2fd3b44697
There's no library to link against and the headers are in the system, so we can create a synthetic import library after verifying the compilation. Change-Id: I9baa32cfe06f2f48adf066d558aa69646143efd0 Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io> Reviewed-by: Qt CMake Build Bot
52 lines
1.6 KiB
CMake
52 lines
1.6 KiB
CMake
include(CheckCXXSourceCompiles)
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# No library linkage is necessary to use GLESv2 with Emscripten. The headers are also
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# system headers, so we don't need to search for them.
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if(EMSCRIPTEN)
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set(HAVE_GLESv2 ON)
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else()
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find_library(GLESv2_LIBRARY NAMES GLESv2)
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find_path(GLESv2_INCLUDE_DIR NAMES "GLES2/gl2.h" DOC "The OpenGLES 2 include path")
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set(_libraries "${CMAKE_REQUIRED_LIBRARIES}")
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list(APPEND CMAKE_REQUIRED_LIBRARIES "${GLESv2_LIBRARY}")
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set(_includes "${CMAKE_REQUIRED_INCLUDES}")
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list(APPEND CMAKE_REQUIRED_INCLUDES "${GLESv2_INCLUDE_DIR}")
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check_cxx_source_compiles("
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#ifdef __APPLE__
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# include <OpenGLES/ES2/gl.h>
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#else
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# define GL_GLEXT_PROTOTYPES
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# include <GLES2/gl2.h>
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#endif
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int main(int argc, char *argv[]) {
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glUniform1f(1, GLfloat(1.0));
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glClear(GL_COLOR_BUFFER_BIT);
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}" HAVE_GLESv2)
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set(CMAKE_REQUIRED_LIBRARY "${_libraries}")
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unset(_libraries)
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set(CMAKE_REQUIRED_INCLUDES "${_includes}")
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unset(_includes)
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set(package_args GLESv2_INCLUDE_DIR GLESv2_LIBRARY HAVE_GLESv2)
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endif()
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list(APPEND package_args HAVE_GLESv2)
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include(FindPackageHandleStandardArgs)
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find_package_handle_standard_args(GLESv2 DEFAULT_MSG ${package_args})
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mark_as_advanced(${package_args})
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if(GLESv2_FOUND AND NOT TARGET GLESv2::GLESv2)
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if(EMSCRIPTEN)
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add_library(GLESv2::GLESv2 INTERFACE IMPORTED)
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else()
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add_library(GLESv2::GLESv2 UNKNOWN IMPORTED)
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set_target_properties(GLESv2::GLESv2 PROPERTIES
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IMPORTED_LOCATION "${GLESv2_LIBRARY}"
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INTERFACE_INCLUDE_DIRECTORIES "${GLESv2_INCLUDE_DIR}")
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endif()
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endif()
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