Adjust CMakeLists to make dependency downloading optional

1 files changed, 25 insertions, 0 deletions

diff --git a/cmake/CompilerFlags.cmake b/cmake/CompilerFlags.cmake
new file mode 100644

index 00000000..2aa92e54
--- /dev/null
+++ b/cmake/CompilerFlags.cmake
@@ -0,0 +1,25 @@
+if(CMAKE_CXX_COMPILER_ID MATCHES "Clang" OR CMAKE_CXX_COMPILER_ID MATCHES "GNU")
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} \
+        -Wall \
+        -Wextra \
+        -Werror \
+        -pipe \
+        -pedantic \
+        -Wunreachable-code")
+
+    if(CMAKE_CXX_COMPILER_ID MATCHES "GNU")
+        execute_process(COMMAND ${CMAKE_CXX_COMPILER} -dumpversion OUTPUT_VARIABLE GCC_VERSION)
+
+        if (GCC_VERSION VERSION_GREATER 4.9)
+            set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fdiagnostics-color=always" )
+        endif()
+    endif()
+
+    if(CMAKE_CXX_COMPILER_ID MATCHES "Clang")
+        set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fdiagnostics-color=always" )
+    endif()
+endif()
+
+if(NOT APPLE AND NOT MSVC)
+  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -pthread")
+endif()