Updated CMakeList.txt to support multiple targets (gravity cli, gravityapi shared lib and gravityapi static lib). Tested Windows(VC2019, MinGW64), Ubuntu 18.04 (gcc)

CMakeLists.txt

@@ -1,4 +1,7 @@
 cmake_minimum_required(VERSION 3.0)
+project(gravity VERSION 1.0 LANGUAGES C)
+
+set(CMAKE_C_STANDARD 99)
 
 SET(COMPILER_DIR src/compiler/)
 SET(RUNTIME_DIR src/runtime/)
@@ -14,29 +17,89 @@ AUX_SOURCE_DIRECTORY(${SHARED_DIR} SHARED_FILES)
 AUX_SOURCE_DIRECTORY(${UTILS_DIR} UTILS_FILES)
 AUX_SOURCE_DIRECTORY(${OPT_DIR} OPT_FILES)
 
-include_directories(${COMPILER_DIR} ${RUNTIME_DIR} ${SHARED_DIR} ${UTILS_DIR} ${OPT_DIR})
-
-SET(CMAKE_C_STANDARD 99)
+set(GRAVITY_INCLUDE_DIR ${COMPILER_DIR} ${RUNTIME_DIR} ${SHARED_DIR} ${UTILS_DIR} ${OPT_DIR})
 
 SET(SRC_FILES ${COMPILER_FILES} ${RUNTIME_FILES} ${SHARED_FILES} ${UTILS_FILES} ${OPT_FILES})
 
-ADD_LIBRARY(libgravity OBJECT ${SRC_FILES})
-
-if(WIN32)
-    LIST(APPEND LIBS "m" "Shlwapi")
-elseif(${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
-    LIST(APPEND LIBS "m")
-elseif(${CMAKE_SYSTEM_NAME} MATCHES "NetBSD")
-	add_definitions(-D_WITH_GETLINE)
-    LIST(APPEND LIBS "m")
-elseif(${CMAKE_SYSTEM_NAME} MATCHES "BSD|DragonFly")
-	add_definitions(-D_WITH_GETLINE)
-    LIST(APPEND LIBS "m")
-elseif(${CMAKE_SYSTEM_NAME} MATCHES "Linux")
-    LIST(APPEND LIBS "m" "rt")
+set(GRAVITY_DEPENDENT_LIBS "")
+set(GRAVITY_PRIVATE_DEFINITIONS "")
+set(GRAVITY_PRIVATE_COMPILE_OPTIONS "")
+
+set(GRAVITY_INSTALL_RUNTIME_PATH "/usr/local/bin")  # Gravity executable install path
+set(GRAVITY_INSTALL_LIB_PATH "lib")                 # Gravity shared library install path
+set(GRAVITY_INSTALL_LIB_STATIC_PATH "lib")          # Gravity static library install path
+
+# ----------------------------------------------------------------
+if(MSVC)
+
+    # for path functions
+    list(APPEND GRAVITY_DEPENDENT_LIBS "shlwapi")
+
+    # supress _CRT_SECURE_NO_WARNINGS for MSVC builds
+    list(APPEND GRAVITY_PRIVATE_DEFINITIONS "_CRT_SECURE_NO_WARNINGS")
+
+    # MSVC does not like static inlining
+    list(APPEND GRAVITY_PRIVATE_DEFINITIONS "inline=")
+
+    # custom unistd.h for MSVC
+    list(APPEND GRAVITY_PRIVATE_INCLUDES "gravity_visualstudio")
+
+    # warning C4068: unknown pragma
+    list(APPEND GRAVITY_PRIVATE_COMPILE_OPTIONS "/wd4068")
+
+    # make Windows installs local
+    set(GRAVITY_INSTALL_RUNTIME_PATH "${CMAKE_CURRENT_SOURCE_DIR}/bin")
+    set(GRAVITY_INSTALL_LIB_PATH "${CMAKE_CURRENT_SOURCE_DIR}/bin/lib")
+    set(GRAVITY_INSTALL_LIB_STATIC_PATH "${CMAKE_CURRENT_SOURCE_DIR}/bin/lib")
+
+elseif(MINGW)
+
+    # for path functions
+    list(APPEND GRAVITY_DEPENDENT_LIBS "shlwapi")
+
+    # make Windows installs local
+    set(GRAVITY_INSTALL_RUNTIME_PATH "${CMAKE_CURRENT_SOURCE_DIR}/bin")
+    set(GRAVITY_INSTALL_LIB_PATH "${CMAKE_CURRENT_SOURCE_DIR}/bin/lib")
+    set(GRAVITY_INSTALL_LIB_STATIC_PATH "${CMAKE_CURRENT_SOURCE_DIR}/bin/lib")
+
+elseif(${CMAKE_SYSTEM_NAME} MATCHES "Darwin|NetBSD|BSD|DragonFly|Linux")
+
+    # for math functions
+    list(APPEND GRAVITY_DEPENDENT_LIBS "m")
+
+    if (${CMAKE_SYSTEM_NAME} MATCHES "NetBSD|BSD|DragonFly")
+        list(APPEND GRAVITY_PRIVATE_DEFINITIONS "_WITH_GETLINE")
+    endif()
+
 endif()
 
-ADD_EXECUTABLE(gravity ${GRAVITY_SRC} $<TARGET_OBJECTS:libgravity>)
-TARGET_LINK_LIBRARIES(gravity ${LIBS})
+# ----------------------------------------------------------------
+add_library(gravityapi SHARED ${SRC_FILES})
+add_library(gravityapi_s STATIC ${SRC_FILES})
+
+# ----------------------------------------------------------------
+set(GRAVITY_TARGETS gravityapi gravityapi_s)
+
+foreach(target ${GRAVITY_TARGETS})
+
+    target_link_libraries(${target} PRIVATE ${GRAVITY_DEPENDENT_LIBS})
+    target_compile_definitions(${target} PRIVATE ${GRAVITY_PRIVATE_DEFINITIONS})
+    target_compile_options(${target} PRIVATE ${GRAVITY_PRIVATE_COMPILE_OPTIONS})
+    target_include_directories(${target} PRIVATE ${GRAVITY_PRIVATE_INCLUDES})
+    target_include_directories(${target} PUBLIC ${GRAVITY_INCLUDE_DIR})
+
+endforeach()
+
+# ----------------------------------------------------------------
+
+add_executable(gravity ${GRAVITY_SRC})
+target_link_libraries(gravity gravityapi_s)
+target_include_directories(gravity PRIVATE ${GRAVITY_PRIVATE_INCLUDES})
+target_include_directories(gravity PUBLIC ${GRAVITY_INCLUDE_DIR})
+
+# ----------------------------------------------------------------
 
-install(TARGETS gravity DESTINATION /usr/local/bin)
+install(TARGETS gravity ${GRAVITY_TARGETS}
+        RUNTIME DESTINATION ${GRAVITY_INSTALL_RUNTIME_PATH}
+        LIBRARY DESTINATION ${GRAVITY_INSTALL_LIB_PATH}
+        ARCHIVE DESTINATION ${GRAVITY_INSTALL_LIB_STATIC_PATH})