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Remove a workaround for an older version of GCC.

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GLIBC's byte swap functions are a good fallback option.
This commit is contained in:
Tsuda Kageyu
2015-08-07 08:59:16 +09:00
parent edbafdbd88
commit 80441ff754
3 changed files with 7 additions and 23 deletions
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18
ConfigureChecks.cmake
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@ -107,30 +107,16 @@ endif()
# Determine which kind of byte swap functions your compiler supports.
# GCC's __builtin_bswap* should be checked individually
# because some of them can be missing depends on the GCC version.
check_cxx_source_compiles("
int main() {
__builtin_bswap16(0);
return 0;
}
" HAVE_GCC_BYTESWAP_16)
check_cxx_source_compiles("
int main() {
__builtin_bswap32(0);
return 0;
}
" HAVE_GCC_BYTESWAP_32)
check_cxx_source_compiles("
int main() {
__builtin_bswap64(0);
return 0;
}
" HAVE_GCC_BYTESWAP_64)
" HAVE_GCC_BYTESWAP)
if(NOT HAVE_GCC_BYTESWAP_16 OR NOT HAVE_GCC_BYTESWAP_32 OR NOT HAVE_GCC_BYTESWAP_64)
if(NOT HAVE_GCC_BYTESWAP)
check_cxx_source_compiles("
#include <byteswap.h>
int main() {