Autoconf and some other systems tend to add essential compilation options to CC (e.g. -std=gnu99). When running such an auto-generated makefile, scan-build does not need to change CC and CXX as they are already set to use ccc-analyzer by a configure script.
Implement a new option --keep-cc as was proposed in this discussion: http://lists.llvm.org/pipermail/cfe-dev/2013-September/031832.html --- tools/scan-build/bin/scan-build | 24 ++++++++++++++++++++---- 1 file changed, 20 insertions(+), 4 deletions(-) diff --git a/tools/scan-build/bin/scan-build b/tools/scan-build/bin/scan-build index cbf3bf3..49018eb 100755 --- a/tools/scan-build/bin/scan-build +++ b/tools/scan-build/bin/scan-build @@ -51,6 +51,7 @@ my %Options = ( OutputDir => undef, # Parent directory to store HTML files. HtmlTitle => basename($CurrentDir)." - scan-build results", IgnoreErrors => 0, # Ignore build errors. + KeepCC => 0, # Do not override CC and CXX make variables ViewResults => 0, # View results when the build terminates. ExitStatusFoundBugs => 0, # Exit status reflects whether bugs were found ShowDescription => 0, # Display the description of the defect in the list @@ -1062,6 +1063,7 @@ sub RunXcodebuild { sub RunBuildCommand { my $Args = shift; my $IgnoreErrors = shift; + my $KeepCC = shift; my $Cmd = $Args->[0]; my $CCAnalyzer = shift; my $CXXAnalyzer = shift; @@ -1099,8 +1101,10 @@ sub RunBuildCommand { unshift @$Args, $CXXAnalyzer; } elsif ($Cmd eq "make" or $Cmd eq "gmake" or $Cmd eq "mingw32-make") { - AddIfNotPresent($Args, "CC=$CCAnalyzer"); - AddIfNotPresent($Args, "CXX=$CXXAnalyzer"); + if (!$KeepCC) { + AddIfNotPresent($Args, "CC=$CCAnalyzer"); + AddIfNotPresent($Args, "CXX=$CXXAnalyzer"); + } if ($IgnoreErrors) { AddIfNotPresent($Args,"-k"); AddIfNotPresent($Args,"-i"); @@ -1158,6 +1162,12 @@ OPTIONS: currently supports make and xcodebuild. This is a convenience option; one can specify this behavior directly using build options. + --keep-cc + + Do not override CC and CXX make variables. Useful when running make in + autoconf-based (and similar) projects where configure can add extra flags + to those variables. + --html-title [title] --html-title=[title] @@ -1532,6 +1542,12 @@ sub ProcessArgs { next; } + if ($arg eq "--keep-cc") { + shift @$Args; + $Options{KeepCC} = 1; + next; + } + if ($arg =~ /^--use-cc(=(.+))?$/) { shift @$Args; my $cc; @@ -1838,8 +1854,8 @@ my %EnvVars = ( ); # Run the build. -my $ExitStatus = RunBuildCommand(\@ARGV, $Options{IgnoreErrors}, $Cmd, $CmdCXX, - \%EnvVars); +my $ExitStatus = RunBuildCommand(\@ARGV, $Options{IgnoreErrors}, $Options{KeepCC}, + $Cmd, $CmdCXX, \%EnvVars); if (defined $Options{OutputFormat}) { if ($Options{OutputFormat} =~ /plist/) { -- 2.7.0 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
