Allow PHP_CHECK_LIBRARY to use same function name in checks if a check fails.

diff --git a/acinclude.m4 b/acinclude.m4
index 8d67562e4295b84e809a31bff97875d1b6716dab..713ad190d8e276fe965a0edfbfd1da16ca02c25d 100644 (file)
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -1599,6 +1599,7 @@ AC_DEFUN([PHP_CHECK_LIBRARY], [
     $3
   ],[
     LDFLAGS=$save_old_LDFLAGS
+    unset ac_cv_func_$1
     $4
   ])dnl
 ])