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.]

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

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