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Bug#: 183398
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Status: RESOLVED
Resolution: FIXED
Assigned To: Gentoo Fonts Team <fonts@gentoo.org>
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Reporter: Martin Mokrejš <mmokrejs@ribosome.natur.cuni.cz>
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Filename Description Type Creator Created Size Actions
lfpfonts-fix-0.83-r2.ebuild lfpfonts-fix-0.83-r2.ebuild text/plain Ed Catmur 2007-09-23 23:09 0000 758 bytes Details
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Bug 183398 depends on: Show dependency tree
Bug 183398 blocks:
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Description:   Opened: 2007-06-27 13:18 0000
>>> Emerging (8 of 17) media-fonts/lfpfonts-fix-0.83-r2 to /
>>> Downloading 'http://distfiles.gentoo.org/distfiles/lfpfonts-fix-src-0.83.tar.bz2'
--15:13:49-- 
http://distfiles.gentoo.org/distfiles/lfpfonts-fix-src-0.83.tar.bz2
           => `/usr/portage/distfiles/lfpfonts-fix-src-0.83.tar.bz2'
Resolving distfiles.gentoo.org... 216.165.129.135, 156.56.247.195,
64.50.238.52, ...
Connecting to distfiles.gentoo.org|216.165.129.135|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 172,461 (168K) [application/x-tar]

100%[==============================================================================================>]
172,461      274.96K/s             

15:13:50 (274.45 KB/s) - `/usr/portage/distfiles/lfpfonts-fix-src-0.83.tar.bz2'
saved [172461/172461]

 * checking ebuild checksums ;-) ...                                           
                                                    [ ok ]
 * checking auxfile checksums ;-) ...                                          
                                                    [ ok ]
 * checking miscfile checksums ;-) ...                                         
                                                    [ ok ]
 * checking lfpfonts-fix-src-0.83.tar.bz2 ;-) ...                              
                                                    [ ok ]
>>> Unpacking source...
>>> Unpacking lfpfonts-fix-src-0.83.tar.bz2 to /var/tmp/portage/media-fonts/lfpfonts-fix-0.83-r2/work
 * Applying lfpfonts-fix-0.83-noglyph.patch ...                                
                                                    [ ok ]
>>> Source unpacked.
>>> Compiling source in /var/tmp/portage/media-fonts/lfpfonts-fix-0.83-r2/work/lfpfonts-fix-src ...

Generating different encodings:
No default character defined.
Writing 106 characters into file 'antique-10-m-r-ISO8859-1.bdf'.
No default character defined.
Writing 106 characters into file 'antique-10-m-r-ISO8859-15.bdf'.
No default character defined.
...
Writing 102 characters into file 'gamow-08-m-i-KOI8-R.bdf'.
No STARTFONT line found in 'gamow-08-m-r-sc.bdf'!
Writing 196 characters into file 'gamow-08-m-r-ISO8859-1.bdf'.
Writing 195 characters into file 'gamow-08-m-r-ISO8859-15.bdf'.
...
Writing 102 characters into file 'gamow-09-m-i-KOI8-R.bdf'.
No STARTFONT line found in 'gamow-09-m-r.bdf'!
No default character defined.
...
Writing 105 characters into file 'lucidaterminal-10-m-r-KOI8-R.bdf'.
FONT name in 'matto-10-m-r.bdf' is
'-RoliBue-Matto-Medium-R-Normal-C-10-10-75-75-M-50-ISO8859-1' and not
'*-ISO10646-1'!
FONT name in 'matto-12-m-r.bdf' is
'-RoliBue-Matto-Medium-R-Normal-C-12-12-75-75-M-80-ISO8859-1' and not
'*-ISO10646-1'!
FONT name in 'matto-14-b-r.bdf' is
'-RoliBue-Matto-Bold-R-Normal-C-14-14-75-75-M-90-ISO8859-1' and not
'*-ISO10646-1'!
FONT name in 'matto-small-12-m-r.bdf' is '-RoliBue-Matto
Small-Medium-R-Normal-C-12-12-75-75-M-80-ISO8859-1' and not '*-ISO10646-1'!
Writing 195 characters into file 'nexus-08-m-r-ISO8859-1.bdf'.
...
Writing 99 characters into file 'shine-08-m-r-KOI8-R.bdf'.
No STARTFONT line found in 'smooth-09-m-r.bdf'!
Writing 196 characters into file 'terminal-10-m-r-sc-ISO8859-1.bdf'.
...
Writing 106 characters into file 'tixus-08-m-r-KOI8-R.bdf'.
No STARTFONT line found in 'trachtenberg-11-m-r.bdf'!
No default character defined.
...
Compiling fonts:
.....................................................................................................................................................BDF
Error on line 0: bad 'STARTFONT'
bdftopcf: bdf input, gamow-08-m-r-sc.bdf, corrupt
.....................................BDF Error on line 0: bad 'STARTFONT'
bdftopcf: bdf input, gamow-09-m-r.bdf, corrupt
.................................................................BDF Error on
line 0: bad 'STARTFONT'
bdftopcf: bdf input, smooth-09-m-r.bdf, corrupt
.................................................................................BDF
Error on line 0: bad 'STARTFONT'
bdftopcf: bdf input, trachtenberg-11-m-r.bdf, corrupt
...............................
Compressing fonts:
...

------- Comment #1 From Ryan Hill 2007-09-04 03:53:19 0000 -------
i can't seem to reproduce this.  sync up, delete lfpfont-fix-src-0.83.tar.bz2
from /usr/portage/distfiles, and try again.  if it still doesn't work can you
post your emerge --info?

------- Comment #2 From Marijn 2007-09-14 23:33:11 0000 -------
I am having a similar problem:

00:0B:DB:05:86:EAbdftopcf  antique-10-m-r.bdf -o antique-10-m-r.pcf
BDF Error on line 0: bad 'STARTFONT'
bdftopcf: bdf input, antique-10-m-r.bdf, corrupt
make: *** [antique-10-m-r.pcf] Error 1

!!! ERROR: media-fonts/lfpfonts-fix-0.83-r2 failed.
Call stack:
  ebuild.sh, line 1638:   Called dyn_compile
  ebuild.sh, line 985:   Called qa_call 'src_compile'
  ebuild.sh, line 44:   Called src_compile
  lfpfonts-fix-0.83-r2.ebuild, line 38:   Called ebdftopcf 'antique-10-m-r.bdf'
'artist-10-m-r-alt.bdf' 'artist-10-m-r-serif.bdf' 'artist-10-m-r.bdf'
'artsie-09-m-r.bdf' 'asimov-09-m-r.bdf' 'bright-09-m-r.bdf'
'cantor-10-m-r-sc.bdf' 'cantor-10-m-r.bdf' 'cntdown-09-m-r.bdf'
'computer-09-m-r-alt.bdf' 'computer-09-m-r.bdf' 'computer-11-m-r.bdf'
'escher-10-m-r.bdf' 'eurotype-12-m-r.bdf' 'feynman-10-m-r.bdf'
'gagarin-10-m-i.bdf' 'gagarin-10-m-r-sc.bdf' 'gagarin-10-m-r.bdf'
'gamow-05-m-r.bdf' 'gamow-06-m-r.bdf' 'gamow-07-b-i.bdf' 'gamow-07-b-r.bdf'
'gamow-07-m-i.bdf' 'gamow-07-m-r-sc.bdf' 'gamow-07-m-r.bdf' 'gamow-08-b-i.bdf'
'gamow-08-b-r.bdf' 'gamow-08-m-i.bdf' 'gamow-08-m-r-sc.bdf' 'gamow-08-m-r.bdf'
'gamow-09-b-i-sc.bdf' 'gamow-09-b-i.bdf' 'gamow-09-b-r-alt.bdf'
'gamow-09-b-r-sc-alt.bdf' 'gamow-09-b-r.bdf' 'gamow-09-m-i-sc.bdf'
'gamow-09-m-i.bdf' 'gamow-09-m-r.bdf' 'hollow-11-m-r.bdf' 'julie-10-m-r.bdf'
'kandinsky-08-m-r-alt.bdf' 'kandinsky-09-m-r.bdf' 'lomonosov-08-m-r.bdf'
'lomonosov-10-m-r.bdf' 'lucidaterminal-10-b-r.bdf' 'lucidaterminal-10-m-r.bdf'
'matto-10-m-r.bdf' 'matto-12-m-r.bdf' 'matto-14-b-r.bdf'
'matto-small-12-m-r.bdf' 'nexus-08-m-r.bdf' 'noxis-08-m-r.bdf' 'ocr-10-m-r.bdf'
'shine-08-m-r.bdf' 'smooth-09-m-r.bdf' 'terminal-10-m-r-sc.bdf'
'terminal-10-m-r.bdf' 'terminal-16-m-r.bdf' 'terminal-20-m-r.bdf'
'test-09-b-r-alt.bdf' 'test-09-m-r-alt.bdf' 'test-09-m-r.bdf'
'test-10-m-r-alt.bdf' 'test-10-m-r.bdf' 'test-11-b-r-alt.bdf'
'test-11-bb-r-alt.bdf' 'test-11-m-r-alt.bdf' 'test-14-m-r-alt.bdf'
'thin-09-m-r.bdf' 'tixus-08-m-r-alt.bdf' 'tixus-08-m-r.bdf'
'trachtenberg-11-m-r.bdf' 'uniread-08-m-r.bdf' 'uniread-09-m-i.bdf'
'uniread-09-m-r.bdf' 'uniread-10-m-r.bdf' 'zin-09-m-r.bdf' 'zin-09-t-r.bdf'
  font-ebdftopcf.eclass, line 25:   Called die

!!! Failed to build PCF files
!!! If you need support, post the topmost build error, and the call stack if
relevant.
!!! A complete build log is located at
'/mnt/storage/tmp/portage/portage/media-fonts/lfpfonts-fix-0.83-r2/temp/build.log'.


My terminal is using (at least partly) UTF-8, is it possible that something
like that is generating weird errors like these?

Regards.

------- Comment #3 From Martin Mokrejš 2007-09-20 15:58:47 0000 -------
bdftopcf  artist-10-m-r.bdf -o artist-10-m-r.pcf
BDF Error on line 0: bad 'STARTFONT'
bdftopcf: bdf input, artist-10-m-r.bdf, corrupt
make: *** [artist-10-m-r.pcf] Error 1
 * 
 * ERROR: media-fonts/lfpfonts-fix-0.83-r2 failed.
 * Call stack:
 *   ebuild.sh, line 1654:   Called dyn_compile
 *   ebuild.sh, line 990:   Called qa_call 'src_compile'
 *   ebuild.sh, line 44:   Called src_compile
 *   lfpfonts-fix-0.83-r2.ebuild, line 37:   Called font-ebdftopcf_src_compile
 *   font-ebdftopcf.eclass, line 42:   Called ebdftopcf
'./computer-09-m-r-alt.bdf' './test-09-b-r-alt.bdf' './matto-14-b-r.bdf'
'./escher-10-m-r.bdf' './matto-12-m-r.bdf' './artist-10-m-r-serif.bdf'
'./thin-09-m-r.bdf' './test-11-bb-r-alt.bdf' './trachtenberg-11-m-r.bdf'
'./asimov-09-m-r.bdf' './gamow-05-m-r.bdf' './cantor-10-m-r.bdf'
'./gamow-07-m-i.bdf' './eurotype-12-m-r.bdf' './lucidaterminal-10-m-r.bdf'
'./terminal-20-m-r.bdf' './shine-08-m-r.bdf' './hollow-11-m-r.bdf'
'./noxis-08-m-r.bdf' './gamow-09-m-i.bdf' './gamow-07-b-i.bdf'
'./ocr-10-m-r.bdf' './terminal-10-m-r.bdf' './gamow-08-b-r.bdf'
'./lomonosov-08-m-r.bdf' './gamow-08-m-r.bdf' './uniread-08-m-r.bdf'
'./antique-10-m-r.bdf' './gamow-07-m-r-sc.bdf' './gamow-09-m-i-sc.bdf'
'./feynman-10-m-r.bdf' './gamow-09-b-r.bdf' './gamow-09-m-r.bdf'
'./artist-10-m-r.bdf' './test-10-m-r-alt.bdf' './terminal-16-m-r.bdf'
'./zin-09-t-r.bdf' './kandinsky-09-m-r.bdf' './lomonosov-10-m-r.bdf'
'./terminal-10-m-r-sc.bdf' './bright-09-m-r.bdf' './computer-09-m-r.bdf'
'./gagarin-10-m-r-sc.bdf' './computer-11-m-r.bdf' './gamow-09-b-i.bdf'
'./smooth-09-m-r.bdf' './gamow-09-b-i-sc.bdf' './gamow-09-b-r-alt.bdf'
'./test-11-m-r-alt.bdf' './test-09-m-r.bdf' './matto-10-m-r.bdf'
'./gamow-07-b-r.bdf' './test-10-m-r.bdf' './gamow-06-m-r.bdf'
'./matto-small-12-m-r.bdf' './tixus-08-m-r-alt.bdf' './test-11-b-r-alt.bdf'
'./gamow-09-b-r-sc-alt.bdf' './cntdown-09-m-r.bdf' './artist-10-m-r-alt.bdf'
'./gamow-08-m-r-sc.bdf' './zin-09-m-r.bdf' './tixus-08-m-r.bdf'
'./julie-10-m-r.bdf' './uniread-09-m-i.bdf' './uniread-10-m-r.bdf'
'./kandinsky-08-m-r-alt.bdf' './gamow-08-m-i.bdf' './gagarin-10-m-r.bdf'
'./uniread-09-m-r.bdf' './artsie-09-m-r.bdf' './cantor-10-m-r-sc.bdf'
'./test-14-m-r-alt.bdf' './test-09-m-r-alt.bdf' './gagarin-10-m-i.bdf'
'./gamow-08-b-i.bdf' './gamow-07-m-r.bdf' './nexus-08-m-r.bdf'
'./lucidaterminal-10-b-r.bdf'
 *   font-ebdftopcf.eclass, line 33:   Called die
 * 
 * Failed to build PCF files
 * If you need support, post the topmost build error, and the call stack if
relevant.
 * A complete build log is located at
'/var/tmp/portage/media-fonts/lfpfonts-fix-0.83-r2/temp/build.log'.
 * 

 * Messages for package media-fonts/lfpfonts-fix-0.83-r2:

 * 
 * ERROR: media-fonts/lfpfonts-fix-0.83-r2 failed.
 * Call stack:
 *   ebuild.sh, line 1654:   Called dyn_compile
 *   ebuild.sh, line 990:   Called qa_call 'src_compile'
 *   ebuild.sh, line 44:   Called src_compile
 *   lfpfonts-fix-0.83-r2.ebuild, line 37:   Called font-ebdftopcf_src_compile
 *   font-ebdftopcf.eclass, line 42:   Called ebdftopcf
'./computer-09-m-r-alt.bdf' './test-09-b-r-alt.bdf' './matto-14-b-r.bdf'
'./escher-10-m-r.bdf' './matto-12-m-r.bdf' './artist-10-m-r-serif.bdf'
'./thin-09-m-r.bdf' './test-11-bb-r-alt.bdf' './trachtenberg-11-m-r.bdf'
'./asimov-09-m-r.bdf' './gamow-05-m-r.bdf' './cantor-10-m-r.bdf'
'./gamow-07-m-i.bdf' './eurotype-12-m-r.bdf' './lucidaterminal-10-m-r.bdf'
'./terminal-20-m-r.bdf' './shine-08-m-r.bdf' './hollow-11-m-r.bdf'
'./noxis-08-m-r.bdf' './gamow-09-m-i.bdf' './gamow-07-b-i.bdf'
'./ocr-10-m-r.bdf' './terminal-10-m-r.bdf' './gamow-08-b-r.bdf'
'./lomonosov-08-m-r.bdf' './gamow-08-m-r.bdf' './uniread-08-m-r.bdf'
'./antique-10-m-r.bdf' './gamow-07-m-r-sc.bdf' './gamow-09-m-i-sc.bdf'
'./feynman-10-m-r.bdf' './gamow-09-b-r.bdf' './gamow-09-m-r.bdf'
'./artist-10-m-r.bdf' './test-10-m-r-alt.bdf' './terminal-16-m-r.bdf'
'./zin-09-t-r.bdf' './kandinsky-09-m-r.bdf' './lomonosov-10-m-r.bdf'
'./terminal-10-m-r-sc.bdf' './bright-09-m-r.bdf' './computer-09-m-r.bdf'
'./gagarin-10-m-r-sc.bdf' './computer-11-m-r.bdf' './gamow-09-b-i.bdf'
'./smooth-09-m-r.bdf' './gamow-09-b-i-sc.bdf' './gamow-09-b-r-alt.bdf'
'./test-11-m-r-alt.bdf' './test-09-m-r.bdf' './matto-10-m-r.bdf'
'./gamow-07-b-r.bdf' './test-10-m-r.bdf' './gamow-06-m-r.bdf'
'./matto-small-12-m-r.bdf' './tixus-08-m-r-alt.bdf' './test-11-b-r-alt.bdf'
'./gamow-09-b-r-sc-alt.bdf' './cntdown-09-m-r.bdf' './artist-10-m-r-alt.bdf'
'./gamow-08-m-r-sc.bdf' './zin-09-m-r.bdf' './tixus-08-m-r.bdf'
'./julie-10-m-r.bdf' './uniread-09-m-i.bdf' './uniread-10-m-r.bdf'
'./kandinsky-08-m-r-alt.bdf' './gamow-08-m-i.bdf' './gagarin-10-m-r.bdf'
'./uniread-09-m-r.bdf' './artsie-09-m-r.bdf' './cantor-10-m-r-sc.bdf'
'./test-14-m-r-alt.bdf' './test-09-m-r-alt.bdf' './gagarin-10-m-i.bdf'
'./gamow-08-b-i.bdf' './gamow-07-m-r.bdf' './nexus-08-m-r.bdf'
'./lucidaterminal-10-b-r.bdf'
 *   font-ebdftopcf.eclass, line 33:   Called die
 * 
 * Failed to build PCF files
 * If you need support, post the topmost build error, and the call stack if
relevant.
 * A complete build log is located at
'/var/tmp/portage/media-fonts/lfpfonts-fix-0.83-r2/temp/build.log'.


# emerge --info
Portage 2.1.3.9 (default-linux/x86/2007.0/desktop, gcc-4.2.0, glibc-2.6.1-r0,
2.6.22.6 i686)
=================================================================
System uname: 2.6.22.6 i686 Mobile Intel(R) Pentium(R) 4 - M CPU 1.80GHz
Timestamp of tree: Thu, 20 Sep 2007 14:30:01 +0000
app-shells/bash:     3.2_p17-r1
dev-java/java-config: 1.3.7, 2.0.33-r1
dev-lang/python:     2.3.6-r2, 2.4.4-r5, 2.5.1-r2
dev-python/pycrypto: 2.0.1-r6
sys-apps/baselayout: 1.12.10-r4
sys-apps/sandbox:    1.2.18.1
sys-devel/autoconf:  2.13, 2.61-r1
sys-devel/automake:  1.4_p6, 1.5, 1.6.3, 1.7.9-r1, 1.8.5-r3, 1.9.6-r2, 1.10
sys-devel/binutils:  2.18
sys-devel/gcc-config: 1.4.0-r2
sys-devel/libtool:   1.5.24
virtual/os-headers:  2.6.22-r2
ACCEPT_KEYWORDS="x86 ~x86"
CBUILD="i686-pc-linux-gnu"
CFLAGS="-O2 -march=pentium4 -mmmx -msse -msse2 -fomit-frame-pointer -pipe"
CHOST="i686-pc-linux-gnu"
CONFIG_PROTECT="/etc /usr/share/X11/xkb /usr/share/config /usr/spool/PBS
/var/bind /var/qmail/alias /var/qmail/control /var/vpopmail/domains
/var/vpopmail/etc"
CONFIG_PROTECT_MASK="/etc/env.d /etc/env.d/java/ /etc/gconf /etc/revdep-rebuild
/etc/terminfo /etc/texmf/web2c /etc/udev/rules.d"
CXXFLAGS="-O2 -march=pentium4 -mmmx -msse -msse2 -fomit-frame-pointer -pipe"
DISTDIR="/usr/portage/distfiles"
FEATURES="distlocks metadata-transfer sandbox sfperms strict unmerge-orphans
userfetch"
GENTOO_MIRRORS="http://distfiles.gentoo.org
http://distro.ibiblio.org/pub/linux/distributions/gentoo"
LINGUAS="en cs cz"
PKGDIR="/usr/portage/packages"
PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress
--force --whole-file --delete --delete-after --stats --timeout=180
--exclude=/distfiles --exclude=/local --exclude=/packages
--filter=H_**/files/digest-*"
PORTAGE_TMPDIR="/var/tmp"
PORTDIR="/usr/portage"
SYNC="rsync://rsync.gentoo.org/gentoo-portage"
USE="FFmpeg X Xaw3d a52 aac aalib acl acpi alsa amr amrnb amrwb apache2 asf ati
avi berkdb bitmap-fonts bonobo caca cairo cddb cdio cdparanoia cdr cli
cpudetection cracklib crypt cscope ctype cups curl dba dbus dga directfb divx
divx5 divx5linux dri dts dv dvb dvd dvdr dvdread eds emacs emacs-w3 emboss emf
encode ethereal evo f77 faad faad2 fam fame fbcon ffmpeg firefox flac flash
fortran fvwm fvwm2 gb gcj gd gdbm ggi gif gphoto2 gpm gstreamer gtk gtk2
gtkhtml hal highvolume i8x0 icc iconv ieee1394 ifc imagemagick imlib imlib2
inifile innodb isdnlog ithreads jack java jpeg kdtree kerberos lcms leim
libcaca libedit libwww live lzo mad matroska mcal mesa mhash midi mikmod ming
mjpeg mmx mmx2 mmxext mng modplug motif mozilla mp2 mp3 mpeg mpi mudflap mule
musepack mysql ncurses network nls nptl nptlonly ogg oggvorbis opengl openmp
oss pam pcre pda pdf pdflib perl plotutils plugin png poppler ppds pppd pthread
pthreads python qt qt3 qt3support qt4 qtx quicktime readline reflection rtc
samba scanner scp server session slp spell spl sse sse2 ssl ssse3 stroke svg
tcl tcltk tcpd tetex theora thread threads tiff tk truetype truetype-fonts
type1-fonts unicode usb userlocales v4l v4l2 vcd vidix vorbis win32codecs
winvidix wlan wmf x264 x86 xanim xml xml2 xorg xosd xprint xv xvid xvmc zeo
zlib" ALSA_CARDS="ali5451 als4000 atiixp atiixp-modem bt87x ca0106 cmipci
emu10k1 emu10k1x ens1370 ens1371 es1938 es1968 fm801 hda-intel intel8x0
intel8x0m maestro3 trident usb-audio via82xx via82xx-modem ymfpci"
ALSA_PCM_PLUGINS="adpcm alaw asym copy dmix dshare dsnoop empty extplug file
hooks iec958 ioplug ladspa lfloat linear meter mulaw multi null plug rate route
share shm softvol" ELIBC="glibc" INPUT_DEVICES="keyboard mouse evdev"
KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001
mtxorb ncurses text" LINGUAS="en cs cz" USERLAND="GNU" VIDEO_CARDS="radeon"
Unset:  CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LANG, LC_ALL, LDFLAGS,
MAKEOPTS, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS,
PORTDIR_OVERLAY

------- Comment #4 From Marijn 2007-09-23 11:21:52 0000 -------
Just tried to re-emerge (emerge --oneshot) the fonts on a machine that actually
already has them installed and I got the exact same error. It seems like some
package changed which broke these fonts :\.

------- Comment #5 From Ed Catmur 2007-09-23 23:06:32 0000 -------
The problem is this line in the ebuild:

                cat < ${a} | ( rm ${a}; sed '/^FONT /s/\(.*-\)C*-/\1C-/' > ${a}
)

This is an obvious race; occasionally rm will remove the file before cat reads
it.

The solution is to use sed -i.

------- Comment #6 From Ed Catmur 2007-09-23 23:09:58 0000 -------
Created an attachment (id=131742) [details]
lfpfonts-fix-0.83-r2.ebuild

Fixed ebuild.

------- Comment #7 From Ed Catmur 2007-09-23 23:16:18 0000 -------
(In reply to comment #5)
> The problem is this line in the ebuild:
> 
>                 cat < ${a} | ( rm ${a}; sed '/^FONT /s/\(.*-\)C*-/\1C-/' > ${a}
> )
> 
> This is an obvious race; occasionally rm will remove the file before cat reads
> it.
Actually, that's not quite what's happening; rather, whereas the intended
behaviour is:

1. ${a} is opened as cat's stdin (redirection)
2. rm unlinks ${a}
3. ${a} is created and opened as sed's stdout
4. cat reads, from the unlinked file formerly named ${a}
5. sed writes, to ${a}

However, a race can occur between the shell setting up the redirections and rm
unlinking the file, such that:

1. rm unlinks ${a}; ${a} is deleted
2. ${a} is truncated and opened as sed's stdout
3. ${a} is opened as cat's stdin
4. cat reads, from the empty ${a}
5. sed writes (nothing), to ${a}

The fix is the same, of course.

------- Comment #8 From Ryan Hill 2007-09-24 01:09:36 0000 -------
yuck.  thanks ed.

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