4 files changed, 49 insertions, 8 deletions
diff --git a/src/common/linux/elf_gnu_compat.h b/src/common/linux/elf_gnu_compat.h
new file mode 100644
index 00000000..f870cbc7
--- /dev/null
+++ b/src/common/linux/elf_gnu_compat.h
@@ -0,0 +1,46 @@
+// -*- mode: C++ -*-
+
+// Copyright (c) 2013, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// Original author: Lei Zhang <thestig@google.com>
+
+// elf_gnu_compat.h: #defines unique to glibc's elf.h.
+
+#ifndef COMMON_LINUX_ELF_GNU_COMPAT_H_
+#define COMMON_LINUX_ELF_GNU_COMPAT_H_
+
+#include <elf.h>
+
+// A note type on GNU systems corresponding to the .note.gnu.build-id section.
+#ifndef NT_GNU_BUILD_ID
+#define NT_GNU_BUILD_ID 3
+#endif
+
+#endif  // COMMON_LINUX_ELF_GNU_COMPAT_H_
diff --git a/src/common/linux/file_id.cc b/src/common/linux/file_id.cc
index ca5a3e1f..e3631785 100644
--- a/src/common/linux/file_id.cc
+++ b/src/common/linux/file_id.cc
@@ -40,6 +40,7 @@
 
 #include <algorithm>
 
+#include "common/linux/elf_gnu_compat.h"
 #include "common/linux/elfutils.h"
 #include "common/linux/linux_libc_support.h"
 #include "common/linux/memory_mapped_file.h"
@@ -47,10 +48,6 @@
 
 namespace google_breakpad {
 
-#ifndef NT_GNU_BUILD_ID
-#define NT_GNU_BUILD_ID 3
-#endif
-
 FileID::FileID(const char* path) {
   strncpy(path_, path, sizeof(path_));
 }
diff --git a/src/common/linux/file_id_unittest.cc b/src/common/linux/file_id_unittest.cc
index bcd030dc..4bf4f8df 100644
--- a/src/common/linux/file_id_unittest.cc
+++ b/src/common/linux/file_id_unittest.cc
@@ -34,6 +34,7 @@
 
 #include <string>
 
+#include "common/linux/elf_gnu_compat.h"
 #include "common/linux/elfutils.h"
 #include "common/linux/file_id.h"
 #include "common/linux/safe_readlink.h"
diff --git a/src/common/linux/synth_elf.cc b/src/common/linux/synth_elf.cc
index 9cd03ef8..b978550f 100644
--- a/src/common/linux/synth_elf.cc
+++ b/src/common/linux/synth_elf.cc
@@ -5,15 +5,12 @@
 #include <stdio.h>
 #include <string.h>
 
+#include "common/linux/elf_gnu_compat.h"
 #include "common/using_std_string.h"
 
 namespace google_breakpad {
 namespace synth_elf {
 
-#ifndef NT_GNU_BUILD_ID
-#define NT_GNU_BUILD_ID 3
-#endif
-
 ELF::ELF(uint16_t machine,
          uint8_t file_class,
          Endianness endianness)