fix: Fix crash with empty include filename in preprocessor output (#1075)

1 files changed, 4 insertions, 0 deletions

diff --git a/src/ccache.cpp b/src/ccache.cpp
index 5316d20e..b0c27d06 100644
--- a/src/ccache.cpp
+++ b/src/ccache.cpp
@@ -539,6 +539,10 @@ process_preprocessed_file(Context& ctx, Hash& hash, const std::string& path)
       while (q < end && *q != '"') {
         q++;
       }
+      if (p == q) {
+        // Skip empty file name.
+        continue;
+      }
       // Look for preprocessor flags, after the "filename".
       bool system = false;
       const char* r = q + 1;