Add -d keepdepfile to preserve depfiles

This is useful when you are developing a tool which generates
GCC-style depfiles.

1 files changed, 5 insertions, 3 deletions

diff --git a/src/build.cc b/src/build.cc
index 0e9a399..ab2460a 100644
--- a/src/build.cc
+++ b/src/build.cc
@@ -892,9 +892,11 @@ bool Builder::ExtractDeps(CommandRunner::Result* result,
       deps_nodes->push_back(state_->GetNode(*i, slash_bits));
     }
 
-    if (disk_interface_->RemoveFile(depfile) < 0) {
-      *err = string("deleting depfile: ") + strerror(errno) + string("\n");
-      return false;
+    if (!g_keep_depfile) {
+      if (disk_interface_->RemoveFile(depfile) < 0) {
+        *err = string("deleting depfile: ") + strerror(errno) + string("\n");
+        return false;
+      }
     }
   } else {
     Fatal("unknown deps type '%s'", deps_type.c_str());