Latest compatible version of Classicube from the original GitHub repository (https://github.com/ClassiCube/ClassiCube) that can be compiled on Classicube for PowerMac PPC running Mac OS X 10.4.

misc/windows/min-shellapi.h

@@ -0,0 +1,4 @@
+#define SHELLAPI DECLSPEC_IMPORT
+
+SHELLAPI HINSTANCE WINAPI ShellExecuteW(HWND hwnd, LPCWSTR operation, LPCWSTR file, LPCWSTR parameters, LPCWSTR directory, INT showCmd);
+SHELLAPI HINSTANCE WINAPI ShellExecuteA(HWND hwnd, LPCSTR operation,  LPCSTR file,  LPCSTR  parameters, LPCSTR  directory, INT showCmd);