On Fri, Mar 4, 2011 at 10:50 AM, Jeremy Huddleston <[email protected]> wrote: > How do I quote []s in m4? I've tried escaping with \, 's, "s, ... I'm out of > tricks... I'm trying to update the poll() checks in libxcb and libXt to > allow poll on darwin11, but the []s are getting stripped. darwin[789]* is > becoming darwin789*, and the \([^ ]*\) in sed is becoming \(^ *\) ... > > Here's what I want to do: > > case $host_os in > # darwin through Snow Leopard has poll() but can't be used to poll > character devices. > darwin[789]*|darwin10*) ;; > darwin*) > _ac_xorg_macosx_version_min=`echo $CPPFLAGS $CFLAGS | sed > 's/^.*-mmacosx-version-min=\([^ ]*\).*$/\1/'` > if test x$_ac_xorg_macosx_version_min = x ; then > _ac_xorg_macosx_version_min=$MACOSX_DEPLOYMENT_TARGET > fi > case $_ac_xorg_macosx_version_min in > 10.[0123456]|10.[0123456].*) ;; > *) > AC_CHECK_FUNC(poll, [AC_DEFINE(USE_POLL, 1, > [poll() function is available])], ) > ;; > esac > unset _ac_xorg_macosx_version_min > ;; > *) > AC_CHECK_FUNC(poll, [AC_DEFINE(USE_POLL, 1, [poll() function > is available])], ) > ;; > esac
Normally you can just double up the [[, but if you really need it you can use @<:@ and @:>@. I used them in mesa's configure.ac if you want to have a look. -- Dan _______________________________________________ [email protected]: X.Org development Archives: http://lists.x.org/archives/xorg-devel Info: http://lists.x.org/mailman/listinfo/xorg-devel
