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# This config-module creates the following import libraries:
#
# - GLEW::glew shared lib
# - GLEW::glew_s static lib
#
# Additionally GLEW::GLEW will be created as an
# copy of either the shared (default) or the static libs.
#
# Dependending on the setting of BUILD_SHARED_LIBS at GLEW build time
# either the static or shared versions may not be available.
#
# Set GLEW_USE_STATIC_LIBS to OFF or ON to force using the shared
# or static lib for GLEW::GLEW
#
include(${CMAKE_CURRENT_LIST_DIR}/glew-targets.cmake)
include(${CMAKE_CURRENT_LIST_DIR}/CopyImportedTargetProperties.cmake)
# decide which import library (glew/glew_s)
# needs to be copied to GLEW::GLEW
set(_glew_target_postfix "")
set(_glew_target_type SHARED)
if(DEFINED GLEW_USE_STATIC_LIBS)
# if defined, use only static or shared
if(GLEW_USE_STATIC_LIBS)
set(_glew_target_postfix "_s")
endif()
# else use static only if no shared
elseif(NOT TARGET GLEW::glew AND TARGET GLEW::glew_s)
set(_glew_target_postfix "_s")
endif()
if(_glew_target_postfix STREQUAL "")
set(_glew_target_type SHARED)
else()
set(_glew_target_type STATIC)
endif()
# CMake doesn't allow creating ALIAS lib for an IMPORTED lib
# so create imported ones and copy the properties
foreach(_glew_target glew)
set(_glew_src_target "GLEW::${_glew_target}${_glew_target_postfix}")
string(TOUPPER "GLEW::${_glew_target}" _glew_dest_target)
if(TARGET ${_glew_dest_target})
get_target_property(_glew_previous_src_target ${_glew_dest_target}
_GLEW_SRC_TARGET)
if(NOT _glew_previous_src_target STREQUAL _glew_src_target)
message(FATAL_ERROR "find_package(GLEW) was called the second time with "
"different GLEW_USE_STATIC_LIBS setting. Previously, "
"`glew-config.cmake` created ${_glew_dest_target} as a copy of "
"${_glew_previous_src_target}. Now it attempted to copy it from "
"${_glew_src_target}. ")
endif()
else()
add_library(${_glew_dest_target} ${_glew_target_type} IMPORTED)
# message(STATUS "add_library(${_glew_dest_target} ${_glew_target_type} IMPORTED)")
copy_imported_target_properties(${_glew_src_target} ${_glew_dest_target})
set_target_properties(${_glew_dest_target} PROPERTIES
_GLEW_SRC_TARGET ${_glew_src_target})
endif()
endforeach()
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