On 3/11/25 05:48, Jonathan Wakely wrote:
On Tue, 11 Mar 2025 at 01:17, Dennis Clarke via Gcc-help
<gcc-help@xxxxxxxxxxx> wrote:
<snip>
...
triton$ which g++
/opt/bw/gcc14/bin/g++
triton$ g++ --version
g++ (GENUNIX Mon Mar 10 18:16:45 UTC 2025) 14.2.0
Copyright (C) 2024 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-v would be a lot more interesting and useful here than --version
triton$
triton$ /opt/bw/gcc14/bin/g++ -v -O0 -g -c -o nothing.o nothing.cpp
Using built-in specs.
COLLECT_GCC=/opt/bw/gcc14/bin/g++
Target: x86_64-linux-gnu
Configured with: ../gcc-14.2.0/configure --prefix=/opt/bw/gcc14
--with-gnu-as --with-as=/opt/bw/bin/gas --with-gnu-ld
--with-ld=/opt/bw/bin/gld --disable-nls --disable-multilib
--enable-threads=posix --enable-shared
--with-build-time-tools=/opt/bw/bin --enable-bootstrap
--with-tune=generic --enable-linker-build-id --without-cuda-driver
--enable-__cxa_atexit --with-default-libstdcxx-abi=new --enable-tls
--libdir=/opt/bw/lib --enable-gnu-unique-object --enable-default-pie
--with-abi=m64 --build=x86_64-linux-gnu --host=x86_64-linux-gnu
--target=x86_64-linux-gnu --with-pkgversion='GENUNIX Mon Mar 10 18:16:45
UTC 2025'
Thread model: posix
Supported LTO compression algorithms: zlib
gcc version 14.2.0 (GENUNIX Mon Mar 10 18:16:45 UTC 2025)
COLLECT_GCC_OPTIONS='-v' '-O0' '-g' '-c' '-o' 'nothing.o'
'-shared-libgcc' '-mtune=generic' '-march=x86-64'
/opt/bw/gcc14/libexec/gcc/x86_64-linux-gnu/14.2.0/cc1plus -quiet -v
-imultiarch x86_64-linux-gnu -D_GNU_SOURCE nothing.cpp -quiet -dumpbase
nothing.cpp -dumpbase-ext .cpp -mtune=generic -march=x86-64 -g -O0
-version -o /var/tmp/dclarke/ccWAOqJZ.s
GNU C++17 (GENUNIX Mon Mar 10 18:16:45 UTC 2025) version 14.2.0
(x86_64-linux-gnu)
compiled by GNU C version 14.2.0, GMP version 6.3.0, MPFR
version 4.2.1, MPC version 1.3.1, isl version isl-0.24-GMP
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
ignoring nonexistent directory
"/opt/bw/lib/gcc/x86_64-linux-gnu/14.2.0/../../../../../../include/c++/14.2.0"
ignoring nonexistent directory
"/opt/bw/lib/gcc/x86_64-linux-gnu/14.2.0/../../../../../../include/c++/14.2.0/x86_64-linux-gnu"
ignoring nonexistent directory
"/opt/bw/lib/gcc/x86_64-linux-gnu/14.2.0/../../../../../../include/c++/14.2.0/backward"
ignoring nonexistent directory "/usr/local/include/x86_64-linux-gnu"
ignoring nonexistent directory "/usr/local/include"
ignoring nonexistent directory
"/opt/bw/lib/gcc/x86_64-linux-gnu/14.2.0/include-fixed/x86_64-linux-gnu"
ignoring nonexistent directory
"/opt/bw/lib/gcc/x86_64-linux-gnu/14.2.0/../../../../../../x86_64-linux-gnu/include"
#include "..." search starts here:
#include <...> search starts here:
/opt/bw/lib/gcc/x86_64-linux-gnu/14.2.0/include
/opt/bw/gcc14/include
/opt/bw/lib/gcc/x86_64-linux-gnu/14.2.0/include-fixed
/usr/include/x86_64-linux-gnu
/usr/include
End of search list.
Compiler executable checksum: e18fc208d61cc85a2a920d8c55c96a4b
nothing.cpp:2:10: fatal error: iostream: No such file or directory
2 | #include <iostream>
| ^~~~~~~~~~
compilation terminated.
triton$
Well that tells a story right there.
* * * looks to be a good compiler * * *
see https://gcc.gnu.org/pipermail/gcc-testresults/2025-March/840512.html
I'm curious why these are failing:
FAIL: std/time/exceptions.cc -std=gnu++20 execution test
FAIL: std/time/exceptions.cc -std=gnu++26 execution test
FAIL: std/time/time_zone/get_info_local.cc -std=gnu++20 execution test
FAIL: std/time/time_zone/get_info_local.cc -std=gnu++26 execution test
FAIL: std/time/time_zone/get_info_sys.cc -std=gnu++20 execution test
FAIL: std/time/time_zone/get_info_sys.cc -std=gnu++26 execution test
FAIL: std/time/tzdb/1.cc -std=gnu++20 execution test
FAIL: std/time/tzdb/1.cc -std=gnu++26 execution test
FAIL: std/time/zoned_time/1.cc -std=gnu++20 execution test
FAIL: std/time/zoned_time/1.cc -std=gnu++26 execution test
FAIL: std/time/zoned_time/custom.cc -std=gnu++20 execution test
FAIL: std/time/zoned_time/custom.cc -std=gnu++26 execution test
FAIL: std/time/zoned_time/io.cc -std=gnu++20 execution test
FAIL: std/time/zoned_time/io.cc -std=gnu++26 execution test
FAIL: libstdc++-prettyprinters/chrono.cc execution test
FAIL: libstdc++-prettyprinters/chrono.cc execution test
Good question. However I think the real issue was way back in the
configure stage where I had --libdir=/opt/bw/lib in there. That
really is not needed.
I am going to re-bootstrap without that.
--
Dennis Clarke
RISC-V/SPARC/PPC/ARM/CISC
UNIX and Linux spoken
