Signed-off-by: Max Krummenacher <max.krummenac...@toradex.com>
---
...pass-cflags-to-the-appropriate-cmake.patch | 46 +++++++++++++++++++
.../libsdl2/libsdl2_2.0.18.bb | 1 +
2 files changed, 47 insertions(+)
create mode 100644
meta/recipes-graphics/libsdl2/libsdl2/0001-sdlchecks.cmake-pass-cflags-to-the-appropriate-cmake.patch
diff --git
a/meta/recipes-graphics/libsdl2/libsdl2/0001-sdlchecks.cmake-pass-cflags-to-the-appropriate-cmake.patch
b/meta/recipes-graphics/libsdl2/libsdl2/0001-sdlchecks.cmake-pass-cflags-to-the-appropriate-cmake.patch
new file mode 100644
index 0000000000..e5d6cda0eb
--- /dev/null
+++
b/meta/recipes-graphics/libsdl2/libsdl2/0001-sdlchecks.cmake-pass-cflags-to-the-appropriate-cmake.patch
@@ -0,0 +1,46 @@
+From dbf0a3f6ea77a1d5f5e3c4dec7a22fcc09a49537 Mon Sep 17 00:00:00 2001
+From: Max Krummenacher <max.krummenac...@toradex.com>
+Date: Mon, 10 Jan 2022 21:52:02 +0000
+Subject: [PATCH] cmake: sdlchecks.cmake: pass cflags to the appropriate cmake
+ variable
+
+If egl.pc sets at least two macros as the i.MX Vivante driver does, e.g.:
+| Cflags: -I${includedir} -DLINUX -DWL_EGL_PLATFORM
+
+then we get the following error during configuration:
+
+| -- Performing Test HAVE_OPENGL_EGL
+| CMake Error: Parse error in command line argument: WL_EGL_PLATFORM
+| Should be: VAR:type=value
+
+If one changes to add a value to the macro, e.g.
+| Cflags: -I${includedir} -DLINUX=1 -DWL_EGL_PLATFORM=1
+then cmake does not error out but the macro is not passed to the
+C compiler.
+
+CMAKE_REQUIRED_FLAGS is the wrong variable to pass the CFLAGS in,
+CMAKE_REQUIRED_DEFINITIONS should be used.
+
+Upstream-Status: Submitted [https://github.com/libsdl-org/SDL/pull/5209]
+Signed-off-by: Max Krummenacher <max.krummenac...@toradex.com>
+---
+ cmake/sdlchecks.cmake | 3 +--
+ 1 file changed, 1 insertion(+), 2 deletions(-)
+
+diff --git a/cmake/sdlchecks.cmake b/cmake/sdlchecks.cmake
+index 32be19c..f61b8df 100644
+--- a/cmake/sdlchecks.cmake
++++ b/cmake/sdlchecks.cmake
+@@ -808,8 +808,7 @@ endmacro()
+ macro(CheckEGL)
+ if (SDL_OPENGL OR SDL_OPENGLES)
+ pkg_check_modules(EGL egl)
+- string(REPLACE "-D_THREAD_SAFE;" "-D_THREAD_SAFE=1;" EGL_CFLAGS
"${EGL_CFLAGS}")
+- set(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} ${EGL_CFLAGS}")
++ set(CMAKE_REQUIRED_DEFINITIONS "${CMAKE_REQUIRED_DEFINITIONS}
${EGL_CFLAGS}")
+ check_c_source_compiles("
+ #define EGL_API_FB
+ #define MESA_EGL_NO_X11_HEADERS
+--
+2.20.1
+
diff --git a/meta/recipes-graphics/libsdl2/libsdl2_2.0.18.bb
b/meta/recipes-graphics/libsdl2/libsdl2_2.0.18.bb
index 1559d5e942..6c949d9604 100644
--- a/meta/recipes-graphics/libsdl2/libsdl2_2.0.18.bb
+++ b/meta/recipes-graphics/libsdl2/libsdl2_2.0.18.bb
@@ -19,6 +19,7 @@ PROVIDES = "virtual/libsdl2"
SRC_URI = "http://www.libsdl.org/release/SDL2-${PV}.tar.gz \
file://0001-Fix-build-against-wayland-1.20.patch \
file://optional-libunwind-generic.patch \
+
file://0001-sdlchecks.cmake-pass-cflags-to-the-appropriate-cmake.patch \
"
S = "${WORKDIR}/SDL2-${PV}"
--
2.20.1
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