cpu_feature_disp.c:(.text+0x4aca88): undefined reference to `getenv' and `__errno_location'

[yangjunl]

In my project, I need to use the library icc/compiler/lib/intel64_lin/libirc.a, But when link it, then appear link error:

ld.bfd: module.o: in function `__intel_cpu_features_init_body':
cpu_feature_disp.c:(.text+0x4aca88): undefined reference to `getenv'
ld.bfd: cpu_feature_disp.c:(.text+0x4aca90): undefined reference to `__errno_location'

I find the symbol in glibc, but I want to know whether the library libirc.a depend on glibc?

The version icc is show attached picture.

[SantoshY_Intel]

Hi,

Thanks for reaching out to us.

Could you please provide us with the below details?

1. The operating system and its version.
2. A sample reproducer code.
3. Steps to reproduce your issue with the commands being used for linking.
4. Is the Base Toolkit installed on your machine?

>>"I find the symbol in glibc"

Could you please let us know how you find the symbol in glibc?

Thanks & Regards,

Santosh

[SantoshY_Intel]

Hi,

We haven't heard back from you. Could you please provide the above-requested details to investigate more on your issue?

Thanks & Regards,

Santosh

[yangjunl]

Hi, thanks for your reply, because the project is confidential, so I can't give the scenario directly. But I will try to make a similar scenario by my self later, and then reply you again.

[SantoshY_Intel · Accepted solution]

Hi,

>>"I want to know whether the library libirc.a depend on glibc?"

The Intel® C++ Compiler Classic supplies additional libraries(include the Intel® Math Library (libimf), the Short Vector Math Library (libsvml), libirc, as well as others) that contain optimized implementations of many commonly used functions. These libraries are linked in by default.

Intel® C++ Compiler Classic System Requirements says that GLIBC version - 2.17 - 20.33 is needed.

So, libirc depends on GLIBC.

Could you please confirm whether to keep the thread open or close for the time being? You can post a new thread once you have the sample scenario ready.

Thanks & Regards,

Santosh

[SantoshY_Intel]

Hi,

Thanks for accepting our solution. If you need any additional information, please post a new question as this thread will no longer be monitored by Intel.

Thanks & Regards,

Santosh