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Subject: |
24.1; Build failure on amd64 with x32 ABI |
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Date: |
Sun, 10 Jun 2012 21:42:20 +0200 |
Forwarding downstream bug: <https://bugs.gentoo.org/show_bug.cgi?id=420257>
Emacs 24.1 fails to build on an amd64 system with x32 ABI [1][2].
During compilation, about 20000 warnings like:
warning: left shift count >= width of type [enabled by default]
warning: right shift count >= width of type [enabled by default]
occur, and finally the build process aborts with a segmentation fault:
if test "no" = "yes"; then \
ln -f temacs bootstrap-emacs; \
else \
`/bin/pwd`/temacs --batch --load loadup bootstrap || exit 1; \
test "X" = X || -zex emacs; \
mv -f emacs bootstrap-emacs; \
fi
/bin/sh: line 6: 27446 Segmentation fault `/bin/pwd`/temacs --batch
--load loadup bootstrap
make[1]: *** [bootstrap-emacs] Error 1
make[1]: Leaving directory
`/var/tmp/portage/app-editors/emacs-24.1/work/emacs-24.1/src'
make: *** [src] Error 2
See [3] for the full build log.
I've attached a one line patch that fixes the problem for me.
AFAICS, Emacs from BZR is not affected.
(Sorry about the bad timing, but x32 support in Gentoo is just
available since a few days.)
[1] https://lwn.net/Articles/500482/
[2] https://sites.google.com/site/x32abi/
[3] http://dev.gentoo.org/~ulm/emacs-24.1-build.log
--- emacs-24.1-orig/configure.in
+++ emacs-24.1/configure.in
@@ -749,6 +749,7 @@
machine=intel386
machfile="m/${machine}.h"
fi
+ AC_CHECK_DECL([__ILP32__], [machfile="m/intel386.h"])
fi
AC_PATH_PROG(INSTALL_INFO, install-info)
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--- Begin Message ---
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Subject: |
Re: bug#11669: 24.1; Build failure on amd64 with x32 ABI |
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Date: |
Thu, 21 Jun 2012 15:44:19 -0400 |
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User-agent: |
Gnus (www.gnus.org), GNU Emacs (www.gnu.org/software/emacs/) |
Version: 24.2
OK, I applied the configure version to the emacs-24 branch marked "do
not merge to trunk". It should be academic anyway since at the moment it
does not look like 24.2 will come from there (effectively).
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