w3m-image with imlib2 support

[adr <adr%SDF.ORG@localhost>]

Hi,

w3m-image can't be built with imlib2 support because w3m's Makefile
lacks pkg_config in USE_TOOLS. I would recommend to change this to
the default instead of gtk2.

Regards,
adr
============================
--- Makefile.common.orig	2022-10-05 13:19:52.449524052 +0000
+++ Makefile.common	2022-10-05 13:20:09.895956052 +0000
@@ -25,7 +25,7 @@
 W3M_PKGVERS=	${W3M_VERS:S/+git/.0./}

 # For w3mman, xface2xpm, cgi scripts.
-USE_TOOLS+=	perl:run pax
+USE_TOOLS+=	pkg-config perl:run pax

 DOCDIR=		share/doc/w3m