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putenv: fix heap corruption with mixed putenv/_putenv
[gnulib.git]
/
m4
/
putenv.m4
diff --git
a/m4/putenv.m4
b/m4/putenv.m4
index
9de5352
..
03ed4f9
100644
(file)
--- a/
m4/putenv.m4
+++ b/
m4/putenv.m4
@@
-48,3
+48,9
@@
AC_DEFUN([gl_FUNC_PUTENV],
;;
esac
])
+
+# Prerequisites of lib/putenv.c.
+AC_DEFUN([gl_PREREQ_PUTENV],
+[
+ AC_CHECK_FUNCS([_putenv])
+])