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INCLUDE(ExternalProject)
SET(prefix ${PROJECT_BINARY_DIR}/third_party/ft)
SET(LIB_POSTFIX "")
IF (${CMAKE_BUILD_TYPE} STREQUAL "Debug")
SET(LIB_POSTFIX "d")
ENDIF()
SET(freetype_location
${prefix}/lib/${CMAKE_STATIC_LIBRARY_PREFIX}freetype${LIB_POSTFIX}${CMAKE_STATIC_LIBRARY_SUFFIX})
IF(CMAKE_VERSION VERSION_LESS 3.2)
IF(CMAKE_GENERATOR MATCHES "Ninja")
MESSAGE(WARNING "Building freetype with Ninja has known issues with CMake older than 3.2")
endif()
SET(byproducts)
ELSE()
SET(byproducts BYPRODUCTS ${freetype_location})
ENDIF()
IF(UNIX)
SET(CXXFLAGS "${CMAKE_CXX_FLAGS} -w -fPIC")
SET(CFLAGS "${CMAKE_C_FLAGS} -w -fPIC")
ENDIF(UNIX)
ExternalProject_Add(
ft-ext
GIT_REPOSITORY http://git.sv.nongnu.org/r/freetype/freetype2.git
GIT_TAG VER-2-7-1
PREFIX "${prefix}"
INSTALL_DIR "${prefix}"
UPDATE_COMMAND ""
CONFIGURE_COMMAND ${CMAKE_COMMAND} -Wno-dev "-G${CMAKE_GENERATOR}" <SOURCE_DIR>
-DWITH_HarfBuzz=OFF
-DWITH_ZLIB=OFF
-DWITH_BZip2=OFF
-DWITH_PNG=OFF
-DCMAKE_CXX_COMPILER:FILEPATH=${CMAKE_CXX_COMPILER}
-DCMAKE_CXX_FLAGS:STRING=${CXXFLAGS}
-DCMAKE_C_COMPILER:FILEPATH=${CMAKE_C_COMPILER}
-DCMAKE_C_FLAGS:STRING=${CFLAGS}
-DCMAKE_BUILD_TYPE:STRING=${CMAKE_BUILD_TYPE}
-DCMAKE_INSTALL_PREFIX:PATH=<INSTALL_DIR>
${byproducts}
)
ADD_LIBRARY(freetype IMPORTED STATIC)
ExternalProject_Get_Property(ft-ext install_dir)
SET_TARGET_PROPERTIES(freetype PROPERTIES IMPORTED_LOCATION ${freetype_location})
ADD_DEPENDENCIES(freetype ft-ext)
# Based on the instructions on freetype site
# for header path inclusion given at below URL
# https://www.freetype.org/freetype2/docs/tutorial/step1.html#section-1
# we are including <root>/include/freetype2 as FREETYPE_INCLUDE_DIRS
SET(FREETYPE_INCLUDE_DIRS "${install_dir}/include/freetype2" CACHE INTERNAL "" FORCE)
SET(FREETYPE_LIBRARIES ${freetype_location} CACHE INTERNAL "" FORCE)
SET(FREETYPE_FOUND ON CACHE INTERNAL "" FORCE)
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