Change the way USES is handled:

- Loop over USES twice, once to define all *_ARGS variables and once to
  include Uses/*.mk.  This allows all Uses/*.mk to examine arguments given
  to other USES entries.
- Always define *_ARGS (possibly empty) and replace commas with spaces.

Similar for _USES_POST.

Adjust all Uses/*.mk:
- defined(u_ARGS) becomes !empty(u_ARGS)
- Eliminate helper variables like _*_ARGS=${*_ARGS:C/,/ /g}
- Some Uses/*.mk used ":" as argument separator instead of ",", but no port
  used this form
- Uses/cran.mk: remove unused variable VALID_ARGS and USES+=fortran which
  has no effect
- Uses/twisted.mk: simplify handling of the case where neither "build" nor
  "run" arguments have been specified

PR:		193931
Exp-run by:	antoine
Approved by:	portmgr (antoine)

1 files changed, 8 insertions, 13 deletions

diff --git a/Mk/Uses/tcl.mk b/Mk/Uses/tcl.mk
index fa3528a37ec..74a831d0fbe 100644
--- a/Mk/Uses/tcl.mk
+++ b/Mk/Uses/tcl.mk
@@ -86,29 +86,24 @@ IGNORE=	Invalid tcltk version ${TCLTK_DEFAULT}
 _TCLTK_PORT?=	tcl
 
 #
-# Build a make(1)-friendly list of arguments (i.e., space separated).
-#
-_TCL_ARGS=	${tcl_ARGS:S/,/ /g}
-
-#
 # Parse a ver+ argument.
 #
-.if ${_TCL_ARGS:M*+}
-_TCLTK_MIN_VERSION:=	${_TCL_ARGS:M*+:S/+//}
+.if ${tcl_ARGS:M*+}
+_TCLTK_MIN_VERSION:=	${tcl_ARGS:M*+:S/+//}
 _TCLTK_WANTED_VERSIONS:=${_TCLTK_DEFAULT_VERSION}
 .endif
 
 #
 # Parse one or more ver arguments.
 #
-.if ${_TCL_ARGS:M8[4-6]}
-_TCLTK_WANTED_VERSIONS:=${_TCL_ARGS:M8[4-6]}
+.if ${tcl_ARGS:M8[4-6]}
+_TCLTK_WANTED_VERSIONS:=${tcl_ARGS:M8[4-6]}
 .endif
 
 #
 # It makes little sense to specify both the wrapper and a specific version.
 #
-.if ${_TCL_ARGS:Mwrapper} && defined(_TCLTK_WANTED_VERSIONS)
+.if ${tcl_ARGS:Mwrapper} && defined(_TCLTK_WANTED_VERSIONS)
 IGNORE=	USES=${_TCLTK_PORT}: it is not possible to specify both a version and the wrapper: ${tcl_ARGS}
 .endif
 
@@ -175,7 +170,7 @@ _TCLTK_RUN_DEPENDS=
 _TCLTK_LIB_DEPENDS=
 
 # Construct the correct dependency lines (wrapper)
-.if ${_TCL_ARGS:Mwrapper}
+.if ${tcl_ARGS:Mwrapper}
 .  if ${_TCLTK_PORT} == "tcl"
 _TCLTK_WRAPPER_PORT=	tclsh:${PORTSDIR}/lang/tcl-wrapper
 .  elif ${_TCLTK_PORT} == "tk"
@@ -192,10 +187,10 @@ _TCLTK_EXE_LINE=	wish${TK_VER}:${PORTSDIR}/x11-toolkits/tk${_TCLTK_WANTED_VERSIO
 _TCLTK_LIB_LINE=	libtk${TK_SHLIB_VER}.so:${PORTSDIR}/x11-toolkits/tk${_TCLTK_WANTED_VERSION}
 .endif
 
-.if ${_TCL_ARGS:Mbuild}
+.if ${tcl_ARGS:Mbuild}
 BUILD_DEPENDS+=	${_TCLTK_WRAPPER_PORT} \
 		${_TCLTK_EXE_LINE}
-.elif ${_TCL_ARGS:Mrun}
+.elif ${tcl_ARGS:Mrun}
 RUN_DEPENDS+=	${_TCLTK_WRAPPER_PORT} \
 		${_TCLTK_EXE_LINE}
 .else