| Issue |
153232
|
| Summary |
[libc++] Removing C linkage causes build failures where OS provides some POSIX functions
|
| Labels |
libc++,
platform:aix
|
| Assignees |
|
| Reporter |
ZarkoT
|
Small test case:
```
cat vasprintf.cpp
#include <locale>
extern "C" int vasprintf (char **, const char *, va_list);
$>clang++_r -c vasprintf.cpp
vasprintf.cpp:3:16: error: declaration of 'vasprintf' has a different language linkage
3 | extern "C" int vasprintf (char **, const char *, va_list);
| ^
/home/zarko/llvm/dev/build/bin/../include/c++/v1/__locale_dir/locale_base_api/ibm.h:83:48: note: previous definition is here
83 | _LIBCPP_ATTRIBUTE_FORMAT(__printf__, 2, 0) int vasprintf(char** strp, const char* fmt, va_list ap) {
| ^
1 error generated.
```
Looks like it's caused by this change to the linkage: https://github.com/llvm/llvm-project/pull/94102
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