mesa/dlopen: use HAVE_DLOPEN instead of _GNU_SOURCE
Patches changes mesa to use 'HAVE_DLOPEN' defined by configure and Android.mk
instead of _GNU_SOURCE for detecting dlopen capability. This makes dlopen to
work also on Android where _GNU_SOURCE is not defined.
[mattst88] v2: HAVE_DLOPEN is sufficient for including dlfcn.h, remove
mingw/blrts checks around dlfcn.h inclusion.
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Signed-off-by: Tapani Pälli <tapani.palli@intel.com>
diff --git a/configure.ac b/configure.ac
index ad20c87..9bf4e1e 100644
--- a/configure.ac
+++ b/configure.ac
@@ -499,8 +499,9 @@
dnl Check to see if dlopen is in default libraries (like Solaris, which
dnl has it in libc), or if libdl is needed to get it.
-AC_CHECK_FUNC([dlopen], [],
- [AC_CHECK_LIB([dl], [dlopen], [DLOPEN_LIBS="-ldl"])])
+AC_CHECK_FUNC([dlopen], [DEFINES="$DEFINES -DHAVE_DLOPEN"],
+ [AC_CHECK_LIB([dl], [dlopen],
+ [DEFINES="$DEFINES -DHAVE_DLOPEN"; DLOPEN_LIBS="-ldl"])])
AC_SUBST([DLOPEN_LIBS])
dnl See if posix_memalign is available