[PATCH, i386]: --enable-frame-pointer for cygwin and mingw

[Uros Bizjak <ubizjak@gmail.com>]

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On Thu, May 9, 2019 at 11:55 AM Thomas Schwinge <thomas@codesourcery.com> wrote:

> On Sun, 10 Feb 2019 20:51:39 +0100, Uros Bizjak <ubizjak@gmail.com> wrote:
> > On Fri, Feb 8, 2019 at 1:24 PM Uros Bizjak <ubizjak@gmail.com> wrote:
> > > Attached patch fixes --enable-frame-pointer handling [...]
>
> ACK.
>
> > Please note that this fix will re-enable frame pointer for all targets
> > but linux* or darwin[[8912]]. However, since builds for e.g. cygwin
> > and mingw survived just well without frame pointers in the mean time,
> > we should probably list these targets as targets without frame
> > pointers by default.
>
> I agree, this would cause the least surprise, to simply keep the previous
> default of '--disable-frame-pointer'.  Until such a global change is
> agreed on, and made...

I plan to commit the attached patch later today.

2019-05-13  Uroš Bizjak  <ubizjak@gmail.com>

    PR target/89221
    * configure.ac (--enable-frame-pointer):
    Disable by default for cygwin and mingw.
    * configure: Regenerate.

Uros.

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diff --git a/gcc/configure b/gcc/configure
index 947d263a6174..3cab176e5018 100755
--- a/gcc/configure
+++ b/gcc/configure
@@ -12197,7 +12197,7 @@ if test "${enable_frame_pointer+set}" = set; then :
 else
 
 case $target_os in
-linux* | gnu* | darwin[8912]*)
+linux* | gnu* | darwin[8912]* | cygwin* | mingw*)
   # Enable -fomit-frame-pointer by default for these systems with DWARF2.
   enable_frame_pointer=no
   ;;
diff --git a/gcc/configure.ac b/gcc/configure.ac
index bfcdf526e446..264f36fb78a8 100644
--- a/gcc/configure.ac
+++ b/gcc/configure.ac
@@ -1884,7 +1884,7 @@ AC_ARG_ENABLE(frame-pointer,
 		[enable -fno-omit-frame-pointer by default for x86])], [],
 [
 case $target_os in
-linux* | gnu* | darwin[[8912]]*)
+linux* | gnu* | darwin[[8912]]* | cygwin* | mingw*)
   # Enable -fomit-frame-pointer by default for these systems with DWARF2.
   enable_frame_pointer=no
   ;;