Use 'clang' binary in the same dir as scan-build; if it isn't there use the one in the path

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@49933 91177308-0d34-0410-b5e6-96231b3b80d8

utils/ccc-analyzer

@@ -37,10 +37,6 @@ def run(args):
     if code:
         sys.exit(code)
 
-def preprocess(args):
-    command = 'clang -E'.split()
-    run(command + args)
-
 def compile(args):
   # We MUST print to stderr.  Some clients use the stdout output of
   # gcc for various purposes.
@@ -54,7 +50,7 @@ def remove_pch_extension(path):
           return path
       return path[:i]
 
-def analyze(args,language,output,files,verbose,htmldir):
+def analyze(clang, args,language,output,files,verbose,htmldir):
     if language.find("c++") > 0:
       return
   
@@ -74,7 +70,7 @@ def analyze(args,language,output,files,verbose,htmldir):
       command = 'cp'.split()
       args = command + files + target.split()      
     else:
-      command = 'clang -checker-cfref'.split()
+      command = clang.split() + '-checker-cfref'.split()
       args = command + args;
       
       if htmldir is not None:
@@ -133,10 +129,17 @@ def main(args):
     language = ''
     
     verbose = 0
+    clang = "clang"
+    
     
     if os.environ.get('CCC_ANALYZER_VERBOSE') is not None:
       verbose =1
       
+    clang_env = os.environ.get('CLANG') 
+    
+    if clang_env is not None:
+      clang = clang_env
+    
     htmldir = os.environ.get('CCC_ANALYZER_HTML')
       
     i = 0
@@ -236,7 +239,7 @@ def main(args):
             if language != 'unknown':
               analyze_args = analyze_args + [ '-x', language ]
             analyze_args = analyze_args + compile_opts
-            analyze(analyze_args, language, output, files, verbose, htmldir)
+            analyze(clang, analyze_args, language, output, files, verbose, htmldir)
         compile(args)
 
 

utils/scan-build

@@ -538,7 +538,15 @@ my $Cmd = "$RealBin/ccc-analyzer";
 die "$Prog: Executable 'ccc-analyzer' does not exist at '$Cmd'\n"
   if (! -x $Cmd);
   
+my $Clang = "$RealBin/clang";
+
+if (! -x $Clang) {
+  print "$Prog: 'clang' executable not found in '$RealBin'.  Using 'clang' from path.\n";
+  $Clang = "clang";
+}
+
 $ENV{'CC'} = $Cmd;
+$ENV{'CLANG'} = $Clang;
 
 if ($Verbose >= 2) {
   $ENV{'CCC_ANALYZER_VERBOSE'} = 1;