pkgsrc/mk/find-prefix.mk
jlam 6525163581 Extend find-prefix.mk so that we can specify a package wildcard instead
of just ${PKGBASE}, e.g. M4DIR=m4>=1.0 will set M4DIR to the installation
prefix of m4 if it matches "m4>=1.0", otherwise it will set M4DIR to
${M4DIR_DEFAULT}.
2005-11-28 05:54:17 +00:00

32 lines
1 KiB
Makefile

# $NetBSD: find-prefix.mk,v 1.4 2005/11/28 05:54:17 jlam Exp $
#
# This is a "subroutine" that can be included to find the installation
# prefix of a package.
#
# The input variable is FIND_PREFIX, which is a list of VARNAME=<pattern>
# pairs, where "VARNAME" is the variable that will be set to the
# installation prefix for the package, and <pattern> is a package
# wildcard pattern used to match the installed package (see pkg_info(8)).
#
# An example use is:
#
# FIND_PREFIX:= M4DIR=gm4
# .include "../../mk/find-prefix.mk"
# # ${M4DIR} now contains the installation prefix for the "gm4" package
#
.for _def_ in ${FIND_PREFIX}
. if !defined(${_def_:C/=.*$//})
${_def_:C/=.*$//}_DEFAULT?= ${LOCALBASE}
_${_def_:C/=.*$//}_cmd= \
${PKG_INFO} -qp ${_def_:C/^[^=]*=//:Q} 2>/dev/null | \
{ read cmd arg; \
case "$$arg" in \
"") ${ECHO} ${${_def_:C/=.*$//}_DEFAULT:Q} ;; \
*) ${ECHO} "$$arg" ;; \
esac; }
${_def_:C/=.*$//}= ${_${_def_:C/=.*$//}_cmd:sh}
. endif
MAKEVARS+= ${_def_:C/=.*$//}
.endfor
.undef _def_