|
||||
mpfr_erfc (n, x, GMP_RNDN);
|
||||
mpfr_subnormalize (x, t, GMP_RNDN);
|
||||
mpfr_atan2 (n, n, x, MPFR_RNDN);
|
||||
mpfr_erfc (n, x, MPFR_RNDN);
|
||||
mpfr_subnormalize (x, t, MPFR_RNDN);
|
||||
mpfr_clear(n);
|
||||
mpfr_clear(x);
|
||||
mpc_init2 (c, 53);
|
||||
@ -1676,11 +1768,11 @@ if test -d ${srcdir}/gcc && test "x$have_gmp" = xno; then
|
||||
# The library versions listed in the error message below should match
|
||||
# the HARD-minimums enforced above.
|
||||
if test x$have_gmp != xyes; then
|
||||
AC_MSG_ERROR([Building GCC requires GMP 4.2+, MPFR 2.4.0+ and MPC 0.8.0+.
|
||||
AC_MSG_ERROR([Building GCC requires GMP 4.2+, MPFR 3.1.0+ and MPC 0.8.0+.
|
||||
Try the --with-gmp, --with-mpfr and/or --with-mpc options to specify
|
||||
their locations. Source code for these libraries can be found at
|
||||
their respective hosting sites as well as at
|
||||
ftp://gcc.gnu.org/pub/gcc/infrastructure/. See also
|
||||
https://gcc.gnu.org/pub/gcc/infrastructure/. See also
|
||||
http://gcc.gnu.org/install/prerequisites.html for additional info. If
|
||||
you obtained GMP, MPFR and/or MPC from a vendor distribution package,
|
||||
make sure that you have installed both the libraries and the header
|
||||
@ -1855,7 +1947,20 @@ AC_SUBST(extra_linker_plugin_flags)
|
||||
AC_ARG_ENABLE(host-shared,
|
||||
[AS_HELP_STRING([--enable-host-shared],
|
||||
[build host code as shared libraries])],
|
||||
[host_shared=$enableval], [host_shared=no])
|
||||
[host_shared=$enableval
|
||||
case $host in
|
||||
x86_64-*-darwin* | aarch64-*-darwin*)
|
||||
if test x$host_shared != xyes ; then
|
||||
# PIC is the default, and actually cannot be switched off.
|
||||
echo configure.ac: warning: PIC code is required for the configured target, host-shared setting ignored. 1>&2
|
||||
host_shared=yes
|
||||
fi ;;
|
||||
*) ;;
|
||||
esac],
|
||||
[case $host in
|
||||
x86_64-*-darwin* | aarch64-*-darwin*) host_shared=yes ;;
|
||||
*) host_shared=no ;;
|
||||
esac])
|
||||
AC_SUBST(host_shared)
|
||||
|
||||
# By default, C and C++ are the only stage 1 languages.
|
||||
@ -2070,10 +2175,31 @@ if test -d ${srcdir}/gcc; then
|
||||
;;
|
||||
esac
|
||||
|
||||
# Disable D if no preexisting GDC is available.
|
||||
case ${add_this_lang}:${language}:${have_gdc} in
|
||||
yes:d:no)
|
||||
# Specifically requested language; tell them.
|
||||
AC_MSG_ERROR([GDC is required to build $language])
|
||||
;;
|
||||
all:d:no)
|
||||
AC_MSG_WARN([GDC is required to build $language])
|
||||
add_this_lang=unsupported
|
||||
;;
|
||||
*:d:no)
|
||||
# Silently disable.
|
||||
add_this_lang=unsupported
|
||||
;;
|
||||
esac
|
||||
|
||||
# Disable jit if -enable-host-shared not specified
|
||||
case ${add_this_lang}:${language}:${host_shared} in
|
||||
yes:jit:no)
|
||||
# PR jit/64780: explicitly specify --enable-host-shared
|
||||
# but not if building for Mingw. All code in Windows
|
||||
# is position independent code (PIC).
|
||||
case $target in
|
||||
*mingw*) ;;
|
||||
*)
|
||||
case ${add_this_lang}:${language}:${host_shared} in
|
||||
yes:jit:no)
|
||||
# PR jit/64780: explicitly specify --enable-host-shared
|
||||
AC_MSG_ERROR([
|
||||
Enabling language "jit" requires --enable-host-shared.
|
||||
|
||||
@ -2084,16 +2210,18 @@ If you want to build both the jit and the regular compiler, it is often
|
||||
best to do this via two separate configure/builds, in separate
|
||||
directories, to avoid imposing the performance cost of
|
||||
--enable-host-shared on the regular compiler.])
|
||||
;;
|
||||
all:jit:no)
|
||||
AC_MSG_WARN([--enable-host-shared required to build $language])
|
||||
add_this_lang=unsupported
|
||||
;;
|
||||
*:jit:no)
|
||||
# Silently disable.
|
||||
add_this_lang=unsupported
|
||||
;;
|
||||
esac
|
||||
;;
|
||||
all:jit:no)
|
||||
AC_MSG_WARN([--enable-host-shared required to build $language])
|
||||
add_this_lang=unsupported
|
||||
;;
|
||||
*:jit:no)
|
||||
# Silently disable.
|
||||
add_this_lang=unsupported
|
||||
;;
|
||||
esac
|
||||
;;
|
||||
esac
|
||||
|
||||
# Disable a language that is unsupported by the target.
|
||||
case "${add_this_lang}: $unsupported_languages " in
|
||||
@ -2130,7 +2258,7 @@ directories, to avoid imposing the performance cost of
|
||||
*) stage1_languages="${stage1_languages}${language}," ;;
|
||||
esac
|
||||
# We need to bootstrap any supporting libraries.
|
||||
bootstrap_target_libs="${bootstrap_target_libs}${target_libs},"
|
||||
bootstrap_target_libs=`echo "${bootstrap_target_libs}${target_libs}," | sed "s/ /,/g"`
|
||||
;;
|
||||
esac
|
||||
;;
|
||||
@ -2804,7 +2932,7 @@ fi
|
||||
# or bootstrap-ubsan, bootstrap it.
|
||||
if echo " ${target_configdirs} " | grep " libsanitizer " > /dev/null 2>&1; then
|
||||
case "$BUILD_CONFIG" in
|
||||
*bootstrap-asan* | *bootstrap-ubsan* )
|
||||
*bootstrap-hwasan* | *bootstrap-asan* | *bootstrap-ubsan* )
|
||||
bootstrap_target_libs=${bootstrap_target_libs}target-libsanitizer,
|
||||
bootstrap_fixincludes=yes
|
||||
;;
|
||||
@ -2817,6 +2945,16 @@ if echo " ${target_configdirs} " | grep " libvtv " > /dev/null 2>&1 &&
|
||||
bootstrap_target_libs=${bootstrap_target_libs}target-libvtv,
|
||||
fi
|
||||
|
||||
# If we are building libatomic and the list of enabled languages includes the
|
||||
# D frontend, bootstrap it.
|
||||
if echo " ${target_configdirs} " | grep " libatomic " > /dev/null 2>&1; then
|
||||
case ,${enable_languages}, in
|
||||
*,d,*)
|
||||
bootstrap_target_libs=${bootstrap_target_libs}target-libatomic,
|
||||
;;
|
||||
esac
|
||||
fi
|
||||
|
||||
# Determine whether gdb needs tk/tcl or not.
|
||||
# Use 'maybe' since enable_gdbtk might be true even if tk isn't available
|
||||
# and in that case we want gdb to be built without tk. Ugh!
|
||||
@ -3354,6 +3492,17 @@ case "${target}" in
|
||||
mep*)
|
||||
FLAGS_FOR_TARGET="$FLAGS_FOR_TARGET -mlibrary"
|
||||
;;
|
||||
# The VxWorks support for shared libraries is getting in
|
||||
# incrementally. Make sure it doesn't get activated implicitly:
|
||||
*vxworks*)
|
||||
if test "${enable_shared-unset}" = unset ; then
|
||||
enable_shared=no
|
||||
# So the build of libraries knows ...
|
||||
target_configargs="${target_configargs} --disable-shared"
|
||||
# So gcc knows ...
|
||||
host_configargs="${host_configargs} --disable-shared"
|
||||
fi
|
||||
;;
|
||||
esac
|
||||
|
||||
# Makefile fragments.
|
||||
@ -3396,12 +3545,15 @@ AC_SUBST(AR_FOR_BUILD)
|
||||
AC_SUBST(AS_FOR_BUILD)
|
||||
AC_SUBST(CC_FOR_BUILD)
|
||||
AC_SUBST(CFLAGS_FOR_BUILD)
|
||||
AC_SUBST(CPP_FOR_BUILD)
|
||||
AC_SUBST(CPPFLAGS_FOR_BUILD)
|
||||
AC_SUBST(CXXFLAGS_FOR_BUILD)
|
||||
AC_SUBST(CXX_FOR_BUILD)
|
||||
AC_SUBST(DLLTOOL_FOR_BUILD)
|
||||
AC_SUBST(DSYMUTIL_FOR_BUILD)
|
||||
AC_SUBST(GFORTRAN_FOR_BUILD)
|
||||
AC_SUBST(GOC_FOR_BUILD)
|
||||
AC_SUBST(GDC_FOR_BUILD)
|
||||
AC_SUBST(LDFLAGS_FOR_BUILD)
|
||||
AC_SUBST(LD_FOR_BUILD)
|
||||
AC_SUBST(NM_FOR_BUILD)
|
||||
@ -3478,6 +3630,7 @@ esac
|
||||
NCN_STRICT_CHECK_TOOLS(AR, ar)
|
||||
NCN_STRICT_CHECK_TOOLS(AS, as)
|
||||
NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool)
|
||||
NCN_STRICT_CHECK_TOOLS(DSYMUTIL, dsymutil)
|
||||
NCN_STRICT_CHECK_TOOLS(LD, ld)
|
||||
NCN_STRICT_CHECK_TOOLS(LIPO, lipo)
|
||||
NCN_STRICT_CHECK_TOOLS(NM, nm)
|
||||
@ -3487,12 +3640,14 @@ NCN_STRICT_CHECK_TOOLS(WINDRES, windres)
|
||||
NCN_STRICT_CHECK_TOOLS(WINDMC, windmc)
|
||||
NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy)
|
||||
NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
|
||||
NCN_STRICT_CHECK_TOOLS(OTOOL, otool)
|
||||
NCN_STRICT_CHECK_TOOLS(READELF, readelf)
|
||||
AC_SUBST(CC)
|
||||
AC_SUBST(CXX)
|
||||
AC_SUBST(CFLAGS)
|
||||
AC_SUBST(CXXFLAGS)
|
||||
AC_SUBST(PKG_CONFIG_PATH)
|
||||
AC_SUBST(GDC)
|
||||
AC_SUBST(GDCFLAGS)
|
||||
|
||||
GCC_PLUGIN_OPTION(PLUGIN_OPTION)
|
||||
AR_PLUGIN_OPTION=
|
||||
@ -3504,10 +3659,6 @@ if test -n "$PLUGIN_OPTION"; then
|
||||
if $RANLIB --help 2>&1 | grep -q "\--plugin"; then
|
||||
RANLIB_PLUGIN_OPTION="$PLUGIN_OPTION"
|
||||
fi
|
||||
else
|
||||
if test "$enable_pgo_build" != "no"; then
|
||||
AC_MSG_ERROR([AR with --plugin and rc is required for LTO build])
|
||||
fi
|
||||
fi
|
||||
AC_SUBST(AR_PLUGIN_OPTION)
|
||||
AC_SUBST(RANLIB_PLUGIN_OPTION)
|
||||
@ -3530,15 +3681,18 @@ NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx)
|
||||
NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET})
|
||||
NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran)
|
||||
NCN_STRICT_CHECK_TARGET_TOOLS(GOC_FOR_TARGET, gccgo)
|
||||
NCN_STRICT_CHECK_TARGET_TOOLS(GDC_FOR_TARGET, gdc)
|
||||
|
||||
ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar)
|
||||
ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as)
|
||||
ACX_CHECK_INSTALLED_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool)
|
||||
ACX_CHECK_INSTALLED_TARGET_TOOL(DSYMUTIL_FOR_TARGET, dsymutil)
|
||||
ACX_CHECK_INSTALLED_TARGET_TOOL(LD_FOR_TARGET, ld)
|
||||
ACX_CHECK_INSTALLED_TARGET_TOOL(LIPO_FOR_TARGET, lipo)
|
||||
ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm)
|
||||
ACX_CHECK_INSTALLED_TARGET_TOOL(OBJCOPY_FOR_TARGET, objcopy)
|
||||
ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump)
|
||||
ACX_CHECK_INSTALLED_TARGET_TOOL(OTOOL_FOR_TARGET, otool)
|
||||
ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib)
|
||||
ACX_CHECK_INSTALLED_TARGET_TOOL(READELF_FOR_TARGET, readelf)
|
||||
ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip)
|
||||
@ -3558,16 +3712,20 @@ GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX,
|
||||
[gcc/xgcc -shared-libgcc -B$$r/$(HOST_SUBDIR)/gcc -nostdinc++ -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/libsupc++/.libs],
|
||||
c++)
|
||||
GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool])
|
||||
GCC_TARGET_TOOL(dsymutil, DSYMUTIL_FOR_TARGET, DSYMUTIL)
|
||||
GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
|
||||
GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN,
|
||||
[gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran)
|
||||
GCC_TARGET_TOOL(gccgo, GOC_FOR_TARGET, GOC,
|
||||
[gcc/gccgo -B$$r/$(HOST_SUBDIR)/gcc/], go)
|
||||
GCC_TARGET_TOOL(gdc, GDC_FOR_TARGET, GDC,
|
||||
[gcc/gdc -B$$r/$(HOST_SUBDIR)/gcc/], d)
|
||||
GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new])
|
||||
GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO)
|
||||
GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new])
|
||||
GCC_TARGET_TOOL(objcopy, OBJCOPY_FOR_TARGET, OBJCOPY, [binutils/objcopy])
|
||||
GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump])
|
||||
GCC_TARGET_TOOL(otool, OTOOL_FOR_TARGET, OTOOL)
|
||||
GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib])
|
||||
GCC_TARGET_TOOL(readelf, READELF_FOR_TARGET, READELF, [binutils/readelf])
|
||||
GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip-new])
|
||||
@ -3690,8 +3848,8 @@ AC_SUBST(stage2_werror_flag)
|
||||
compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/*"
|
||||
case "$target" in
|
||||
hppa*64*-*-hpux*) ;;
|
||||
hppa*-*-hpux*) compare_exclusions="gcc/cc*-checksum\$(objext) | */libgcc/lib2funcs* | gcc/ada/*tools/* | gcc/function-tests.o" ;;
|
||||
powerpc*-ibm-aix*) compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/* | *libgomp*\$(objext)" ;;
|
||||
hppa*-*-hpux*) compare_exclusions="$compare_exclusions | */libgcc/lib2funcs* | gcc/function-tests.o" ;;
|
||||
powerpc*-ibm-aix*) compare_exclusions="$compare_exclusions | *libgomp*\$(objext)" ;;
|
||||
esac
|
||||
AC_SUBST(compare_exclusions)
|
||||
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user