https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116712
Bug ID: 116712
Summary: -Wlto-type-mismatch should show how the types differ
(just like -Wodr does)
Product: gcc
Version: 14.2.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: lto
Assignee: unassigned at gcc dot gnu.org
Reporter: brunopitrus at hotmail dot com
Target Milestone: ---
Right now, -Wlto-type-mismatch only shows you where the types were declared:
../../third_party/electron_node/src/tracing/agent.h:133: warning: type of
'Disconnect' does not match original declaration [-Wlto-type-mismatch]
133 | void Disconnect(int client);
../../third_party/electron_node/src/tracing/agent.cc:162: note: 'Disconnect'
was previously declared here
162 | void Agent::Disconnect(int client) {
This is useless for diagnosis when the root cause was headers compiled with
mismatching preprocessor flags. (Even something like bug 116344 would have
slightly helped as you could then run the preprocessor on both fles)
