Add pc files upon installation (#214) (#222)

* Add pc files upon installation

* Avoid hardcoded paths

CMakeLists.txt

@@ -13,7 +13,9 @@
 #
 cmake_minimum_required(VERSION 3.8)
 
-project(libzenohpico VERSION 0.10.0.0 LANGUAGES C)
+project(zenohpico VERSION 0.10.0.0 LANGUAGES C)
+
+include(CMakePackageConfigHelpers)
 
 option(BUILD_SHARED_LIBS "Build shared libraries if ON, otherwise build static libraries" ON)
 option(ZENOH_DEBUG "Use this to set the ZENOH_DEBUG variable." 0)
@@ -217,6 +219,31 @@ install(DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/include/zenoh-pico
   COMPONENT Headers
 )
 
+set(CMAKE_INSTALL_CMAKEDIR "${CMAKE_INSTALL_LIBDIR}/cmake/zenohpico")
+# Generate <Package>Config.cmake
+configure_package_config_file(
+  "PackageConfig.cmake.in"
+  "${CMAKE_CURRENT_BINARY_DIR}/zenohpicoConfig.cmake"
+  INSTALL_DESTINATION "${CMAKE_INSTALL_CMAKEDIR}")
+
+# Generate <Package>Version.cmake
+write_basic_package_version_file(
+  "${CMAKE_CURRENT_BINARY_DIR}/zenohpicoConfigVersion.cmake"
+  VERSION ${PROJECT_VERSION}
+  COMPATIBILITY SameMajorVersion)
+
+install(
+  FILES "${CMAKE_CURRENT_BINARY_DIR}/zenohpicoConfig.cmake"
+        "${CMAKE_CURRENT_BINARY_DIR}/zenohpicoConfigVersion.cmake"
+  DESTINATION "${CMAKE_INSTALL_CMAKEDIR}"
+  CONFIGURATIONS ${configurations}
+  COMPONENT dev)
+
+if(UNIX)
+  configure_file("${CMAKE_SOURCE_DIR}/zenohpico.pc.in" "${CMAKE_SOURCE_DIR}/zenohpico.pc" @ONLY)
+  install(FILES "${CMAKE_SOURCE_DIR}/zenohpico.pc" CONFIGURATIONS Release RelWithDebInfo DESTINATION "${CMAKE_INSTALL_LIBDIR}/pkgconfig")
+endif()
+
 if(BUILD_EXAMPLES)
   add_subdirectory(examples)
 endif()
@@ -363,4 +390,4 @@ if(PACKAGING)
   include(CPack)
 endif()
 
-endif()
+endif()

PackageConfig.cmake.in

@@ -0,0 +1,28 @@
+#
+# Copyright (c) 2023 ZettaScale Technology.
+#
+# This program and the accompanying materials are made available under the
+# terms of the Eclipse Public License 2.0 which is available at
+# http://www.eclipse.org/legal/epl-2.0, or the Apache License, Version 2.0
+# which is available at https://www.apache.org/licenses/LICENSE-2.0.
+#
+# SPDX-License-Identifier: EPL-2.0 OR Apache-2.0
+#
+# Contributors:
+#   ZettaScale Zenoh team, <[email protected]>
+#
+
+@PACKAGE_INIT@
+
+add_library(__zenohpico_static STATIC IMPORTED GLOBAL)
+add_library(zenohpico::static ALIAS __zenohpico_static)
+set_property(TARGET __zenohpico_static PROPERTY IMPORTED_LOCATION "@CMAKE_INSTALL_PREFIX@/@CMAKE_INSTALL_LIBDIR@/@STATICLIB@")
+
+add_library(__zenohpico_lib SHARED IMPORTED GLOBAL)
+add_library(zenohpico::lib ALIAS __zenohpico_lib)
+set_target_properties(__zenohpico_lib PROPERTIES IMPORTED_NO_SONAME TRUE)
+set_property(TARGET __zenohpico_lib PROPERTY IMPORTED_LOCATION "@CMAKE_INSTALL_PREFIX@/@CMAKE_INSTALL_LIBDIR@/@DYLIB@")
+if(NOT ("@IMPLIB@" STREQUAL ""))
+    set_property(TARGET __zenohpico_lib PROPERTY IMPORTED_IMPLIB "@CMAKE_INSTALL_PREFIX@/@CMAKE_INSTALL_LIBDIR@/@IMPLIB@")
+endif()
+target_include_directories(__zenohpico_lib INTERFACE "@CMAKE_INSTALL_PREFIX@/@CMAKE_INSTALL_INCLUDEDIR@")

zenohpico.pc.in

@@ -0,0 +1,8 @@
+prefix=@CMAKE_INSTALL_PREFIX@
+
+Name: @PROJECT_NAME@
+Description: @CMAKE_PROJECT_DESCRIPTION@
+URL: @CMAKE_PROJECT_HOMEPAGE_URL@
+Version: @PROJECT_VERSION@
+Cflags: -I${prefix}/@CMAKE_INSTALL_INCLUDEDIR@
+Libs: -L${prefix}/@CMAKE_INSTALL_LIBDIR@ -lzenohpico@LIBNAME_POSTFIX@