detect false failure of strerror_r

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 <[email protected]>
tikv · Feb 8, 2025 · 09ad115 · 09ad115
1 parent d0e8e60
commit 09ad115
Showing 1 changed file with 10 additions and 0 deletions.
diff --git a/configure.ac b/configure.ac
@@ -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 ============================================================================