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Change CMake generated pkgconfig to match meson. #286

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Change CMake generated pkgconfig to match meson. #286

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37ec9b0
Change CMake generated pkgconfig to match meson.
BillyONeal Aug 21, 2026
041d508
Also install pkg-config on Windows.
BillyONeal Aug 21, 2026
27db5d8
Search CMAKE_C_IMPLICIT_LINK_DIRECTORIES for libm as suggested by @dg0yt
BillyONeal Aug 21, 2026
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24 changes: 12 additions & 12 deletions CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -17,10 +17,13 @@ option(BUILD_EXAMPLES "Build examples" ON)
include(GNUInstallDirs)
include(CMakePackageConfigHelpers)

if(NOT CMAKE_HOST_WIN32)
find_library(MATH_LIBRARY_PATH NAMES m PATHS ${CMAKE_C_IMPLICIT_LINK_DIRECTORIES})
if(MATH_LIBRARY_PATH)
set(MATH_LIBRARY "m")
set(LIBS "-lm")
else()
set(MATH_LIBRARY "")
set(LIBS "")
endif()

if(NOT ENABLE_OPT)
Expand Down Expand Up @@ -93,16 +96,13 @@ install(
DESTINATION ${config_install_dir}
)

if(NOT CMAKE_HOST_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 "-lm")
set(prefix ${CMAKE_INSTALL_PREFIX})
set(exec_prefix ${CMAKE_INSTALL_PREFIX})
set(libdir ${CMAKE_INSTALL_FULL_LIBDIR})
set(includedir ${CMAKE_INSTALL_FULL_INCLUDEDIR})

foreach(libname ${spng_TARGETS})
configure_file(${CMAKE_CURRENT_SOURCE_DIR}/cmake/libspng.pc.in ${CMAKE_CURRENT_BINARY_DIR}/cmake/lib${libname}.pc @ONLY)
foreach(libname ${spng_TARGETS})
configure_file(${CMAKE_CURRENT_SOURCE_DIR}/cmake/spng.pc.in ${CMAKE_CURRENT_BINARY_DIR}/cmake/${libname}.pc @ONLY)

install(FILES ${CMAKE_CURRENT_BINARY_DIR}/cmake/lib${libname}.pc DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig)
endforeach()
endif()
install(FILES ${CMAKE_CURRENT_BINARY_DIR}/cmake/${libname}.pc DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig)
endforeach()
2 changes: 1 addition & 1 deletion cmake/libspng.pc.in → cmake/spng.pc.in
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Expand Up @@ -3,7 +3,7 @@ exec_prefix=@exec_prefix@
libdir=@libdir@
includedir=@includedir@/

Name: lib@libname@
Name: @libname@
Description: PNG decoding and encoding library
Version: @SPNG_VERSION@
Requires: zlib
Expand Down