improve CMakeLists, build static library by default, improve MSVC han…

…dling #86

* remove explicit static library target, build static library by default, use '-DBUILD_SHARED_LIBS=On' to get shared libs
* set compiler flags for MSVC correctly

CMakeLists.txt

@@ -8,17 +8,17 @@ project(libOpenDrive VERSION 0.3.0 DESCRIPTION ".xodr library")
 set(CMAKE_CXX_STANDARD 14)
 set(CMAKE_CXX_STANDARD_REQUIRED True)
 
-set(CMAKE_CXX_FLAGS "-Wall")
-set(CMAKE_CXX_FLAGS_RELEASE "-O3")
-
 if(MSVC)
-SET(CMAKE_CXX_FLAGS "/EHsc")
-SET(CMAKE_WINDOWS_EXPORT_ALL_SYMBOLS 1)
+    set(CMAKE_CXX_FLAGS "/EHsc /Wall")
+    set(CMAKE_WINDOWS_EXPORT_ALL_SYMBOLS 1)
+    set(CMAKE_CXX_FLAGS_RELEASE "/O2")
 else()
-set(CMAKE_CXX_FLAGS_DEBUG "-g")
+    set(CMAKE_CXX_FLAGS "-Wall")
+    set(CMAKE_CXX_FLAGS_DEBUG "-g")
+    set(CMAKE_CXX_FLAGS_RELEASE "-O3")
 endif()
 
-SET (SOURCES 
+set(SOURCES 
     src/Geometries/Arc.cpp
     src/Geometries/CubicSpline.cpp
     src/Geometries/Line.cpp
@@ -41,19 +41,12 @@ SET (SOURCES
     thirdparty/pugixml/pugixml.cpp
 )
 
-add_library(OpenDrive SHARED ${SOURCES})
+add_library(OpenDrive ${SOURCES})
 target_include_directories(OpenDrive
     PUBLIC
         $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include> $<INSTALL_INTERFACE:include>
         $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/thirdparty>)
 
-add_library(OpenDriveStatic STATIC ${SOURCES})
-target_include_directories(OpenDriveStatic
-    PUBLIC
-        $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include> $<INSTALL_INTERFACE:include>
-        $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/thirdparty>)
-set_target_properties(OpenDriveStatic PROPERTIES POSITION_INDEPENDENT_CODE ON)
-
 add_executable(test-xodr test.cpp)
 target_link_libraries(test-xodr OpenDrive)