[tor-bugs] #17347 [Tor]: Tor doesn't build under musl-libc

Tor Bug Tracker & Wiki blackhole at torproject.org
Wed Oct 14 01:40:12 UTC 2015


#17347: Tor doesn't build under musl-libc
-------------------------+------------------------------
     Reporter:  jamestk  |      Owner:
         Type:  defect   |     Status:  new
     Priority:  Medium   |  Milestone:
    Component:  Tor      |    Version:  Tor: unspecified
     Severity:  Normal   |   Keywords:
Actual Points:           |  Parent ID:
       Points:           |    Sponsor:
-------------------------+------------------------------
 Tor's common/sandbox.c is making use of an internal header, bits/signum.h
 which is causing compilation failures under musl-libc.

 This should result in issues even under glibc...

 Relevant log snippet is below

 x86_64-gentoo-linux-musl-gcc -std=gnu99 -DHAVE_CONFIG_H -I.  -I./src/ext
 -Isrc/ext -I./src/ext/trunnel -I./src/trunnel -I./src/common -Isrc/common
 -I./src/ext/trunnel -I./src/trun
 nel -I./src/or -Isrc/or -DSHARE_DATADIR="\"/usr/share\""
 -DLOCALSTATEDIR="\"/var/lib\"" -DBINDIR="\"/usr/bin\"" -I./src/common
 -march=core-avx-i -O2 -fstack-protector-all -fom
 it-frame-pointer -fasynchronous-unwind-tables -Wall -fno-strict-aliasing
 -c -o src/common/sandbox.o src/common/sandbox.c
 src/common/sandbox.c:51:25: fatal error: bits/signum.h: No such file or
 directory
  #include <bits/signum.h>
                          ^
 compilation terminated.
 Makefile:2967: recipe for target 'src/common/sandbox.o' failed
 make[1]: *** [src/common/sandbox.o] Error 1
 make[1]: Leaving directory '/var/tmp/portage/net-
 misc/tor-0.2.6.10/work/tor-0.2.6.10'
 Makefile:1688: recipe for target 'all' failed
 make: *** [all] Error 2

 A patch I have used to make it build is below as well.

 --- a/src/common/sandbox.c      2015-07-10 17:54:28.000000000 +0200
 +++ b/src/common/sandbox.c      2015-08-31 18:33:17.178104105 +0200
 @@ -48,7 +48,7 @@
  #include <sys/epoll.h>
  #include <sys/prctl.h>
  #include <linux/futex.h>
 -#include <bits/signum.h>
 +#include <sys/file.h>

  #include <stdarg.h>
  #include <seccomp.h>
 --- a/src/common/sandbox.h      2015-06-22 19:42:28.000000000 +0200
 +++ b/src/common/sandbox.h      2015-08-31 18:33:01.806151831 +0200
 @@ -41,6 +41,7 @@

  #ifndef __USE_GNU
  #define __USE_GNU
 +#define _GNU_SOURCE
  #endif
  #include <sys/ucontext.h>
  #include <seccomp.h>

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/17347>
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