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authorNicolas Williams <nico@cryptonector.com>2014-08-14 03:31:25 -0500
committerNicolas Williams <nico@cryptonector.com>2014-08-14 03:31:25 -0500
commit287e2c96ed795ebd57875a855d2ed5894311ecbb (patch)
treeb8d3d536b8650ce6ec29a68057b8e4f316a78f09 /m4
parentf8d94785175c5b95d774ef726d1b35b2eca7d80b (diff)
BSD sed lacks -r; fix #551
Diffstat (limited to 'm4')
-rw-r--r--m4/ax_prog_bison_version.m42
1 files changed, 1 insertions, 1 deletions
diff --git a/m4/ax_prog_bison_version.m4 b/m4/ax_prog_bison_version.m4
index 91652fe9..e3b52920 100644
--- a/m4/ax_prog_bison_version.m4
+++ b/m4/ax_prog_bison_version.m4
@@ -48,7 +48,7 @@ AC_DEFUN([AX_PROG_BISON_VERSION],[
changequote(<<,>>)
bison_version=`$YACC --version 2>&1 \
| $GREP bison \
- | $SED -rn -e 's/bison .* ([0-9]+([.][0-9])+)+/\1/p'`
+ | $SED -e 's/^[^0-9]*//' -e 's/[^0-9]*$//'`
changequote([,])
AC_MSG_RESULT($bison_version)