On 12/23/25 4:41 AM, Egas Ribeiro wrote:
Regtested and bootstrapped on x86_64-pc-linux-gnu.
Applied, thanks.
-- >8 --
When -MD, -fdeps-format=p1689r5 and -save-temps are used without
explicit output files, they default to the same stream, which is
invalid. The error message attempted to print fdeps_file, but this is
NULL in this case, causing an ICE.
Use out_fname as a fallback when fdeps_file is NULL to avoid the ICE
and provide a meaningful error message.
Fix suggested by Andrew Pinski.
PR c++/121864
gcc/c-family/ChangeLog:
* c-opts.cc (c_common_finish): Use out_fname as fallback when
fdeps_file is NULL in error message.
Signed-off-by: Egas Ribeiro <[email protected]>
---
gcc/c-family/c-opts.cc | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/gcc/c-family/c-opts.cc b/gcc/c-family/c-opts.cc
index 8da51759dfd..4ad5a0278c9 100644
--- a/gcc/c-family/c-opts.cc
+++ b/gcc/c-family/c-opts.cc
@@ -1490,7 +1490,7 @@ c_common_finish (void)
}
if (fdeps_stream == deps_stream && fdeps_stream != stdout)
fatal_error (input_location, "%<-MF%> and %<-fdeps-file=%> cannot share an
output file %s: %m",
- fdeps_file);
+ fdeps_file ? fdeps_file : out_fname);
}
/* For performance, avoid tearing down cpplib's internal structures
