Re: bootstrap broken on mingw

[Ralf Wildenhues <Ralf dot Wildenhues at gmx dot de>]

[ adding gcc-patches ]

* Gerald Pfeifer wrote on Sun, Feb 17, 2008 at 02:46:45PM CET:
> On Sun, 17 Feb 2008, Ralf Wildenhues wrote:
> > I see two possibilities: revert above patch, and list texinfo 4.11 as
> > prerequisite for building the pdf/dvi
> 
> I'm not in favor of making texinfo 4.11 a requirement.  As far as I can 
> see it was released less than half a year ago and even recent releases of 
> popular systems such as openSUSE 10.3 or FreeBSD 6.3, both released a few 
> months ago do not have this yet, though admittedly Fedora 8 does.

Note that it would be a requirement for `make dvi pdf' only.

> No objection to make this a requirement for MinGW only, of course.

That doesn't help, though, as the 4.11 requirement would be the
alternative fix for PR 35148.

So, here's another alternative: fix the MinGW issue only, while not
regressing on any of the other reported bug (famous last words):
One way for path translation on MinGW would be to use
  CMD //c echo "@set srcdir" "$(abs_srcdir)"

as in the patch below.  I need somebody to test this patch on MinGW, all
I've done is ensure build_file_translate expands to empty on
i686-pc-linux-gnu.

Thanks,
Ralf

gcc/ChangeLog:
2008-02-17  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	PR bootstrap/35218
	* Makefile.in (build_file_translate): New.
	* config.build (build_file_translate): Set to `CMD //c' on MinGW.
	* configure.ac (build_file_translate): Substitute it.
	* configure: Regenerate.

diff --git a/gcc/Makefile.in b/gcc/Makefile.in
index 9c91fb5..022208a 100644
--- a/gcc/Makefile.in
+++ b/gcc/Makefile.in
@@ -253,6 +253,8 @@ POD2MAN = pod2man --center="GNU" --release="gcc-$(version)"
 # do not correctly set the timestamp due to buggy versions of `utime'
 # in the kernel.  So, we use `echo' instead.
 STAMP = echo timestamp >
+# Translate absolute file names to w32 paths.
+build_file_translate = @build_file_translate@
 
 # Make sure the $(MAKE) variable is defined.
 @SET_MAKE@
@@ -3653,7 +3655,7 @@ gcc-vers.texi: $(BASEVER) $(DEVPHASE)
 	 then echo "@set DEVELOPMENT"; \
 	 else echo "@clear DEVELOPMENT"; \
 	 fi) > $@T
-	echo "@set srcdir $(abs_srcdir)" >> $@T
+	$(build_file_translate) echo "@set srcdir" "$(abs_srcdir)" >> $@T
 	if [ -n "$(PKGVERSION)" ]; then \
 	  echo "@set VERSION_PACKAGE $(PKGVERSION)" >> $@T; \
 	fi
diff --git a/gcc/config.build b/gcc/config.build
index 4f5421b..62486db 100644
--- a/gcc/config.build
+++ b/gcc/config.build
@@ -47,6 +47,7 @@ build_xm_file=
 build_xm_defines=
 build_exeext=
 build_install_headers_dir=install-headers-tar
+build_file_translate=
 
 # System-specific settings.
 case $build in
@@ -79,6 +80,7 @@ case $build in
   i[34567]86-*-mingw32* | x86_64-*-mingw*)
     build_xm_file=i386/xm-mingw32.h
     build_exeext=.exe
+    build_file_translate="CMD //C"
     ;;
   i[34567]86-pc-msdosdjgpp*)
     build_xm_file=i386/xm-djgpp.h
diff --git a/gcc/configure.ac b/gcc/configure.ac
index f3bc7b3..bb7c056 100644
--- a/gcc/configure.ac
+++ b/gcc/configure.ac
@@ -3727,6 +3727,7 @@ AC_SUBST(build_install_headers_dir)
 AC_SUBST(build_xm_file_list)
 AC_SUBST(build_xm_include_list)
 AC_SUBST(build_xm_defines)
+AC_SUBST(build_file_translate)
 AC_SUBST(check_languages)
 AC_SUBST(cpp_install_dir)
 AC_SUBST(xmake_file)