This patch fixes the build of adb on linux.

Copied from archlinux repository:
https://git.archlinux.org/svntogit/community.git/tree/trunk/fix_build.patch?h=packages/android-tools

diff --git a/adb/sysdeps.h b/adb/sysdeps.h
index 75dcc86..867f3ec 100644
--- a/adb/sysdeps.h
+++ b/adb/sysdeps.h
@@ -25,6 +25,7 @@
 #endif
 
 #include <errno.h>
+#include <sys/syscall.h>
 
 #include <string>
 #include <vector>
@@ -831,7 +832,16 @@ static __inline__ int adb_is_absolute_host_path(const char* path) {
 
 static __inline__ unsigned long adb_thread_id()
 {
-    return (unsigned long)gettid();
+  // TODO: this function should be merged with GetThreadId
+#if defined(__BIONIC__)
+  return gettid();
+#elif defined(__APPLE__)
+  return syscall(SYS_thread_selfid);
+#elif defined(__linux__)
+  return syscall(__NR_gettid);
+#elif defined(_WIN32)
+  return GetCurrentThreadId();
+#endif
 }
 
 #endif /* !_WIN32 */
diff --git a/base/errors_unix.cpp b/base/errors_unix.cpp
index 296995e..48269b6 100644
--- a/base/errors_unix.cpp
+++ b/base/errors_unix.cpp
@@ -17,6 +17,7 @@
 #include "android-base/errors.h"
 
 #include <errno.h>
+#include <string.h>
 
 namespace android {
 namespace base {
diff --git a/base/file.cpp b/base/file.cpp
index da1adba..91a3901 100644
--- a/base/file.cpp
+++ b/base/file.cpp
@@ -20,6 +20,7 @@
 #include <fcntl.h>
 #include <sys/stat.h>
 #include <sys/types.h>
+#include <string.h>
 
 #include <string>
 
diff --git a/base/logging.cpp b/base/logging.cpp
index 1741871..e97c7f1 100644
--- a/base/logging.cpp
+++ b/base/logging.cpp
@@ -21,6 +21,7 @@
 #include "android-base/logging.h"
 
 #include <libgen.h>
+#include <string.h>
 
 // For getprogname(3) or program_invocation_short_name.
 #if defined(__ANDROID__) || defined(__APPLE__)
n>
<option value='author'>author</option>
<option value='committer'>committer</option>
<option value='range'>range</option>
</select>
<input class='txt' type='search' size='10' name='q' value=''/>
<input type='submit' value='search'/>
</form>
</td></tr></table>
<div class='path'>path: <a href='/guix/log/?id=efed8e6cb955762379156b609b2c99e60428a34c'>root</a>/<a href='/guix/log/gnu?id=efed8e6cb955762379156b609b2c99e60428a34c'>gnu</a>/<a href='/guix/log/gnu/packages?id=efed8e6cb955762379156b609b2c99e60428a34c'>packages</a>/<a href='/guix/log/gnu/packages/mingw.scm?id=efed8e6cb955762379156b609b2c99e60428a34c'>mingw.scm</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/gnu/packages/mingw.scm?id=efed8e6cb955762379156b609b2c99e60428a34c&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2021-02-03 10:26:22 -0500'>2021-02-03</span></td><td><a href='/guix/commit/gnu/packages/mingw.scm?id=44c98c997933c4dc531775f1bb0848b39c7abf37'>gnu: Add mingw-w64-tools.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/mingw.scm (mingw-w64-tools): New variable.

Signed-off-by: Maxim Cournoyer &lt;maxim.cournoyer@gmail.com&gt;
</span></span></td><td>Léo Le Bouter</td></tr>
<tr><td><span title='2021-02-03 10:26:22 -0500'>2021-02-03</span></td><td><a href='/guix/commit/gnu/packages/mingw.scm?id=dc2774549f2f5323353558f46bf484a11cc15f15'>gnu: mingw-64: Update to 8.0.0.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/mingw.scm (mingw-64): Update to 8.0.0.
</span></span></td><td>Maxim Cournoyer</td></tr>
<tr><td><span title='2021-02-03 10:26:22 -0500'>2021-02-03</span></td><td><a href='/guix/commit/gnu/packages/mingw.scm?id=88c635d96a1dfba90278dd9a3c2fcf523c74b55c'>gnu: make-mingw-w64: Use a mirror URI and fix lint errors.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/package/mingw.scm (make-mingw-w64)[source]: Use a mirror URI.  Wrap
lines 80 columns to fix lint warning.

Signed-off-by: Maxim Cournoyer &lt;maxim.cournoyer@gmail.com&gt;
</span></span></td><td>Léo Le Bouter</td></tr>