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Avoid uninitialized use of $U.

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Automake sets up $U in AM_C_PROTOTYPES, but we can't assume that
automake is always in use.

* lib/autoconf/general.m4 (_AC_LIBOBJS_NORMALIZE): Ensure $U is
set if automake did not define it.
* THANKS: Update.
Reported by Heiko Schlichting, via Julien Élie.

Signed-off-by: Eric Blake <ebb9@byu.net>
This commit is contained in:
Eric Blake 2010-02-09 06:22:59 -07:00
parent a2889ee464
commit 64deec9dfb
3 changed files with 12 additions and 0 deletions
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ChangeLog
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@ -1,3 +1,11 @@
2010-02-10 Eric Blake <ebb9@byu.net>
Avoid $U if it is not initialized.
* lib/autoconf/general.m4 (_AC_LIBOBJS_NORMALIZE): Ensure $U is
set if automake did not define it.
* THANKS: Update.
Reported by Heiko Schlichting, via Julien Élie.
2010-01-24 Ralf Wildenhues <Ralf.Wildenhues@gmx.de> 2010-01-24 Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
Fix substitution of carriage return on Darwin. Fix substitution of carriage return on Darwin.

2
THANKS
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@ -155,6 +155,7 @@ Hans Aberg haberg@math.su.se
Hans Olsson Hans.Olsson@dna.lth.se Hans Olsson Hans.Olsson@dna.lth.se
Hans Ulrich Niedermann hun@n-dimensional.de Hans Ulrich Niedermann hun@n-dimensional.de
Harlan Stenn stenn@whimsy.udel.edu Harlan Stenn stenn@whimsy.udel.edu
Heiko Schlichting inn-workers@fu-berlin.de
Henk Krus h.krus@cyclone.nl Henk Krus h.krus@cyclone.nl
Howard Chu hyc@highlandsun.com Howard Chu hyc@highlandsun.com
Ian Lance Taylor ian@cygnus.com Ian Lance Taylor ian@cygnus.com
@ -200,6 +201,7 @@ Juan Carlos Hurtado adso.lists@gmail.com
Jules Colding colding@42tools.com Jules Colding colding@42tools.com
Julian Onions j.onions@nexor.co.uk Julian Onions j.onions@nexor.co.uk
Julien Danjou acid@debian.org Julien Danjou acid@debian.org
Julien Élie julien@trigofacile.com
Julio Garvia ? Julio Garvia ?
Justace Clutter ? Justace Clutter ?
Jörn Rennecke amylaar@cygnus.co.uk Jörn Rennecke amylaar@cygnus.co.uk

2
lib/autoconf/general.m4
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@ -2919,6 +2919,8 @@ AC_DEFUN([AC_LIBOBJ],
AC_DEFUN([_AC_LIBOBJS_NORMALIZE], AC_DEFUN([_AC_LIBOBJS_NORMALIZE],
[ac_libobjs= [ac_libobjs=
ac_ltlibobjs= ac_ltlibobjs=
m4_ifndef([AM_C_PROTOTYPES], [U=
])dnl
for ac_i in : $LIB@&t@OBJS; do test "x$ac_i" = x: && continue for ac_i in : $LIB@&t@OBJS; do test "x$ac_i" = x: && continue
# 1. Remove the extension, and $U if already installed. # 1. Remove the extension, and $U if already installed.
ac_script='s/\$U\././;s/\.o$//;s/\.obj$//' ac_script='s/\$U\././;s/\.o$//;s/\.obj$//'