build: remove non-portable rule

> Makefile.am:97: `%'-style pattern rules are a GNU make extension

(iptables still requires GNU make for extensions/, because it is
so much easier to write.)

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>

diff --git a/Makefile.am b/Makefile.am
index d5f887567507ef93cf876c9694f0b0fb3be8d82e..4852d2a108b29949019260ac11a61e8e82d02076 100644 (file)
--- a/Makefile.am
+++ b/Makefile.am
@@ -94,9 +94,6 @@ iptables.8: ${srcdir}/iptables.8.in extensions/matches4.man extensions/targets4.
 ip6tables.8: ${srcdir}/ip6tables.8.in extensions/matches6.man extensions/targets6.man
        ${AM_VERBOSE_GEN} sed -e 's/@PACKAGE_AND_VERSION@/${PACKAGE} ${PACKAGE_VERSION}/g' -e '/@MATCH@/ r extensions/matches6.man' -e '/@TARGET@/ r extensions/targets6.man' $< >$@;
 
-extensions/%:
-       ${MAKE} ${AM_MAKEFLAGS} -C $(@D) $(@F)
-
 pkgconfig_DATA = xtables.pc
 
 .PHONY: tarball