- [libgettext] fix clang-cl

[SSE4]

closes: #9972

Specify library name and version: libgettext/all

This is also a good place to share with all of us why you are submitting this PR (specially if it is a new addition to ConanCenter): is it a dependency of other libraries you want to package? Are you the author of the library? Thanks!

---

• I've read the guidelines for contributing.
• I've followed the PEP8 style guides for Python code in the recipes.
• I've used the latest Conan client version.
• I've tried at least one configuration locally with the
  conan-center hook activated.

[conan-center-bot]

All green in build 3 (9b3e405695851d0b6542f81447c8dfa9f75741dd):

• libgettext/0.21@:
  All packages built successfully! (All logs)

• libgettext/0.20.1@:
  All packages built successfully! (All logs)

[jgsogo]

It looks like Clang CL probably needs some help from the Conan side. I see some PRs with the same code

[SSE4]

It looks like Clang CL probably needs some help from the Conan side. I see some PRs with the same code

yes, it needs. please take a look (and reply): conan-io/conan#10955