* Package:    dev-lua/lanes-3.10.0
 * Repository: gentoo
 * Maintainer: williamh@gentoo.org
 * USE:        abi_x86_64 amd64 elibc_musl kernel_linux userland_GNU
 * FEATURES:   network-sandbox preserve-libs sandbox userpriv usersandbox
>>> Unpacking source...
>>> Unpacking lanes-3.10.0.tar.gz to /var/tmp/portage/dev-lua/lanes-3.10.0/work
>>> Source unpacked in /var/tmp/portage/dev-lua/lanes-3.10.0/work
>>> Preparing source in /var/tmp/portage/dev-lua/lanes-3.10.0/work/lanes-3.10.0 ...
 * Applying lanes-3.10.0-fix-makefile.patch ...
 [ ok ]
>>> Source prepared.
>>> Configuring source in /var/tmp/portage/dev-lua/lanes-3.10.0/work/lanes-3.10.0 ...
>>> Source configured.
>>> Compiling source in /var/tmp/portage/dev-lua/lanes-3.10.0/work/lanes-3.10.0 ...
make -j1 
which: no lua5.1 in (/usr/lib/portage/python3.6/ebuild-helpers/xattr:/usr/lib/portage/python3.6/ebuild-helpers:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/opt/bin:/usr/lib/llvm/10/bin:/usr/lib/llvm/9/bin:/usr/lib/llvm/8/bin:/opt/tivoli/tsm/client/ba/bin:/usr/bin/cdsclient)
which: no lua51 in (/usr/lib/portage/python3.6/ebuild-helpers/xattr:/usr/lib/portage/python3.6/ebuild-helpers:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/opt/bin:/usr/lib/llvm/10/bin:/usr/lib/llvm/9/bin:/usr/lib/llvm/8/bin:/opt/tivoli/tsm/client/ba/bin:/usr/bin/cdsclient)
cd src && make LUA=lua
make[1]: Entering directory '/var/tmp/portage/dev-lua/lanes-3.10.0/work/lanes-3.10.0/src'
x86_64-gentoo-linux-musl-gcc -Wall -Werror -O2 -I/usr/include/luajit-2.0 -D_GNU_SOURCE -fPIC   -c -o lanes.o lanes.c
In file included from lanes.c:89:
lanes.c: In function ‘selfdestruct_gc’:
threading.h:168:21: error: implicit declaration of function ‘pthread_yield’; did you mean ‘pthread_self’? [-Werror=implicit-function-declaration]
  168 |     #define YIELD() pthread_yield()
      |                     ^~~~~~~~~~~~~
lanes.c:1639:5: note: in expansion of macro ‘YIELD’
 1639 |     YIELD();    // give threads time to act on their cancel
      |     ^~~~~
lanes.c: In function ‘LG_configure’:
threading.h:132:29: error: ‘PTHREAD_MUTEX_RECURSIVE_NP’ undeclared (first use in this function); did you mean ‘PTHREAD_MUTEX_RECURSIVE’?
  132 |   # define _MUTEX_RECURSIVE PTHREAD_MUTEX_RECURSIVE_NP
      |                             ^~~~~~~~~~~~~~~~~~~~~~~~~~
threading.h:142:40: note: in expansion of macro ‘_MUTEX_RECURSIVE’
  142 |         pthread_mutexattr_settype( &a, _MUTEX_RECURSIVE ); \
      |                                        ^~~~~~~~~~~~~~~~
lanes.c:3092:3: note: in expansion of macro ‘MUTEX_RECURSIVE_INIT’
 3092 |   MUTEX_RECURSIVE_INIT( &U->require_cs);
      |   ^~~~~~~~~~~~~~~~~~~~
threading.h:132:29: note: each undeclared identifier is reported only once for each function it appears in
  132 |   # define _MUTEX_RECURSIVE PTHREAD_MUTEX_RECURSIVE_NP
      |                             ^~~~~~~~~~~~~~~~~~~~~~~~~~
threading.h:142:40: note: in expansion of macro ‘_MUTEX_RECURSIVE’
  142 |         pthread_mutexattr_settype( &a, _MUTEX_RECURSIVE ); \
      |                                        ^~~~~~~~~~~~~~~~
lanes.c:3092:3: note: in expansion of macro ‘MUTEX_RECURSIVE_INIT’
 3092 |   MUTEX_RECURSIVE_INIT( &U->require_cs);
      |   ^~~~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors
make[1]: *** [<builtin>: lanes.o] Error 1
make[1]: Leaving directory '/var/tmp/portage/dev-lua/lanes-3.10.0/work/lanes-3.10.0/src'
make: *** [Makefile:46: src/lanes/core.so] Error 2
 * ERROR: dev-lua/lanes-3.10.0::gentoo failed (compile phase):
 *   emake failed
 * 
 * If you need support, post the output of `emerge --info '=dev-lua/lanes-3.10.0::gentoo'`,
 * the complete build log and the output of `emerge -pqv '=dev-lua/lanes-3.10.0::gentoo'`.
 * The complete build log is located at '/var/log/portage/dev-lua:lanes-3.10.0:20200408-155654.log'.
 * For convenience, a symlink to the build log is located at '/var/tmp/portage/dev-lua/lanes-3.10.0/temp/build.log'.
 * The ebuild environment file is located at '/var/tmp/portage/dev-lua/lanes-3.10.0/temp/environment'.
 * Working directory: '/var/tmp/portage/dev-lua/lanes-3.10.0/work/lanes-3.10.0'
 * S: '/var/tmp/portage/dev-lua/lanes-3.10.0/work/lanes-3.10.0'