diff options
Diffstat (limited to 'lib/Support/GraphWriter.cpp')
| -rw-r--r-- | lib/Support/GraphWriter.cpp | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/lib/Support/GraphWriter.cpp b/lib/Support/GraphWriter.cpp index f3255d815c..152261fbac 100644 --- a/lib/Support/GraphWriter.cpp +++ b/lib/Support/GraphWriter.cpp @@ -59,7 +59,9 @@ void llvm::DisplayGraph(const sys::Path &Filename) { args.push_back(PSFilename.c_str()); args.push_back(0); - sys::Program::ExecuteAndWait(gv, &args[0]); + if (sys::Program::ExecuteAndWait(gv, &args[0])) { + std::cerr << "Error viewing graph: 'gv' not in path?\n"; + } } PSFilename.eraseFromDisk(); #elif HAVE_DOTTY |