[build] Introduce an embedder version string

src/version.cc

Index: src/version.cc
diff --git a/src/version.cc b/src/version.cc
index 3252d550354ee833f5d311e4e3fbca285a6b003b..18497bc48d78b89153285e5ba7466358a6062356 100644
--- a/src/version.cc
+++ b/src/version.cc
@@ -20,6 +20,7 @@ int Version::major_ = V8_MAJOR_VERSION;
 int Version::minor_ = V8_MINOR_VERSION;
 int Version::build_ = V8_BUILD_NUMBER;
 int Version::patch_ = V8_PATCH_LEVEL;
+const char* Version::embedder_ = V8_EMBEDDER_STRING;
 bool Version::candidate_ = (V8_IS_CANDIDATE_VERSION != 0);
 const char* Version::soname_ = SONAME;
 const char* Version::version_string_ = V8_VERSION_STRING;
@@ -33,9 +34,8 @@ void Version::GetString(Vector<char> str) {
   const char* is_simulator = "";
 #endif  // USE_SIMULATOR
   if (GetPatch() > 0) {
-    SNPrintF(str, "%d.%d.%d.%d%s%s",
-             GetMajor(), GetMinor(), GetBuild(), GetPatch(), candidate,
-             is_simulator);
+    SNPrintF(str, "%d.%d.%d.%d%s%s%s", GetMajor(), GetMinor(), GetBuild(),
+             GetPatch(), GetEmbedder(), candidate, is_simulator);
   } else {
     SNPrintF(str, "%d.%d.%d%s%s",
              GetMajor(), GetMinor(), GetBuild(), candidate,
@@ -50,8 +50,8 @@ void Version::GetSONAME(Vector<char> str) {
     // Generate generic SONAME if no specific SONAME is defined.
     const char* candidate = IsCandidate() ? "-candidate" : "";
     if (GetPatch() > 0) {
-      SNPrintF(str, "libv8-%d.%d.%d.%d%s.so",
-               GetMajor(), GetMinor(), GetBuild(), GetPatch(), candidate);
+      SNPrintF(str, "libv8-%d.%d.%d.%d%s%s.so", GetMajor(), GetMinor(),
+               GetBuild(), GetPatch(), GetEmbedder(), candidate);
     } else {
       SNPrintF(str, "libv8-%d.%d.%d%s.so",
                GetMajor(), GetMinor(), GetBuild(), candidate);