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buffer: detect compilers not supporting __VA_ARGS__

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This commit is contained in:
Aris Adamantiadis
2015-02-08 18:49:02 +01:00
parent d3f30da158
commit a653e27a2e
2 changed files with 13 additions and 0 deletions
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12
ConfigureChecks.cmake
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@ -203,6 +203,18 @@ int main(void)
return 0;
}" HAVE_GCC_VOLATILE_MEMORY_PROTECTION)
check_c_source_compiles("
#include <stdio.h>
#define __VA_NARG__(...) (__VA_NARG_(_0, ## __VA_ARGS__, __RSEQ_N()) - 1)
#define __VA_NARG_(...) __VA_ARG_N(__VA_ARGS__)
#define __VA_ARG_N( _1, _2, _3, _4, _5, _6, _7, _8, _9,_10,N,...) N
#define __RSEQ_N() 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0
#define myprintf(format, ...) printf((format), __VA_NARG__(__VA_ARGS__), __VA_ARGS__)
int main(void) {
myprintf(\"%d %d %d %d\",1,2,3);
return 0;
}" HAVE_GCC_NARG_MACRO)
if (WITH_DEBUG_CRYPTO)
set(DEBUG_CRYPTO 1)
endif (WITH_DEBUG_CRYPTO)