coq_HEAD: update to latest Git HEAD

pkgs/applications/science/logic/coq/HEAD.nix

@@ -3,7 +3,7 @@
 {stdenv, fetchgit, pkgconfig, ocaml, findlib, camlp5, ncurses, lablgtk ? null}:
 
 let 
-  version = "8.5pre-8bc01590";
+  version = "8.5pre-c70d5b2";
   buildIde = lablgtk != null;
   ideFlags = if buildIde then "-lablgtkdir ${lablgtk}/lib/ocaml/*/site-lib/lablgtk2 -coqide opt" else "";
   idePath = if buildIde then ''
@@ -16,17 +16,20 @@ stdenv.mkDerivation {
 
   src = fetchgit {
     url = git://scm.gforge.inria.fr/coq/coq.git;
-    rev = "8bc0159095cb0230a50c55a1611c8b77134a6060";
-    sha256 = "1cp4hbk9jw78y03vwz099yvixax161h60hsbyvwiwz2z5czjxzcv";
+    rev = "c70d5b27ad5872c74e20b6c997383fb4462a68dc";
+    sha256 = "02wks2aivgjcf4h3ss9rn683vyawz8gl8rbysdq7awxh062316l2";
   };
 
   buildInputs = [ pkgconfig ocaml findlib camlp5 ncurses lablgtk ];
 
+  patches = [ ./no-codesign.patch ];
+
   postPatch = ''
     UNAME=$(type -tp uname)
     RM=$(type -tp rm)
     substituteInPlace configure --replace "/bin/uname" "$UNAME"
     substituteInPlace tools/beautify-archive --replace "/bin/rm" "$RM"
+    substituteInPlace Makefile.build --replace "ifeq (\$(ARCH),Darwin)" "ifeq (\$(ARCH),Darwinx)"
   '';
 
   preConfigure = ''

pkgs/applications/science/logic/coq/no-codesign.patch

@@ -0,0 +1,19 @@
+diff --git a/Makefile.build b/Makefile.build
+index 2963a3d..876479c 100644
+--- a/Makefile.build
++++ b/Makefile.build
+@@ -101,13 +101,8 @@ BYTEFLAGS=$(CAMLDEBUG) $(USERFLAGS)
+ OPTFLAGS=$(CAMLDEBUGOPT) $(CAMLTIMEPROF) $(USERFLAGS)
+ DEPFLAGS= $(LOCALINCLUDES) -I ide -I ide/utils
+ 
+-ifeq ($(ARCH),Darwin)
+-LINKMETADATA=-ccopt "-sectcreate __TEXT __info_plist config/Info-$(notdir $@).plist"
+-CODESIGN=codesign -s -
+-else
+ LINKMETADATA=
+ CODESIGN=true
+-endif
+ 
+ define bestocaml
+ $(if $(OPT),\
+