Compiler error on 64bit ubuntu

[chetgnegy]

I am trying to build glog on 64 bit Ubuntu 16.04. I am getting this error

ERROR: /home/chetgnegy/.cache/bazel/_bazel_chetgnegy/703b9800778fef35edeb624f262556cf/external/glog/BUILD:6:1: C++ compilation of rule '@glog//:glog' failed: linux-sandbox failed: error executing command /home/chetgnegy/.cache/bazel/_bazel_chetgnegy/703b9800778fef35edeb624f262556cf/execroot/Source/_bin/linux-sandbox ... (remaining 95 argument(s) skipped).
external/glog/src/utilities.cc:247:2: error: #error "Must define __NR_gettid for non-x86 platforms"
 #error "Must define __NR_gettid for non-x86 platforms"
  ^
external/glog/src/utilities.cc: In function 'pid_t google::glog_internal_namespace_::GetTID()':
external/glog/src/utilities.cc:254:25: error: '__NR_gettid' was not declared in this scope
     pid_t tid = syscall(__NR_gettid);
                         ^
Target //ThirdParty/Google/GLog:GLog failed to build
Use --verbose_failures to see the command lines of failed build steps.
INFO: Elapsed time: 0.443s, Critical Path: 0.35s

I am attempting to build with bazel using the BUILD file that was posted here:
#61

I would expect that this symbol would get defined at some point, I believe it is in unistd.h. Does anyone know what might be wrong?

[breakds]

I ran into the same problem, and for this particular one, I think it comes from sys/syscall.h. You need to specify "-DHAVE_SYS_SYSCALL_H" in order to let glog include the correct syscall.h in Ubuntu 16.04.

[chetgnegy]

Thank you so much. That fixed my problem!