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detect false failure of strerror_r

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See tikv/jemallocator#108.

In a summary, test on `strerror_r` can fail due to reasons other
than `strerror_r` itself, so add an additional test to determine
the failure is expected.

Signed-off-by: Jay Lee <BusyJayLee@gmail.com>
This commit is contained in:
Jay Lee 2025-02-07 14:12:38 +08:00 • committed by Qi Wang
parent e1a77ec558
commit a4defdb854
1 changed files with 10 additions and 0 deletions
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10
configure.ac
View file

@ -2835,9 +2835,19 @@ JE_COMPILABLE([strerror_r returns char with gnu source], [
char *error = strerror_r(EINVAL, buffer, 100);
printf("%s\n", error);
], [je_cv_strerror_r_returns_char_with_gnu_source])
if test "x${je_cv_strerror_r_returns_char_with_gnu_source}" = "xno" ; then
JE_COMPILABLE([strerror_r header only], [
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
], [], [je_cv_strerror_r_header_pass])
fi
JE_CFLAGS_RESTORE()
if test "x${je_cv_strerror_r_returns_char_with_gnu_source}" = "xyes" ; then
AC_DEFINE([JEMALLOC_STRERROR_R_RETURNS_CHAR_WITH_GNU_SOURCE], [ ], [ ])
elif test "x${je_cv_strerror_r_header_pass}" = "xno" ; then
AC_MSG_ERROR([cannot determine return type of strerror_r])
fi
dnl ============================================================================