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[DejaGnu] Some cygwin issues (with patches)

From: Billinghurst, David (CRTS)
Subject: [DejaGnu] Some cygwin issues (with patches)
Date: Wed, 4 Apr 2001 00:20:36 -0000

I have been testing gcc on cygwin.  There are couple of testsuite issues
that (i think) can only be addressed in dejagnu.  I have some fixes for
these that I'd like reviewed.

1.  Don't link with -lm

g77 programs cannot be linked with -lm, and it is unnecessary for other
languages.  I work around this by the following patch to

--- unix.exp.bak        Tue Apr  3 22:33:08 2001
+++ unix.exp    Tue Apr  3 22:40:11 2001
@@ -6,3 +6,8 @@
 set_board_info compiler  "[find_gcc]";

 set_board_info bmk,use_alarm 1;
+# Do not use -lm
+if { [istarget "*-*-cygwin*"] } {
+  set_board_info mathlib "";

2.  Compiler warnings about -fpic of -fPIC

I get excess errors like:

FAIL: gcc.dg/20000807-1.c (test for excess errors)
Excess errors:
cc1.exe: warning: -fpic ignored for target (all code is position

I think fix is in  ${prefix}/share/dejagnu/target.exp.  Add

--- target.exp.orig     Tue Apr  3 22:32:31 2001
+++ target.exp  Tue Apr  3 22:36:46 2001
@@ -271,6 +271,9 @@
     # Libgloss libnosys defines functions that warn when linked in
     regsub -all "(^|\n)\[^\n\]*: In function\[^\n\]*\n\[^\n\]\[^\n\]*is not
implemented and will always fail\[^\n\]*" $text "" text

+    # Cygwin cc1 warns about -fpic and -fPIC
+    regsub -all ".*: warning: -f(pic|PIC) ignored for target .*" $text ""
     # It might be tempting to get carried away and delete blank lines, etc.
     # Just delete *exactly* what we're ask to, and that's it.
     return $text

(Mr) David Billinghurst
Comalco Research Centre
PO Box 316, Thomastown, Vic, Australia, 3074
Phone:  +61 3 9469 0642
FAX:    +61 3 9462 2700
Email:  address@hidden

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