Adding wxGTK.mk, main purpose for migration to wxGTK30 from wxGTK28

for the memoent:
  Because multiple versions of wxGTK cannot currently coexist, the
strategy is to use a single version, with each package building with
it if possible and failing otherwise.
Thanks gdt@ for comments and corrections.

1 files changed, 62 insertions, 0 deletions

diff --git a/mk/wxGTK.mk b/mk/wxGTK.mk
new file mode 100644
index 00000000000..9de7e64485d
--- /dev/null
+++ b/mk/wxGTK.mk
@@ -0,0 +1,62 @@
+# $NetBSD: wxGTK.mk,v 1.1 2015/11/17 13:42:35 mef Exp $
+#
+# This Makefile fragment is meant to be included by packages that
+# require a wxGTK library.  wxGTK.mk will:
+#
+#	* set WXGTKBASE to the directory of wxGTK package
+#	* set WXGTK_TYPE to the version of wxGTK used.
+#
+# Because multiple versions of wxGTK cannot currently coexist, the
+# strategy is to use a single version, with each package building with
+# it if possible and failing otherwise.
+#
+# There are two variables that can be used to influence the selection of
+# the version of wxGTK.
+#
+# WXGTK_DEFAULT is a user-settable variable whose value is the default
+#	version of wxGTK, for example WXGTK28 or WXGTK30.
+#
+# WXGTK_ACCEPTED is a package-settable list of wxGTK versions
+#	that may be used by the package.
+#
+
+MK_WXGTK_BUILDLINK3_MK:=	${MK_WXGTK_BUILDLINK3_MK}+
+
+.include "../../mk/bsd.fast.prefs.mk"
+
+.if !empty(MK_WXGTK_BUILDLINK3_MK:M+)
+
+# This is an exhaustive list of all of the versions of wxGTK
+# that may be used.
+#
+_WXGTK_PKGS?=	WXGTK28 WXGTK30
+
+WXGTK_DEFAULT?=	WXGTK28
+WXGTK_ACCEPTED?=	${_WXGTK_PKGS}
+
+_WXGTK_DEFAULT=	${WXGTK_DEFAULT}
+_WXGTK_ACCEPTED=	${WXGTK_ACCEPTED}
+
+_WXGTK_TYPE?=	${_WXGTK_DEFAULT}
+
+.  if !empty(_WXGTK_ACCEPTED:M${_WXGTK_TYPE})
+WXGTK_TYPE=	${_WXGTK_TYPE}
+.  else
+WXGTK_TYPE=	none
+.  endif
+
+BUILD_DEFS+=		WXGTK_DEFAULT
+BUILD_DEFS_EFFECTS+=	WXGTKBASE WXGTK_TYPE
+
+.if ${WXGTK_TYPE} == "none"
+PKG_FAIL_REASON=	\
+	"${_WXGTK_TYPE} is not an acceptable version of wxGTK for ${PKGNAME}."
+.elif ${WXGTK_TYPE} == "WXGTK28"
+.  include "../../x11/wxGTK28/buildlink3.mk"
+.elif ${WXGTK_TYPE} == "WXGTK30"
+.  include "../../x11/wxGTK30/buildlink3.mk"
+.endif
+
+WXGTKBASE=	${BUILDLINK_PREFIX.${WXGTK_TYPE}}
+
+.endif	# MK_WXGTK_BUILDLINK3_MK