From ef62a97ed0cdc33f4f8892561fb37682e8769044 Mon Sep 17 00:00:00 2001
From: simonmar <unknown>
Date: Thu, 11 May 2000 13:30:11 +0000
Subject: [PATCH] [project @ 2000-05-11 13:30:11 by simonmar] Try to avoid
 clashes with files already in $TMPDIR.

---
 ghc/driver/ghc.lprl |    9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/ghc/driver/ghc.lprl b/ghc/driver/ghc.lprl
index ea1a7e3..e68881d 100644
--- a/ghc/driver/ghc.lprl
+++ b/ghc/driver/ghc.lprl
@@ -158,7 +158,14 @@ $SIG{'QUIT'} = 'quit_upon_signal';
 			   : "$TopPwd/${CURRENT_DIR}" );
 
 if ( $ENV{'TMPDIR'} ) { # where to make tmp file names
-    $Tmp_prefix = ($ENV{'TMPDIR'} . "/ghc$$");
+    # Try to find a $Tmp_prefix which isn't being used...
+    $tmp = $$;
+    do {
+      $Tmp_prefix = ($ENV{'TMPDIR'} . "/ghc$tmp");
+      $tmp++;
+    } while ( -e "$Tmp_prefix.hc" ||
+	      -e "$Tmp_Prefix.s"  || 
+	      -e "$Tmp_Prefix.hi" );
 } else {
     print STDERR "TMPDIR has not been set to anything useful!\n" if (${TMPDIR} eq '');
     $Tmp_prefix ="${TMPDIR}/ghc$$"; # TMPDIR set via Makefile when booting..
-- 
1.7.10.4