Add error message when clang-cc cannot be found.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@76256 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/utils/scan-build b/utils/scan-build
index 5835628d59ba7435b7249a6b87515f26ee70b22a..9141ca1f246306c96ed8291121699bfe6aabdb2e 100755 (executable)
--- a/utils/scan-build
+++ b/utils/scan-build
@@ -116,6 +116,10 @@ my $Clang = $ClangSB;
 my %AvailableAnalyses;
 
 # Query clang for analysis options.
+if (!-x $ClangCC) {
+  DieDiag("No executable 'clang-cc' found\n");
+}
+
 open(PIPE, "-|", $ClangCC, "--help") or
   DieDiag("Cannot execute '$ClangCC'\n");