--- b/Mk/Uses/meson.mk	
+++ b/Mk/Uses/meson.mk	
@@ -1,71 +1,74 @@ 
 # $FreeBSD$
 #
 # Provide support for Meson based projects
 #
 # Feature:		meson
 # Usage:		USES=meson
 #
 # The following files are bundled in source tar files.
 # meson.build		- Instructions for meson like autoconf configure,
 #			there is no changeable parts in the file.
 # meson_options.txt	- All the options meson understands
 #
 # Variables for ports:
 # MESON_ARGS		- Arguments passed to meson
 #			format: -Denable_foo=true
+# MESON_SOURCE_PATH	- Path to the source directory
+#			Default: ${WRKSRC}
 # MESON_BUILD_DIR	- Path to the build directory relative to ${WRKSRC}
 #			Default: _build
 #
 # MAINTAINER: gnome@FreeBSD.org
 
 .if !defined(_INCLUDE_USES_MESON_MK)
 _INCLUDE_USES_MESON_MK=	yes
 
 # Sanity check
 .if !empty(meson_ARGS)
 IGNORE=	Incorrect 'USES+= meson:${meson_ARGS}'. meson takes no arguments
 .endif
 
 BUILD_DEPENDS+=		meson:devel/meson
 
 # meson uses ninja
 .include "${USESDIR}/ninja.mk"
 
 # meson might have issues with non-unicode locales
 USE_LOCALE?=	en_US.UTF-8
 
 CONFIGURE_ARGS+=	--prefix ${PREFIX} \
 			--mandir man \
 			--infodir ${INFO_PATH}
 
 # meson has it own strip mechanic
 INSTALL_TARGET=		install
 
 # should we have strip separate from WITH_DEBUG?
 .if defined(WITH_DEBUG)
 CONFIGURE_ARGS+=	--buildtype debug
 .else
 CONFIGURE_ARGS+=	--buildtype release \
 			--strip
 .endif
 
 HAS_CONFIGURE=		yes
 CONFIGURE_CMD=		meson
 # Pull in manual set settings and from options
 CONFIGURE_ARGS+=	${MESON_ARGS}
 
 BUILD_WRKSRC=		${WRKSRC}/${MESON_BUILD_DIR}
 
 INSTALL_WRKSRC=		${WRKSRC}/${MESON_BUILD_DIR}
 
 TEST_WRKSRC=		${WRKSRC}/${MESON_BUILD_DIR}
 TEST_TARGET=		test
 
+MESON_SOURCE_PATH?=	${WRKSRC}
 MESON_BUILD_DIR?=	_build
 
 CONFIGURE_LOG=		${MESON_BUILD_DIR}/meson-logs/meson-log.txt
 
-# Add meson build dir at the end.
-CONFIGURE_ARGS+=	${MESON_BUILD_DIR}
+# Add meson source path and build dir at the end.
+CONFIGURE_ARGS+=	${MESON_SOURCE_PATH} ${MESON_BUILD_DIR}
 
 .endif #!defined(_INCLUDE_USES_MESON_MK)