Thank you! After replacing the outdated centOS operating system and
compiling for eight hours（That's carzy to me）, I have successfully
installed and built gcc😂😂
Jonathan Wakely <jwakely....@gmail.com> 于 2025年3月8日周六 下午5:25写道：
>
>
> On Sat, 8 Mar 2025, 08:43 LIU Hao via Gcc, <gcc@gcc.gnu.org> wrote:
>
>> 在 2025-3-8 15:20, Gwen Fu 写道:
>> > OS : CentOS7
>> > The official documentation doesn't mention any installation requirement
>> about lib{isl , zstd} .
>>
>> [please reply to all.]
>>
>
> But not on this list, it belongs on gcc-help
>
>
>
>> They are mentioned, but are optional:
>> https://gcc.gnu.org/install/prerequisites.html
>>
>>
>> > And I run "../gcc/configure --enable-languages=c,c++,fortran
>> --disable-multilib" and then rerun"make -j 2"
>> > the same error occurred .
>> >
>> > Here is the gcc version:
>> > [gwen@localhost objdir]$ gcc -v
>> > 使用内建 specs。
>> > COLLECT_GCC=gcc
>> >
>> COLLECT_LTO_WRAPPER=/usr/libexec/gcc/x86_64-redhat-linux/4.8.5/lto-wrapper
>>
>> This is caused by failure to compile a simple C++ program, but the cause
>> can vary: Your system might have
>> no c++ compiler (which i think is unlikely), or the existent c++ compiler
>> rejected the program due to an
>> unknown option. You can take a look at the end of config.log.
>>
>>
>>
>>
>> --
>> Best regards,
>> LIU Hao
>>
>
