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path: root/pkgconfigdeps.sh
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#!/bin/bash

pkgconfig=/usr/bin/pkg-config
test -x $pkgconfig || {
    cat > /dev/null
    exit 0
}

[ $# -ge 1 ] || {
    cat > /dev/null
    exit 0
}

case $1 in
-P|--provides)
    while read filename ; do
    case "${filename}" in
    *.pc)
	# Assume that this file doesn't contain useful information.
    pcfiles=${pcfiles}" ${filename}"
    PKG_CONFIG_PATH=$PKG_CONFIG_PATH:$(dirname ${filename})
	;;
    esac
    done
	# Query the dependencies of the package.
	PKG_CONFIG_PATH=$PKG_CONFIG_PATH $pkgconfig --print-provides $pcfiles 2> /dev/null | while read n r v ; do
	    # We have a dependency.  Make a note that we need the pkgconfig
	    # tool for this package.
	    test -z "$v" && test -n "$r" && echo "Error with pkgconfig($n)" >&2 && exit 1
	    echo "pkgconfig($n)" "$r" "$v"
	done
	test $? -ne 0 && exit 1
	# The dependency on the pkgconfig package itself.
    ;;
-R|--requires)
    while read filename ; do
    case "${filename}" in
    *.pc)
    pcfiles=${pcfiles}" ${filename}"
    PKG_CONFIG_PATH=$PKG_CONFIG_PATH:$(dirname ${filename})
    esac
    done
    PKG_CONFIG_PATH=$PKG_CONFIG_PATH $pkgconfig --print-requires ${pcfiles} 2> /dev/null | while read n r v ; do
	    test -z "$v" && test -n "$r" && echo "Error with pkgconfig($n)" >&2 && exit 1
	    echo "pkgconfig($n)" "$r" "$v"
    done
    test $? -ne 0 && exit 1
    ;;
esac
exit 0