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kumquat-buildroot/package/sdl2/0001-make-cross-compiler-friendly.patch
Guillermo A. Amaral 9f8a6fdf99 package/sdl2: Fix Raspberry Pi support for SDL2 
Tweak build system to play well with Buildroot.

Signed-off-by: Guillermo A. Amaral <g@maral.me>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
2018-01-18 22:13:34 +01:00

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From 4cbd2fbfcbfe94b5826907f59ee963c69860e522 Mon Sep 17 00:00:00 2001
From: "Guillermo A. Amaral" <g@maral.me>
Date: Thu, 18 Jan 2018 09:23:58 -0800
Subject: [PATCH] Make rpi video cross-compiler friendly.
* Stops using fixed path to find GLES/EGL libs.
* Tries pkg-config to locate bcm_host.
Signed-off-by: Guillermo A. Amaral <g@maral.me>
---
cmake/sdlchecks.cmake | 15 ++++++++++-----
configure | 48 ++++++++++++++++++++++++++++++++++++++++++++++--
configure.in | 8 ++++++--
src/video/SDL_egl.c | 12 ++++++------
4 files changed, 68 insertions(+), 15 deletions(-)
diff --git a/cmake/sdlchecks.cmake b/cmake/sdlchecks.cmake
index e2e89a2..fc715f1 100644
--- a/cmake/sdlchecks.cmake
+++ b/cmake/sdlchecks.cmake
@@ -1127,15 +1127,19 @@ endmacro()
# - n/a
macro(CheckRPI)
if(VIDEO_RPI)
- set(VIDEO_RPI_INCLUDE_DIRS "/opt/vc/include" "/opt/vc/include/interface/vcos/pthreads" "/opt/vc/include/interface/vmcs_host/linux/" )
- set(VIDEO_RPI_LIBRARY_DIRS "/opt/vc/lib" )
- set(VIDEO_RPI_LIBS bcm_host )
+ pkg_check_modules(VIDEO_RPI bcm_host brcmegl)
+ if (NOT VIDEO_RPI_FOUND)
+ set(VIDEO_RPI_INCLUDE_DIRS "/opt/vc/include" "/opt/vc/include/interface/vcos/pthreads" "/opt/vc/include/interface/vmcs_host/linux/" )
+ set(VIDEO_RPI_LIBRARY_DIRS "/opt/vc/lib" )
+ set(VIDEO_RPI_LIBRARIES bcm_host )
+ set(VIDEO_RPI_LDFLAGS "-Wl,-rpath,/opt/vc/lib")
+ endif()
listtostr(VIDEO_RPI_INCLUDE_DIRS VIDEO_RPI_INCLUDE_FLAGS "-I")
listtostr(VIDEO_RPI_LIBRARY_DIRS VIDEO_RPI_LIBRARY_FLAGS "-L")
set(ORIG_CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS}")
set(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} ${VIDEO_RPI_INCLUDE_FLAGS} ${VIDEO_RPI_LIBRARY_FLAGS}")
- set(CMAKE_REQUIRED_LIBRARIES "${VIDEO_RPI_LIBS}")
+ set(CMAKE_REQUIRED_LIBRARIES "${VIDEO_RPI_LIBRARIES}")
check_c_source_compiles("
#include <bcm_host.h>
int main(int argc, char **argv) {}" HAVE_VIDEO_RPI)
@@ -1147,8 +1151,9 @@ macro(CheckRPI)
set(SDL_VIDEO_DRIVER_RPI 1)
file(GLOB VIDEO_RPI_SOURCES ${SDL2_SOURCE_DIR}/src/video/raspberry/*.c)
set(SOURCE_FILES ${SOURCE_FILES} ${VIDEO_RPI_SOURCES})
- list(APPEND EXTRA_LIBS ${VIDEO_RPI_LIBS})
+ list(APPEND EXTRA_LIBS ${VIDEO_RPI_LIBRARIES})
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${VIDEO_RPI_INCLUDE_FLAGS} ${VIDEO_RPI_LIBRARY_FLAGS}")
+ list(APPEND EXTRA_LDFLAGS ${VIDEO_RPI_LDFLAGS})
endif(SDL_VIDEO AND HAVE_VIDEO_RPI)
endif(VIDEO_RPI)
endmacro(CheckRPI)
diff --git a/configure b/configure
index b622085..d42a22a 100755
--- a/configure
+++ b/configure
@@ -19485,12 +19485,56 @@ else
fi
if test x$enable_video = xyes -a x$enable_video_rpi = xyes; then
- if test x$ARCH = xnetbsd; then
+ # Extract the first word of "pkg-config", so it can be a program name with args.
+set dummy pkg-config; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_path_PKG_CONFIG+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ case $PKG_CONFIG in
+ [\\/]* | ?:[\\/]*)
+ ac_cv_path_PKG_CONFIG="$PKG_CONFIG" # Let the user override the test with a path.
+ ;;
+ *)
+ as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_path_PKG_CONFIG="$as_dir/$ac_word$ac_exec_ext"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+ done
+IFS=$as_save_IFS
+
+ test -z "$ac_cv_path_PKG_CONFIG" && ac_cv_path_PKG_CONFIG="no"
+ ;;
+esac
+fi
+PKG_CONFIG=$ac_cv_path_PKG_CONFIG
+if test -n "$PKG_CONFIG"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $PKG_CONFIG" >&5
+$as_echo "$PKG_CONFIG" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+ if test x$PKG_CONFIG != xno && $PKG_CONFIG --exists bcm_host; then
+ RPI_CFLAGS=`$PKG_CONFIG --cflags bcm_host brcmegl`
+ RPI_LDFLAGS=`$PKG_CONFIG --libs bcm_host brcmegl`
+ elif test x$ARCH = xnetbsd; then
RPI_CFLAGS="-I/usr/pkg/include -I/usr/pkg/include/interface/vcos/pthreads -I/usr/pkg/include/interface/vmcs_host/linux"
RPI_LDFLAGS="-Wl,-R/usr/pkg/lib -L/usr/pkg/lib -lbcm_host"
else
RPI_CFLAGS="-I/opt/vc/include -I/opt/vc/include/interface/vcos/pthreads -I/opt/vc/include/interface/vmcs_host/linux"
- RPI_LDFLAGS="-L/opt/vc/lib -lbcm_host"
+ RPI_LDFLAGS="-Wl,-rpath,/opt/vc/lib -L/opt/vc/lib -lbcm_host"
fi
# Save the original compiler flags and libraries
diff --git a/configure.in b/configure.in
index 5ac2130..450bf62 100644
--- a/configure.in
+++ b/configure.in
@@ -1563,12 +1563,16 @@ CheckRPI()
AC_HELP_STRING([--enable-video-rpi], [use Raspberry Pi video driver [[default=yes]]]),
, enable_video_rpi=yes)
if test x$enable_video = xyes -a x$enable_video_rpi = xyes; then
- if test x$ARCH = xnetbsd; then
+ AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
+ if test x$PKG_CONFIG != xno && $PKG_CONFIG --exists bcm_host; then
+ RPI_CFLAGS=`$PKG_CONFIG --cflags bcm_host brcmegl`
+ RPI_LDFLAGS=`$PKG_CONFIG --libs bcm_host brcmegl`
+ elif test x$ARCH = xnetbsd; then
RPI_CFLAGS="-I/usr/pkg/include -I/usr/pkg/include/interface/vcos/pthreads -I/usr/pkg/include/interface/vmcs_host/linux"
RPI_LDFLAGS="-Wl,-R/usr/pkg/lib -L/usr/pkg/lib -lbcm_host"
else
RPI_CFLAGS="-I/opt/vc/include -I/opt/vc/include/interface/vcos/pthreads -I/opt/vc/include/interface/vmcs_host/linux"
- RPI_LDFLAGS="-L/opt/vc/lib -lbcm_host"
+ RPI_LDFLAGS="-Wl,-rpath,/opt/vc/lib -L/opt/vc/lib -lbcm_host"
fi
# Save the original compiler flags and libraries
diff --git a/src/video/SDL_egl.c b/src/video/SDL_egl.c
index 9ccc2c3..23a7f2d 100644
--- a/src/video/SDL_egl.c
+++ b/src/video/SDL_egl.c
@@ -44,12 +44,12 @@
#if SDL_VIDEO_DRIVER_RPI
/* Raspbian places the OpenGL ES/EGL binaries in a non standard path */
-#define DEFAULT_EGL "/opt/vc/lib/libbrcmEGL.so"
-#define DEFAULT_OGL_ES2 "/opt/vc/lib/libbrcmGLESv2.so"
-#define ALT_EGL "/opt/vc/lib/libEGL.so"
-#define ALT_OGL_ES2 "/opt/vc/lib/libGLESv2.so"
-#define DEFAULT_OGL_ES_PVR "/opt/vc/lib/libGLES_CM.so"
-#define DEFAULT_OGL_ES "/opt/vc/lib/libGLESv1_CM.so"
+#define DEFAULT_EGL "libbrcmEGL.so"
+#define DEFAULT_OGL_ES2 "libbrcmGLESv2.so"
+#define ALT_EGL "libEGL.so"
+#define ALT_OGL_ES2 "libGLESv2.so"
+#define DEFAULT_OGL_ES_PVR "libGLES_CM.so"
+#define DEFAULT_OGL_ES "libGLESv1_CM.so"
#elif SDL_VIDEO_DRIVER_ANDROID || SDL_VIDEO_DRIVER_VIVANTE
/* Android */
--
2.13.6
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