https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98059
Bug ID: 98059
Summary: [11 regression] Plugins don't compile with c++20
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: plugins
Assignee: unassigned at gcc dot gnu.org
Reporter: s...@li-snyder.org
Target Milestone: ---
The following example fails with gcc 11 (20201128):
$ echo '#include "gcc-plugin.h"' | g++ -x c++ -std=c++20 -c -o x.o - -I`g++
-print-file-name=plugin`/include
In file included from
/usr/local/gcc/lib/gcc/x86_64-pc-linux-gnu/11.0.0/plugin/include/config.h:8,
from
/usr/local/gcc/lib/gcc/x86_64-pc-linux-gnu/11.0.0/plugin/include/gcc-plugin.h:27,
from <stdin>:1:
/usr/local/gcc/lib/gcc/x86_64-pc-linux-gnu/11.0.0/plugin/include/ansidecl.h:424:9:
error: expected unqualified-id before ‘const’
424 | TYPE (const TYPE&) = delete; \
| ^~~~~
/usr/local/gcc/lib/gcc/x86_64-pc-linux-gnu/11.0.0/plugin/include/vec.h:1605:3:
note: in expansion of macro ‘DISABLE_COPY_AND_ASSIGN’
1605 | DISABLE_COPY_AND_ASSIGN(auto_delete_vec<T>);
| ^~~~~~~~~~~~~~~~~~~~~~~
/usr/local/gcc/lib/gcc/x86_64-pc-linux-gnu/11.0.0/plugin/include/ansidecl.h:424:9:
error: expected ‘)’ before ‘const’
424 | TYPE (const TYPE&) = delete; \
| ~^~~~~
/usr/local/gcc/lib/gcc/x86_64-pc-linux-gnu/11.0.0/plugin/include/vec.h:1605:3:
note: in expansion of macro ‘DISABLE_COPY_AND_ASSIGN’
1605 | DISABLE_COPY_AND_ASSIGN(auto_delete_vec<T>);
| ^~~~~~~~~~~~~~~~~~~~~~~
Can be fixed with this patch:
diff --git a/gcc/vec.h b/gcc/vec.h
index 14d77e87342..90904515ea0 100644
--- a/gcc/vec.h
+++ b/gcc/vec.h
@@ -1602,7 +1602,7 @@ class auto_delete_vec : public auto_vec <T *>
~auto_delete_vec ();
private:
- DISABLE_COPY_AND_ASSIGN(auto_delete_vec<T>);
+ DISABLE_COPY_AND_ASSIGN(auto_delete_vec);
};
/* Conditionally allocate heap memory for VEC and its internal vector. */
