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gnu.cfg: Add support for macro __extension__ 

The macro does nothing except preventing from warnings when compiling
with "pedantic" or other options.
This commit is contained in:
versat 2019-09-19 12:27:21 +02:00
parent 174badf242
commit 7277fe5a2b
2 changed files with 4 additions and 0 deletions
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1
cfg/gnu.cfg
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@ -46,6 +46,7 @@
<define name="__builtin_nanf(str)" value="nanf(str)"/>
<define name="__builtin_nanl(str)" value="nanl(str)"/>
<define name="__builtin_signbit(value)" value="signbit(value)"/>
<define name="__extension__" value=""/>
<!-- void *__builtin_alloca (size_t size) -->
<!-- alloca() is often defined as __builtin_alloca() so the define above does not work always -->
<!-- void *alloca(size_t size); -->

3
test/cfg/gnu.c
View File

@ -137,6 +137,9 @@ void valid_code(int argInt1, va_list valist_arg)
if (vasprintf(&pStr, "%d %d", valist_arg) != -1) {
free(pStr);
}
printf("%d", 0b010);
printf("%d", __extension__ 0b10001000);
}
void ignoreleak(void)