Added a procedure to determine the build options of a package. This file

can be used instead of writing the same code in every package.

1 files changed, 39 insertions, 0 deletions

diff --git a/mk/pkg-build-options.mk b/mk/pkg-build-options.mk
new file mode 100644
index 00000000000..e288e2bb243
--- /dev/null
+++ b/mk/pkg-build-options.mk
@@ -0,0 +1,39 @@
+# $NetBSD: pkg-build-options.mk,v 1.1 2007/03/18 11:09:32 rillig Exp $
+#
+# This procedure determines the PKG_OPTIONS that have been in effect
+# when the package ${pkg} has been built. When the package is not yet
+# installed, the current PKG_OPTIONS are queried.
+#
+# Parameters:
+#	pkgbase
+#		The basename of the package.
+#
+# Returns:
+#	PKG_BUILD_OPTIONS.${pkgbase}
+#		The build options of the package.
+#
+# Example:
+#	pkgbase := wine
+#	.include "../../mk/pkg-build-options.mk"
+#
+# TODO: Query the installed package if it exists.
+#
+
+.if defined(BUILDLINK_DEPTH) && !empty(BUILDLINK_DEPTH)
+.  for b in ${pkgbase}
+.    if !defined(PKG_BUILD_OPTIONS.${b})
+PKG_BUILD_OPTIONS.${b} != \
+	cd ${BUILDLINK_PKGSRCDIR.${b}} \
+	&& ${MAKE} ${MAKEFLAGS} \
+		show-var VARNAME=PKG_OPTIONS
+
+MAKEFLAGS+=	PKG_BUILD_OPTIONS.${b}=${PKG_BUILD_OPTIONS.${b}:Q}
+.    endif
+
+MAKEVARS+=	PKG_BUILD_OPTIONS.${b}
+.  endfor
+.else
+.  for b in ${pkgbase}
+PKG_FAIL_REASON+=	"[pkg-build-options.mk] This file may only be included from a buildlink3.mk file (pkgbase=${b})."
+.  endfor
+.endif