gitea/SDL3_fork
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

configuration updates for dlopen:

Browse Source 
- cmake, configure (CheckDLOPEN): --enable-sdl-dlopen is now history..
  detach the dl api discovery from SDL_LOADSO_DLOPEN functionality.
  define HAVE_DLOPEN. also define DYNAPI_NEEDS_DLOPEN (CheckDLOPEN is
  called only for relevant platforms.)
- update SDL_config.in and SDL_config.cmake accordingly.
- SDL_dynapi.h: set SDL_DYNAMIC_API to 0 if DYNAPI_NEEDS_DLOPEN is
  defined, but HAVE_DLOPEN is not.
- pthread/SDL_systhread.c: conditionalize dl api use to HAVE_DLOPEN
- SDL_x11opengl.c, SDL_DirectFB_opengl.c, SDL_naclopengles.c: rely
  on HAVE_DLOPEN, not SDL_LOADSO_DLOPEN.
- SDL_config_android.h, SDL_config_iphoneos.h, SDL_config_macosx.h,
  SDL_config_pandora.h, and SDL_config_wiz.h: define HAVE_DLOPEN.

Closes: https://github.com/libsdl-org/SDL/pull/4351
This commit is contained in:
Ozkan Sezer
2021-08-10 20:55:50 +03:00
committed by Sam Lantinga
parent cb0fd05eeb
commit 77c8d11137
17 changed files with 108 additions and 167 deletions
Download Patch File Download Diff File Expand all files Collapse all files

101
configure vendored
View File

@@ -902,7 +902,6 @@ enable_pthread_sem
enable_directx
enable_xinput
enable_wasapi
enable_sdl_dlopen
enable_hidapi
enable_hidapi_libusb
enable_clock_gettime
@@ -1696,7 +1695,6 @@ Optional Features:
--enable-directx use DirectX for Windows audio/video [default=yes]
--enable-xinput use Xinput for Windows [default=yes]
--enable-wasapi use the Windows WASAPI audio driver [default=yes]
--enable-sdl-dlopen use dlopen for shared object loading [default=yes]
--enable-hidapi use HIDAPI for low level joystick drivers
[default=yes]
--enable-hidapi-libusb use libusb for low level joystick drivers
@@ -24136,42 +24134,20 @@ fi
CheckDLOPEN()
{
# Check whether --enable-sdl-dlopen was given.
if test "${enable_sdl_dlopen+set}" = set; then :
enableval=$enable_sdl_dlopen;
$as_echo "#define DYNAPI_NEEDS_DLOPEN 1" >>confdefs.h
ac_fn_c_check_header_mongrel "$LINENO" "dlfcn.h" "ac_cv_header_dlfcn_h" "$ac_includes_default"
if test "x$ac_cv_header_dlfcn_h" = xyes; then :
have_dlfcn_h=yes
else
enable_sdl_dlopen=yes
have_dlfcn_h=no
fi
if test x$enable_sdl_dlopen = xyes; then
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for dlopen" >&5
$as_echo_n "checking for dlopen... " >&6; }
have_dlopen=no
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
#include <dlfcn.h>
int
main ()
{
void *handle = dlopen("", RTLD_NOW);
const char *loaderror = (char *) dlerror();
;
return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
have_dlopen=yes
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $have_dlopen" >&5
$as_echo "$have_dlopen" >&6; }
if test x$have_dlopen = xyes; then
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for dlopen in -lc" >&5
have_dlopen=no
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for dlopen in -lc" >&5
$as_echo_n "checking for dlopen in -lc... " >&6; }
if ${ac_cv_lib_c_dlopen+:} false; then :
$as_echo_n "(cached) " >&6
@@ -24208,7 +24184,7 @@ fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_c_dlopen" >&5
$as_echo "$ac_cv_lib_c_dlopen" >&6; }
if test "x$ac_cv_lib_c_dlopen" = xyes; then :
EXTRA_LDFLAGS="$EXTRA_LDFLAGS"
have_dlopen=yes
else
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for dlopen in -ldl" >&5
$as_echo_n "checking for dlopen in -ldl... " >&6; }
@@ -24247,58 +24223,25 @@ fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dl_dlopen" >&5
$as_echo "$ac_cv_lib_dl_dlopen" >&6; }
if test "x$ac_cv_lib_dl_dlopen" = xyes; then :
EXTRA_LDFLAGS="$EXTRA_LDFLAGS -ldl"
else
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for dlopen in -lltdl" >&5
$as_echo_n "checking for dlopen in -lltdl... " >&6; }
if ${ac_cv_lib_ltdl_dlopen+:} false; then :
$as_echo_n "(cached) " >&6
else
ac_check_lib_save_LIBS=$LIBS
LIBS="-lltdl $LIBS"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
/* Override any GCC internal prototype to avoid an error.
Use char because int might match the return type of a GCC
builtin and then its argument prototype would still apply. */
#ifdef __cplusplus
extern "C"
#endif
char dlopen ();
int
main ()
{
return dlopen ();
;
return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
ac_cv_lib_ltdl_dlopen=yes
else
ac_cv_lib_ltdl_dlopen=no
fi
rm -f core conftest.err conftest.$ac_objext \
conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_ltdl_dlopen" >&5
$as_echo "$ac_cv_lib_ltdl_dlopen" >&6; }
if test "x$ac_cv_lib_ltdl_dlopen" = xyes; then :
EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lltdl"
have_dlopen=yes; EXTRA_LDFLAGS="$EXTRA_LDFLAGS -ldl"
fi
fi
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for dlopen" >&5
$as_echo_n "checking for dlopen... " >&6; }
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $have_dlopen" >&5
$as_echo "$have_dlopen" >&6; }
if test x$have_dlfcn_h = xyes -a x$have_dlopen = xyes; then
$as_echo "#define HAVE_DLOPEN 1" >>confdefs.h
$as_echo "#define SDL_LOADSO_DLOPEN 1" >>confdefs.h
if test x$enable_loadso = xyes; then
$as_echo "#define SDL_LOADSO_DLOPEN 1" >>confdefs.h
SOURCES="$SOURCES $srcdir/src/loadso/dlopen/*.c"
have_loadso=yes
fi
SOURCES="$SOURCES $srcdir/src/loadso/dlopen/*.c"
have_loadso=yes
fi
fi
}