gcc 14.2.0 --- php 8.4.0RC3

[spacexnasa]

Description

on centos 7.9 x86_64

checking for iconv implementation... glibc
checking if iconv supports errno... yes
checking if iconv supports //IGNORE... no
checking whether to enable internationalization support... yes
checking for icu-uc >= 50.1 icu-io icu-i18n... yes
checking for x86_64-pc-linux-gnu-g++... x86_64-pc-linux-gnu-g++
checking whether the compiler supports GNU C++... no
checking whether x86_64-pc-linux-gnu-g++ accepts -g... no
checking for x86_64-pc-linux-gnu-g++ option to enable C++11 features... unsupported
checking for x86_64-pc-linux-gnu-g++ option to enable C++98 features... unsupported
checking how to run the C++ preprocessor... x86_64-pc-linux-gnu-g++ -E
checking if intl requires -std=gnu++17... no
checking whether x86_64-pc-linux-gnu-g++ supports C++11 features with -std=c++11... no
checking whether x86_64-pc-linux-gnu-g++ supports C++11 features with +std=c++11... no
checking whether x86_64-pc-linux-gnu-g++ supports C++11 features with -h std=c++11... no
checking whether x86_64-pc-linux-gnu-g++ supports C++11 features with -std=c++0x... no
checking whether x86_64-pc-linux-gnu-g++ supports C++11 features with +std=c++0x... no
checking whether x86_64-pc-linux-gnu-g++ supports C++11 features with -h std=c++0x... no
configure: error: *** A compiler with support for C++11 language features is required.

PHP Version

PHP 8.4.0 RC3

Operating System

CentOS 7.9

[nielsdos]

Can you please share the file config.log ?

[spacexnasa]

Can you please share the file config.log ?

thanks for your reply, and now i removed the --enable-debug , then have no this error message

[spacexnasa]

config.log

[remicollet]

on centos 7.9 x86_64

CentOS 7.9 is a dead distro
https://blog.centos.org/2024/06/june-2024-news/

[nielsdos]

I see some warnings about vexing parses

conftest.cpp: In function 'int main(int, char**)':
conftest.cpp:436:25: warning: empty parentheses were disambiguated as a function declaration [-Wvexing-parse]
  436 |   cxx11test::delegate d2();
      |                         ^~
conftest.cpp:436:25: note: remove parentheses to default-initialize a variable
  436 |   cxx11test::delegate d2();
      |                         ^~
      |                         --

maybe there's an issue in that. But AFAIK this comes from autoconf itself.

[spacexnasa]

I see some warnings about vexing parses

conftest.cpp: In function 'int main(int, char**)':
conftest.cpp:436:25: warning: empty parentheses were disambiguated as a function declaration [-Wvexing-parse]
  436 |   cxx11test::delegate d2();
      |                         ^~
conftest.cpp:436:25: note: remove parentheses to default-initialize a variable
  436 |   cxx11test::delegate d2();
      |                         ^~
      |                         --

maybe there's an issue in that. But AFAIK this comes from autoconf itself.

i have no idea, i removed --enable-debug ,then can compile

[cmb69]

But AFAIK this comes from autoconf itself.

Indeed. And that is with latest autoconf 2.72. From config.log:

uname -r = 3.10.0-1160.119.1.el7.x86_64
[…]
cc (GCC) 14.2.0

It might not be the best idea to use some of the latest software on an otherwise ancient system. ;)

Anyway, nothing we can fix.