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Merge pull request #304 from ViliusSutkus89/long_double_not_double

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CMake changes: Long double/double size detection, Android x86 and armv7 support, install pkg-config pc file
This commit is contained in:
Vilius Sutkus '89
2024-06-25 16:36:07 +03:00
committed by GitHub
parent f10ba452b2 c1e8462f8d
commit f644978097
1 changed files with 36 additions and 12 deletions
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CMakeLists.txt
+36 -12
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@@ -1,7 +1,11 @@
cmake_minimum_required(VERSION 3.25)
# Get version string from Make.inc
file(READ "${CMAKE_CURRENT_LIST_DIR}/Make.inc" MAKE_FILE)
string(REGEX MATCH "VERSION = ([0-9\.]+)" _ ${MAKE_FILE})
project(openlibm
VERSION 0.8.2
VERSION ${CMAKE_MATCH_1}
LANGUAGES C ASM)
option(BUILD_SHARED_LIBS "Build using shared libraries" ON)
@@ -16,7 +20,9 @@ if(${OPENLIBM_ARCH_FOLDER} STREQUAL "amd64" OR ${OPENLIBM_ARCH_FOLDER} STREQUAL
set(OPENLIBM_ARCH_FOLDER "amd64")
elseif(${OPENLIBM_ARCH_FOLDER} STREQUAL "arm64" OR ${OPENLIBM_ARCH_FOLDER} STREQUAL "aarch64")
set(OPENLIBM_ARCH_FOLDER "aarch64")
elseif(${OPENLIBM_ARCH_FOLDER} STREQUAL "x86")
elseif(${OPENLIBM_ARCH_FOLDER} STREQUAL "armv7-a")
set(OPENLIBM_ARCH_FOLDER "arm")
elseif(${OPENLIBM_ARCH_FOLDER} STREQUAL "x86" OR ${OPENLIBM_ARCH_FOLDER} STREQUAL "i686")
set(OPENLIBM_ARCH_FOLDER "i387")
elseif(${OPENLIBM_ARCH_FOLDER} STREQUAL "powerpc")
set(OPENLIBM_ARCH_FOLDER "powerpc")
@@ -55,16 +61,6 @@ endif()
# Add compile flags
target_compile_options("${PROJECT_NAME}" PUBLIC ${C_ASM_COMPILE_FLAGS})
# Determine if long double and double is the same on current platform
if(${OPENLIBM_ARCH_FOLDER} STREQUAL "i387" OR ${OPENLIBM_ARCH_FOLDER} STREQUAL "amd64")
set(LONG_DOUBLE_NOT_DOUBLE 1)
elseif(${OPENLIBM_ARCH_FOLDER} STREQUAL "aarch64")
if(NOT (${CMAKE_SYSTEM_NAME} STREQUAL "Darwin" OR ${CMAKE_SYSTEM_NAME} STREQUAL "Windows"))
set(LONG_DOUBLE_NOT_DOUBLE 1)
endif()
endif()
# Project Source
set(PROJECT_SRC "${PROJECT_SOURCE_DIR}")
@@ -257,6 +253,16 @@ if(NOT ${CMAKE_SYSTEM_NAME} STREQUAL "Windows")
)
endif()
# Determine if long double and double are the same size
include(CheckCSourceCompiles)
check_c_source_compiles("
#include <float.h>
#if (LDBL_MANT_DIG == DBL_MANT_DIG)
#error \"long double and double are the same size\"
#endif
int main(void ) { return 0; }
" LONG_DOUBLE_NOT_DOUBLE)
# Add in long double functions for x86, x64 and aarch64
if(LONG_DOUBLE_NOT_DOUBLE)
list(APPEND OPENLIBM_C_SOURCE
@@ -428,6 +434,11 @@ elseif(${OPENLIBM_ARCH_FOLDER} STREQUAL "aarch64")
"${PROJECT_SRC}/aarch64/fenv.c"
)
elseif(${OPENLIBM_ARCH_FOLDER} STREQUAL "arm")
list(APPEND OPENLIBM_C_SOURCE
"${PROJECT_SRC}/${OPENLIBM_ARCH_FOLDER}/fenv.c"
)
elseif(${OPENLIBM_ARCH_FOLDER} STREQUAL "i387")
list(APPEND OPENLIBM_C_SOURCE
"${PROJECT_SRC}/i387/fenv.c"
@@ -545,3 +556,16 @@ target_include_directories("${PROJECT_NAME}" PUBLIC ${OPENLIBM_INCLUDE_DIRS})
file(GLOB PUBLIC_HEADERS "*.h" "include/*.h" "${OPENLIBM_ARCH_FOLDER}/*.h" "src/*.h")
set_target_properties("${PROJECT_NAME}" PROPERTIES PUBLIC_HEADER "${PUBLIC_HEADERS}")
install (TARGETS "${PROJECT_NAME}")
# Can't use configure_file because openlibm.pc.in uses $var instead of CMake configure @var's
# Would rather string replace variables here instead of editing .pc.in, because editing .pc.in
# might build break autotools build.
file(READ "${PROJECT_SRC}/openlibm.pc.in" PC_FILE)
string(REPLACE "\${version}" ${CMAKE_PROJECT_VERSION} PC_FILE ${PC_FILE})
string(PREPEND PC_FILE "prefix=${CMAKE_INSTALL_PREFIX}
includedir=\${prefix}/${CMAKE_INSTALL_INCLUDEDIR}
libdir=\${prefix}/${CMAKE_INSTALL_LIBDIR}\n
")
file(WRITE "${CMAKE_BINARY_DIR}/${PROJECT_NAME}.pc" ${PC_FILE})
install(FILES "${CMAKE_BINARY_DIR}/${PROJECT_NAME}.pc"
DESTINATION "${CMAKE_INSTALL_LIBDIR}/pkgconfig")