Michael Davidsaver
44 lines
1.1 KiB
C
44 lines
1.1 KiB
C
#ifdef _COMMENT_
|
|
/* Compiler inspection
|
|
*
|
|
* expanded as configure/CONFIG_SITE.Common.*
|
|
*/
|
|
/* GCC preprocessor drops C comments from output.
|
|
* MSVC preprocessor emits C comments in output
|
|
*/
|
|
#endif
|
|
#define VERSION_INT(V,R,M,P) ( ((V)<<24) | ((R)<<16) | ((M)<<8) | (P))
|
|
|
|
CONFIG_LOADED=YES
|
|
|
|
#if __GNUC__
|
|
/* also true for clang */
|
|
GNUISH=YES
|
|
USR_CXXFLAGS += -std=c++11
|
|
#endif
|
|
|
|
#if __GNUC__ && !__clang__
|
|
#define GCC_VERSION VERSION_INT(__GNUC__, __GNUC_MINOR__, __GNUC_PATCHLEVEL__, 0)
|
|
|
|
/* LTO takes a nice chunk out of the .so text size, but blows up the .a size */
|
|
/* native mingw builds using the MS ar doesn't understand LTO */
|
|
#if !defined(_WIN32) && GCC_VERSION>=VERSION_INT(4,9,0,0)
|
|
OPT_CFLAGS_YES += -flto
|
|
OPT_CXXFLAGS_YES += -flto
|
|
USR_LDFLAGS += -flto
|
|
#endif
|
|
|
|
/* Compress debug information on ELF targets for ~25%-50% reduction in .so and .a file size
|
|
* (C++ debug info is Huuuge!)
|
|
*/
|
|
#if __ELF__ && GCC_VERSION>=VERSION_INT(5,0,0,0)
|
|
USR_CFLAGS += -gz=zlib
|
|
USR_CXXFLAGS += -gz=zlib
|
|
/* Actually a binutils feature, which we can't detect.
|
|
* Assume binutils upgrade follow gcc
|
|
*/
|
|
USR_LDFLAGS += -Wl,--compress-debug-sections=zlib
|
|
#endif
|
|
|
|
#endif /* __GNUC__ */
|