Flavorize and modernize Emacs ports

- Convert USE_EMACS to USES=emacs
- Remove editors/emacs-nox11 (refer to nox flavors of editors/emacs and
  editors/emacs-devel)
- Permit default Emacs flavor to be specified in make.conf
- Rename japanese/migemo-emacs23 to japanese/migemo-emacs
- Update and simplify audio/emms and fix build on FreeBSD 10 [1]
- Update databases/bbdd and fix build on FreeBSD 10 [1]
- Update editors/emacs-devel
- Ensure Makefile shell commands that change directory are executed in a
  subshell
- Silence some portlint warnings

[1] By not depending on base texinfo

PR:		225404
Reviewed by:	antoine
Approved by:	portmgr (mat) ashish (maintainer)
Differential Revision:	https://reviews.freebsd.org/D13506

1 files changed, 133 insertions, 0 deletions

diff --git a/Mk/Uses/emacs.mk b/Mk/Uses/emacs.mk
new file mode 100644
index 000000000000..0a2166524882
--- /dev/null
+++ b/Mk/Uses/emacs.mk
@@ -0,0 +1,133 @@
+# $FreeBSD$
+#
+# Provide support for ports requiring Emacs.  This includes flavors with proper
+# dependencies and useful variables.
+#
+# Feature:		emacs
+# Usage:		USES=emacs or USES=emacs:args
+# Valid ARGS:	build, run
+#
+# build			Indicates that Emacs is needed at build time.
+# run			Indicates that Emacs is needed at run time.
+#
+# If build and run are omitted from the argument list, Emacs will be added to
+# BUILD_DEPENDS and RUN_DEPENDS.  EMACS_NO_DEPENDS can be set to prevent both
+# Emacs dependencies.
+#
+# Variables, which can be set in make.conf:
+# DEFAULT_VERSIONS+=          The default flavor for Emacs ports can be added to
+#                             DEFAULT_VERSIONS.  For example,
+#                             DEFAULT_VERSIONS+= emacs=nox
+#                             Valid flavors: full canna nox devel_full devel_nox
+#                             Flavors specified on the command line take precedence.
+#
+# Variables, which can be set by ports:
+# EMACS_FLAVORS_EXCLUDE:      Do NOT build these Emacs flavors.
+#                             If EMACS_FLAVORS_EXCLUDE is not define then all
+#                             valid Emacs flavors are assumed.
+#
+# EMACS_NO_DEPENDS:           Do NOT add build or run dependencies on Emacs.
+#
+# Variables, which can be read by ports:
+# EMACS_CMD:                  Emacs command with full path (e.g. /usr/local/bin/emacs-25.3)
+# EMACS_FLAVOR:               Used for dependencies (e.g. BUILD_DEPENDS= dash.el${EMACS_PKGNAMESUFFIX}>0:devel/dash@${EMACS_FLAVOR})
+# EMACS_LIBDIR:               Emacs Library directory without ${PREFIX} (e.g. share/emacs)
+# EMACS_LIBDIR_WITH_VER:      Library directory without ${PREFIX} including version (e.g. share/emacs/25.3)
+# EMACS_MAJOR_VER:            Emacs major version (e.g. 25)
+# EMACS_PKGNAMESUFFIX:        PKGNAMESUFFIX to distinguish Emacs flavors
+# EMACS_SITE_LISPDIR:         Emacs site-lisp directory without ${PREFIX} (e.g. share/emacs/site-lisp)
+# EMACS_VER:                  Emacs version (e.g. 25.3)
+# EMACS_VERSION_SITE_LISPDIR: Include version (e.g. share/emacs/25.3/site-lisp)
+#-------------------------------------------------------------------------------
+#
+# MAINTAINER:	emacs@FreeBSD.org
+
+.if !defined(_INCLUDE_USES_EMACS_MK)
+_INCLUDE_USES_EMACS_MK=	yes
+
+# Make sure that no dependency or some other environment variable
+# pollutes the build/run dependency detection
+.undef _EMACS_BUILD_DEP
+.undef _EMACS_RUN_DEP
+_EMACS_ARGS=		${emacs_ARGS:S/,/ /g}
+.if ${_EMACS_ARGS:Mbuild}
+_EMACS_BUILD_DEP=	yes
+_EMACS_ARGS:=		${_EMACS_ARGS:Nbuild}
+.endif
+.if ${_EMACS_ARGS:Mrun}
+_EMACS_RUN_DEP=	yes
+_EMACS_ARGS:=		${_EMACS_ARGS:Nrun}
+.endif
+
+# If the port does not specify a build or run dependency, and does not define
+# EMACS_NO_DEPENDS, assume both dependencies are required.
+.if !defined(_EMACS_BUILD_DEP) && !defined(_EMACS_RUN_DEP) && \
+	!defined(EMACS_NO_DEPENDS)
+_EMACS_BUILD_DEP=	yes
+_EMACS_RUN_DEP=		yes
+.endif
+
+.if defined(_EMACS_RUN_DEP)
+FLAVORS=	full canna nox devel_full devel_nox
+.for flavor in ${EMACS_FLAVORS_EXCLUDE}
+FLAVORS:=	${FLAVORS:N${flavor}}
+.endfor
+.else
+FLAVORS=	full
+.endif
+
+.if empty(FLAVOR)
+.if defined(EMACS_DEFAULT)
+FLAVOR=	${EMACS_DEFAULT}
+.else
+FLAVOR=	${FLAVORS:[1]}
+.endif
+.endif
+EMACS_FLAVOR=	${FLAVOR}
+
+.if ${FLAVOR:Mdevel*}
+EMACS_VER=			27.0.50
+EMACS_PORTDIR=		editors/emacs-devel
+.else
+EMACS_VER=			25.3
+EMACS_PORTDIR=		editors/emacs
+.endif
+
+EMACS_MAJOR_VER=	${EMACS_VER:C/\..*//}
+EMACS_LIBDIR=		share/emacs
+EMACS_LIBDIR_WITH_VER=	share/emacs/${EMACS_VER}
+EMACS_PORT_NAME=	emacs${EMACS_MAJOR_VER}
+
+.if ${FLAVOR:M*nox}
+EMACS_PKGNAMESUFFIX=		-${EMACS_PORT_NAME}_nox
+.elif ${FLAVOR:Mcanna}
+EMACS_PKGNAMESUFFIX=		-${EMACS_PORT_NAME}_canna
+.else
+EMACS_PKGNAMESUFFIX=		-${EMACS_PORT_NAME}
+.endif
+
+EMACS_CMD=	${PREFIX}/bin/emacs-${EMACS_VER}
+EMACS_SITE_LISPDIR=	${EMACS_LIBDIR}/site-lisp
+EMACS_VERSION_SITE_LISPDIR=	${EMACS_LIBDIR_WITH_VER}/site-lisp
+
+.if defined(_EMACS_BUILD_DEP)
+BUILD_DEPENDS+=		${EMACS_CMD}:${EMACS_PORTDIR}@${EMACS_FLAVOR:C/devel_//}
+.endif
+.if defined(_EMACS_RUN_DEP)
+RUN_DEPENDS+=	${EMACS_CMD}:${EMACS_PORTDIR}@${EMACS_FLAVOR:C/devel_//}
+.endif
+
+MAKE_ARGS+=	EMACS=${EMACS_CMD}
+SCRIPTS_ENV+=	EMACS_LIBDIR=${EMACS_LIBDIR} \
+		EMACS_VER=${EMACS_VER} \
+		EMACS_LIBDIR_WITH_VER=${EMACS_LIBDIR_WITH_VER} \
+		EMACS_SITE_LISPDIR=${EMACS_SITE_LISPDIR} \
+		EMACS_VERSION_SITE_LISPDIR=${EMACS_VERSION_SITE_LISPDIR}
+
+PLIST_SUB+=	EMACS_LIBDIR=${EMACS_LIBDIR} \
+		EMACS_VER=${EMACS_VER} \
+		EMACS_LIBDIR_WITH_VER=${EMACS_LIBDIR_WITH_VER} \
+		EMACS_SITE_LISPDIR=${EMACS_SITE_LISPDIR} \
+		EMACS_VERSION_SITE_LISPDIR=${EMACS_VERSION_SITE_LISPDIR}
+
+.endif # _INCLUDE_USES_EMACS_MK