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CMake : Detect and set COMPILER_IS_GCC.

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This commit is contained in:
Erik de Castro Lopo 2014-07-12 23:17:21 +10:00
parent 8971af22d0
commit bfd1320d9c
3 changed files with 38 additions and 3 deletions
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11
CMake/compiler_is_gcc.c Normal file
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@ -0,0 +1,11 @@
int main (void)
{
#if __GNUC__
#if __clang__
This is clang
# endif
#else
This is not GCC.
#endif
return 0 ;
}

20
CMake/libsndfile.cmake Normal file
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@ -0,0 +1,20 @@
include (TestBigEndian)
function (try_compile_c_result C_FILE RESULT_NAME RESULT_PASS RESULT_FAIL)
try_compile (COMPILE_RESULT
${CMAKE_BINARY_DIR}
${CMAKE_CURRENT_SOURCE_DIR}/CMake/compiler_is_gcc.c
# OUTPUT_VARIABLE LOG2
)
if (${COMPILE_RESULT})
set (${RESULT_NAME} ${RESULT_PASS} PARENT_SCOPE)
else (${VARNAME})
set (${RESULT_NAME} ${RESULT_FAIL} PARENT_SCOPE)
endif (${COMPILE_RESULT})
endfunction ()
try_compile_c_result (CMake/compiler_is_gcc.c COMPILER_IS_GCC 1 0)

10
CMakeLists.txt
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@ -1,6 +1,12 @@
# cmakelists.txt for libsndfile
cmake_minimum_required (VERSION 2.8.12)
set (BASEPATH "${CMAKE_SOURCE_DIR}")
project (libsndfile C)
include (CMake/libsndfile.cmake)
if (MSVC)
set (CMAKE_C_FLAGS "${CMAKE_CXX_FLAGS} /wd4244 /wd4996")
add_definitions ("/wd4244 /wd4996")
@ -18,7 +24,7 @@ else (MSVC)
set (HAVE_INTTYPES_H 1)
set (HAVE_STDINT_H 1)
set (SIZEOF_LONG 4)
set (COMPILER_IS_GCC 1)
set (COMPILER_IS_GCC ${COMPILER_IS_GCC})
set (OS_IS_WIN32 0)
set (USE_WINDOWS_API 0)
set (SIZEOF_INT64_T 8)
@ -42,7 +48,6 @@ else (MSVC)
set (OSX_DARWIN_VERSION 0)
endif (MSVC)
include (TestBigEndian)
TEST_BIG_ENDIAN (BIGENDIAN)
if (${BIGENDIAN})
set (WORDS_BIGENDIAN 1)
@ -56,7 +61,6 @@ endif (${BIGENDIAN})
#-------------------------------------------------------------------------------
# Project definitions follow.
project (libsndfile C)
configure_file (src/sndfile.h.in src/sndfile.h)
configure_file (CMake/config.h.in src/config.h)