Libmv: Update to the latest upstream version

Main reason is to bring up new Glog which should have MSVC 2015
support.

1 files changed, 10 insertions, 8 deletions

diff --git a/extern/libmv/third_party/glog/src/utilities.cc b/extern/libmv/third_party/glog/src/utilities.cc
index 1e8836d243f..5c88e58d3c0 100644
--- a/extern/libmv/third_party/glog/src/utilities.cc
+++ b/extern/libmv/third_party/glog/src/utilities.cc
@@ -84,7 +84,7 @@ static void DebugWriteToStderr(const char* data, void *) {
   }
 }
 
-static void DebugWriteToString(const char* data, void *arg) {
+void DebugWriteToString(const char* data, void *arg) {
   reinterpret_cast<string*>(arg)->append(data);
 }
 
@@ -138,13 +138,15 @@ static void DumpStackTraceAndExit() {
 
   // TOOD(hamaji): Use signal instead of sigaction?
 #ifdef HAVE_SIGACTION
-  // Set the default signal handler for SIGABRT, to avoid invoking our
-  // own signal handler installed by InstallFailedSignalHandler().
-  struct sigaction sig_action;
-  memset(&sig_action, 0, sizeof(sig_action));
-  sigemptyset(&sig_action.sa_mask);
-  sig_action.sa_handler = SIG_DFL;
-  sigaction(SIGABRT, &sig_action, NULL);
+  if (IsFailureSignalHandlerInstalled()) {
+    // Set the default signal handler for SIGABRT, to avoid invoking our
+    // own signal handler installed by InstallFailureSignalHandler().
+    struct sigaction sig_action;
+    memset(&sig_action, 0, sizeof(sig_action));
+    sigemptyset(&sig_action.sa_mask);
+    sig_action.sa_handler = SIG_DFL;
+    sigaction(SIGABRT, &sig_action, NULL);
+  }
 #endif  // HAVE_SIGACTION
 
   abort();