From: Joel Rosdahl <joel@rosdahl.net>
Date: Thu, 9 Apr 2026 07:28:23 +0000 (+0200)
Subject: fix: Handle directory-less path to /FI
X-Git-Tag: v4.13.3~4
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=88ad0be09107ccce013f566e642c1cd698073c0d;p=thirdparty%2Fccache.git

fix: Handle directory-less path to /FI

(cherry picked from commit ca531e3693399f028199cc5688a23bcfb89b93ad)
---

diff --git a/src/ccache/argprocessing.cpp b/src/ccache/argprocessing.cpp
index fbb4a8b1..5fc70ecd 100644
--- a/src/ccache/argprocessing.cpp
+++ b/src/ccache/argprocessing.cpp
@@ -1558,14 +1558,14 @@ process_args(Context& ctx)
 
   // Special case: rewrite /FI arguments relative to the input file.
   if (state.rewrite_FI_args) {
-    auto r = fs::canonical(args_info.input_file.parent_path());
+    auto r = fs::canonical(args_info.input_file);
     if (!r) {
       LOG("Failed to convert {} to absolute: {}",
-          args_info.input_file.parent_path(),
+          args_info.input_file,
           r.error());
       return tl::unexpected(Statistic::internal_error);
     }
-    const auto& abs_input_file_dir = *r;
+    auto abs_input_file_dir = r->parent_path();
     auto rewrite = [&](util::Args& arglist, size_t& i) {
       if (arglist[i].starts_with("/FI") || arglist[i].starts_with("-FI")) {
         if (arglist[i].length() > 3) {