kc3-lang/SDL

diff --git a/configure b/configure
index cdb12bd..b815cf0 100755
--- a/configure
+++ b/configure
@@ -20111,8 +20111,34 @@ else
   $as_echo_n "(cached) " >&6
 else
   # One or both of the vars are not set, and there is no cached value.
-ac_x_includes=no ac_x_libraries=no
-rm -f -r conftest.dir
+ac_x_includes=no
+ac_x_libraries=no
+# Do we need to do anything special at all?
+ac_save_LIBS=$LIBS
+LIBS="-lX11 $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <X11/Xlib.h>
+int
+main ()
+{
+XrmInitialize ()
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  # We can compile and link X programs with no special options.
+  ac_x_includes=
+  ac_x_libraries=
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS="$ac_save_LIBS"
+# If that didn't work, only try xmkmf and filesystem searches
+# for native compilation.
+if test x"$ac_x_includes" = xno && test "$cross_compiling" = no; then :
+  rm -f -r conftest.dir
 if mkdir conftest.dir; then
   cd conftest.dir
   cat >Imakefile <<'_ACEOF'
@@ -20151,7 +20177,7 @@ _ACEOF
   rm -f -r conftest.dir
 fi
 
-# Standard set of common directories for X headers.
+  # Standard set of common directories for X headers.
 # Check X11 before X11Rn because it is often a symlink to the current release.
 ac_x_header_dirs='
 /usr/X11/include
@@ -20253,15 +20279,17 @@ rm -f core conftest.err conftest.$ac_objext \
     conftest$ac_exeext conftest.$ac_ext
 fi # $ac_x_libraries = no
 
+fi
+# Record the results.
 case $ac_x_includes,$ac_x_libraries in #(
-  no,* | *,no | *\'*)
+  no,* | *,no | *\'*) :
     # Didn't find X, or a directory has "'" in its name.
-    ac_cv_have_x="have_x=no";; #(
-  *)
+    ac_cv_have_x="have_x=no" ;; #(
+  *) :
     # Record where we found X for the cache.
     ac_cv_have_x="have_x=yes\
 	ac_x_includes='$ac_x_includes'\
-	ac_x_libraries='$ac_x_libraries'"
+	ac_x_libraries='$ac_x_libraries'" ;;
 esac
 fi
 ;; #(
@@ -21962,7 +21990,10 @@ else
 fi
 
 
-    if test x$enable_video = xyes -a x$enable_video_kmsdrm = xyes; then
+    if  test x$enable_video = xyes && \
+        test x$enable_video_kmsdrm = xyes && \
+        test x$video_opengl_egl = xyes; then
+
         video_kmsdrm=no
 
 
@@ -22400,6 +22431,45 @@ $as_echo "#define SDL_VIDEO_RENDER_OGL_ES2 1" >>confdefs.h
     fi
 }
 
+CheckEGLKMSDRM()
+{
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for EGL support" >&5
+$as_echo_n "checking for EGL support... " >&6; }
+    video_opengl_egl=no
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+      #define LINUX
+      #define EGL_API_FB
+      #define MESA_EGL_NO_X11_HEADERS
+      #define EGL_NO_X11
+      #include <EGL/egl.h>
+      #include <EGL/eglext.h>
+
+int
+main ()
+{
+
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+
+    video_opengl_egl=yes
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $video_opengl_egl" >&5
+$as_echo "$video_opengl_egl" >&6; }
+    if test x$video_opengl_egl = xyes; then
+
+$as_echo "#define SDL_VIDEO_OPENGL_EGL 1" >>confdefs.h
+
+    fi
+}
+
 CheckWINDOWSGL()
 {
     if test x$enable_video = xyes -a x$enable_video_opengl = xyes; then
@@ -24751,6 +24821,8 @@ $as_echo "#define SDL_VIDEO_DRIVER_ANDROID 1" >>confdefs.h
         CheckRPI
         CheckX11
         CheckDirectFB
+        # Need to check for EGL first because KMSDRM depends on it.
+        CheckEGLKMSDRM
         CheckKMSDRM
         CheckOpenGLX11
         CheckOpenGLESX11