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authorCharles-François Natali <neologix@free.fr>2011-11-27 11:41:06 (GMT)
committerCharles-François Natali <neologix@free.fr>2011-11-27 11:41:06 (GMT)
commit6613c18ea2b1e8f4ede20313265c10bcdfebb5be (patch)
treeada703b7ec06b9fec6c8c5d55852288be5009390 /configure.in
parent6d47db31f0d5fe5e9b38c3f02cd436f110ea8b52 (diff)
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Issue #13415: Test in configure if unsetenv() has a return value or not.
Diffstat (limited to 'configure.in')
-rw-r--r--configure.in9
1 files changed, 9 insertions, 0 deletions
diff --git a/configure.in b/configure.in
index 1bbb559..81de0d4 100644
--- a/configure.in
+++ b/configure.in
@@ -2696,6 +2696,15 @@ AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
[AC_MSG_RESULT(no)
])
+AC_MSG_CHECKING(for broken unsetenv)
+AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
+#include <stdlib.h>
+]], [[int res = unsetenv("DUMMY")]])],
+ [AC_MSG_RESULT(no)],
+ [AC_DEFINE(HAVE_BROKEN_UNSETENV, 1, Define if `unsetenv` does not return an int.)
+ AC_MSG_RESULT(yes)
+])
+
dnl check for true
AC_CHECK_PROGS(TRUE, true, /bin/true)