Patch for OCaml bug #0006346 http://caml.inria.fr/mantis/view.php?id=6346

ocaml-0006346.diff

diff --git a/configure b/configure
index d45e88f..25d872b 100755
--- a/configure
+++ b/configure
@@ -322,7 +322,14 @@ case "$bytecc,$target" in
     bytecccompopts="-fno-defer-pop $gcc_warnings -DSHRINKED_GNUC"
     mathlib="";;
   *,*-*-darwin*)
-    bytecccompopts="-fno-defer-pop $gcc_warnings"
+    # On recent version of OSX, gcc is a symlink to clang
+    if $bytecc --version | grep -q clang; then
+        # -fno-defer-pop is not supported by clang, and make recent
+        # versions of clang to fail
+        bytecccompopts="$gcc_warnings"
+    else
+        bytecccompopts="-fno-defer-pop $gcc_warnings"
+    fi
     mathlib=""
     mkexe="$mkexe -Wl,-no_compact_unwind"
     # Tell gcc that we can use 32-bit code addresses for threaded code