From: | Max Filippov <jcmvbkbc(at)gmail(dot)com> |
---|---|
To: | pgsql-hackers(at)postgresql(dot)org |
Cc: | Peter Seiderer <ps(dot)report(at)gmx(dot)net> |
Subject: | configure can't detect proper pthread flags |
Date: | 2015-03-20 00:14:48 |
Message-ID: | CAMo8Bf+UPPECYEtRztPxEsO0pFvAs2gBfjpp4+3M+qFPNfjjFQ@mail.gmail.com |
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Lists: | pgsql-hackers |
Hi,
when PostgreSQL is cross-compiled in the Buildroot with uClibc toolchain
it may not correctly detect compiler/linker flags for threading. [1]
The reason is that config/acx_pthread.m4:146 uses compiler and linker
stdout and stderr to make decision if acx_pthread_ok should be yes or no:
if test "`(eval $ac_link 2>&1 1>&5)`" = "" && test "`(eval
$ac_compile 2>&1 1>&5)`" = ""; then
and the toolchain emits the following warning at linking step:
libcrypto.so: warning: gethostbyname is obsolescent, use
getnameinfo() instead.
git log doesn't tell much why it is done that way. Does anybody know?
Can that test be rewritten as
if eval $ac_link 2>&1 1>&5 && eval $ac_compile 2>&1 1>&5 ; then
?
[1] http://comments.gmane.org/gmane.comp.lib.uclibc.buildroot/110204
--
Thanks.
-- Max
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