dhcpcd: security bump to version 6.4.3

configure: support builds using ccache

The configure script checks whether CC is executable by means of a check

'type $CC'. However, when using ccache, CC is normally set to "ccache gcc"

(using the appropriate paths). Such a compound string is not recognized by

type, however, and thus configure bails out.

This patch changes the check 'type $CC' with a compile test.

Signed-off-by: Thomas De Schampheleire <thomas.de.schampheleire@gmail.com>

Upstream status: backport of

http://roy.marples.name/projects/dhcpcd/info/5f4bf91142fceac502c478886aeb5079a184bb43

Note: a simplification of this patch was accepted upstream, but turns out to be

non-usable by the Xtensa architecture. This was also reported upstream and

should normally be reverted soon.

diff -r 66c8bdc88858 configure

--- a/configure	Sat Jun 21 16:54:30 2014 +0200

+++ b/configure	Sun Jun 29 15:42:08 2014 +0200

@@ -272,8 +272,20 @@

 fi

 echo "Using compiler .. $CC"

-if ! type "$CC" >/dev/null 2>&1; then

-	echo "$CC is not an executable"

+cat <<EOF >_test.c

+int main(void) {

+	return 0;

+}

+EOF

+_CC=true

+if $CC _test.c -o _test >/dev/null 2>&1; then

+	[ -x _test ] || _CC=false

+else

+	_CC=false

+fi

+rm -f _test.c _test

+if ! $_CC; then

+	echo "$CC does not create executables"

 	exit 1

 fi

 [ "$CC" != cc ] && echo "CC=	$CC" >>$CONFIG_MK

#

################################################################################

DHCPCD_VERSION = 6.4.0

DHCPCD_VERSION = 6.4.3

DHCPCD_SOURCE = dhcpcd-$(DHCPCD_VERSION).tar.bz2

DHCPCD_SITE = http://roy.marples.name/downloads/dhcpcd

DHCPCD_DEPENDENCIES = host-pkgconf