Commit 313b26f4 authored by Bill Spitzak's avatar Bill Spitzak Committed by Bryce Harrington

config: use simpler regexp syntax to get dot version

I wasted a lot of time before I figured out that I needed to add those
square brackets to get this to work. Sigh...
Reviewed-by: default avatarBryce Harrington <bryce@osg.samsung.com>
parent c45be3d2
......@@ -141,7 +141,7 @@ if test "x$enable_documentation" = "xyes"; then
AC_MSG_ERROR([Documentation build requested but graphviz's dot not found. Install graphviz or disable the documentation using --disable-documentation])
fi
AC_MSG_CHECKING([for compatible dot version])
dot_version=`$DOT -V 2>&1|$GREP -oP '(?<=version\W)@<:@0-9.@:>@*(?=\W(.*))'`
dot_version=`$DOT -V 2>&1|$GREP -o ['[0-9]*\.[0-9]*\.[0-9]*']`
AS_VERSION_COMPARE([$dot_version], [2.26.0],
[AC_MSG_RESULT([no])
AC_MSG_ERROR([Graphviz dot $dot_version too old. Graphviz 2.26+ required for documentation build. Install required graphviz version or disable the documentation using --disable-documentation])],
......
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