Re: pthread related build error on CentOS 6

[Tom G. Christensen]

On 26/01/17 21:15, Tom G. Christensen wrote:
> Hello,
>
> My daily full gnulib bootstrap on CentOS 6 has stopped working with this
> build error:
> gcc -std=gnu99 -fvisibility=hidden -g -O2 -Wall   -o git-merge-changelog
> git-merge-changelog.o libgnu.a   -lm -lm -lm -lm -lm -lm -lm -lm -lm -lm
> -lm
> libgnu.a(lock.o): In function `glthread_rwlock_init_for_glibc':
> /home/tgc/projects/gnulib/build/gllib/glthread/lock.c:46: undefined
> reference to `pthread_rwlockattr_init'
> /home/tgc/projects/gnulib/build/gllib/glthread/lock.c:53: undefined
> reference to `pthread_rwlockattr_setkind_np'
> /home/tgc/projects/gnulib/build/gllib/glthread/lock.c:59: undefined
> reference to `pthread_rwlockattr_destroy'
> collect2: ld returned 1 exit status
> make[4]: *** [git-merge-changelog] Error 1
>
> Adding -pthread or -lpthread allows the link to succeed.
>
> The build then fails again at:
> gcc -std=gnu99  -g -O2 -Wall   -o test-fstrcmp test-fstrcmp.o
> ../gllib/libgnu.a   -lm -lm -lm -lm -lm -lm -lm -lm -lm -lm -lm
> ../gllib/libgnu.a(lock.o): In function `glthread_rwlock_init_for_glibc':
> /home/tgc/projects/gnulib/build/gllib/glthread/lock.c:46: undefined
> reference to `pthread_rwlockattr_init'
> /home/tgc/projects/gnulib/build/gllib/glthread/lock.c:53: undefined
> reference to `pthread_rwlockattr_setkind_np'
> /home/tgc/projects/gnulib/build/gllib/glthread/lock.c:59: undefined
> reference to `pthread_rwlockattr_destroy'
> collect2: ld returned 1 exit status
> make[4]: *** [test-fstrcmp] Error 1
>
> Manually linking test-fstrcmp with -pthread then allows the build to
> complete.

bump?

It's currently not possible for me to build a gnulib snapshot made with 
this gnulib-tool invocation:
./gnulib-tool --create-testdir --with-tests 
--dir=/home/tgc/projects/gnulib/build 
--avoid=non-recursive-gnulib-prefix-hack

It will fail as shown above.

I've uploaded a log from a failed build:
http://jupiterrise.com/tmp/log-gnulib-201701301327195863188.txt
(add .gz for a compressed version)

-tgc