[packages] pciutils: Revert r19252's postinst changes, make $DEST a relative path

git-svn-id: svn://svn.openwrt.org/openwrt/packages@19255 3c298f89-4303-0410-b956-a3cf2f4a3e73

utils/pciutils/patches/102-compressed-ids.patch

@@ -0,0 +1,31 @@
+--- a/update-pciids.sh
++++ b/update-pciids.sh
+@@ -6,9 +6,8 @@ set -e
+ SRC="http://pciids.sourceforge.net/v2.2/pci.ids"
+ DEST=pci.ids
+ PCI_COMPRESSED_IDS=
+-GREP=grep
+ 
+-# if pci.ids is read-only (because the filesystem is read-only),
++# if pci.ids.gz is read-only (because the filesystem is read-only),
+ # then just skip this whole process.
+ if ! touch ${DEST} >/dev/null 2>&1 ; then
+ 	${quiet} || echo "${DEST} is read-only, exiting." 1>&2
+@@ -18,7 +17,7 @@ fi
+ if [ -n "$PCI_COMPRESSED_IDS" ] ; then
+ 	DECOMP="cat"
+ 	SRC="$SRC.gz"
+-	GREP=zgrep
++	DEST="$DEST.gz"
+ elif which bzip2 >/dev/null 2>&1 ; then
+ 	DECOMP="bzip2 -d"
+ 	SRC="$SRC.bz2"
+@@ -53,7 +52,7 @@ if ! $DECOMP <$DEST.new >$DEST.neww ; th
+ 	exit 1
+ fi
+ 
+-if ! $GREP >/dev/null "^C " $DEST.neww ; then
++if ! zcat $DEST.neww | grep >/dev/null "^C " ; then
+ 	echo >&2 "update-pciids: missing class info, probably truncated file"
+ 	exit 1
+ fi