diff -ur rstudio-0.98.110-old/src/cpp/core/CMakeLists.txt rstudio-0.98.110-new/src/cpp/core/CMakeLists.txt
--- rstudio-0.98.110-old/src/cpp/core/r_util/REnvironmentPosix.cpp	2013-04-28 10:02:14.000000000 -0400
+++ rstudio-0.98.110-new/src/cpp/core/r_util/REnvironmentPosix.cpp	2015-03-23 15:06:35.533400807 -0400
@@ -84,9 +84,7 @@
 {
    // define potential paths
    std::vector<std::string> rScriptPaths;
-   rScriptPaths.push_back("/usr/bin/R");
-   rScriptPaths.push_back("/usr/local/bin/R");
-   rScriptPaths.push_back("/opt/local/bin/R");
+   rScriptPaths.push_back("@R@/bin/R");
    return scanForRScript(rScriptPaths, pErrMsg);
 }

@@ -220,8 +218,7 @@
       // scan in standard locations as a fallback
       std::string scanErrMsg;
       std::vector<std::string> rScriptPaths;
-      rScriptPaths.push_back("/usr/local/bin/R");
-      rScriptPaths.push_back("/usr/bin/R");
+      rScriptPaths.push_back("@R@/bin/R");
       FilePath scriptPath = scanForRScript(rScriptPaths, &scanErrMsg);
       if (scriptPath.empty())
       {