Bug 1225072

 gcc -DHAVE_CONFIG_H -I. -I. -I../../../.. -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE -DGF_LINUX_HOST_OS -I../../../../libglusterfs/src -I../../../../contrib/uuid -I../../../../libglusterfs/src -I../../../../rpc/rpc-lib/src/ -I../../../../rpc/xdr/src/ -Wall -g -O2 -g -O2 -MT socket.lo -MD -MP -MF .deps/socket.Tpo -c socket.c  -fPIC -DPIC -o .libs/socket.o
In file included from socket.c:30:
../../../../rpc/xdr/src/glusterfs3-xdr.h:19: warning: ignoring #pragma GCC diagnostic
../../../../rpc/xdr/src/glusterfs3-xdr.h:20: warning: ignoring #pragma GCC diagnostic
socket.c:3639: error: expected ')' before '*' token
socket.c: In function 'init_openssl_mt':
socket.c:3667: warning: implicit declaration of function 'CRYPTO_THREADID_set_callback'
socket.c:3667: error: 'threadid_func' undeclared (first use in this function)
socket.c:3667: error: (Each undeclared identifier is reported only once
socket.c:3667: error: for each function it appears in.)
socket.c: In function 'socket_init':
socket.c:3687: warning: unused variable 'ret'
make[5]: *** [socket.lo] Error 1
make[4]: *** [all-recursive] Error 1
make[3]: *** [all-recursive] Error 1
make[2]: *** [all-recursive] Error 1
make[1]: *** [all-recursive] Error 1

N.B. description has an excerpt of the build output of rpmbuild on CentOS box. Comment 1 has an ecerpt of the build output of conventional autogen.sh && configure && make with verbose compiler options.

Fedora Koji build (with __hardened_build) has additional warnings which probably merit fixing:

Making all in socket
Making all in src
  CC     socket.lo
  CC     name.lo
In file included from socket.c:30:
../../../../rpc/xdr/src/glusterfs3-xdr.h:19: warning: ignoring #pragma GCC diagnostic
../../../../rpc/xdr/src/glusterfs3-xdr.h:20: warning: ignoring #pragma GCC diagnostic
socket.c: In function 'ssl_do':
socket.c:270: warning: comparison is always false due to limited range of data type
socket.c: In function '__does_socket_rwv_error_need_logging':
socket.c:516: warning: comparison is always false due to limited range of data type
socket.c: At top level:
socket.c:3639: error: expected ')' before '*' token
socket.c: In function 'init_openssl_mt':
socket.c:3667: warning: implicit declaration of function 'CRYPTO_THREADID_set_callback'
socket.c:3667: error: 'threadid_func' undeclared (first use in this function)
socket.c:3667: error: (Each undeclared identifier is reported only once
socket.c:3667: error: for each function it appears in.)
socket.c: In function 'socket_init':
socket.c:3687: warning: unused variable 'ret'
make[5]: *** [socket.lo] Error 1
make[5]: *** Waiting for unfinished jobs....
make[4]: *** [all-recursive] Error 1
make[3]: *** [all-recursive] Error 1
make[2]: *** [all-recursive] Error 1
make[1]: *** [all-recursive] Error 1
make: *** [all] Error 2

REVIEW: http://review.gluster.org/10921 (socket: fix multithreading-related build problems on RHEL5) posted (#1) for review on release-3.6 by Jeff Darcy (jdarcy)

COMMIT: http://review.gluster.org/10921 committed in release-3.6 by Raghavendra Bhat (raghavendra) 
------
commit 1661ac3cfabdbdc39c18adb18e55ac6b85e3d05d
Author: Jeff Darcy <jdarcy>
Date:   Tue May 26 11:08:23 2015 -0400

    socket: fix multithreading-related build problems on RHEL5
    
    Change-Id: I3e145137c3ef738c4459c8d3098d6094ccfb008a
    BUG: 1225072
    Signed-off-by: Jeff Darcy <jdarcy>
    Reviewed-on: http://review.gluster.org/10921
    Reviewed-by: Kaleb KEITHLEY <kkeithle>
    Reviewed-by: Niels de Vos <ndevos>
    Tested-by: Gluster Build System <jenkins.com>
    Reviewed-by: Raghavendra Bhat <raghavendra>

This bug is getting closed because a release has been made available that should address the reported issue. In case the problem is still not fixed with glusterfs-v3.6.4, please open a new bug report.

glusterfs-v3.6.4 has been announced on the Gluster mailinglists [1], packages for several distributions should become available in the near future. Keep an eye on the Gluster Users mailinglist [2] and the update infrastructure for your distribution.

[1] https://www.gluster.org/pipermail/gluster-users/2015-July/022826.html
[2] http://thread.gmane.org/gmane.comp.file-systems.gluster.user