# Undefined symbols: "_hs_GLUT_getProcAddress", referenced from: _hugsprim_hs_GLUT_getProcAddress_0 in ccZecAVF.o
# Fix from: https://mail.haskell.org/pipermail/haskell-cafe/2007-September.txt

--- packages/GLUT/Graphics/UI/GLUT/Extensions.hs.orig	2006-09-21 04:15:16.000000000 +0545
+++ packages/GLUT/Graphics/UI/GLUT/Extensions.hs	2022-08-08 00:43:36.000000000 +0545
@@ -42,5 +42,5 @@
 getProcAddressInternal :: String -> IO (FunPtr a)
 getProcAddressInternal call = withCString call hs_GLUT_getProcAddress
 
-foreign import CALLCONV unsafe "hs_GLUT_getProcAddress" hs_GLUT_getProcAddress
+foreign import CALLCONV unsafe "glutGetProcAddress" hs_GLUT_getProcAddress
    :: CString -> IO (FunPtr a)


--- packages/GLUT/cbits/HsGLUT.c.orig	2006-09-21 04:15:16.000000000 +0545
+++ packages/GLUT/cbits/HsGLUT.c	2022-08-08 00:46:25.000000000 +0545
@@ -43,22 +43,3 @@
   }
   return (void*)0;
 }
-
-/* procName is really a const char*, but currently we can't specify this in
-   Haskell's FFI and consequently get a warning from the C compiler. */
-void*
-hs_GLUT_getProcAddress(char *procName)
-{
-#if (FREEGLUT || GLUT_API_VERSION >= 5)
-#if GLUT_GET_PROC_ADDRESS_IS_BROKEN
-  /* There are a few typos/omissions in freeglut 2.20 */
-  if (strcmp(procName, "glutWireCylinder"         ) == 0) return (void*)glutWireCylinder;
-  if (strcmp(procName, "glutSolidCylinder"        ) == 0) return (void*)glutSolidCylinder;
-  if (strcmp(procName, "glutWireSierpinskiSponge" ) == 0) return (void*)glutWireSierpinskiSponge;
-  if (strcmp(procName, "glutSolidSierpinskiSponge") == 0) return (void*)glutSolidSierpinskiSponge;
-#endif
-  return glutGetProcAddress(procName);
-#else
-  return (void*)0;
-#endif
-}