diff --git Makefile Makefile
index 6be7802..4c19a62 100644
--- Makefile
+++ Makefile
@@ -7,7 +7,7 @@
 
 PORTNAME=	caml
 PORTVERSION=	0.75
-PORTREVISION=	3
+PORTREVISION=	4
 CATEGORIES=	lang elisp
 MASTER_SITES=	http://caml.inria.fr/pub/distrib/caml-light-0.75/ \
 		ftp://arcadia.informatik.uni-muenchen.de/pub/comp/programming/languages/functional/caml-light/
diff --git files/patch-src_launch_Makefile files/patch-src_launch_Makefile
index 38b39aa..afba4c5 100644
--- files/patch-src_launch_Makefile
+++ files/patch-src_launch_Makefile
@@ -1,13 +1,19 @@
---- src/launch/Makefile.orig	Wed Feb 22 15:03:26 1995
-+++ src/launch/Makefile	Sun Aug  6 11:58:56 2006
-@@ -17,16 +17,17 @@
- 	chmod a+x /tmp/testscr
- 	sh -c 'if sh -c /tmp/testscr 2>/dev/null; \
-                then echo "#!$(BINDIR)/camlrun" > $(LIBDIR)/header; \
+--- src/launch/Makefile.orig	1995-02-22 10:33:26.000000000 +0100
++++ src/launch/Makefile	2011-11-12 10:26:48.000000000 +0100
+@@ -11,22 +11,15 @@
+ # have write permission in the current directory if NFS-mounted...
+ 
+ install:
+-	(echo "#!$(BINDIR)/camlrun"; \
+-	 echo "exit 2"; \
+-	 cat testprog) > /tmp/testscr
+-	chmod a+x /tmp/testscr
+-	sh -c 'if sh -c /tmp/testscr 2>/dev/null; \
+-               then echo "#!$(BINDIR)/camlrun" > $(LIBDIR)/header; \
 -               else cp camlexec $(LIBDIR)/header; \
-+               else ${BSD_INSTALL_SCRIPT} camlexec $(LIBDIR)/header; \
-                fi'
- 	rm -f /tmp/testscr
+-               fi'
+-	rm -f /tmp/testscr
++	echo "#!$(BINDIR)/camlrun" > $(LIBDIR)/header
  	for script in camlc camllight camlmktop; do \
 -	  cp $$script $(BINDIR)/$$script; \
 +	  ${BSD_INSTALL_SCRIPT} $$script $(BINDIR)/$$script; \
diff --git files/patch-src_yacc_main.c files/patch-src_yacc_main.c
new file mode 100644
index 0000000..78292de
--- /dev/null
+++ files/patch-src_yacc_main.c
@@ -0,0 +1,81 @@
+--- src/yacc/main.c.orig	1995-06-07 15:34:32.000000000 +0200
++++ src/yacc/main.c	2011-11-12 10:09:52.000000000 +0100
+@@ -1,4 +1,5 @@
+ #include <signal.h>
++#include <stdlib.h> /* for mkstemp(), getenv() */
+ #include "defs.h"
+ 
+ char dflag;
+@@ -31,6 +32,11 @@
+ char *union_file_name;
+ char *verbose_file_name;
+ 
++static int action_fd = -1;
++static int entry_fd = -1;
++static int text_fd = -1;
++static int union_fd = -1;
++
+ FILE *action_file;	/*  a temp file, used to save actions associated    */
+ 			/*  with rules until the parser is written	    */
+ FILE *entry_file;
+@@ -72,7 +78,6 @@
+ extern char *mktemp();
+ extern char *getenv();
+ 
+-
+ done(k)
+ int k;
+ {
+@@ -276,11 +281,20 @@
+     union_file_name[len + 5] = 'u';
+ 
+ #ifndef NO_UNIX
+-    mktemp(action_file_name);
+-    mktemp(entry_file_name);
+-    mktemp(text_file_name);
+-    mktemp(union_file_name);
++    action_fd = mkstemp(action_file_name);
++    entry_fd = mkstemp(entry_file_name);
++    text_fd = mkstemp(text_file_name);
++    union_fd = mkstemp(union_file_name);
+ #endif
++    if (action_fd < 0)
++	open_error(action_file_name);
++    if (entry_fd < 0)
++	open_error(entry_file_name);
++    if (text_fd < 0)
++	open_error(text_file_name);
++    if (union_fd < 0)
++	open_error(union_file_name);
++
+ 
+     len = strlen(file_prefix);
+ 
+@@ -321,15 +335,15 @@
+ 	    open_error(input_file_name);
+     }
+ 
+-    action_file = fopen(action_file_name, "w");
++    action_file = fdopen(action_fd, "w");
+     if (action_file == 0)
+ 	open_error(action_file_name);
+ 
+-    entry_file = fopen(entry_file_name, "w");
++    entry_file = fdopen(entry_fd, "w");
+     if (entry_file == 0)
+ 	open_error(entry_file_name);
+ 
+-    text_file = fopen(text_file_name, "w");
++    text_file = fdopen(text_fd, "w");
+     if (text_file == 0)
+ 	open_error(text_file_name);
+ 
+@@ -345,7 +359,7 @@
+ 	defines_file = fopen(defines_file_name, "w");
+ 	if (defines_file == 0)
+ 	    open_error(defines_file_name);
+-	union_file = fopen(union_file_name, "w");
++	union_file = fdopen(union_fd, "w");
+ 	if (union_file ==  0)
+ 	    open_error(union_file_name);
+     }