tree f4171539553b50bbb75286a2bd4d8424e2147c70
parent 3ab50dc9beb9e7e5eb86918ff2c73a07e5066cac
author Zbigniew Sarbinowski <zibi@ca.ibm.com> 1616770960 +0000
committer Copybara-Service <copybara-worker@google.com> 1618251985 -0700

[SystemZ][z/OS] exclude nasty_macros.h from check-cxx

Need to exclude nasty_macros.h from check-cxx on z/OS due to conflicts within system headers.

Sample failure in `random_shuffle.depr_in_cxx14.verify.cpp` libcxx test.
```
error: 'error' diagnostics seen but not expected:
Line 1268: expected ')'
Line 1268: unknown type name 'This'
Line 1268: expected ')'
```

caused by the following  macros in `nasty_macros.h`
```
#define NASTY_MACRO This should not be expanded!!!
#define _E NASTY_MACRO
```
The name collision is observed in the following code snippet whre `_E` is being used as parameter name:
```
inline int iswalnum(wint_t _E) {return __iswalnum(_E);}
```

It is reasonable to exclude `nasty_macros.h` on z/OS similarly as it was done on Windows.

Reviewed By: #libc, ldionne

Differential Revision: https://reviews.llvm.org/D99378

GitOrigin-RevId: 4d478121f3bfd16129d8fd9de0e05ab9316329a6