From 935c1d139e3f38f9d1ba597108a68c628c453bcb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C8=98tefan=20Talpalaru?= <stefantalpalaru@yahoo.com>
Date: Mon, 25 May 2020 02:22:41 +0200
Subject: [PATCH] more CMake options

- generic .gitignore entries for CMake projects
- generate a pkg-config file
---
 .gitignore          | 26 ++++++++++++++++++++++++
 CMakeLists.txt      | 18 ++++++++++++++---
 DOtherSide.pc.cmake | 14 +++++++++++++
 lib/CMakeLists.txt  | 48 ++++++++++++++++++++++++++++++---------------
 4 files changed, 87 insertions(+), 19 deletions(-)
 create mode 100644 DOtherSide.pc.cmake

diff --git a/.gitignore b/.gitignore
index e65a753..cb9d9ee 100644
--- a/.gitignore
+++ b/.gitignore
@@ -10,3 +10,29 @@ nimcache
 .idea
 *.orig
 doc
+
+# libraries
+*.a
+*.so
+*.so.*
+
+# CMake
+CMakeLists.txt.user
+CMakeCache.txt
+CMakeFiles
+CMakeScripts
+Testing
+Makefile
+cmake_install.cmake
+install_manifest.txt
+compile_commands.json
+CTestTestfile.cmake
+_deps
+*_autogen
+CMakeDoxyfile.in
+CMakeDoxygenDefaults.cmake
+DOtherSide.pc
+
+# binaries
+test/TestDynamicQObject
+
diff --git a/CMakeLists.txt b/CMakeLists.txt
index e2410d0..174d006 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -2,6 +2,11 @@ cmake_minimum_required(VERSION 3.2)
 
 project(DOtherSide)
 
+option(ENABLE_DOCS "Enable docs" ON)
+option(ENABLE_TESTS "Enable tests" ON)
+option(ENABLE_DYNAMIC_LIBS "Enable dynamic libraries" ON)
+option(ENABLE_STATIC_LIBS "Enable static libraries" ON)
+
 # Add additional source path for cmake
 list(APPEND CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/cmake/)
 
@@ -16,10 +21,17 @@ if (CMAKE_COMPILER_IS_GNUCC OR CMAKE_COMPILER_IS_GNUCXX)
         message(STATUS "Enabling coverage")
         set(CMAKE_BUILD_TYPE Debug)
         add_compile_options(-g -O0 --coverage)
-	add_link_options(--coverage)
+        add_link_options(--coverage)
     endif()
 endif()
 
-add_subdirectory(doc)
 add_subdirectory(lib)
-add_subdirectory(test)
+
+if(ENABLE_DOCS)
+    add_subdirectory(doc)
+endif()
+
+if(ENABLE_TESTS)
+    add_subdirectory(test)
+endif()
+
diff --git a/DOtherSide.pc.cmake b/DOtherSide.pc.cmake
new file mode 100644
index 0000000..eb54172
--- /dev/null
+++ b/DOtherSide.pc.cmake
@@ -0,0 +1,14 @@
+prefix=@CMAKE_INSTALL_PREFIX@
+exec_prefix=@CMAKE_INSTALL_PREFIX@
+libdir=@CMAKE_INSTALL_FULL_LIBDIR@
+sharedlibdir=@CMAKE_INSTALL_FULL_LIBDIR@
+includedir=@CMAKE_INSTALL_FULL_INCLUDEDIR@
+
+Name: @PROJECT_NAME@
+Description: C language library for creating bindings for the Qt QML language
+Version: @DOTHERSIDE_VERSION@
+
+Requires: @PC_REQUIRES@
+Libs: -L${libdir} -lDOtherSide
+Cflags: -I${includedir}
+
diff --git a/lib/CMakeLists.txt b/lib/CMakeLists.txt
index f389fee..e89cb9f 100644
--- a/lib/CMakeLists.txt
+++ b/lib/CMakeLists.txt
@@ -1,5 +1,7 @@
 project(DOtherSide)
 
+include(GNUInstallDirs)
+
 # Macro for merging common code between static and shared
 macro(add_target name type)
     find_package(Qt5 COMPONENTS Core Qml Gui Quick QuickControls2 Widgets)
@@ -38,34 +40,48 @@ macro(add_target name type)
 
     target_link_libraries(${name} PRIVATE Qt5::Core Qt5::Gui Qt5::Widgets Qt5::Qml Qt5::Quick)
 
+    # for DOtherSide.pc
+    set(PC_REQUIRES "Qt5Core, Qt5Gui, Qt5Widgets, Qt5Qml, Qt5Quick")
     if (${Qt5QuickControls2_FOUND})
         target_link_libraries(${name} PRIVATE Qt5::QuickControls2)
+        set(PC_REQUIRES "${PC_REQUIRES}, Qt5QuickControls2")
     endif()
 endmacro()
 
-# Add shared version
-add_target(${PROJECT_NAME} SHARED)
 set(major 0)
 set(minor 6)
 set(patch 4)
-set_target_properties(${PROJECT_NAME}
-PROPERTIES
-    SOVERSION "${major}.${minor}"
-    VERSION "${major}.${minor}.${patch}"
-)
+set(DOTHERSIDE_VERSION "${major}.${minor}.${patch}")
+
+# Add shared version
+if(ENABLE_DYNAMIC_LIBS)
+    add_target(${PROJECT_NAME} SHARED)
+    set_target_properties(${PROJECT_NAME}
+        PROPERTIES
+        SOVERSION "${major}.${minor}"
+        VERSION "${major}.${minor}.${patch}"
+    )
+    install(TARGETS ${PROJECT_NAME}
+        LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
+    )
+endif(ENABLE_DYNAMIC_LIBS)
 
 # Add static version
-add_target(${PROJECT_NAME}Static STATIC)
+if(ENABLE_STATIC_LIBS)
+    add_target(${PROJECT_NAME}Static STATIC)
+    install(TARGETS ${PROJECT_NAME}Static
+        ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
+    )
+endif(ENABLE_STATIC_LIBS)
 
 # Install directive for header files
 install(FILES
-  include/DOtherSide/DOtherSide.h
-  include/DOtherSide/DOtherSideTypes.h
-  DESTINATION include/DOtherSide
+    include/DOtherSide/DOtherSide.h
+    include/DOtherSide/DOtherSideTypes.h
+    DESTINATION include/DOtherSide
 )
 
-# Install directive for binaries
-install(TARGETS ${PROJECT_NAME}
-  RUNTIME DESTINATION bin
-  LIBRARY DESTINATION lib
-)
+# pkg-config file
+configure_file(${CMAKE_SOURCE_DIR}/DOtherSide.pc.cmake ${CMAKE_BINARY_DIR}/DOtherSide.pc @ONLY)
+install(FILES ${CMAKE_BINARY_DIR}/DOtherSide.pc DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig)
+