exe: support 0.10.x for js-flags

lib/exe.js

@@ -643,7 +643,7 @@ function _monkeyPatchMainCc(compiler, complete) {
 		function (content) {
 			return ~content.indexOf('//  // TODO use parse opts');
 		},
-		function (content, next) {
+		function (content, next) {  // TODO: failsafe this
 			var lines = content.split('\n');
 			var endLine = lines.indexOf('  option_end_index = i;'); // pre node 0.11.6 compat
 
@@ -713,6 +713,12 @@ SetFlagsFromString(nexevargs, nexevargslen);\n\
       lineToInjectAfter = contentsSplit.indexOf('#undef FLAG_MODE_DEFINE_IMPLICATIONS');
     }
 
+    // support for 0.10.x
+    if(lineToInjectAfter===-1) {
+      _log('warn', '0.12.x patch failed. Trying 0.10.0 patch');
+      lineToInjectAfter = contentsSplit.indexOf('#define FLAG_MODE_DEFINE_IMPLICATIONS')+1;
+    }
+
     // this is debug, comment out.
     // _log('v8 injection is', injectionLength, 'newlines long');
     // _log('v8 flags source is', contentsLength, 'newlines long');
@@ -755,7 +761,7 @@ SetFlagsFromString(nexevargs, nexevargslen);\n\
       finalContents = finalContents.replace(/const char\* nexevargs = "[A-Z\-\_]*";/gi,
         'const char* nexevargs = "'+options.jsFlags+'";');
     } else {
-      _log('warn', 'failed to find a suitable injection point for v8 args.',
+      _log('error', 'failed to find a suitable injection point for v8 args.',
         'File a bug report with the node version and log.');
 
       _log('lineToInjectAfter='+lineToInjectAfter, 'haveWeInjectedBefore='+haveWeInjectedBefore);
@@ -766,6 +772,7 @@ SetFlagsFromString(nexevargs, nexevargslen);\n\
       finalContents = contentsSplit.join('\n');
     }
 
+    // write the file contents
     fs.writeFile(mainPath, finalContents, {encoding: 'utf8'}, function(err) {
       if(err) {
         _log('error', 'failed to write to', mainPath);