Introduce new "meson" USES.

This uses will handling building software that uses the meson
build system. Expand the option framework to handle MESON options.

Approved by:	portmgr (swills@)

Differential Revision:	https://reviews.freebsd.org/D104091

1 files changed, 68 insertions, 0 deletions

diff --git a/Mk/Uses/meson.mk b/Mk/Uses/meson.mk
new file mode 100644
index 000000000000..b3d4e0aca837
--- /dev/null
+++ b/Mk/Uses/meson.mk
@@ -0,0 +1,68 @@
+# $FreeBSD$
+#
+# 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_BUILD_DIR	- Path to the build directory
+#			Default: ${WRKSRC}/_build
+#
+# MAINTAINER: gnome@FreeBSD.org
+
+.if !defined(_INCLUDE_USES_MESON_MK)
+_INCLUDE_USES_MESON_MK=	yes
+
+# Sanity check
+.if !empty(meson_ARGS)
+IGNORE=	Incorrect 'USES+= meson:${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
+
+# 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_BUILD_DIR?=	_build
+
+# Add meson build dir at the end.
+CONFIGURE_ARGS+=	${MESON_BUILD_DIR}
+
+.endif #!defined(_INCLUDE_USES_MESON_MK)