CVS commit: src/lib/libc/net

["Izumi Tsutsui" <tsutsui%netbsd.org@localhost>]

Module Name:    src
Committed By:   tsutsui
Date:           Sat Dec 24 04:59:00 UTC 2011

Modified Files:
        src/lib/libc/net: Makefile.inc

Log Message:
Specify "-fno-tree-ter" to getaddrinfo.c and gethnamaddr.c on arm and gcc45
for workaround of a possible optimazation bug.

On my W-ZERO3 and Zaurus, hostname lookup against CNAME by some commands
(ping(8), ftp(1) etc.) fails even though nslookup(8) returns a proper name
against the same CNAME, after NetBSD/arm ports has been switched to
gcc 4.5 since 201110311420Z (i.e 201110310000Z binaries worked but
201111010000Z ones not).

Building getaddrinfo.c and gethnamaddr.c in libc with "-O2 -fno-tree-ter"
(or using objects built by old gcc 4.1) seems to fix this issue.

Accroding to nonaka@, the following gcc bugzilla test case also fails
with -O2 but works with -O2 -fno-tree-ter on NetBSD/zaurus 5.99.57:
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48863#c4
but CNAME lookup didn't fail on his environment even without this workaround.


To generate a diff of this commit:
cvs rdiff -u -r1.78 -r1.79 src/lib/libc/net/Makefile.inc

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.