===================================================================
@@ -1,3 +1,8 @@
+2017-08-06 Boris Kolpackov <boris@codesynthesis.com>
+
+ * c-opts.c (c_common_finish): Write dependency information even if
+ there are errors.
+
2017-07-14 David Malcolm <dmalcolm@redhat.com>
* c-common.c (try_to_locate_new_include_insertion_point): New
===================================================================
@@ -1152,8 +1157,11 @@
{
FILE *deps_stream = NULL;
- /* Don't write the deps file if there are errors. */
- if (cpp_opts->deps.style != DEPS_NONE && !seen_error ())
+ /* Note that we write the dependencies even if there are errors. This is
+ useful for handling outdated generated headers that now trigger errors
+ (for example, with #error) which would be resolved by re-generating
+ them. In a sense, this complements -MG. */
+ if (cpp_opts->deps.style != DEPS_NONE)
{
/* If -M or -MM was seen without -MF, default output to the
output stream. */