cmake: add pkgconfig (fixes #90) (#91)

CMakeLists.txt

@@ -178,6 +178,18 @@ set_target_properties(rem PROPERTIES OUTPUT_NAME "rem-static")
 endif()
 
 
+##############################################################################
+#
+# Packaging section
+#
+
+if(CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR)
+  add_subdirectory(packaging)
+endif()
+
+configure_file(packaging/librem.pc.in librem.pc @ONLY)
+
+
 ##############################################################################
 #
 # Install section
@@ -202,3 +214,8 @@ install(TARGETS rem-shared
     NAMELINK_ONLY
     COMPONENT Development
 )
+
+install(FILES ${CMAKE_CURRENT_BINARY_DIR}/librem.pc
+  DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig
+  COMPONENT Development
+)

packaging/CMakeLists.txt

@@ -0,0 +1,12 @@
+set(CPACK_PACKAGE_NAME librem)
+set(CPACK_PACKAGE_VENDOR baresip)
+set(CPACK_PACKAGE_DESCRIPTION_SUMMARY "Audio and video processing media library")
+set(CPACK_PACKAGE_INSTALL_DIRECTORY ${CPACK_PACKAGE_NAME})
+set(CPACK_PACKAGE_VERSION_MAJOR ${PROJECT_VERSION_MAJOR})
+set(CPACK_PACKAGE_VERSION_MINOR ${PROJECT_VERSION_MINOR})
+set(CPACK_PACKAGE_VERSION_PATCH ${PROJECT_VERSION_PATCH})
+set(CPACK_VERBATIM_VARIABLES YES)
+set(CPACK_RESOURCE_FILE_LICENSE "${CMAKE_SOURCE_DIR}/LICENSE")
+set(CPACK_RESOURCE_FILE_README "${CMAKE_SOURCE_DIR}/README.md")
+
+include(CPack)

packaging/librem.pc.in

@@ -0,0 +1,11 @@
+prefix="@CMAKE_INSTALL_PREFIX@"
+exec_prefix=${prefix}
+libdir={$prefix}/lib
+includedir=${prefix}/include/rem
+
+Name: @PROJECT_NAME@
+Description: @CMAKE_PROJECT_DESCRIPTION@
+Version: @PROJECT_VERSION@
+URL: @CMAKE_PROJECT_HOMEPAGE_URL@
+Libs: -L${libdir} -lrem -lre
+Cflags: -I${includedir}