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Installs a config module if CMake verion >= 2.8.12. The config-module creates the import library targets built in the project (glew, glew_s, glewmx, glewmx_s) but in accordance with the FindGLEW module shipped with CMake, it also creates GLEW::GLEW and GLEW::GLEWMX. GLEW::GLEW and GLEW::GLEWMX will be simply copies of glew/glewmx or glew_s/glewmx_s. If both versions are available they alias the shared versions. The default behaviour can be changed either when installing or when using the package: - Set BUILD_SHARED_LIBS to OFF or ON when building and installing GLEW. This controls which libraries (shared or static) will be installed (and not which will be built). - Set GLEW_USE_STATIC_LIBS to OFF or ON before calling `find_package(GLEW CONFIG REQUIRED)` to force the config-module to create GLEW::GLEW and GLEWMX as aliases to glew/glewmx or glew_s/glewmx_s The script ./cmake-testbuild.sh is added to test the CMake build and config-module. See instructions there.
47 lines
1.7 KiB
CMake
47 lines
1.7 KiB
CMake
# This config-module creates the following import libraries:
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#
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# - GLEW::glew and GLEW::glewmx shared libs
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# - GLEW::glew_s and GLEW::glewmx_s static libs
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#
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# Additionally GLEW::GLEW and GLEW::GLEWMX will be created as an
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# copy of either the shared (default) or the static libs.
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#
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# Dependending on the setting of BUILD_SHARED_LIBS at GLEW build time
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# either the static or shared versions may not be available.
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#
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# Set GLEW_USE_STATIC_LIBS to OFF or ON to force using the shared
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# or static libs for GLEW::GLEW and GLEW::GLEWMX
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#
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include(${CMAKE_CURRENT_LIST_DIR}/glew-targets.cmake)
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include(${CMAKE_CURRENT_LIST_DIR}/CopyImportedTargetProperties.cmake)
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# decide which import library (glew/glew_s and glewmx/glewmx_s)
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# needs to be copied to GLEW::GLEW and GLEW::GLEWMX
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set(_glew_target_postfix "")
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set(_glew_target_type SHARED)
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if(DEFINED GLEW_USE_STATIC_LIBS)
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# if defined, use only static or shared
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if(GLEW_USE_STATIC_LIBS)
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set(_glew_target_postfix "_s")
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endif()
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# else use static only if no shared
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elseif(NOT TARGET GLEW::glew AND TARGET GLEW::glew_s)
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set(_glew_target_postfix "_s")
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endif()
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if(_glew_target_postfix STREQUAL "")
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set(_glew_target_type SHARED)
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else()
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set(_glew_target_type STATIC)
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endif()
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# CMake doesn't allow creating ALIAS lib for an IMPORTED lib
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# so create imported ones and copy the properties
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foreach(_glew_target glew glewmx)
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set(_glew_src_target "GLEW::${_glew_target}${_glew_target_postfix}")
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string(TOUPPER "GLEW::${_glew_target}" _glew_dest_target)
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add_library(${_glew_dest_target} ${_glew_target_type} IMPORTED)
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# message(STATUS "add_library(${_glew_dest_target} ${_glew_target_type} IMPORTED)")
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copy_imported_target_properties(${_glew_src_target} ${_glew_dest_target})
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endforeach()
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