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File: [cvs.NetBSD.org] / pkgsrc / mk / termcap.buildlink3.mk (download)

Revision 1.7, Fri Mar 20 19:25:01 2009 UTC (10 years, 7 months ago) by joerg
Branch: MAIN
CVS Tags: pkgsrc-2009Q4-base, pkgsrc-2009Q4, pkgsrc-2009Q3-base, pkgsrc-2009Q3, pkgsrc-2009Q2-base, pkgsrc-2009Q2, pkgsrc-2009Q1-base, pkgsrc-2009Q1
Changes since 1.6: +2 -4 lines

Simply and speed up buildlink3.mk files and processing.
This changes the buildlink3.mk files to use an include guard for the
recursive include. The use of BUILDLINK_DEPTH, BUILDLINK_DEPENDS,
BUILDLINK_PACKAGES and BUILDLINK_ORDER is handled by a single new
variable BUILDLINK_TREE. Each buildlink3.mk file adds a pair of
enter/exit marker, which can be used to reconstruct the tree and
to determine first level includes. Avoiding := for large variables
(BUILDLINK_ORDER) speeds up parse time as += has linear complexity.
The include guard reduces system time by avoiding reading files over and
over again. For complex packages this reduces both %user and %sys time to
half of the former time.

# $NetBSD: termcap.buildlink3.mk,v 1.7 2009/03/20 19:25:01 joerg Exp $
#
# This Makefile fragment is meant to be included by packages that require
# a termcap implementation that supports the basic termcap functions:
#
#	tgetent, tgetstr, tgetflag, tgetnum, tgoto, tputs
#
# === Variables set by this file ===
#
# TERMCAP_TYPE
#	The name of the selected termcap implementation.

TERMCAP_BUILDLINK3_MK:=	${TERMCAP_BUILDLINK3_MK}+

.include "bsd.fast.prefs.mk"

.if !empty(TERMCAP_BUILDLINK3_MK:M+)

# _TERMCAP_TYPES is an exhaustive list of all of the termcap
#	implementations that may be found.
#
_TERMCAP_TYPES?=	curses termcap termlib tinfo

CHECK_BUILTIN.termcap:=	yes
.  include "termcap.builtin.mk"
CHECK_BUILTIN.termcap:=	no

.if !empty(USE_BUILTIN.termcap:M[yY][eE][sS])
.  if defined(BUILTIN_LIBNAME.termcap)
TERMCAP_TYPE=	${BUILTIN_LIBNAME.termcap}
.  else
TERMCAP_TYPE=	none
.  endif
.else
TERMCAP_TYPE=	curses		# pkgsrc termcap is curses
.endif
BUILD_DEFS_EFFECTS+=	TERMCAP_TYPE

# Most GNU configure scripts will try finding every termcap implementation,
# so prevent them from finding any except for the one we decide upon.
#
# There is special handling for packages that can be provided by pkgsrc,
# e.g. curses -- see termcap.builtin.mk for details.
#
.  for _tcap_ in ${_TERMCAP_TYPES:Ntermcap:Ncurses}
.    if empty(TERMCAP_TYPE:M${_tcap_})
BUILDLINK_TRANSFORM+=		rm:-l${_tcap_}
.    endif
.  endfor
BUILDLINK_TRANSFORM+=		l:termcap:${BUILDLINK_LIBNAME.termcap}

.endif	# TERMCAP_BUILDLINK3_MK

.if ${TERMCAP_TYPE} == "none"
PKG_FAIL_REASON=	"No usable termcap library found on the system."
.elif (${TERMCAP_TYPE} == "termlib") || \
      (${TERMCAP_TYPE} == "termcap") || \
      (${TERMCAP_TYPE} == "tinfo")
BUILDLINK_TREE+=		termcap -termcap
BUILDLINK_LIBNAME.termcap?=	${BUILTIN_LIBNAME.termcap}
BUILDLINK_LDADD.termcap?=	${BUILDLINK_LIBNAME.termcap:S/^/-l/:S/^-l$//}
BUILDLINK_BUILTIN_MK.termcap=	../../mk/termcap.builtin.mk
.elif ${TERMCAP_TYPE} == "curses"
.  include "../../mk/curses.buildlink3.mk"
BUILDLINK_PREFIX.termcap?=	${BUILDLINK_PREFIX.curses}
BUILDLINK_LIBNAME.termcap?=	${BUILDLINK_LIBNAME.curses}
BUILDLINK_LDADD.termcap?=	${BUILDLINK_LDADD.curses}
.endif