[libvirt] boostrap: gzip version check problem on FreeBSD

[Eric Blake]

[adding bug-gnulib]

On 11/12/2010 01:24 PM, Matthias Bolte wrote:
> boostrap.conf lists gzip as build dependency. bootstrap then tries to
> get it's version number using a get_version() function that executes
> 'gzio --version' and tries to parse the result.
> 
> The sed expression expects the version number to contain a dot as gzip
> outputs it on Linux:
> 
> $ gzip --version
> gzip 1.3.12
> 
> But on FreeBSD it outputs this:
> 
> # gzip --version
> FreeBSD gzip 20100407
> 
> Therefore, the sed expression should be relaxed, or bootstrap should
> not try to parse the version number when it doesn't need it because
> gzip is listed with '-' as version requirement.

I'm pushing this to fix the gnulib side of things; a libvirt patch to
use the latest gnulib will follow shortly.

diff --git i/ChangeLog w/ChangeLog
index e348fe2..8a9d7b6 100644
--- i/ChangeLog
+++ w/ChangeLog
@@ -1,5 +1,11 @@
 2010-11-12  Eric Blake  <eblake at redhat.com>

+	bootstrap: allow FreeBSD gzip
+	* build-aux/bootstrap (get_version): Parse FreeBSD gzip version,
+	which has no '.' and goes to stderr.
+	* build-aux/bootstrap.conf (buildreq): Improve the sample file.
+	Reported by Matthias Bolte.
+
 	maintainer-makefile: check for i18n setup
 	* top/maint.mk (sc_bindtextdomain): Check for evidence that _()
 	will likely work.
diff --git i/build-aux/bootstrap w/build-aux/bootstrap
index 8c8d777..5278e8e 100755
--- i/build-aux/bootstrap
+++ w/build-aux/bootstrap
@@ -1,6 +1,6 @@
 #! /bin/sh
 # Print a version string.
-scriptversion=2010-10-08.16; # UTC
+scriptversion=2010-11-12.20; # UTC

 # Bootstrap this package from checked-out sources.

@@ -345,11 +345,11 @@ get_version() {

   $app --version 2>&1 |
   sed -n '# extract version within line
-          s/.*[v ]\{1,\}\([0-9]\{1,\}\.[.a-z0-9-]*\).*/\1/
+          s/.*[v ]\{1,\}\([0-9]\{1,\}\(\.[.a-z0-9-]*\)*\).*/\1/
           t done

           # extract version at start of line
-          s/^\([0-9]\{1,\}\.[.a-z0-9-]*\).*/\1/
+          s/^\([0-9]\{1,\}\(\.[.a-z0-9-]*\)\)*.*/\1/
           t done

           d
diff --git i/build-aux/bootstrap.conf w/build-aux/bootstrap.conf
index 75cf6ff..2bb60e2 100644
--- i/build-aux/bootstrap.conf
+++ w/build-aux/bootstrap.conf
@@ -57,3 +57,11 @@ if test $gettext_external = 1; then
       m4/xsize.m4
   '
 fi
+
+# Build prerequisites
+buildreq="\
+autoconf   2.59
+automake   1.9.6
+git        1.5.5
+tar        -
+"


-- 
Eric Blake   eblake at redhat.com    +1-801-349-2682
Libvirt virtualization library http://libvirt.org

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