CMake: add install target and other improvements:

- Add options BUILD_TESTING and BUILD_PROGRAMS.
- Set CMAKE_DEBUG_POSTFIX.
- Use CMAKE_CXX_FLAGS_DEBUG instead of checking CMAKE_BUILD_TYPE.
- Don't set optimization flags (reversed).
- Don't add -pthread.

CMakeLists.txt

@@ -1,12 +1,17 @@
 cmake_minimum_required(VERSION 3.9)
 project(csv)
 
+option(BUILD_TESTING "Build tests" ON)
+option(BUILD_PROGRAMS "Build programs" ON)
+
 if(CSV_CXX_STANDARD)
 	set(CMAKE_CXX_STANDARD ${CSV_CXX_STANDARD})
 else()
 	set(CMAKE_CXX_STANDARD 17)
 endif(CSV_CXX_STANDARD)
 
+set(CMAKE_DEBUG_POSTFIX _d)
+
 message("Building CSV library using C++${CMAKE_CXX_STANDARD}")
 
 # Defines CSV_HAS_CXX17 in compatibility.hpp
@@ -17,18 +22,11 @@ if(MSVC)
 	# See: https://devblogs.microsoft.com/cppblog/msvc-now-correctly-reports-__cplusplus/
 	set(CMAKE_CXX_FLAGS "/EHsc /Zc:__cplusplus")
 
-	if(CMAKE_BUILD_TYPE MATCHES Debug)
-		# /Wall emits warnings about the C++ standard library
-		set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /W4")
-	endif()
+	# /Wall emits warnings about the C++ standard library
+	set(CMAKE_CXX_FLAGS_DEBUG "/W4")
 else()
 	# Ignore Visual Studio pragma regions
-	set(CMAKE_CXX_FLAGS "-pthread -Wno-unknown-pragmas")
-	if(CMAKE_BUILD_TYPE MATCHES Debug)
-		set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -O3")
-	else()
-		set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Og -g")
-	endif()
+	set(CMAKE_CXX_FLAGS "-Wno-unknown-pragmas")
 endif(MSVC)
 
 set(CSV_ROOT_DIR ${CMAKE_CURRENT_LIST_DIR})
@@ -48,7 +46,9 @@ endif()
 add_subdirectory(${CSV_SOURCE_DIR})
 
 ## Executables
-add_subdirectory("programs")
+if(BUILD_PROGRAMS)
+  add_subdirectory("programs")
+endif()
 
 ## Developer settings
 if (CSV_DEVELOPER)
@@ -75,6 +75,8 @@ if (CSV_DEVELOPER)
     endif()
 
     ## Tests
-    enable_testing()
-    add_subdirectory("tests")
+    if(BUILD_TESTING)
+      enable_testing()
+      add_subdirectory("tests")
+    endif()
 endif()

include/internal/CMakeLists.txt

@@ -22,4 +22,33 @@ target_sources(csv
 		row_buffer.cpp
 )
 
-set_target_properties(csv PROPERTIES LINKER_LANGUAGE CXX)
+set_target_properties(csv PROPERTIES LINKER_LANGUAGE CXX)
+
+if(CSV_DEVELOPER)
+  target_include_directories(csv
+      PUBLIC
+          $<INSTALL_INTERFACE:include>
+  )
+
+  install(TARGETS csv EXPORT csv-targets
+      RUNTIME DESTINATION bin
+      ARCHIVE DESTINATION lib
+      LIBRARY DESTINATION lib
+  )
+
+  set(NAMESPACE "vincentlaucsb")
+  set(PKG_NAME "${NAMESPACE}-csv")
+
+  install(EXPORT csv-targets
+      DESTINATION lib/cmake/${PKG_NAME}
+      NAMESPACE "${NAMESPACE}::"
+      FILE ${PKG_NAME}-config.cmake
+  )
+
+  install(DIRECTORY ../external ../internal
+      DESTINATION include/${PKG_NAME}
+      FILES_MATCHING PATTERN *.h PATTERN *.hpp
+      )
+
+  install(FILES ../csv.hpp DESTINATION include/${PKG_NAME})
+endif()