Switch back to Clang for Mac OS X compilation, and add a new legendary hack to ensure it still runs on Leopard.

platform/macosx/love.xcodeproj/project.pbxproj

@@ -1966,7 +1966,6 @@
 				GCC_OPTIMIZATION_LEVEL = 0;
 				GCC_TREAT_IMPLICIT_FUNCTION_DECLARATIONS_AS_ERRORS = NO;
 				GCC_TREAT_NONCONFORMANT_CODE_ERRORS_AS_WARNINGS = NO;
-				GCC_VERSION = com.apple.compilers.llvmgcc42;
 				GCC_WARN_64_TO_32_BIT_CONVERSION = NO;
 				GCC_WARN_ABOUT_MISSING_NEWLINE = NO;
 				GCC_WARN_ABOUT_MISSING_PROTOTYPES = NO;
@@ -2018,7 +2017,6 @@
 				GCC_INPUT_FILETYPE = automatic;
 				GCC_TREAT_IMPLICIT_FUNCTION_DECLARATIONS_AS_ERRORS = NO;
 				GCC_TREAT_NONCONFORMANT_CODE_ERRORS_AS_WARNINGS = NO;
-				GCC_VERSION = com.apple.compilers.llvmgcc42;
 				GCC_WARN_64_TO_32_BIT_CONVERSION = NO;
 				GCC_WARN_ABOUT_MISSING_NEWLINE = NO;
 				GCC_WARN_ABOUT_MISSING_PROTOTYPES = NO;

src/common/config.h

@@ -72,6 +72,10 @@
 #	define NOMINMAX
 #endif
 
+#if defined(LOVE_MACOSX)
+#	define LOVE_LEGENDARY_LIBSTDCXX_HACK
+#endif
+
 // Autotools config.h
 #ifdef HAVE_CONFIG_H
 #	include <../config.h>

src/love.cpp

@@ -232,6 +232,47 @@ int w__openConsole(lua_State * L)
 
 #endif // LOVE_LEGENDARY_CONSOLE_IO_HACK
 
+#ifdef LOVE_LEGENDARY_LIBSTDCXX_HACK
+
+// Workarounds for symbols that are missing from Leopard stdlibc++.dylib.
+// http://stackoverflow.com/questions/3484043/os-x-program-runs-on-dev-machine-crashing-horribly-on-others
+_GLIBCXX_BEGIN_NAMESPACE(std)
+// From ostream_insert.h
+template ostream& __ostream_insert(ostream&, const char*, streamsize);
+
+#ifdef _GLIBCXX_USE_WCHAR_T
+template wostream& __ostream_insert(wostream&, const wchar_t*, streamsize);
+#endif
+
+// From ostream.tcc
+template ostream& ostream::_M_insert(long);
+template ostream& ostream::_M_insert(unsigned long);
+template ostream& ostream::_M_insert(bool);
+#ifdef _GLIBCXX_USE_LONG_LONG
+template ostream& ostream::_M_insert(long long);
+template ostream& ostream::_M_insert(unsigned long long);
+#endif
+template ostream& ostream::_M_insert(double);
+template ostream& ostream::_M_insert(long double);
+template ostream& ostream::_M_insert(const void*);
+
+#ifdef _GLIBCXX_USE_WCHAR_T
+template wostream& wostream::_M_insert(long);
+template wostream& wostream::_M_insert(unsigned long);
+template wostream& wostream::_M_insert(bool);
+#ifdef _GLIBCXX_USE_LONG_LONG
+template wostream& wostream::_M_insert(long long);
+template wostream& wostream::_M_insert(unsigned long long);
+#endif
+template wostream& wostream::_M_insert(double);
+template wostream& wostream::_M_insert(long double);
+template wostream& wostream::_M_insert(const void*);
+#endif
+
+_GLIBCXX_END_NAMESPACE
+
+#endif // LOVE_LEGENDARY_LIBSTDCXX_HACK
+
 #ifdef LOVE_BUILD_EXE
 
 int main(int argc, char ** argv)