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CMake: Generate pkg-config files for all Windows builds #396

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CMake: Generate pkg-config files for all Windows builds #396

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d92ac10
CMake: Generate pkg-config files for all Windows builds
fanc999-1 Sep 30, 2021
1dc7cca
CMakeLists.txt: Fix stylelistic issues
fanc999-1 Feb 8, 2023
c3d2bdf
CMakeLists.txt: Improve pkg-config generating on Windows
fanc999-1 Feb 8, 2023
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57 changes: 37 additions & 20 deletions CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -939,23 +939,27 @@ endif()

# Create pkgconfig files.
# We use the same files like ./configure, so we have to set its vars.
# Only do this on Windows for Cygwin - the files don't make much sense
# outside of a UNIX look-alike.
if(NOT WIN32 OR CYGWIN OR MINGW)
set(prefix ${CMAKE_INSTALL_PREFIX})
set(exec_prefix ${CMAKE_INSTALL_PREFIX})
set(libdir ${CMAKE_INSTALL_FULL_LIBDIR})
set(includedir ${CMAKE_INSTALL_FULL_INCLUDEDIR})
set(LIBS "-lz -lm")
configure_file(${CMAKE_CURRENT_SOURCE_DIR}/libpng.pc.in
${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}.pc
@ONLY)
create_symlink(libpng.pc FILE ${PNGLIB_NAME}.pc)
configure_file(${CMAKE_CURRENT_SOURCE_DIR}/libpng-config.in
${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}-config
@ONLY)
create_symlink(libpng-config FILE ${PNGLIB_NAME}-config)
set(prefix ${CMAKE_INSTALL_PREFIX})
set(exec_prefix ${CMAKE_INSTALL_PREFIX})
set(libdir ${CMAKE_INSTALL_FULL_LIBDIR})
set(includedir ${CMAKE_INSTALL_FULL_INCLUDEDIR})
get_target_property(ZLIB_LIB ZLIB::ZLIB IMPORTED_LOCATION)
if("${ZLIB_LIB}" STREQUAL "ZLIB_LIB-NOTFOUND")
if(NOT "${CMAKE_BUILD_TYPE}" STREQUAL "")
string(TOUPPER ${CMAKE_BUILD_TYPE} ZLIB_CFG)
# Sadly, no IMPORTED_LOCATION_RELWITHDEBINFO property in ZLIB::ZLIB?
if("${ZLIB_CFG}" STREQUAL "RELWITHDEBINFO" OR
"${ZLIB_CFG}" STREQUAL "MINSIZEREL")
get_target_property(ZLIB_LIB ZLIB::ZLIB IMPORTED_LOCATION_RELEASE)
else()
get_target_property(ZLIB_LIB ZLIB::ZLIB IMPORTED_LOCATION_${ZLIB_CFG})
endif()
endif()
endif()
set(LIBS "${ZLIB_LIB} ${M_LIBRARY}")
configure_file(${CMAKE_CURRENT_SOURCE_DIR}/libpng.pc.in
${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}.pc @ONLY)
create_symlink(libpng.pc FILE ${PNGLIB_NAME}.pc)

# Set up links.
if(PNG_SHARED)
Expand All @@ -965,6 +969,19 @@ if(PNG_SHARED)
CLEAN_DIRECT_OUTPUT 1)
endif()

if(NOT WIN32 OR CYGWIN OR MINGW)
configure_file(${CMAKE_CURRENT_SOURCE_DIR}/libpng-config.in
pc_file${PNGLIB_NAME}-config @ONLY)
create_symlink(libpng-config FILE ${PNGLIB_NAME}-config)
else()
foreach (pc_file ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}.pc ${CMAKE_CURRENT_BINARY_DIR}/libpng.pc)
file(READ ${pc_file} png_pc_orig)
string(REPLACE "-lpng${PNGLIB_MAJOR}${PNGLIB_MINOR}" "libpng${PNGLIB_MAJOR}${PNGLIB_MINOR}.lib" png_pc_out ${png_pc_orig})
string(REPLACE "Requires.private: zlib" "Requires.private:" png_pc_out ${png_pc_out})
file(WRITE ${pc_file} ${png_pc_out})
endforeach()
endif()

# Install.
if(NOT SKIP_INSTALL_LIBRARIES AND NOT SKIP_INSTALL_ALL)
install(TARGETS ${PNG_LIB_TARGETS}
Expand Down Expand Up @@ -1025,13 +1042,13 @@ if(NOT SKIP_INSTALL_FILES AND NOT SKIP_INSTALL_ALL)
install(FILES png.5
DESTINATION ${CMAKE_INSTALL_MANDIR}/man5)
# Install the pkg-config files.
install(FILES ${CMAKE_CURRENT_BINARY_DIR}/libpng.pc
DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig)
install(FILES ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}.pc
DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig)
if(NOT CMAKE_HOST_WIN32 OR CYGWIN OR MINGW)
install(FILES ${CMAKE_CURRENT_BINARY_DIR}/libpng.pc
DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig)
install(PROGRAMS ${CMAKE_CURRENT_BINARY_DIR}/libpng-config
DESTINATION ${CMAKE_INSTALL_BINDIR})
install(FILES ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}.pc
DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig)
install(PROGRAMS ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}-config
DESTINATION ${CMAKE_INSTALL_BINDIR})
endif()
Expand Down