How do I tell waf to fail on warnings?
I'm trying to use this to detect which API I'm getting.
STRERROR_FRAG = """
#include <string.h>
int main(void) {
char buf [100];
const char *foo = strerror_r(6, buf, sizeof(buf));
return foo == NULL;
}
"""
ctx.check_cc(
fragment=STRERROR_FRAG,
define_name="STRERROR_CHAR",
features="c",
msg="Checking if strerror_r returns char*",
mandatory=False,
comment="Whether strerror_r returns char*"
)
Unfortunately, it gives a warning rather than an error so it looks like it
works.
../../test.c:5:21: warning: initialization makes pointer from integer without a
c
ast [-Wint-conversion]
const char *foo = strerror_r(6, buf, sizeof(buf));
How to I tell waf to fail on warnings?
Plan B would be to run the test code and see if the answer is NULL.
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