diff options
Diffstat (limited to 'contrib/llvm-project/libcxx/include/csignal')
| -rw-r--r-- | contrib/llvm-project/libcxx/include/csignal | 22 |
1 files changed, 15 insertions, 7 deletions
diff --git a/contrib/llvm-project/libcxx/include/csignal b/contrib/llvm-project/libcxx/include/csignal index 99abd02de066..cf45f507535e 100644 --- a/contrib/llvm-project/libcxx/include/csignal +++ b/contrib/llvm-project/libcxx/include/csignal @@ -1,5 +1,5 @@ // -*- C++ -*- -//===--------------------------- csignal ----------------------------------===// +//===----------------------------------------------------------------------===// // // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. // See https://llvm.org/LICENSE.txt for license information. @@ -39,19 +39,27 @@ int raise(int sig); */ +#include <__assert> // all public C++ headers provide the assertion handler #include <__config> -#include <signal.h> + +// <signal.h> is not provided by libc++ +#if __has_include(<signal.h>) +# include <signal.h> +# ifdef _LIBCPP_SIGNAL_H +# error "If libc++ starts defining <signal.h>, the __has_include check should move to libc++'s <signal.h>" +# endif +#endif #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) -#pragma GCC system_header +# pragma GCC system_header #endif _LIBCPP_BEGIN_NAMESPACE_STD -using ::sig_atomic_t; -using ::signal; -using ::raise; +using ::sig_atomic_t _LIBCPP_USING_IF_EXISTS; +using ::signal _LIBCPP_USING_IF_EXISTS; +using ::raise _LIBCPP_USING_IF_EXISTS; _LIBCPP_END_NAMESPACE_STD -#endif // _LIBCPP_CSIGNAL +#endif // _LIBCPP_CSIGNAL |