https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99642
Bug ID: 99642
Summary: Compiler error while using precompiled header and
-Wmismatched-tags flag
Product: gcc
Version: 10.2.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: alexey.ismagilov at rfdyn dot ru
Target Milestone: ---
Steps to reproduce:
===================
$ cat pch.h
#include <string>
$ cat main.cpp
#include <fstream>
#include "pch.h"
int main () {}
$ /usr/bin/g++ -Wmismatched-tags -c pch.h -o pch.h.gch
$ /usr/bin/g++ -Wmismatched-tags -include pch.h main.cpp
main.cpp:3:14: internal compiler error: in diag_mismatched_tags, at
cp/parser.c:31360
3 | int main () {}
| ^
Please submit a full bug report,
with preprocessed source if appropriate.
See <https://bugs.archlinux.org/> for instructions.
Additional info:
================
$ /usr/bin/g++ -v
Using built-in specs.
COLLECT_GCC=/usr/bin/g++
COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-pc-linux-gnu/10.2.0/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: /build/gcc/src/gcc/configure --prefix=/usr --libdir=/usr/lib
--libexecdir=/usr/lib --mandir=/usr/share/man --infodir=/usr/share/info
--with-bugurl=https://bugs.archlinux.org/
--enable-languages=c,c++,ada,fortran,go,lto,objc,obj-c++,d --with-isl
--with-linker-hash-style=gnu --with-system-zlib --enable-__cxa_atexit
--enable-cet=auto --enable-checking=release --enable-clocale=gnu
--enable-default-pie --enable-default-ssp --enable-gnu-indirect-function
--enable-gnu-unique-object --enable-install-libiberty --enable-linker-build-id
--enable-lto --enable-multilib --enable-plugin --enable-shared
--enable-threads=posix --disable-libssp --disable-libstdcxx-pch
--disable-libunwind-exceptions --disable-werror
gdc_include_dir=/usr/include/dlang/gdc
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 10.2.0 (GCC)
# pacman -F /usr/bin/g++
usr/bin/g++ is owned by core/gcc 10.2.0-6
