[ xdvi-Bugs-2933610 ] Parallel build failure: 'libgui.a': No such file

Bugs item #2933610, was opened at 2010-01-17 00:48
Message generated for change (Tracker Item Submitted) made by edcatmur
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Category: None
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Ed Catmur (edcatmur)
Assigned to: Nobody/Anonymous (nobody)
Summary: Parallel build failure: 'libgui.a': No such file

Initial Comment:
Compilation fails when built with make options -j2 or higher.

Sample errors:

rm -f libgui.a
x86_64-pc-linux-gnu-ranlib libgui.a
x86_64-pc-linux-gnu-ranlib: 'libgui.a': No such file
make[1]: *** [libgui.a] Error 1
make[1]: Leaving directory `/var/tmp/portage/app-text/xdvik-22.84.16/work/xdvik-22.84.16/texk/xdvik/gui'
make: *** [gui/libgui.a] Error 2
make: *** Waiting for unfinished jobs....

Alternatively:

rm -f libgui.a
i686-pc-linux-gnu-ar rc libgui.a help-window.o message-window.o mag.o menu.o Panner.o pagesel.o print-dialog.o print-log.o search-dialog.o selection.o sfDir.o sfDraw.o sfPath.o sfSelFile.o statusline.o Tip.o topic-window.o xaw_bitmaps.o xaw_menu.o xicon.o xlwradio.o xm_colorsel.o xm_filesel.o xm_menu.o xm_prefs.o xm_prefs_appearance.o xm_prefs_fonts.o xm_prefs_page.o xm_prefs_scroll.o xm_prefs_helpers.o xm_toolbar.o
i686-pc-linux-gnu-gcc -DHAVE_CONFIG_H  -I. -I. -I.. -I./.. -W -Wall -Wunused  -I/usr/include/kpathsea -DPS_GS  -DXDVI_KPSE_PROG_NAME=xdvi -I./gui   -ggdb -O1 -O2 -O3 -pipe -march=core2 -mmmx -msse -m3dnow -fdiagnostics-show-option  -c dvisel.c -o dvisel.o
i686-pc-linux-gnu-ar: libgui.a: Error reading xm_toolbar.o: File truncated
make[1]: *** [libgui.a] Error 1
make[1]: Leaving directory `/var/tmp/portage/app-text/xdvik-22.84.16/work/xdvik-22.84.16/texk/xdvik/gui'
make: *** [libguibuild] Error 2
make: *** Waiting for unfinished jobs....

This is caused by the duplicate build target for gui/libgui.a.

The attached patch fixes the issue in the recommended[1] manner.

Downstream bug on Gentoo bugzilla[2].

1. http://www.gnu.org/software/automake/manual/make/Phony-Targets.html
2. http://bugs.gentoo.org/show_bug.cgi?id=293541

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