[PATCH lib/libX11] Fix config check for loadable modules

[Jon TURNEY]

The config check of the results of testing for dlcfn.h or dl.h just tests the
value of the ac_cv_ variables, which will be 'yes' or 'no', rather than checking
it is 'yes', so loadable module support would always be detected.

This is neccessary for successful compilation for the MinGW target without the
optional dlfcn-win32 library.

Signed-off-by: Jon TURNEY <jon.turney at dronecode.org.uk>
---
 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/configure.ac b/configure.ac
index fe31799..6c3534e 100644
--- a/configure.ac
+++ b/configure.ac
@@ -177,7 +177,7 @@ else
 	AC_DEFINE(HAVE_DLOPEN,1,[Use dlopen to load shared libraries])
 	AC_CHECK_HEADERS([dlfcn.h])
 fi
-if test x$ac_cv_header_dlcfn_h -o x$ac_cv_header_dl_h; then
+if test "x$ac_cv_header_dlcfn_h" = xyes -o "x$ac_cv_header_dl_h" = xyes; then
 	HAVE_LOADABLE_MODULES=yes
 else
 	HAVE_LOADABLE_MODULES=no
-- 
1.7.9