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File: [cvs.NetBSD.org] / pkgsrc / mk / Attic / find-prefix.mk (download)

Revision 1.7, Sun Feb 10 10:30:58 2008 UTC (16 years, 2 months ago) by rillig
Branch: MAIN
CVS Tags: pkgsrc-2015Q3-base, pkgsrc-2015Q3, pkgsrc-2015Q2-base, pkgsrc-2015Q2, pkgsrc-2015Q1-base, pkgsrc-2015Q1, pkgsrc-2014Q4-base, pkgsrc-2014Q4, pkgsrc-2014Q3-base, pkgsrc-2014Q3, pkgsrc-2014Q2-base, pkgsrc-2014Q2, pkgsrc-2014Q1-base, pkgsrc-2014Q1, pkgsrc-2013Q4-base, pkgsrc-2013Q4, pkgsrc-2013Q3-base, pkgsrc-2013Q3, pkgsrc-2013Q2-base, pkgsrc-2013Q2, pkgsrc-2013Q1-base, pkgsrc-2013Q1, pkgsrc-2012Q4-base, pkgsrc-2012Q4, pkgsrc-2012Q3-base, pkgsrc-2012Q3, pkgsrc-2012Q2-base, pkgsrc-2012Q2, pkgsrc-2012Q1-base, pkgsrc-2012Q1, pkgsrc-2011Q4-base, pkgsrc-2011Q4, pkgsrc-2011Q3-base, pkgsrc-2011Q3, pkgsrc-2011Q2-base, pkgsrc-2011Q2, pkgsrc-2011Q1-base, pkgsrc-2011Q1, pkgsrc-2010Q4-base, pkgsrc-2010Q4, pkgsrc-2010Q3-base, pkgsrc-2010Q3, pkgsrc-2010Q2-base, pkgsrc-2010Q2, pkgsrc-2010Q1-base, pkgsrc-2010Q1, pkgsrc-2009Q4-base, pkgsrc-2009Q4, pkgsrc-2009Q3-base, pkgsrc-2009Q3, pkgsrc-2009Q2-base, pkgsrc-2009Q2, pkgsrc-2009Q1-base, pkgsrc-2009Q1, pkgsrc-2008Q4-base, pkgsrc-2008Q4, pkgsrc-2008Q3-base, pkgsrc-2008Q3, pkgsrc-2008Q2-base, pkgsrc-2008Q2, pkgsrc-2008Q1-base, pkgsrc-2008Q1, cwrapper, cube-native-xorg-base, cube-native-xorg
Changes since 1.6: +14 -11 lines 

Made the code easier to read.

# $NetBSD: find-prefix.mk,v 1.7 2008/02/10 10:30:58 rillig Exp $
#
# This is a "subroutine" that can be included to find the installation
# prefix of an installed package.
#
# Parameters:
#
# FIND_PREFIX
#	A list of <VARNAME>=<pattern> pairs, where
#
#	* <pattern> is a package wildcard pattern (see pkg_info(8)),
#	* <VARNAME> is the variable that will be set to the
#	  installation prefix for the package.
#
# Returns:
#
# <VARNAME>
#	The prefix of the corresponding package, or ${LOCALBASE}
#	if the package is not installed.
#
# Example:
#
# FIND_PREFIX:=	M4DIR=gm4
# .include "../../mk/find-prefix.mk"
# # ${M4DIR} now contains the installation prefix for the "gm4" package.
#

.for i in ${FIND_PREFIX}
.  for varname in ${i:C/=.*$//}
.    for pattern in ${i:C/^[^=]*=//}
.      if !defined(${varname})

# XXX: Is this *_DEFAULT variable really necessary? The default value
# can be easily embedded in the shell code. What if VARNAME is set to
# PKG_APACHE, for example?
#
${varname}_DEFAULT?=	${LOCALBASE}
_${varname}_cmd=		\
	${PKG_INFO} -qp ${pattern:Q} 2>/dev/null |			\
	{ read cmd arg;							\
	  case "$$arg" in						\
	  "")	${ECHO} ${${varname}_DEFAULT:Q} ;;			\
	  *)	${ECHO} "$$arg" ;;					\
	  esac; }
${varname}=		${_${varname}_cmd:sh}
.      endif
MAKEVARS+=	${varname}
.    endfor
.  endfor
.endfor