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ppp: compile fix: unset FILTER variable in Makefile

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If the environment variable FILTER is set before compilation,
compilation of the ppp-package will fail with the error message

Package ppp is missing dependencies for the following libraries:
libpcap.so.1

The reason is that the OpenWrt-patch for the Makefile only comments
out the line FILTER=y. Hence the pcap-library will be dynamically
linked if the environment variable FILTER is set elsewhere, which
causes compilation to fail. The fix consists on explicitly unsetting
the variable FILTER instead.

Signed-off-by: Eike Ritter <git@rittere.co.uk>
This commit is contained in:
Eike Ritter 2021-03-14 18:50:21 +00:00 committed by Hauke Mehrtens
parent c027dbac5a
commit 46cd0765d0
1 changed files with 12 additions and 0 deletions
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12
package/network/services/ppp/patches/610-pppd_compile_fix.patch Normal file
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@ -0,0 +1,12 @@
--- a/pppd/Makefile.linux
+++ b/pppd/Makefile.linux
@@ -49,7 +49,8 @@ MPPE=y
# Uncomment the next line to include support for PPP packet filtering.
# This requires that the libpcap library and headers be installed
# and that the kernel driver support PPP packet filtering.
-#FILTER=y
+# libpcap statically linked in OpenWRT, hence disabled here.
+FILTER=
# Support for precompiled filters
PRECOMPILED_FILTER=y