bsekle@DESKTOP-O6T14QF:~$ /opt/gcc-15/bin/g++ -std=c++23 -E -x c++ -v - < /dev/null 2>&1

Using built-in specs.

COLLECT_GCC=/opt/gcc-15/bin/g++

Target: x86_64-pc-linux-gnu

Configured with: ../gcc-15-source/configure --prefix=/opt/gcc-15 --disable-multilib --enable-languages=c,c++

Thread model: posix

Supported LTO compression algorithms: zlib zstd

gcc version 15.1.0 (GCC)

COLLECT_GCC_OPTIONS='-std=c++23' '-E' '-v' '-shared-libgcc' '-mtune=generic' '-march=x86-64'

 /opt/gcc-15/libexec/gcc/x86_64-pc-linux-gnu/15.1.0/cc1plus -E -quiet -v -imultiarch x86_64-linux-gnu -D_GNU_SOURCE - -mtune=generic -march=x86-64 -std=c++23 -dumpbase -

ignoring nonexistent directory "/usr/local/include/x86_64-linux-gnu"

ignoring nonexistent directory "/opt/gcc-15/lib/gcc/x86_64-pc-linux-gnu/15.1.0/include-fixed/x86_64-linux-gnu"

ignoring nonexistent directory "/opt/gcc-15/lib/gcc/x86_64-pc-linux-gnu/15.1.0/../../../../x86_64-pc-linux-gnu/include"

#include "..." search starts here:

#include <...> search starts here:

 /opt/gcc-15/lib/gcc/x86_64-pc-linux-gnu/15.1.0/../../../../include/c++/15.1.0

 /opt/gcc-15/lib/gcc/x86_64-pc-linux-gnu/15.1.0/../../../../include/c++/15.1.0/x86_64-pc-linux-gnu

 /opt/gcc-15/lib/gcc/x86_64-pc-linux-gnu/15.1.0/../../../../include/c++/15.1.0/backward

 /opt/gcc-15/lib/gcc/x86_64-pc-linux-gnu/15.1.0/include

 /usr/local/include

 /opt/gcc-15/include

 /opt/gcc-15/lib/gcc/x86_64-pc-linux-gnu/15.1.0/include-fixed

 /usr/include/x86_64-linux-gnu

 /usr/include

End of search list.

# 0 "<stdin>"

# 0 "<built-in>"

# 0 "<command-line>"

# 1 "/usr/include/stdc-predef.h" 1 3 4

# 0 "<command-line>" 2

# 1 "<stdin>"

COMPILER_PATH=/opt/gcc-15/libexec/gcc/x86_64-pc-linux-gnu/15.1.0/:/opt/gcc-15/libexec/gcc/x86_64-pc-linux-gnu/15.1.0/:/opt/gcc-15/libexec/gcc/x86_64-pc-linux-gnu/:/opt/gcc-15/lib/gcc/x86_64-pc-linux-gnu/15.1.0/:/opt/gcc-15/lib/gcc/x86_64-pc-linux-gnu/

LIBRARY_PATH=/opt/gcc-15/lib/gcc/x86_64-pc-linux-gnu/15.1.0/:/opt/gcc-15/lib/gcc/x86_64-pc-linux-gnu/15.1.0/../../../../lib64/:/lib/x86_64-linux-gnu/:/lib/../lib64/:/usr/lib/x86_64-linux-gnu/:/usr/lib/../lib64/:/opt/gcc-15/lib/gcc/x86_64-pc-linux-gnu/15.1.0/../../../:/lib/:/usr/lib/

COLLECT_GCC_OPTIONS='-std=c++23' '-E' '-v' '-shared-libgcc' '-mtune=generic' '-march=x86-64'