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detect false failure of strerror_r #4

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merged 1 commit into from
Feb 8, 2025
Merged

detect false failure of strerror_r #4

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10 changes: 10 additions & 0 deletions configure.ac
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Original file line number Diff line number Diff line change
Expand Up @@ -2497,9 +2497,19 @@ 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 ============================================================================
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