On 3/12/25 15:42, Jonathan Wakely wrote:
On Wed, 12 Mar 2025 at 18:38, Dennis Clarke <dclarke@xxxxxxxxxxxxx> wrote:
On 3/12/25 14:06, Jonathan Wakely wrote:
On Wed, 12 Mar 2025 at 17:52, Dennis Clarke wrote:
<snip>
Could you please compile and run this program with this installed gcc-14:
#include <chrono>
#include <iostream>
int main()
{
std::cout << std::chrono::get_tzdb().version << '\n';
}
Yep ... that went sideways :
t$
t$ cat tz_test.cpp
/* per https://gcc.gnu.org/pipermail/gcc-help/2025-March/144067.html */
#include <chrono>
#include <iostream>
int main()
{
std::cout << std::chrono::get_tzdb().version << '\n';
}
t$
t$ /opt/bw/gcc14/bin/g++ -v -c -o tz_test.o tz_test.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
--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 Tue Mar 11 17:29:45
UTC 2025'
Thread model: posix
Supported LTO compression algorithms: zlib
gcc version 14.2.0 (GENUNIX Tue Mar 11 17:29:45 UTC 2025)
COLLECT_GCC_OPTIONS='-v' '-c' '-o' 'tz_test.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 tz_test.cpp -quiet -dumpbase
tz_test.cpp -dumpbase-ext .cpp -mtune=generic -march=x86-64 -version -o
/var/tmp/dclarke/ccyvfIUO.s
GNU C++17 (GENUNIX Tue Mar 11 17:29:45 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 "/usr/local/include/x86_64-linux-gnu"
ignoring nonexistent directory "/usr/local/include"
ignoring nonexistent directory
"/opt/bw/gcc14/lib/gcc/x86_64-linux-gnu/14.2.0/include-fixed/x86_64-linux-gnu"
ignoring nonexistent directory
"/opt/bw/gcc14/lib/gcc/x86_64-linux-gnu/14.2.0/../../../../x86_64-linux-gnu/include"
#include "..." search starts here:
#include <...> search starts here:
/opt/bw/gcc14/lib/gcc/x86_64-linux-gnu/14.2.0/../../../../include/c++/14.2.0
/opt/bw/gcc14/lib/gcc/x86_64-linux-gnu/14.2.0/../../../../include/c++/14.2.0/x86_64-linux-gnu
/opt/bw/gcc14/lib/gcc/x86_64-linux-gnu/14.2.0/../../../../include/c++/14.2.0/backward
/opt/bw/gcc14/lib/gcc/x86_64-linux-gnu/14.2.0/include
/opt/bw/gcc14/include
/opt/bw/gcc14/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: 535b3d6b2f041edb1bee904d2c29ef0f
tz_test.cpp: In function 'int main()':
tz_test.cpp:9:29: error: 'get_tzdb' is not a member of 'std::chrono'
9 | std::cout << std::chrono::get_tzdb().version << '\n';
| ^~~~~~~~
t$
hrmmm ... baffling fail for me.
--
--
Dennis Clarke
RISC-V/SPARC/PPC/ARM/CISC
UNIX and Linux spoken
