[Buildroot] [PATCH v2 1/1] package/solarus: Fix OpenGLES2 build

[Yann E. MORIN]

Gleb, All,

On 2021-01-04 18:12 +0000, Gleb Mazovetskiy spake thusly:
> 1. Adds a patch that fixes OpenGLES2 build
>    https://gitlab.com/solarus-games/solarus/-/merge_requests/1364

This has been lerged upstream, now.

> 2. Updates Config.in and solarus.mk to support OpenGLES2
> 
> Signed-off-by: Gleb Mazovetskiy <glex.spb at gmail.com>

Applied to master, thanks.

Regards,
Yann E. MORIN.

> ---
>  ...0001-Add-a-basic-FindOpenGLES2.cmake.patch | 48 +++++++++++++++++++
>  package/solarus/Config.in                     |  2 +-
>  package/solarus/solarus.mk                    |  9 +++-
>  3 files changed, 57 insertions(+), 2 deletions(-)
>  create mode 100644 package/solarus/0001-Add-a-basic-FindOpenGLES2.cmake.patch
> 
> diff --git a/package/solarus/0001-Add-a-basic-FindOpenGLES2.cmake.patch b/package/solarus/0001-Add-a-basic-FindOpenGLES2.cmake.patch
> new file mode 100644
> index 0000000000..59bf9e8cf4
> --- /dev/null
> +++ b/package/solarus/0001-Add-a-basic-FindOpenGLES2.cmake.patch
> @@ -0,0 +1,48 @@
> +From 2bf0e98f17d92fd86ee61be179e3cebe93f75ea7 Mon Sep 17 00:00:00 2001
> +From: Gleb Mazovetskiy <glex.spb at gmail.com>
> +Date: Sun, 3 Jan 2021 12:38:13 +0000
> +Subject: [PATCH] Add a basic FindOpenGLES2.cmake
> +
> +Fixes #1324
> +---
> + cmake/modules/FindOpenGLES2.cmake | 28 ++++++++++++++++++++++++++++
> + 1 file changed, 28 insertions(+)
> + create mode 100644 cmake/modules/FindOpenGLES2.cmake
> +
> +diff --git a/cmake/modules/FindOpenGLES2.cmake b/cmake/modules/FindOpenGLES2.cmake
> +new file mode 100644
> +index 000000000..70fd5e6f0
> +--- /dev/null
> ++++ b/cmake/modules/FindOpenGLES2.cmake
> +@@ -0,0 +1,28 @@
> ++# Try to find OpenGLES2. Once done this will define:
> ++#     OPENGLES2_FOUND
> ++#     OPENGLES2_INCLUDE_DIRS
> ++#     OPENGLES2_LIBRARIES
> ++#     OPENGLES2_DEFINITIONS
> ++
> ++find_package(PkgConfig QUIET)
> ++
> ++pkg_check_modules(PC_OPENGLES2 glesv2)
> ++
> ++if (PC_OPENGLES2_FOUND)
> ++    set(OPENGLES2_DEFINITIONS ${PC_OPENGLES2_CFLAGS_OTHER})
> ++endif ()
> ++
> ++find_path(OPENGLES2_INCLUDE_DIRS NAMES GLES2/gl2.h
> ++    HINTS ${PC_OPENGLES2_INCLUDEDIR} ${PC_OPENGLES2_INCLUDE_DIRS}
> ++)
> ++
> ++set(OPENGLES2_NAMES ${OPENGLES2_NAMES} glesv2 GLESv2)
> ++find_library(OPENGLES2_LIBRARIES NAMES ${OPENGLES2_NAMES}
> ++    HINTS ${PC_OPENGLES2_LIBDIR} ${PC_OPENGLES2_LIBRARY_DIRS}
> ++)
> ++
> ++include(FindPackageHandleStandardArgs)
> ++find_package_handle_standard_args(OpenGLES2 REQUIRED_VARS OPENGLES2_INCLUDE_DIRS OPENGLES2_LIBRARIES
> ++                                  FOUND_VAR OPENGLES2_FOUND)
> ++
> ++mark_as_advanced(OPENGLES2_INCLUDE_DIRS OPENGLES2_LIBRARIES)
> +-- 
> +2.27.0
> +
> diff --git a/package/solarus/Config.in b/package/solarus/Config.in
> index b0f4121f6d..bcfa640890 100644
> --- a/package/solarus/Config.in
> +++ b/package/solarus/Config.in
> @@ -6,7 +6,7 @@ config BR2_PACKAGE_SOLARUS
>  	depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 # openal
>  	depends on BR2_TOOLCHAIN_HAS_THREADS_NPTL # openal
>  	depends on !BR2_STATIC_LIBS # SDL2
> -	depends on BR2_PACKAGE_HAS_LIBGL
> +	depends on BR2_PACKAGE_HAS_LIBGL || BR2_PACKAGE_HAS_LIBGLES
>  	select BR2_PACKAGE_GLM
>  	select BR2_PACKAGE_LIBMODPLUG
>  	select BR2_PACKAGE_LIBOGG
> diff --git a/package/solarus/solarus.mk b/package/solarus/solarus.mk
> index 92e849ef02..c759d1c2ea 100644
> --- a/package/solarus/solarus.mk
> +++ b/package/solarus/solarus.mk
> @@ -16,7 +16,7 @@ SOLARUS_LICENSE_FILES = license.txt
>  # Install libsolarus.so
>  SOLARUS_INSTALL_STAGING = YES
>  
> -SOLARUS_DEPENDENCIES = glm libgl libmodplug libogg libvorbis openal physfs \
> +SOLARUS_DEPENDENCIES = glm libmodplug libogg libvorbis openal physfs \
>  	sdl2 sdl2_image sdl2_ttf
>  
>  # Disable launcher GUI (requires Qt5)
> @@ -24,6 +24,13 @@ SOLARUS_CONF_OPTS = \
>  	-DSOLARUS_GUI=OFF \
>  	-DSOLARUS_TESTS=OFF
>  
> +ifeq ($(BR2_PACKAGE_HAS_LIBGL),y)
> +SOLARUS_DEPENDENCIES += libgl
> +else
> +SOLARUS_CONF_OPTS += -DSOLARUS_GL_ES=ON
> +SOLARUS_DEPENDENCIES += libgles
> +endif
> +
>  ifeq ($(BR2_PACKAGE_LUAJIT),y)
>  SOLARUS_CONF_OPTS += -DSOLARUS_USE_LUAJIT=ON
>  SOLARUS_DEPENDENCIES += luajit
> -- 
> 2.27.0
> 
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