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Date: Wed, 23 Jan 2013 17:39:53 +0100
From: Alexander Stadler <sa.musl@...vie.ac.at>
To: musl@...ts.openwall.com
Subject: Bug in include/netinet/in.h

Dear musl developers!

I currently try to compile openwrt with your library instead of with uClibc.

Since recent changes in the netifd code, I get the following error:

make[6]: Entering directory `/space/build-trunk/trunk/build_dir/target-mips_r2_musl-0.9.8/netifd-2013-01-22.1'
Scanning dependencies of target netifd
make[6]: Leaving directory `/space/build-trunk/trunk/build_dir/target-mips_r2_musl-0.9.8/netifd-2013-01-22.1'
make[6]: Entering directory `/space/build-trunk/trunk/build_dir/target-mips_r2_musl-0.9.8/netifd-2013-01-22.1'
[  5%] Building C object CMakeFiles/netifd.dir/main.c.o
[ 11%] Building C object CMakeFiles/netifd.dir/utils.c.o
[ 17%] Building C object CMakeFiles/netifd.dir/system.c.o
[ 23%] Building C object CMakeFiles/netifd.dir/tunnel.c.o
[ 29%] Building C object CMakeFiles/netifd.dir/interface.c.o
[ 35%] Building C object CMakeFiles/netifd.dir/interface-ip.c.o
/space/build-trunk/trunk/build_dir/target-mips_r2_musl-0.9.8/netifd-2013-01-22.1/interface-ip.c: In function 'interface_ip_set_ula_prefix':
/space/build-trunk/trunk/build_dir/target-mips_r2_musl-0.9.8/netifd-2013-01-22.1/interface-ip.c:655:2: error: suggest parentheses around arithmetic in operand of '|' [-Werror=parentheses]
/space/build-trunk/trunk/build_dir/target-mips_r2_musl-0.9.8/netifd-2013-01-22.1/interface-ip.c:655:2: error: suggest parentheses around arithmetic in operand of '|' [-Werror=parentheses]
/space/build-trunk/trunk/build_dir/target-mips_r2_musl-0.9.8/netifd-2013-01-22.1/interface-ip.c:655:2: error: suggest parentheses around arithmetic in operand of '|' [-Werror=parentheses]
cc1: all warnings being treated as errors
make[6]: *** [CMakeFiles/netifd.dir/interface-ip.c.o] Error 1
make[6]: Leaving directory `/space/build-trunk/trunk/build_dir/target-mips_r2_musl-0.9.8/netifd-2013-01-22.1'

As this line does not have an | operation in it, but IN6_ARE_ADDR_EQUAL
http://git.musl-libc.org/cgit/musl/tree/include/netinet/in.h#n148
has, we think its a bug on your side.

The ticket in openwrt was
https://dev.openwrt.org/ticket/12871

Thanks

Alex

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