[PATCH] wxwidgets: enable extended regexps

[Danny Milosavljevic]

Hi,

the following patch enables "extended" regexps as required by kicad.
It could conceivably inadvertedly change behaviour of other wxwidgets apps. 
What do you think? Is this the right way?

diff --git a/gnu/packages/wxwidgets.scm b/gnu/packages/wxwidgets.scm
index b49fb2f..65adfc1 100644
--- a/gnu/packages/wxwidgets.scm
+++ b/gnu/packages/wxwidgets.scm
@@ -61,7 +61,7 @@
      `(("pkg-config" ,pkg-config)))
     (arguments
      '(#:configure-flags
-       '("--with-regex=sys" "--with-libmspack" "--with-sdl")
+       '("--with-regex" "--with-libmspack" "--with-sdl")
        #:make-flags
        (list (string-append "LDFLAGS=-Wl,-rpath="
                             (assoc-ref %outputs "out") "/lib"))