Copied from Debian.

Description: Fix build of  WebRTC on non-Linux systems
 * Define the WEBRTC_LINUX macro only on Linux, and not on GNU/Hurd or FreeBSD.
 * Fix type cast in the CurrentThreadId function.
Bug-Debian: https://bugs.debian.org/920851
Author: Nicholas Guriev <guriev-ns@ya.ru>
Last-Update: Tue, 29 Jan 2019 23:26:44 +0300

--- a/libtgvoip.gyp
+++ b/libtgvoip.gyp
@@ -869,20 +869,18 @@
             '"<(OS)" == "linux"', {
               'defines': [
                 'WEBRTC_POSIX',
-                'WEBRTC_LINUX',
               ],
               'conditions': [
                 [ '"<!(uname -m)" == "i686"', {
                   'cflags_cc': [
                     '-msse2',
                   ],
+                }], ['"<!(uname -s)" == "Linux"', {
+                  'defines': [
+                    'WEBRTC_LINUX',
+                  ],
                 }]
               ],
-              'direct_dependent_settings': {
-                'libraries': [
-
-                ],
-              },
             },
           ],
         ],
--- a/webrtc_dsp/rtc_base/platform_thread_types.cc
+++ b/webrtc_dsp/rtc_base/platform_thread_types.cc
@@ -31,7 +31,7 @@ PlatformThreadId CurrentThreadId() {
   return syscall(__NR_gettid);
 #else
   // Default implementation for nacl and solaris.
-  return reinterpret_cast<pid_t>(pthread_self());
+  return static_cast<pid_t>(pthread_self());
 #endif
 #endif  // defined(WEBRTC_POSIX)
 }
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<div class='path'>path: <a href='/guix/log/?id=8c864901b6bda70c4c6966f07d5c2d5cd4b4abf1'>root</a>/<a href='/guix/log/etc?id=8c864901b6bda70c4c6966f07d5c2d5cd4b4abf1'>etc</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/etc?id=8c864901b6bda70c4c6966f07d5c2d5cd4b4abf1&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2017-08-22 23:13:42 +0200'>2017-08-22</span></td><td><a href='/guix/commit/etc?id=ed8634c404410ed5e0d3ab06e43bd50d4eed9c42'>bash completion: Complete files names after 'guix download'.</a><span class='msg-avail'>...</span></td><td>Marius Bakke</td></tr>
<tr><td><span title='2017-07-15 21:59:21 +0100'>2017-07-15</span></td><td><a href='/guix/commit/etc?id=08f47d7e3e4ce2e31d8964eb42f16030859a006c'>Remove task from 'guix-daemon.conf'.</a><span class='msg-avail'>...</span></td><td>Christopher Baines</td></tr>
<tr><td><span title='2017-05-04 22:45:53 +0300'>2017-05-04</span></td><td><a href='/guix/commit/etc?id=97658183eda6e196bd16bed02838d321b45aee70'>etc: indent-code.el: Define source tree by "indent-code.el".</a><span class='msg-avail'>...</span></td><td>Alex Kost</td></tr>
<tr><td><span title='2017-04-22 20:45:08 -0400'>2017-04-22</span></td><td><a href='/guix/commit/etc?id=644f95111cd3566b2136f935624a82210eec2c8a'>Increase "TasksMax" in 'guix-daemon.service'.</a><span class='msg-avail'>...</span></td><td>Sergei Trofimovich</td></tr>
<tr><td><span title='2017-03-06 13:25:51 -0500'>2017-03-06</span></td><td><a href='/guix/commit/etc?id=613d0895b92c677e0639d5e77c55043e38e020c8'>build: Don't embed absolute paths in .service and .conf service files.</a><span class='msg-avail'>...</span></td><td>Leo Famulari</td></tr>
<tr><td><span title='2017-02-08 03:42:08 +0100'>2017-02-08</span></td><td><a href='/guix/commit/etc?id=f0d0c5bb188455e0b82ee3089ba103ef71877c87'>etc: The pre-push hook says which commits failed the signature check.</a><span class='msg-avail'>...</span></td><td>Leo Famulari</td></tr>
<tr><td><span title='2017-02-07 00:08:10 +0100'>2017-02-07</span></td><td><a href='/guix/commit/etc?id=f2c66fbe1f01b720741e0fe2bfa619ca2862a6b8'>bash completion: Complete subcommands for the current word.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2017-02-07 00:08:10 +0100'>2017-02-07</span></td><td><a href='/guix/commit/etc?id=a93c1c59218aac49382c35fe23d1e0f021e6e676'>bash completion: Properly complete 'guix container exec'.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2017-02-07 00:08:10 +0100'>2017-02-07</span></td><td><a href='/guix/commit/etc?id=e109ed3922f2a3ff68a77f727ead27f2eb4a82ab'>bash completion: Complete file names after 'guix system COMMAND'.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2017-02-07 00:08:10 +0100'>2017-02-07</span></td><td><a href='/guix/commit/etc?id=3454f7edf9eb2901115cab522d980df712fa4078'>bash completion: Complete 'guix gc' with file names.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2017-01-20 21:39:17 +0100'>2017-01-20</span></td><td><a href='/guix/commit/etc?id=830d4c1fcdff7be199e66cd70a5048264b54a151'>etc: indent-code.el: Add indentation info for non-Guix Scheme constructs.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2017-01-13 18:49:31 +0100'>2017-01-13</span></td><td><a href='/guix/commit/etc?id=557d9c8d7a843bf06e75b4e1a742654ccf951fa3'>etc: Support indentation of whole files.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2017-01-12 14:56:52 +0100'>2017-01-12</span></td><td><a href='/guix/commit/etc?id=7bb2b10cd01a076d7d5e964ed433e62846042859'>etc: Add 'indent-package.el' script.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2017-01-04 16:27:20 -0500'>2017-01-04</span></td><td><a href='/guix/commit/etc?id=69355e1283d300a663fb639ec426f10f3feb404b'>doc: Add a Git hook that verifies signatures before pushing.</a><span class='msg-avail'>...</span></td><td>Leo Famulari</td></tr>
<tr><td><span title='2016-11-24 09:23:11 +0100'>2016-11-24</span></td><td><a href='/guix/commit/etc?id=332d7903f52c2bf3741b04ac2d01cd9018b70800'>Add system start-up files for "guix publish".</a><span class='msg-avail'>...</span></td><td>Hartmut Goebel</td></tr>