[SCM] GNU Autoconf source repository branch, master, updated. v2.65-36-g64deec9

[Eric Blake]

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- Log -----------------------------------------------------------------
commit 64deec9dfbddd94b31beab9dd5894536e73bc884
Author: Eric Blake <address@hidden>
Date:   Tue Feb 9 06:22:59 2010 -0700

    Avoid uninitialized use of $U.
    
    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 <address@hidden>

-----------------------------------------------------------------------

Summary of changes:
 ChangeLog               |    8 ++++++++
 THANKS                  |    2 ++
 lib/autoconf/general.m4 |    2 ++
 3 files changed, 12 insertions(+), 0 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index 18aa169..a23101e 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,11 @@
+2010-02-10  Eric Blake  <address@hidden>
+
+       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  <address@hidden>
 
        Fix substitution of carriage return on Darwin.
diff --git a/THANKS b/THANKS
index ddb1db4..8f90e90 100644
--- a/THANKS
+++ b/THANKS
@@ -155,6 +155,7 @@ Hans Aberg                  address@hidden
 Hans Olsson                 address@hidden
 Hans Ulrich Niedermann      address@hidden
 Harlan Stenn                address@hidden
+Heiko Schlichting           address@hidden
 Henk Krus                   address@hidden
 Howard Chu                  address@hidden
 Ian Lance Taylor            address@hidden
@@ -200,6 +201,7 @@ Juan Carlos Hurtado         address@hidden
 Jules Colding               address@hidden
 Julian Onions               address@hidden
 Julien Danjou               address@hidden
+Julien Élie                 address@hidden
 Julio Garvia                ?
 Justace Clutter             ?
 Jörn Rennecke               address@hidden
diff --git a/lib/autoconf/general.m4 b/lib/autoconf/general.m4
index 28fd972..15640c8 100644
--- a/lib/autoconf/general.m4
+++ b/lib/autoconf/general.m4
@@ -2919,6 +2919,8 @@ AC_DEFUN([AC_LIBOBJ],
 AC_DEFUN([_AC_LIBOBJS_NORMALIZE],
 [ac_libobjs=
 ac_ltlibobjs=
+m4_ifndef([AM_C_PROTOTYPES], [U=
+])dnl
 for ac_i in : $LIB@&address@hidden; do test "x$ac_i" = x: && continue
   # 1. Remove the extension, and $U if already installed.
   ac_script='s/\$U\././;s/\.o$//;s/\.obj$//'


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