From 4a1a936e64ddc0365d59579ee38e8804e2fa7e21 Mon Sep 17 00:00:00 2001
From: Andrey Astafyev <dev@246060.ru>
Date: Sat, 5 Oct 2019 08:17:36 +0300
Subject: [PATCH] CMake and pkg-config support

---
 CMakeLists.txt             | 109 +++++++++++++++++++++++++++++++++++++
 pkgconfig/whereami.pc.in   |  13 +++++
 pkgconfig/whereamipp.pc.in |  13 +++++
 3 files changed, 135 insertions(+)
 create mode 100644 CMakeLists.txt
 create mode 100644 pkgconfig/whereami.pc.in
 create mode 100644 pkgconfig/whereamipp.pc.in

diff --git a/CMakeLists.txt b/CMakeLists.txt
new file mode 100644
index 0000000..e59eeec
--- /dev/null
+++ b/CMakeLists.txt
@@ -0,0 +1,109 @@
+cmake_minimum_required(VERSION 3.1)
+project(whereami VERSION 1.0.0 LANGUAGES C CXX)
+include(GNUInstallDirs)
+
+option(BUILD_SHARED_LIBS "Build shared libs" ON)
+option(BUILD_STATIC_LIBS "Build static libs" ON)
+option(BUILD_EXAMPLES    "Build examples"    ON)
+
+find_package(PkgConfig)
+
+# whereami
+set(CMAKE_C_STANDARD 99)
+add_library(whereami OBJECT ${CMAKE_SOURCE_DIR}/src/whereami.c)
+target_include_directories(whereami
+  PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/src>
+         $<INSTALL_INTERFACE:include>)
+set_target_properties(whereami PROPERTIES POSITION_INDEPENDENT_CODE ON)
+
+if(BUILD_SHARED_LIBS)
+  add_library(whereami_shared SHARED $<TARGET_OBJECTS:whereami>)
+  set_target_properties(whereami_shared
+    PROPERTIES VERSION ${PROJECT_VERSION}
+               SOVERSION ${PROJECT_VERSION_MAJOR}
+               OUTPUT_NAME whereami
+               LIBRARY_OUTPUT_DIRECTORY ${CMAKE_INSTALL_LIBDIR})
+  install(TARGETS whereami_shared LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR})
+endif()
+
+if(BUILD_STATIC_LIBS)
+  add_library(whereami_static STATIC $<TARGET_OBJECTS:whereami>)
+  set_target_properties(whereami_static
+    PROPERTIES OUTPUT_NAME whereami
+               ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_INSTALL_LIBDIR})
+  install(TARGETS whereami_static ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR})
+endif()
+
+if(BUILD_EXAMPLES)
+  add_executable(executable ${CMAKE_SOURCE_DIR}/example/executable.c
+                            ${CMAKE_SOURCE_DIR}/src/whereami.c)
+  target_include_directories(executable PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/src>)
+  if(CMAKE_DL_LIBS)
+      target_link_libraries(executable ${CMAKE_DL_LIBS})
+  endif()
+
+  add_library(library SHARED ${CMAKE_SOURCE_DIR}/example/library.c
+                             ${CMAKE_SOURCE_DIR}/src/whereami.c)
+  target_include_directories(library PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/src>)
+  if(CMAKE_DL_LIBS)
+      target_link_libraries(library ${CMAKE_DL_LIBS})
+  endif()
+endif()
+
+if(PKG_CONFIG_FOUND)
+  configure_file(${CMAKE_SOURCE_DIR}/pkgconfig/whereami.pc.in ${CMAKE_BINARY_DIR}/whereami.pc)
+  install(FILES ${CMAKE_BINARY_DIR}/whereami.pc DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig)
+endif()
+
+
+# whereamipp
+if(CMAKE_CXX_COMPILER)
+  set(CMAKE_CXX_STANDARD 11)
+  add_library(whereamipp OBJECT ${CMAKE_SOURCE_DIR}/src/whereami++.cpp)
+  target_include_directories(whereamipp
+    PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/src>
+           $<INSTALL_INTERFACE:include>)
+  set_target_properties(whereamipp PROPERTIES POSITION_INDEPENDENT_CODE ON)
+
+  if(BUILD_SHARED_LIBS)
+    add_library(whereamipp_shared SHARED $<TARGET_OBJECTS:whereamipp>)
+    set_target_properties(whereamipp_shared
+      PROPERTIES VERSION ${PROJECT_VERSION}
+                 SOVERSION ${PROJECT_VERSION_MAJOR}
+                 OUTPUT_NAME whereamipp
+                 LIBRARY_OUTPUT_DIRECTORY ${CMAKE_INSTALL_LIBDIR})
+    install(TARGETS whereamipp_shared LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR})
+  endif()
+
+  if(BUILD_STATIC_LIBS)
+    add_library(whereamipp_static STATIC $<TARGET_OBJECTS:whereamipp>)
+    set_target_properties(whereamipp_static
+      PROPERTIES OUTPUT_NAME whereamipp
+                 ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_INSTALL_LIBDIR})
+    install(TARGETS whereamipp_static ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR})
+  endif()
+
+  if(BUILD_EXAMPLES)
+    add_executable(executable-as-cxx ${CMAKE_SOURCE_DIR}/example/executable.cpp
+                                     ${CMAKE_SOURCE_DIR}/src/whereami++.cpp
+                                     ${CMAKE_SOURCE_DIR}/src/whereami.c)
+    target_include_directories(executable-as-cxx PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/src>)
+    if(CMAKE_DL_LIBS)
+        target_link_libraries(executable-as-cxx ${CMAKE_DL_LIBS})
+    endif()
+
+    add_library(library-as-cxx SHARED ${CMAKE_SOURCE_DIR}/example/library.cpp
+                                      ${CMAKE_SOURCE_DIR}/src/whereami++.cpp
+                                      ${CMAKE_SOURCE_DIR}/src/whereami.c)
+    target_include_directories(library-as-cxx PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/src>)
+    if(CMAKE_DL_LIBS)
+        target_link_libraries(library-as-cxx ${CMAKE_DL_LIBS})
+    endif()
+
+  endif()
+
+  if(PKG_CONFIG_FOUND)
+    configure_file(${CMAKE_SOURCE_DIR}/pkgconfig/whereamipp.pc.in ${CMAKE_BINARY_DIR}/whereamipp.pc)
+    install(FILES ${CMAKE_BINARY_DIR}/whereamipp.pc DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig)
+  endif()
+endif()
diff --git a/pkgconfig/whereami.pc.in b/pkgconfig/whereami.pc.in
new file mode 100644
index 0000000..c6e02f3
--- /dev/null
+++ b/pkgconfig/whereami.pc.in
@@ -0,0 +1,13 @@
+prefix=@CMAKE_INSTALL_PREFIX@
+exec_prefix=@CMAKE_INSTALL_PREFIX@
+libdir=@CMAKE_INSTALL_PREFIX@/@CMAKE_INSTALL_LIBDIR@
+includedir=@CMAKE_INSTALL_PREFIX@/@CMAKE_INSTALL_INCLUDEDIR@
+
+Name: whereami
+Description: Whereami C library
+Version: @PROJECT_VERSION@
+
+Requires:
+Libs: -L@CMAKE_INSTALL_PREFIX@/@CMAKE_INSTALL_LIBDIR@ -lwhereami
+Cflags: -I@CMAKE_INSTALL_PREFIX@/@CMAKE_INSTALL_INCLUDEDIR@
+
diff --git a/pkgconfig/whereamipp.pc.in b/pkgconfig/whereamipp.pc.in
new file mode 100644
index 0000000..b301720
--- /dev/null
+++ b/pkgconfig/whereamipp.pc.in
@@ -0,0 +1,13 @@
+prefix=@CMAKE_INSTALL_PREFIX@
+exec_prefix=@CMAKE_INSTALL_PREFIX@
+libdir=@CMAKE_INSTALL_PREFIX@/@CMAKE_INSTALL_LIBDIR@
+includedir=@CMAKE_INSTALL_PREFIX@/@CMAKE_INSTALL_INCLUDEDIR@
+
+Name: whereamipp
+Description: Whereami library C++ bindings
+Version: @PROJECT_VERSION@
+
+Requires:
+Libs: -L@CMAKE_INSTALL_PREFIX@/@CMAKE_INSTALL_LIBDIR@ -lwhereamipp -whereami
+Cflags: -I@CMAKE_INSTALL_PREFIX@/@CMAKE_INSTALL_INCLUDEDIR@
+