sim: use -Werror when probing for supported warning flags

When building with clang, we get: error: unknown warning option '-Wmissing-parameter-type' [-Werror,-Wunknown-warning-option] This is because clang only warns by default when encountering an unknown warning option, and the probe for supported warning flags is done without -Werror. All flags are therefore accepted by configure, but then it breaks when actually compiling a source file with -Werror. This is equivalent to this commit in gdb: 3e019bdc20eb81b91ab5bc774386201b874c0bac gdb: Use -Werror when checking for (un)supported warning flags We then see some other compilation errors when building with clang and -Werror, they can be dealt with later.
2021-04-21 14:51:10 -04:00 · 2021-04-21 14:51:10 -04:00 · 1f195bc327
commit 1f195bc327
parent 7e7a35fbca
64 changed files with 161 additions and 32 deletions
--- a/sim/ChangeLog
+++ b/sim/ChangeLog
@ -1,3 +1,8 @@
+2021-04-21  Simon Marchi  <simon.marchi@polymtl.ca>
+
+	* m4/sim_ac_option_warnings.m4 (SIM_AC_OPTION_WARNINGS): Use
+	-Werror when probing for supported warning flags.
+
 2021-04-18  Mike Frysinger  <vapier@gentoo.org>

 	* m4/sim_ac_common.m4: Change AC_CHECK_HEADERS to
--- a/sim/aarch64/ChangeLog
+++ b/sim/aarch64/ChangeLog
@ -1,3 +1,7 @@
+2021-04-21  Simon Marchi  <simon.marchi@polymtl.ca>
+
+	* configure: Regenerate.
+
 2021-04-18  Mike Frysinger  <vapier@gentoo.org>

 	* configure: Regenerate.
--- a/sim/aarch64/configure
+++ b/sim/aarch64/configure
@ -12076,7 +12076,7 @@ $as_echo_n "checking compiler warning flags... " >&6; }
 	-Werr*) WERROR_CFLAGS=-Werror ;;
 	*) # Check that GCC accepts it
 	    saved_CFLAGS="$CFLAGS"
-	    CFLAGS="$CFLAGS $w"
+	    CFLAGS="$CFLAGS -Werror $w"
 	    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */

--- a/sim/arm/ChangeLog
+++ b/sim/arm/ChangeLog
@ -1,3 +1,7 @@
+2021-04-21  Simon Marchi  <simon.marchi@polymtl.ca>
+
+	* configure: Regenerate.
+
 2021-04-18  Mike Frysinger  <vapier@gentoo.org>

 	* configure: Regenerate.
--- a/sim/arm/configure
+++ b/sim/arm/configure
@ -12072,7 +12072,7 @@ $as_echo_n "checking compiler warning flags... " >&6; }
 	-Werr*) WERROR_CFLAGS=-Werror ;;
 	*) # Check that GCC accepts it
 	    saved_CFLAGS="$CFLAGS"
-	    CFLAGS="$CFLAGS $w"
+	    CFLAGS="$CFLAGS -Werror $w"
 	    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */

--- a/sim/avr/ChangeLog
+++ b/sim/avr/ChangeLog
@ -1,3 +1,7 @@
+2021-04-21  Simon Marchi  <simon.marchi@polymtl.ca>
+
+	* configure: Regenerate.
+
 2021-04-18  Mike Frysinger  <vapier@gentoo.org>

 	* configure: Regenerate.
--- a/sim/avr/configure
+++ b/sim/avr/configure
@ -12072,7 +12072,7 @@ $as_echo_n "checking compiler warning flags... " >&6; }
 	-Werr*) WERROR_CFLAGS=-Werror ;;
 	*) # Check that GCC accepts it
 	    saved_CFLAGS="$CFLAGS"
-	    CFLAGS="$CFLAGS $w"
+	    CFLAGS="$CFLAGS -Werror $w"
 	    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */

--- a/sim/bfin/ChangeLog
+++ b/sim/bfin/ChangeLog
@ -1,3 +1,7 @@
+2021-04-21  Simon Marchi  <simon.marchi@polymtl.ca>
+
+	* configure: Regenerate.
+
 2021-04-18  Mike Frysinger  <vapier@gentoo.org>

 	* configure.ac: Change AC_CHECK_HEADERS to AC_CHECK_HEADERS_ONCE.
--- a/sim/bfin/configure
+++ b/sim/bfin/configure
@ -12124,7 +12124,7 @@ $as_echo_n "checking compiler warning flags... " >&6; }
 	-Werr*) WERROR_CFLAGS=-Werror ;;
 	*) # Check that GCC accepts it
 	    saved_CFLAGS="$CFLAGS"
-	    CFLAGS="$CFLAGS $w"
+	    CFLAGS="$CFLAGS -Werror $w"
 	    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */

--- a/sim/bpf/ChangeLog
+++ b/sim/bpf/ChangeLog
@ -1,3 +1,7 @@
+2021-04-21  Simon Marchi  <simon.marchi@polymtl.ca>
+
+	* configure: Regenerate.
+
 2021-04-18  Mike Frysinger  <vapier@gentoo.org>

 	* configure: Regenerate.
--- a/sim/bpf/configure
+++ b/sim/bpf/configure
@ -12176,7 +12176,7 @@ $as_echo_n "checking compiler warning flags... " >&6; }
 	-Werr*) WERROR_CFLAGS=-Werror ;;
 	*) # Check that GCC accepts it
 	    saved_CFLAGS="$CFLAGS"
-	    CFLAGS="$CFLAGS $w"
+	    CFLAGS="$CFLAGS -Werror $w"
 	    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */

--- a/sim/cr16/ChangeLog
+++ b/sim/cr16/ChangeLog
@ -1,3 +1,7 @@
+2021-04-21  Simon Marchi  <simon.marchi@polymtl.ca>
+
+	* configure: Regenerate.
+
 2021-04-18  Mike Frysinger  <vapier@gentoo.org>

 	* configure: Regenerate.
--- a/sim/cr16/configure
+++ b/sim/cr16/configure
@ -12073,7 +12073,7 @@ $as_echo_n "checking compiler warning flags... " >&6; }
 	-Werr*) WERROR_CFLAGS=-Werror ;;
 	*) # Check that GCC accepts it
 	    saved_CFLAGS="$CFLAGS"
-	    CFLAGS="$CFLAGS $w"
+	    CFLAGS="$CFLAGS -Werror $w"
 	    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */

--- a/sim/cris/ChangeLog
+++ b/sim/cris/ChangeLog
@ -1,3 +1,7 @@
+2021-04-21  Simon Marchi  <simon.marchi@polymtl.ca>
+
+	* configure: Regenerate.
+
 2021-04-18  Mike Frysinger  <vapier@gentoo.org>

 	* configure.ac: Change AC_CHECK_HEADERS to AC_CHECK_HEADERS_ONCE.
--- a/sim/cris/configure
+++ b/sim/cris/configure
@ -12114,7 +12114,7 @@ $as_echo_n "checking compiler warning flags... " >&6; }
 	-Werr*) WERROR_CFLAGS=-Werror ;;
 	*) # Check that GCC accepts it
 	    saved_CFLAGS="$CFLAGS"
-	    CFLAGS="$CFLAGS $w"
+	    CFLAGS="$CFLAGS -Werror $w"
 	    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */

--- a/sim/d10v/ChangeLog
+++ b/sim/d10v/ChangeLog
@ -1,3 +1,7 @@
+2021-04-21  Simon Marchi  <simon.marchi@polymtl.ca>
+
+	* configure: Regenerate.
+
 2021-04-18  Mike Frysinger  <vapier@gentoo.org>

 	* configure: Regenerate.
--- a/sim/d10v/configure
+++ b/sim/d10v/configure
@ -12073,7 +12073,7 @@ $as_echo_n "checking compiler warning flags... " >&6; }
 	-Werr*) WERROR_CFLAGS=-Werror ;;
 	*) # Check that GCC accepts it
 	    saved_CFLAGS="$CFLAGS"
-	    CFLAGS="$CFLAGS $w"
+	    CFLAGS="$CFLAGS -Werror $w"
 	    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */

--- a/sim/erc32/ChangeLog
+++ b/sim/erc32/ChangeLog
@ -1,3 +1,7 @@
+2021-04-21  Simon Marchi  <simon.marchi@polymtl.ca>
+
+	* configure: Regenerate.
+
 2021-04-18  Mike Frysinger  <vapier@gentoo.org>

 	* configure: Regenerate.
--- a/sim/erc32/configure
+++ b/sim/erc32/configure
@ -11973,7 +11973,7 @@ $as_echo_n "checking compiler warning flags... " >&6; }
 	-Werr*) WERROR_CFLAGS=-Werror ;;
 	*) # Check that GCC accepts it
 	    saved_CFLAGS="$CFLAGS"
-	    CFLAGS="$CFLAGS $w"
+	    CFLAGS="$CFLAGS -Werror $w"
 	    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */

--- a/sim/example-synacor/ChangeLog
+++ b/sim/example-synacor/ChangeLog
@ -1,3 +1,7 @@
+2021-04-21  Simon Marchi  <simon.marchi@polymtl.ca>
+
+	* configure: Regenerate.
+
 2021-04-18  Mike Frysinger  <vapier@gentoo.org>

 	* configure: Regenerate.
--- a/sim/example-synacor/configure
+++ b/sim/example-synacor/configure
@ -12073,7 +12073,7 @@ $as_echo_n "checking compiler warning flags... " >&6; }
 	-Werr*) WERROR_CFLAGS=-Werror ;;
 	*) # Check that GCC accepts it
 	    saved_CFLAGS="$CFLAGS"
-	    CFLAGS="$CFLAGS $w"
+	    CFLAGS="$CFLAGS -Werror $w"
 	    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */

--- a/sim/frv/ChangeLog
+++ b/sim/frv/ChangeLog
@ -1,3 +1,7 @@
+2021-04-21  Simon Marchi  <simon.marchi@polymtl.ca>
+
+	* configure: Regenerate.
+
 2021-04-18  Mike Frysinger  <vapier@gentoo.org>

 	* configure: Regenerate.
--- a/sim/frv/configure
+++ b/sim/frv/configure
@ -12121,7 +12121,7 @@ $as_echo_n "checking compiler warning flags... " >&6; }
 	-Werr*) WERROR_CFLAGS=-Werror ;;
 	*) # Check that GCC accepts it
 	    saved_CFLAGS="$CFLAGS"
-	    CFLAGS="$CFLAGS $w"
+	    CFLAGS="$CFLAGS -Werror $w"
 	    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */

--- a/sim/ft32/ChangeLog
+++ b/sim/ft32/ChangeLog
@ -1,3 +1,7 @@
+2021-04-21  Simon Marchi  <simon.marchi@polymtl.ca>
+
+	* configure: Regenerate.
+
 2021-04-18  Mike Frysinger  <vapier@gentoo.org>

 	* configure: Regenerate.
--- a/sim/ft32/configure
+++ b/sim/ft32/configure
@ -12072,7 +12072,7 @@ $as_echo_n "checking compiler warning flags... " >&6; }
 	-Werr*) WERROR_CFLAGS=-Werror ;;
 	*) # Check that GCC accepts it
 	    saved_CFLAGS="$CFLAGS"
-	    CFLAGS="$CFLAGS $w"
+	    CFLAGS="$CFLAGS -Werror $w"
 	    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */

--- a/sim/h8300/ChangeLog
+++ b/sim/h8300/ChangeLog
@ -1,3 +1,7 @@
+2021-04-21  Simon Marchi  <simon.marchi@polymtl.ca>
+
+	* configure: Regenerate.
+
 2021-04-18  Mike Frysinger  <vapier@gentoo.org>

 	* configure.ac: Change AC_CHECK_HEADERS to AC_CHECK_HEADERS_ONCE.
--- a/sim/h8300/configure
+++ b/sim/h8300/configure
@ -12070,7 +12070,7 @@ $as_echo_n "checking compiler warning flags... " >&6; }
 	-Werr*) WERROR_CFLAGS=-Werror ;;
 	*) # Check that GCC accepts it
 	    saved_CFLAGS="$CFLAGS"
-	    CFLAGS="$CFLAGS $w"
+	    CFLAGS="$CFLAGS -Werror $w"
 	    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */

--- a/sim/iq2000/ChangeLog
+++ b/sim/iq2000/ChangeLog
@ -1,3 +1,7 @@
+2021-04-21  Simon Marchi  <simon.marchi@polymtl.ca>
+
+	* configure: Regenerate.
+
 2021-04-18  Mike Frysinger  <vapier@gentoo.org>

 	* configure: Regenerate.
--- a/sim/iq2000/configure
+++ b/sim/iq2000/configure
@ -12118,7 +12118,7 @@ $as_echo_n "checking compiler warning flags... " >&6; }
 	-Werr*) WERROR_CFLAGS=-Werror ;;
 	*) # Check that GCC accepts it
 	    saved_CFLAGS="$CFLAGS"
-	    CFLAGS="$CFLAGS $w"
+	    CFLAGS="$CFLAGS -Werror $w"
 	    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */

--- a/sim/lm32/ChangeLog
+++ b/sim/lm32/ChangeLog
@ -1,3 +1,7 @@
+2021-04-21  Simon Marchi  <simon.marchi@polymtl.ca>
+
+	* configure: Regenerate.
+
 2021-04-18  Mike Frysinger  <vapier@gentoo.org>

 	* configure: Regenerate.
--- a/sim/lm32/configure
+++ b/sim/lm32/configure
@ -12118,7 +12118,7 @@ $as_echo_n "checking compiler warning flags... " >&6; }
 	-Werr*) WERROR_CFLAGS=-Werror ;;
 	*) # Check that GCC accepts it
 	    saved_CFLAGS="$CFLAGS"
-	    CFLAGS="$CFLAGS $w"
+	    CFLAGS="$CFLAGS -Werror $w"
 	    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */

--- a/sim/m32c/ChangeLog
+++ b/sim/m32c/ChangeLog
@ -1,3 +1,7 @@
+2021-04-21  Simon Marchi  <simon.marchi@polymtl.ca>
+
+	* configure: Regenerate.
+
 2021-04-18  Mike Frysinger  <vapier@gentoo.org>

 	* configure.ac: Change AC_CHECK_HEADERS to AC_CHECK_HEADERS_ONCE.
--- a/sim/m32c/configure
+++ b/sim/m32c/configure
@ -11976,7 +11976,7 @@ $as_echo_n "checking compiler warning flags... " >&6; }
 	-Werr*) WERROR_CFLAGS=-Werror ;;
 	*) # Check that GCC accepts it
 	    saved_CFLAGS="$CFLAGS"
-	    CFLAGS="$CFLAGS $w"
+	    CFLAGS="$CFLAGS -Werror $w"
 	    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */

--- a/sim/m32r/ChangeLog
+++ b/sim/m32r/ChangeLog
@ -1,3 +1,7 @@
+2021-04-21  Simon Marchi  <simon.marchi@polymtl.ca>
+
+	* configure: Regenerate.
+
 2021-04-18  Mike Frysinger  <vapier@gentoo.org>

 	* configure: Regenerate.
--- a/sim/m32r/configure
+++ b/sim/m32r/configure
@ -12120,7 +12120,7 @@ $as_echo_n "checking compiler warning flags... " >&6; }
 	-Werr*) WERROR_CFLAGS=-Werror ;;
 	*) # Check that GCC accepts it
 	    saved_CFLAGS="$CFLAGS"
-	    CFLAGS="$CFLAGS $w"
+	    CFLAGS="$CFLAGS -Werror $w"
 	    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */

--- a/sim/m4/sim_ac_option_warnings.m4
+++ b/sim/m4/sim_ac_option_warnings.m4
@ -91,7 +91,7 @@ then
 	-Werr*) WERROR_CFLAGS=-Werror ;;
 	*) # Check that GCC accepts it
 	    saved_CFLAGS="$CFLAGS"
-	    CFLAGS="$CFLAGS $w"
+	    CFLAGS="$CFLAGS -Werror $w"
 	    AC_TRY_COMPILE([],[],WARN_CFLAGS="${WARN_CFLAGS} $w",)
 	    CFLAGS="$saved_CFLAGS"
 	esac
--- a/sim/m68hc11/ChangeLog
+++ b/sim/m68hc11/ChangeLog
@ -1,3 +1,7 @@
+2021-04-21  Simon Marchi  <simon.marchi@polymtl.ca>
+
+	* configure: Regenerate.
+
 2021-04-18  Mike Frysinger  <vapier@gentoo.org>

 	* configure: Regenerate.
--- a/sim/m68hc11/configure
+++ b/sim/m68hc11/configure
@ -12072,7 +12072,7 @@ $as_echo_n "checking compiler warning flags... " >&6; }
 	-Werr*) WERROR_CFLAGS=-Werror ;;
 	*) # Check that GCC accepts it
 	    saved_CFLAGS="$CFLAGS"
-	    CFLAGS="$CFLAGS $w"
+	    CFLAGS="$CFLAGS -Werror $w"
 	    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */

--- a/sim/mcore/ChangeLog
+++ b/sim/mcore/ChangeLog
@ -1,3 +1,7 @@
+2021-04-21  Simon Marchi  <simon.marchi@polymtl.ca>
+
+	* configure: Regenerate.
+
 2021-04-18  Mike Frysinger  <vapier@gentoo.org>

 	* configure: Regenerate.
--- a/sim/mcore/configure
+++ b/sim/mcore/configure
@ -12069,7 +12069,7 @@ $as_echo_n "checking compiler warning flags... " >&6; }
 	-Werr*) WERROR_CFLAGS=-Werror ;;
 	*) # Check that GCC accepts it
 	    saved_CFLAGS="$CFLAGS"
-	    CFLAGS="$CFLAGS $w"
+	    CFLAGS="$CFLAGS -Werror $w"
 	    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */

--- a/sim/microblaze/ChangeLog
+++ b/sim/microblaze/ChangeLog
@ -1,3 +1,7 @@
+2021-04-21  Simon Marchi  <simon.marchi@polymtl.ca>
+
+	* configure: Regenerate.
+
 2021-04-18  Mike Frysinger  <vapier@gentoo.org>

 	* configure: Regenerate.
--- a/sim/microblaze/configure
+++ b/sim/microblaze/configure
@ -12072,7 +12072,7 @@ $as_echo_n "checking compiler warning flags... " >&6; }
 	-Werr*) WERROR_CFLAGS=-Werror ;;
 	*) # Check that GCC accepts it
 	    saved_CFLAGS="$CFLAGS"
-	    CFLAGS="$CFLAGS $w"
+	    CFLAGS="$CFLAGS -Werror $w"
 	    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */

--- a/sim/mips/ChangeLog
+++ b/sim/mips/ChangeLog
@ -1,3 +1,7 @@
+2021-04-21  Simon Marchi  <simon.marchi@polymtl.ca>
+
+	* configure: Regenerate.
+
 2021-04-18  Mike Frysinger  <vapier@gentoo.org>

 	* configure: Regenerate.
--- a/sim/mips/configure
+++ b/sim/mips/configure
@ -12057,7 +12057,7 @@ $as_echo_n "checking compiler warning flags... " >&6; }
 	-Werr*) WERROR_CFLAGS=-Werror ;;
 	*) # Check that GCC accepts it
 	    saved_CFLAGS="$CFLAGS"
-	    CFLAGS="$CFLAGS $w"
+	    CFLAGS="$CFLAGS -Werror $w"
 	    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */

--- a/sim/mn10300/ChangeLog
+++ b/sim/mn10300/ChangeLog
@ -1,3 +1,7 @@
+2021-04-21  Simon Marchi  <simon.marchi@polymtl.ca>
+
+	* configure: Regenerate.
+
 2021-04-18  Mike Frysinger  <vapier@gentoo.org>

 	* configure: Regenerate.
--- a/sim/mn10300/configure
+++ b/sim/mn10300/configure
@ -12078,7 +12078,7 @@ $as_echo_n "checking compiler warning flags... " >&6; }
 	-Werr*) WERROR_CFLAGS=-Werror ;;
 	*) # Check that GCC accepts it
 	    saved_CFLAGS="$CFLAGS"
-	    CFLAGS="$CFLAGS $w"
+	    CFLAGS="$CFLAGS -Werror $w"
 	    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */

--- a/sim/moxie/ChangeLog
+++ b/sim/moxie/ChangeLog
@ -1,3 +1,7 @@
+2021-04-21  Simon Marchi  <simon.marchi@polymtl.ca>
+
+	* configure: Regenerate.
+
 2021-04-18  Mike Frysinger  <vapier@gentoo.org>

 	* configure: Regenerate.
--- a/sim/moxie/configure
+++ b/sim/moxie/configure
@ -12167,7 +12167,7 @@ $as_echo_n "checking compiler warning flags... " >&6; }
 	-Werr*) WERROR_CFLAGS=-Werror ;;
 	*) # Check that GCC accepts it
 	    saved_CFLAGS="$CFLAGS"
-	    CFLAGS="$CFLAGS $w"
+	    CFLAGS="$CFLAGS -Werror $w"
 	    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */

--- a/sim/msp430/ChangeLog
+++ b/sim/msp430/ChangeLog
@ -1,3 +1,7 @@
+2021-04-21  Simon Marchi  <simon.marchi@polymtl.ca>
+
+	* configure: Regenerate.
+
 2021-04-18  Mike Frysinger  <vapier@gentoo.org>

 	* configure: Regenerate.
--- a/sim/msp430/configure
+++ b/sim/msp430/configure
@ -12072,7 +12072,7 @@ $as_echo_n "checking compiler warning flags... " >&6; }
 	-Werr*) WERROR_CFLAGS=-Werror ;;
 	*) # Check that GCC accepts it
 	    saved_CFLAGS="$CFLAGS"
-	    CFLAGS="$CFLAGS $w"
+	    CFLAGS="$CFLAGS -Werror $w"
 	    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */

--- a/sim/or1k/ChangeLog
+++ b/sim/or1k/ChangeLog
@ -1,3 +1,7 @@
+2021-04-21  Simon Marchi  <simon.marchi@polymtl.ca>
+
+	* configure: Regenerate.
+
 2021-04-18  Mike Frysinger  <vapier@gentoo.org>

 	* configure: Regenerate.
--- a/sim/or1k/configure
+++ b/sim/or1k/configure
@ -12176,7 +12176,7 @@ $as_echo_n "checking compiler warning flags... " >&6; }
 	-Werr*) WERROR_CFLAGS=-Werror ;;
 	*) # Check that GCC accepts it
 	    saved_CFLAGS="$CFLAGS"
-	    CFLAGS="$CFLAGS $w"
+	    CFLAGS="$CFLAGS -Werror $w"
 	    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */

--- a/sim/pru/ChangeLog
+++ b/sim/pru/ChangeLog
@ -1,3 +1,7 @@
+2021-04-21  Simon Marchi  <simon.marchi@polymtl.ca>
+
+	* configure: Regenerate.
+
 2021-04-18  Mike Frysinger  <vapier@gentoo.org>

 	* configure: Regenerate.
--- a/sim/pru/configure
+++ b/sim/pru/configure
@ -12072,7 +12072,7 @@ $as_echo_n "checking compiler warning flags... " >&6; }
 	-Werr*) WERROR_CFLAGS=-Werror ;;
 	*) # Check that GCC accepts it
 	    saved_CFLAGS="$CFLAGS"
-	    CFLAGS="$CFLAGS $w"
+	    CFLAGS="$CFLAGS -Werror $w"
 	    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */

--- a/sim/riscv/ChangeLog
+++ b/sim/riscv/ChangeLog
@ -1,3 +1,7 @@
+2021-04-21  Simon Marchi  <simon.marchi@polymtl.ca>
+
+	* configure: Regenerate.
+
 2021-04-18  Mike Frysinger  <vapier@gentoo.org>

 	* configure: Regenerate.
--- a/sim/riscv/configure
+++ b/sim/riscv/configure
@ -12099,7 +12099,7 @@ $as_echo_n "checking compiler warning flags... " >&6; }
 	-Werr*) WERROR_CFLAGS=-Werror ;;
 	*) # Check that GCC accepts it
 	    saved_CFLAGS="$CFLAGS"
-	    CFLAGS="$CFLAGS $w"
+	    CFLAGS="$CFLAGS -Werror $w"
 	    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */

--- a/sim/rl78/ChangeLog
+++ b/sim/rl78/ChangeLog
@ -1,3 +1,7 @@
+2021-04-21  Simon Marchi  <simon.marchi@polymtl.ca>
+
+	* configure: Regenerate.
+
 2021-04-20  Mike Frysinger  <vapier@gentoo.org>

 	* configure.ac: Delete AC_CHECK_HEADERS_ONCE.
--- a/sim/rl78/configure
+++ b/sim/rl78/configure
@ -11970,7 +11970,7 @@ $as_echo_n "checking compiler warning flags... " >&6; }
 	-Werr*) WERROR_CFLAGS=-Werror ;;
 	*) # Check that GCC accepts it
 	    saved_CFLAGS="$CFLAGS"
-	    CFLAGS="$CFLAGS $w"
+	    CFLAGS="$CFLAGS -Werror $w"
 	    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */

--- a/sim/rx/ChangeLog
+++ b/sim/rx/ChangeLog
@ -1,3 +1,7 @@
+2021-04-21  Simon Marchi  <simon.marchi@polymtl.ca>
+
+	* configure: Regenerate.
+
 2021-04-20  Mike Frysinger  <vapier@gentoo.org>

 	* configure.ac: Delete AC_CHECK_HEADERS_ONCE.
--- a/sim/rx/configure
+++ b/sim/rx/configure
@ -12016,7 +12016,7 @@ $as_echo_n "checking compiler warning flags... " >&6; }
 	-Werr*) WERROR_CFLAGS=-Werror ;;
 	*) # Check that GCC accepts it
 	    saved_CFLAGS="$CFLAGS"
-	    CFLAGS="$CFLAGS $w"
+	    CFLAGS="$CFLAGS -Werror $w"
 	    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */

--- a/sim/sh/ChangeLog
+++ b/sim/sh/ChangeLog
@ -1,3 +1,7 @@
+2021-04-21  Simon Marchi  <simon.marchi@polymtl.ca>
+
+	* configure: Regenerate.
+
 2021-04-18  Mike Frysinger  <vapier@gentoo.org>

 	* configure: Regenerate.
--- a/sim/sh/configure
+++ b/sim/sh/configure
@ -12069,7 +12069,7 @@ $as_echo_n "checking compiler warning flags... " >&6; }
 	-Werr*) WERROR_CFLAGS=-Werror ;;
 	*) # Check that GCC accepts it
 	    saved_CFLAGS="$CFLAGS"
-	    CFLAGS="$CFLAGS $w"
+	    CFLAGS="$CFLAGS -Werror $w"
 	    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */

--- a/sim/v850/ChangeLog
+++ b/sim/v850/ChangeLog
@ -1,3 +1,7 @@
+2021-04-21  Simon Marchi  <simon.marchi@polymtl.ca>
+
+	* configure: Regenerate.
+
 2021-04-18  Mike Frysinger  <vapier@gentoo.org>

 	* configure.ac: Change AC_CHECK_HEADERS to AC_CHECK_HEADERS_ONCE.
--- a/sim/v850/configure
+++ b/sim/v850/configure
@ -12178,7 +12178,7 @@ $as_echo_n "checking compiler warning flags... " >&6; }
 	-Werr*) WERROR_CFLAGS=-Werror ;;
 	*) # Check that GCC accepts it
 	    saved_CFLAGS="$CFLAGS"
-	    CFLAGS="$CFLAGS $w"
+	    CFLAGS="$CFLAGS -Werror $w"
 	    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */