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cmake: reuse existing checks

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This commit is contained in:
Hugues Delorme 2015-12-04 10:36:27 +01:00
parent d5404814e7
commit 6ca001201b
1 changed files with 17 additions and 5 deletions
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22
CMakeLists.txt
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@ -78,11 +78,14 @@ endif()
set(CMAKE_REQUIRED_FLAGS "${CMAKE_C_FLAGS}")
# Some compilers (like GCC v4.9) don't disable <stdint.h> in STRICT_ANSI mode
# Some compilers (like GCC v4.9) don't disable <stdint.h> in C90 mode
check_include_files(stdint.h GMIO_HAVE_STDINT_H)
# Find size of short, int and long types
check_type_size("short" GMIO_SIZEOF_SHORT)
set(GMIO_SIZEOF_SHORT ${CMAKE_SIZEOF_UNSIGNED_SHORT})
if (NOT DEFINED HAVE_CMAKE_SIZEOF_UNSIGNED_SHORT)
check_type_size("short" GMIO_SIZEOF_SHORT)
endif()
check_type_size("int" GMIO_SIZEOF_INT)
check_type_size("long" GMIO_SIZEOF_LONG)
@ -136,9 +139,18 @@ if(NOT GMIO_BUILD_STRICT_C90)
endif()
endif()
check_include_files(sys/types.h GMIO_HAVE_SYS_TYPES_H)
check_include_files(sys/stat.h GMIO_HAVE_SYS_STAT_H)
set(GMIO_HAVE_SYS_TYPES_H ${HAVE_SYS_TYPES_H})
if(NOT DEFINED HAVE_SYS_TYPES_H)
check_include_files(sys/types.h GMIO_HAVE_SYS_TYPES_H)
endif()
set(GMIO_HAVE_SYS_STAT_H ${HAVE_SYS_STAT_H})
if (NOT DEFINED HAVE_SYS_STAT_H)
check_include_files(sys/stat.h GMIO_HAVE_SYS_STAT_H)
endif()
check_function_exists(fileno GMIO_HAVE_POSIX_FILENO_FUNC)
# Have fstat64() ?
check_c_source_compiles(
"#include <sys/stat.h>
@ -199,7 +211,7 @@ if(CMAKE_C_COMPILER_IS_GCC_COMPATIBLE)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wlogical-op-parentheses")
endif()
# Disable some warnings
# TODO: disable these warnings with GCC < 4.9
#set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wno-missing-braces -Wno-missing-field-initializers")
# Force PIC for GCC