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Add compile flags and test for compiler options only if we use gcc.

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This commit is contained in:
Andreas Schneider
2009-07-21 11:14:54 +02:00
parent 1a6038baa5
commit ef2c8d66f1
1 changed files with 41 additions and 42 deletions
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83
cmake/Modules/DefineCompilerFlags.cmake
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@ -3,49 +3,48 @@
include(CheckCCompilerFlag) include(CheckCCompilerFlag)
if (UNIX AND NOT WIN32) if (UNIX AND NOT WIN32)
# with -fPIC
check_c_compiler_flag("-fPIC" WITH_FPIC)
if (WITH_FPIC)
add_definitions(-fPIC)
endif (WITH_FPIC)
if (CMAKE_SIZEOF_VOID_P MATCHES "8")
# with large file support
execute_process(
COMMAND
getconf LFS64_CFLAGS
OUTPUT_VARIABLE
_lfs_CFLAGS
ERROR_QUIET
OUTPUT_STRIP_TRAILING_WHITESPACE
)
else (CMAKE_SIZEOF_VOID_P MATCHES "8")
# with large file support
execute_process(
COMMAND
getconf LFS_CFLAGS
OUTPUT_VARIABLE
_lfs_CFLAGS
ERROR_QUIET
OUTPUT_STRIP_TRAILING_WHITESPACE
)
string(REGEX REPLACE "[\r\n]" " " "${_lfs_CFLAGS}" "${${_lfs_CFLAGS}}")
add_definitions(${_lfs_CFLAGS})
endif (CMAKE_SIZEOF_VOID_P MATCHES "8")
if (CMAKE_COMPILER_IS_GNUCC) if (CMAKE_COMPILER_IS_GNUCC)
add_definitions(-Wall -Wextra -Wmissing-prototypes -Wdeclaration-after-statement -Wunused) add_definitions(-Wall -Wextra -Wmissing-prototypes -Wdeclaration-after-statement -Wunused)
# with -fPIC
check_c_compiler_flag("-fPIC" WITH_FPIC)
if (WITH_FPIC)
add_definitions(-fPIC)
endif (WITH_FPIC)
if (CMAKE_SIZEOF_VOID_P MATCHES "8")
# with large file support
execute_process(
COMMAND
getconf LFS64_CFLAGS
OUTPUT_VARIABLE
_lfs_CFLAGS
ERROR_QUIET
OUTPUT_STRIP_TRAILING_WHITESPACE
)
else (CMAKE_SIZEOF_VOID_P MATCHES "8")
# with large file support
execute_process(
COMMAND
getconf LFS_CFLAGS
OUTPUT_VARIABLE
_lfs_CFLAGS
ERROR_QUIET
OUTPUT_STRIP_TRAILING_WHITESPACE
)
string(REGEX REPLACE "[\r\n]" " " "${_lfs_CFLAGS}" "${${_lfs_CFLAGS}}")
add_definitions(${_lfs_CFLAGS})
endif (CMAKE_SIZEOF_VOID_P MATCHES "8")
check_c_compiler_flag("-fstack-protector" WITH_STACK_PROTECTOR)
if (WITH_STACK_PROTECTOR)
add_definitions(-fstack-protector)
endif (WITH_STACK_PROTECTOR)
check_c_compiler_flag("-D_FORTIFY_SOURCE=2" WITH_FORTIFY_SOURCE)
if (WITH_FORTIFY_SOURCE)
add_definitions(-D_FORTIFY_SOURCE=2)
endif (WITH_FORTIFY_SOURCE)
endif (CMAKE_COMPILER_IS_GNUCC) endif (CMAKE_COMPILER_IS_GNUCC)
check_c_compiler_flag("-fstack-protector" WITH_STACK_PROTECTOR)
if (WITH_STACK_PROTECTOR)
add_definitions(-fstack-protector)
endif (WITH_STACK_PROTECTOR)
check_c_compiler_flag("-D_FORTIFY_SOURCE=2" WITH_FORTIFY_SOURCE)
if (WITH_FORTIFY_SOURCE)
add_definitions(-D_FORTIFY_SOURCE=2)
endif (WITH_FORTIFY_SOURCE)
endif (UNIX AND NOT WIN32) endif (UNIX AND NOT WIN32)