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Re: GCC dependencies (attn David Billinghurst)
On Sun, 2011-08-14 at 14:29 -0500, Yaakov (Cygwin/X) wrote:
> On Sat, 2011-08-13 at 16:11 +0200, Corinna Vinschen wrote:
> > > BTW, for those interested, I'm already working on updating the Fedora
> > > Cygwin toolchain to match the recent binutils/gdb releases and add the
> > > --large-address-aware patch, along with restoring cygwin-gcc-java for
> > > F15.
>
> FYI, this has been pushed to the servers now.
>
> > There's a small glitch in the cross toolchain:
> >
> > $ i686-pc-cygwin-gcc foo.c -o foo
> > $ ls foo*
> > foo foo.c
>
> Confirmed, and now I see that the same happens with Fedora's
> mingw32-gcc.
>
> > Since foo is a Cygwin executable, shouldn't gcc append .exe?
>
> This would make sense. Since mingw32-gcc does the same thing, I'll
> guess that the .exe magic was only implemented for a native compiler.
>
> Looking at the code, the .exe handling is added in gcc/gcc.c. There are
> two macros: HOST_EXECUTABLE_SUFFIX (which adds .exe to the commands it
> calls (cc1/as/collect2/ld), and TARGET_EXECUTABLE_SUFFIX, which is used
> only for and in convert_filename() to change the output filename. But
> the latter is only used if:
>
> /* By default there is no special suffix for target executables. */
> /* FIXME: when autoconf is fixed, remove the host check - dj */
> #if defined(TARGET_EXECUTABLE_SUFFIX) && defined(HOST_EXECUTABLE_SUFFIX)
> #define HAVE_TARGET_EXECUTABLE_SUFFIX
> #endif
>
> I may be new to the GCC code, but that just looks bogus. On Linux,
> HOST_EXECUTABLE_SUFFIX is obviously empty, but why should that control
> HAVE_TARGET_EXECUTABLE_SUFFIX?
>
> I've made a patch to change that, and am rebuilding cygwin-gcc with that
> now. If it works (and I don't see why it won't), I'll go ahead and
> respin releases with the patch.
cygwin-gcc 4.5.3-4 is now available for both releases on both arches. I
still need to test my patch (for trunk, attached) in other
configurations, but AFAICS it fixes the issue you reported.
Yaakov
2011-08-14 Yaakov Selkowitz <yselkowitz@...>
* gcc.c (HAVE_TARGET_EXECUTABLE_SUFFIX): Do not make dependent
on HOST_EXECUTABLE_SUFFIX.
Index: gcc/gcc.c
===================================================================
--- gcc/gcc.c (revision 177751)
+++ gcc/gcc.c (working copy)
@@ -48,8 +48,7 @@
#include "filenames.h"
/* By default there is no special suffix for target executables. */
-/* FIXME: when autoconf is fixed, remove the host check - dj */
-#if defined(TARGET_EXECUTABLE_SUFFIX) && defined(HOST_EXECUTABLE_SUFFIX)
+#if defined(TARGET_EXECUTABLE_SUFFIX)
#define HAVE_TARGET_EXECUTABLE_SUFFIX
#endif