[Freeciv-Dev] (PR#4238) autogen breaks with sed 4.x

["Jason Short" <jdorje@xxxxxxxxxxxxxxxxxxxxx>]

Debian 'sid' recently upgraded to sed 4.0.7.  Now running autogen.sh gives:

[jdorje@debian:~/src/freeciv/freeciv]$ ./autogen.sh
+ checking for autoconf >= 2.52 ... sed: -e expression #1, char 21: 
Invalid range end
./autogen.sh: line 84: [: : integer expression expected
./autogen.sh: line 86: [: : integer expression expected
found , ok.
+ checking for automake >= 1.4 ... sed: -e expression #1, char 21: 
Invalid range end
./autogen.sh: line 84: [: : integer expression expected
./autogen.sh: line 86: [: : integer expression expected
found , ok.
+ checking for xgettext >= 0.10.36 ... sed: -e expression #1, char 21: 
Invalid range end
./autogen.sh: line 84: [: : integer expression expected
./autogen.sh: line 86: [: : integer expression expected
found , ok.
+ checking for msgfmt >= 0.10.36 ... sed: -e expression #1, char 21: 
Invalid range end
./autogen.sh: line 84: [: : integer expression expected
./autogen.sh: line 86: [: : integer expression expected
found , ok.
+ using new autoconf configuration (use --disable-autoconf2.52 to use old)
+ creating acinclude.m4
+ running aclocal ...
   [...]

autogen works (I think), but gives these errors.

I believe the difference is that [A-z] is no longer supported as a 
regular expression.  I think the attached patch will fix this.

jason

Index: autogen.sh
===================================================================
RCS file: /home/freeciv/CVS/freeciv/autogen.sh,v
retrieving revision 1.11
diff -u -r1.11 autogen.sh
--- autogen.sh  2003/01/31 23:05:52     1.11
+++ autogen.sh  2003/05/14 13:37:53
@@ -70,7 +70,7 @@
     return 1
   }
   # the following line is carefully crafted sed magic
-  pkg_version=`$PACKAGE --version|head -n 1|sed 's/^[a-zA-z\.\ ()]*//;s/ 
.*$//'`
+  pkg_version=`$PACKAGE --version|head -n 1|sed 's/^[a-zA-Z\.\ ()]*//;s/ 
.*$//'`
   debug "pkg_version $pkg_version"
   pkg_major=`echo $pkg_version | cut -d. -f1`
   pkg_minor=`echo $pkg_version | sed s/[-,a-z,A-Z].*// | cut -d. -f2`