Merge pull request #591 from miniupnp/cmake-pkg-config

miniupnpc/CMakeLists.txt: generate and install miniupnpc.pc

miniupnpc/CMakeLists.txt

@@ -1,8 +1,11 @@
-cmake_minimum_required(VERSION 3.5 FATAL_ERROR)
+cmake_minimum_required(VERSION 3.12 FATAL_ERROR)
 
-project (miniupnpc C)
+project (miniupnpc
+         VERSION 2.2.3
+         DESCRIPTION "UPnP IGD client lightweight library"
+         HOMEPAGE_URL https://miniupnp.tuxfamily.org/
+         LANGUAGES C)
 
-set (MINIUPNPC_VERSION 2.2.3)
 set (MINIUPNPC_API_VERSION 17)
 
 option (UPNPC_BUILD_STATIC "Build static library" TRUE)
@@ -141,7 +144,7 @@ if (UPNPC_BUILD_SHARED)
   add_library (miniupnpc::miniupnpc ALIAS libminiupnpc-shared)
   set_target_properties (libminiupnpc-shared PROPERTIES EXPORT_NAME miniupnpc)
   set_target_properties (libminiupnpc-shared PROPERTIES OUTPUT_NAME "miniupnpc")
-  set_target_properties (libminiupnpc-shared PROPERTIES VERSION ${MINIUPNPC_VERSION})
+  set_target_properties (libminiupnpc-shared PROPERTIES VERSION ${PROJECT_VERSION})
   set_target_properties (libminiupnpc-shared PROPERTIES SOVERSION ${MINIUPNPC_API_VERSION})
   target_link_libraries (libminiupnpc-shared PRIVATE miniupnpc-private)
   target_compile_definitions(libminiupnpc-shared PRIVATE MINIUPNP_EXPORTS)
@@ -219,6 +222,8 @@ if (UPNPC_BUILD_TESTS)
 # set (UPNPC_INSTALL_TARGETS ${UPNPC_INSTALL_TARGETS} testminixml minixmlvalid testupnpreplyparse testigddescparse testminiwget)
 endif ()
 
+configure_file(miniupnpc.pc.in miniupnpc.pc @ONLY)
+
 if (NOT UPNPC_NO_INSTALL)
   install (FILES
     include/miniupnpc.h
@@ -237,6 +242,10 @@ if (NOT UPNPC_NO_INSTALL)
   install(FILES miniupnpc-config.cmake
     DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/miniupnpc
   )
+
+  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/miniupnpc.pc
+    DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig
+  )
 endif()
 
 # vim: ts=2:sw=2:expandtab

miniupnpc/Makefile

@@ -3,7 +3,7 @@
 # http://miniupnp.free.fr/
 # https://miniupnp.tuxfamily.org/
 # https://github.com/miniupnp/miniupnp
-# (c) 2005-2021 Thomas Bernard
+# (c) 2005-2022 Thomas Bernard
 # to install use :
 # $ make DESTDIR=/tmp/dummylocation install
 # or
@@ -293,6 +293,7 @@ $(BUILD)/miniupnpc.pc:	VERSION
 	echo "" >> $@
 	echo "Name: miniUPnPc" >> $@
 	echo "Description: UPnP IGD client lightweight library" >> $@
+	echo "URL: https://miniupnp.tuxfamily.org/" >> $@
 	echo "Version: $(VERSION)" >> $@
 	echo "Libs: -L\$${libdir} -lminiupnpc" >> $@
 	echo "Cflags: -I\$${includedir}" >> $@

miniupnpc/miniupnpc.pc.in

@@ -0,0 +1,18 @@
+# this template is filled-in by CMake `configure_file(... @ONLY)`
+# the `@....@` are filled in by CMake configure_file(), 
+# from variables set in your CMakeLists.txt or by CMake itself
+#
+# Good tutoral for understanding .pc files: 
+# https://people.freedesktop.org/~dbn/pkg-config-guide.html
+
+prefix="@CMAKE_INSTALL_PREFIX@"
+exec_prefix="${prefix}"
+libdir="${prefix}/lib"
+includedir="${prefix}/include"
+
+Name: @PROJECT_NAME@
+Description: @PROJECT_DESCRIPTION@
+URL: @PROJECT_HOMEPAGE_URL@
+Version: @PROJECT_VERSION@
+Libs: -L"${libdir}" -lminiupnpc
+Cflags: -I"${includedir}"