fix LD_WRAP test in configure

The LD_WRAP test in configure was broken, and failed to
indicate LD_WRAP support correctly, resulting in some unit
tests failing to run.

(cherry picked from commit cfa4ea64bc06685f210a4187dcc05cc0aac84851)

diff --git a/configure.ac b/configure.ac
index 296824f98b32733056e1d185c40570480b81577b..1201b5e2a799ca235757b949a045122347288e2d 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -2246,11 +2246,11 @@ AC_SUBST([UNITTESTS])
 LD_WRAP_TESTS=false
 AC_MSG_CHECKING([for linker support for --wrap option])
 AX_SAVE_FLAGS([wrap])
-LDFLAGS="-Wl,-wrap,exit"
-AC_LINK_IFELSE(
+LDFLAGS="-Wl,--wrap,exit"
+AC_RUN_IFELSE(
     [AC_LANG_PROGRAM([[#include <stdlib.h>
                       void __real_exit (int status);
-                      void __wrap_exit (int status) { __real_exit (status); }
+                      void __wrap_exit (int status) { __real_exit (0); }
                      ]],
                     [[exit (1);]])],
     [LD_WRAP_TESTS=true