Add pkg-config metadata files for libraries (#2680)

Should core, ext, libm, and/or port libraries be properly installed
on some system, help compilation and linking against them by
providing standard `.pc` files, which can be picked up by
pkg-config.

JerryScript-DCO-1.0-Signed-off-by: Akos Kiss akiss@inf.u-szeged.hu

jerry-port/default/CMakeLists.txt

@@ -64,5 +64,9 @@ endforeach()
 target_compile_definitions(${JERRY_PORT_DEFAULT_NAME}-minimal PRIVATE DISABLE_EXTRA_API)
 
 # Installation
+configure_file(libjerry-port-default.pc.in libjerry-port-default.pc @ONLY)
+configure_file(libjerry-port-default-minimal.pc.in libjerry-port-default-minimal.pc @ONLY)
+
 install(TARGETS ${JERRY_PORT_DEFAULT_NAME} ${JERRY_PORT_DEFAULT_NAME}-minimal DESTINATION lib)
+install(FILES ${CMAKE_CURRENT_BINARY_DIR}/libjerry-port-default.pc ${CMAKE_CURRENT_BINARY_DIR}/libjerry-port-default-minimal.pc DESTINATION lib/pkgconfig)
 install(DIRECTORY ${INCLUDE_PORT_DEFAULT}/ DESTINATION include)

jerry-port/default/libjerry-port-default-minimal.pc.in

@@ -0,0 +1,11 @@
+prefix=@CMAKE_INSTALL_PREFIX@
+libdir=${prefix}/lib
+includedir=${prefix}/include
+
+Name: libjerry-port-default-minimal
+Description: JerryScript: lightweight JavaScript engine (default minimal port library)
+URL: https://github.com/pando-project/jerryscript
+Version: 1.0
+Conflicts: libjerry-port-default
+Libs: -L${libdir} -ljerry-port-default-minimal
+Cflags: -I${includedir}

jerry-port/default/libjerry-port-default.pc.in

@@ -0,0 +1,11 @@
+prefix=@CMAKE_INSTALL_PREFIX@
+libdir=${prefix}/lib
+includedir=${prefix}/include
+
+Name: libjerry-port-default
+Description: JerryScript: lightweight JavaScript engine (default port library)
+URL: https://github.com/pando-project/jerryscript
+Version: 1.0
+Conflicts: libjerry-port-default-minimal
+Libs: -L${libdir} -ljerry-port-default
+Cflags: -I${includedir}