Before this change, when imxgpu2d is selected, the qt4 do_configure
fails with the following error:

| EGL (EGL/egl.h) auto-detection... ()
| compiling egl.cpp
...
| /home/wrk/yocto/build-qt4/tmp/work/imx8mmevk-fslc-linux/qt4-embedded/4.8.7-r0/recipe-sysroot/usr/include/EGL/eglplatform.h:150:10: fatal error: X11/Xlib.h: No such file or directory
|   150 | #include <X11/Xlib.h>
|       |          ^~~~~~~~~~~~
| compilation terminated.
| Makefile:178: recipe for target 'egl.o' failed
| make: *** [egl.o] Error 1
| EGL (EGL/egl.h) disabled.
| EGL (GLES/egl.h) auto-detection... ()
...
| /home/wrk/yocto/build-qt4/tmp/work/imx8mmevk-fslc-linux/qt4-embedded/4.8.7-r0/recipe-sysroot/usr/include/EGL/eglplatform.h:150:10: fatal error: X11/Xlib.h: No such file or directory
|   150 | #include <X11/Xlib.h>
|       |          ^~~~~~~~~~~~
| compilation terminated.
| Makefile:178: recipe for target 'egl4gles1.o' failed
| make: *** [egl4gles1.o] Error 1
| EGL (GLES/egl.h) disabled.
| The EGL functionality test failed!

This is because the -DLINUX=1 and -DEGL_API_FB=1 flags added to QT_CONFIG_FLAGS
are not pushed down during these configuration tests.

This commit adds these two flags directly to the related .pro files
in Qt4 sources.

Since it's been a long time that meta-qt4 is not updated anymore,
the patch can be backported to LTS releases.

Signed-off-by: Mauro Salvini <m.salvini@...>
---
 .../qt4-layer/recipes-qt4/qt4/qt4-imx-support.inc        | 2 ++
 .../qt4/egl-pro-add-defines-to-compile-with-viv-fb.patch | 9 +++++++++
 ...gl4gles1-pro-add-defines-to-compile-with-viv-fb.patch | 9 +++++++++
 3 files changed, 20 insertions(+)
 create mode 100644 dynamic-layers/qt4-layer/recipes-qt4/qt4/qt4/egl-pro-add-defines-to-compile-with-viv-fb.patch
 create mode 100644 dynamic-layers/qt4-layer/recipes-qt4/qt4/qt4/egl4gles1-pro-add-defines-to-compile-with-viv-fb.patch

diff --git a/dynamic-layers/qt4-layer/recipes-qt4/qt4/qt4-imx-support.inc b/dynamic-layers/qt4-layer/recipes-qt4/qt4/qt4-imx-support.inc
index 03e09e57..ac009a3a 100644
--- a/dynamic-layers/qt4-layer/recipes-qt4/qt4/qt4-imx-support.inc
+++ b/dynamic-layers/qt4-layer/recipes-qt4/qt4/qt4-imx-support.inc
@@ -12,6 +12,8 @@ SRC_URI:append:imxgpu2d += " \
        file://0001-Add-support-for-i.MX-codecs-to-phonon.patch \
        file://0002-i.MX-video-renderer-Allow-v4l-device-from-environmen.patch \
        file://0003-i.MX6-force-egl-visual-ID-33.patch \
+       file://egl-pro-add-defines-to-compile-with-viv-fb.patch \
+       file://egl4gles1-pro-add-defines-to-compile-with-viv-fb.patch \
 "

 DEPENDS:append:imxgpu2d = " virtual/kernel virtual/libgles2"
diff --git a/dynamic-layers/qt4-layer/recipes-qt4/qt4/qt4/egl-pro-add-defines-to-compile-with-viv-fb.patch b/dynamic-layers/qt4-layer/recipes-qt4/qt4/qt4/egl-pro-add-defines-to-compile-with-viv-fb.patch
new file mode 100644
index 00000000..e512fd47
--- /dev/null
+++ b/dynamic-layers/qt4-layer/recipes-qt4/qt4/qt4/egl-pro-add-defines-to-compile-with-viv-fb.patch
@@ -0,0 +1,9 @@
+--- a/config.tests/unix/egl/egl.pro    2015-05-07 16:14:42.000000000 +0200
++++ b/config.tests/unix/egl/egl.pro    2022-09-28 15:36:53.819893439 +0200
+@@ -6,5 +6,6 @@ for(p, QMAKE_LIBDIR_EGL) {
+
+ !isEmpty(QMAKE_INCDIR_EGL): INCLUDEPATH += $$QMAKE_INCDIR_EGL
+ !isEmpty(QMAKE_LIBS_EGL): LIBS += $$QMAKE_LIBS_EGL
++DEFINES += LINUX=1 EGL_API_FB=1
+
+ CONFIG -= qt
diff --git a/dynamic-layers/qt4-layer/recipes-qt4/qt4/qt4/egl4gles1-pro-add-defines-to-compile-with-viv-fb.patch b/dynamic-layers/qt4-layer/recipes-qt4/qt4/qt4/egl4gles1-pro-add-defines-to-compile-with-viv-fb.patch
new file mode 100644
index 00000000..61b40eb7
--- /dev/null
+++ b/dynamic-layers/qt4-layer/recipes-qt4/qt4/qt4/egl4gles1-pro-add-defines-to-compile-with-viv-fb.patch
@@ -0,0 +1,9 @@
+--- a/config.tests/unix/egl4gles1/egl4gles1.pro        2015-05-07 16:14:42.000000000 +0200
++++ b/config.tests/unix/egl4gles1/egl4gles1.pro        2022-09-28 15:36:53.827893490 +0200
+@@ -6,5 +6,6 @@ for(p, QMAKE_LIBDIR_EGL) {
+
+ !isEmpty(QMAKE_INCDIR_EGL): INCLUDEPATH += $$QMAKE_INCDIR_EGL
+ !isEmpty(QMAKE_LIBS_EGL): LIBS += $$QMAKE_LIBS_EGL
++DEFINES += LINUX=1 EGL_API_FB=1
+
+ CONFIG -= qt
--
2.17.1