Fix MacOS compilation for 32 and 64 bits (#78)

CMakeLists.txt

@@ -254,6 +254,6 @@ if(CMAKE_CXX_COMPILER_ID MATCHES "Clang")
   target_compile_options(devilutionx PRIVATE -Wno-ignored-attributes)
   # Fix: error: cast from pointer to smaller type 'unsigned char' loses information
   target_compile_options(devilution PRIVATE -fms-extensions -fms-compatibility -fms-compatibility-version=19.00)
-
-  set_target_properties(devilutionx PROPERTIES LINK_FLAGS "-liconv")
+	# Silence appfat.cpp warnings
+  set(CMAKE_CXX_FLAGS  "${CMAKE_CXX_FLAGS} -Wno-narrowing")
 endif()

Xcode/devilutionX.xcodeproj/project.pbxproj

@@ -1317,6 +1317,7 @@
 					"-fms-extensions",
 					"-fms-compatibility",
 					"'-fms-compatibility-version=19.00'",
+					"-Wno-narrowing",
 					"'-std=c++14'",
 				);
 				OTHER_LIBTOOLFLAGS = " ";
@@ -1460,6 +1461,7 @@
 					"-fms-extensions",
 					"-fms-compatibility",
 					"'-fms-compatibility-version=19.00'",
+					"-Wno-narrowing",
 					"'-std=c++14'",
 				);
 				OTHER_LIBTOOLFLAGS = " ";