diff -ur imake-1.0.5.old/imake.c imake-1.0.5/imake.c
--- imake-1.0.5.old/imake.c	2012-03-26 13:31:27.000000000 +0000
+++ imake-1.0.5/imake.c	2012-03-26 16:05:04.245005685 +0000
@@ -144,6 +144,10 @@
  *	<add any global targets like 'clean' and long dependencies>
  */
 
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE 1
+#endif
+
 #include "config.h"
 
 #if defined(__FreeBSD__) || defined(__NetBSD__) || defined(__DragonFly__)
@@ -303,9 +307,9 @@
 const char *cpp = NULL;
 
 const char	*tmpMakefile;
-const char	*tmpMakefileTemplate = "/tmp/Imf.XXXXXX";
+const char	*tmpMakefileTemplate = "Imf.XXXXXX";
 const char	*tmpImakefile;
-const char	*tmpImakefileTemplate = "/tmp/IIf.XXXXXX";
+const char	*tmpImakefileTemplate = "IIf.XXXXXX";
 const char	*make_argv[ ARGUMENTS ] = {
 #ifdef WIN32
     "nmake"
@@ -371,6 +375,13 @@
 boolean verbose = FALSE;
 boolean show = TRUE;
 
+static char *get_tmp_file_name (const char *pattern)
+{
+	char *name = 0;
+	asprintf (&name, "%s/%s", getenv("TMPDIR") ?: "/tmp", pattern);
+	return name;
+}
+
 int
 main(int argc, char *argv[])
 {
@@ -402,7 +413,7 @@
 #ifdef HAVE_MKSTEMP
 		int fd;
 #endif
-		char *tmpMakefileName = Strdup(tmpMakefileTemplate);
+		char *tmpMakefileName = get_tmp_file_name(tmpMakefileTemplate);
 #ifndef HAVE_MKSTEMP
 		if (mktemp(tmpMakefileName) == NULL ||
 		    (tmpfd = fopen(tmpMakefileName, "w+")) == NULL) {
@@ -956,23 +967,13 @@
 static void
 get_libc_version(FILE *inFile)
 {
-  char aout[4096], *tmpdir;
+  char *aout = get_tmp_file_name("imakeXXXXXX"), *tmpdir;
   FILE *fp;
   const char *format = "%s -o %s -x c -";
   char *cc;
   int len;
   char *command;
 
-  /* If $TMPDIR is defined and has an acceptable length,
-   * use that as tmp dir, else use /tmp.  That fixes
-   * problems with /tmp mounted "noexec".
-   */
-  if((tmpdir = getenv("TMPDIR")) != NULL && strlen(tmpdir) < (4096-13))
-    strcpy(aout, tmpdir);
-  else
-    strcpy(aout, "/tmp");
-  strcat(aout, "/imakeXXXXXX");
-
   /* Pre-create temp file safely */
   {
     /* Linux + ELF has mkstemp() */
@@ -1782,7 +1783,7 @@
 #ifdef HAVE_MKSTEMP
 			int fd;
 #endif
-			char *tmpImakefileName = Strdup(tmpImakefileTemplate);
+			char *tmpImakefileName = get_tmp_file_name(tmpImakefileTemplate);
 #ifndef HAVE_MKSTEMP
 			if (mktemp(tmpImakefileName) == NULL ||
 			    (outFile = fopen(tmpImakefileName, "w+")) == NULL) {