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mesa/dlopen: use HAVE_DLOPEN instead of _GNU_SOURCE

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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>
This commit is contained in:
Tapani Pälli 2012-08-16 13:59:12 +03:00 committed by Matt Turner
parent df4dccc7a9
commit 57c57df7b4
3 changed files with 10 additions and 7 deletions
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4
Android.common.mk
View File

@ -47,7 +47,9 @@ LOCAL_CFLAGS += \
ifeq ($(strip $(MESA_ENABLE_ASM)),true)
ifeq ($(TARGET_ARCH),x86)
LOCAL_CFLAGS += \
-DUSE_X86_ASM
-DUSE_X86_ASM \
-DHAVE_DLOPEN \
endif
endif

5
configure.ac
View File

@ -499,8 +499,9 @@ MESA_PIC_FLAGS
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

8
src/mesa/main/dlopen.c
View File

@ -31,7 +31,7 @@
#include "compiler.h"
#include "dlopen.h"
#if defined(_GNU_SOURCE) && !defined(__MINGW32__) && !defined(__blrts)
#if defined(HAVE_DLOPEN)
#include <dlfcn.h>
#endif
#if defined(_WIN32)
@ -48,7 +48,7 @@ _mesa_dlopen(const char *libname, int flags)
{
#if defined(__blrts)
return NULL;
#elif defined(_GNU_SOURCE)
#elif defined(HAVE_DLOPEN)
flags = RTLD_LAZY | RTLD_GLOBAL; /* Overriding flags at this time */
return dlopen(libname, flags);
#elif defined(__MINGW32__)
@ -80,7 +80,7 @@ _mesa_dlsym(void *handle, const char *fname)
strncpy(fname2 + 1, fname, 998);
fname2[999] = 0;
u.v = dlsym(handle, fname2);
#elif defined(_GNU_SOURCE)
#elif defined(HAVE_DLOPEN)
u.v = dlsym(handle, fname);
#elif defined(__MINGW32__)
u.v = (void *) GetProcAddress(handle, fname);
@ -99,7 +99,7 @@ _mesa_dlclose(void *handle)
{
#if defined(__blrts)
(void) handle;
#elif defined(_GNU_SOURCE)
#elif defined(HAVE_DLOPEN)
dlclose(handle);
#elif defined(__MINGW32__)
FreeLibrary(handle);