smeenai created this revision. Some CRT APIs are unavailable for Windows Store apps [1]. Detect when we're targeting the Windows Store and don't try to refer to non-existent CRT functions in that case. (This would otherwise lead to a compile error when using the libc++ headers and compiling for Windows Store.)
[1] https://docs.microsoft.com/en-us/cpp/cppcx/crt-functions-not-supported-in-universal-windows-platform-apps https://reviews.llvm.org/D31737 Files: include/__config include/cstdlib Index: include/cstdlib =================================================================== --- include/cstdlib +++ include/cstdlib @@ -130,8 +130,10 @@ using ::atexit; using ::exit; using ::_Exit; +#ifndef _LIBCPP_WINDOWS_STORE_APP using ::getenv; using ::system; +#endif using ::bsearch; using ::qsort; using ::abs; Index: include/__config =================================================================== --- include/__config +++ include/__config @@ -211,6 +211,16 @@ # if defined(_LIBCPP_MSVCRT) # define _LIBCPP_HAS_QUICK_EXIT # endif + +// Some CRT APIs are unavailable to store apps +#if defined(WINAPI_FAMILY) +#include <winapifamily.h> +#if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP) && \ + (!defined(WINAPI_PARTITION_SYSTEM) || \ + !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_SYSTEM)) +#define _LIBCPP_WINDOWS_STORE_APP +#endif +#endif #endif // defined(_WIN32) #ifdef __sun__
Index: include/cstdlib =================================================================== --- include/cstdlib +++ include/cstdlib @@ -130,8 +130,10 @@ using ::atexit; using ::exit; using ::_Exit; +#ifndef _LIBCPP_WINDOWS_STORE_APP using ::getenv; using ::system; +#endif using ::bsearch; using ::qsort; using ::abs; Index: include/__config =================================================================== --- include/__config +++ include/__config @@ -211,6 +211,16 @@ # if defined(_LIBCPP_MSVCRT) # define _LIBCPP_HAS_QUICK_EXIT # endif + +// Some CRT APIs are unavailable to store apps +#if defined(WINAPI_FAMILY) +#include <winapifamily.h> +#if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP) && \ + (!defined(WINAPI_PARTITION_SYSTEM) || \ + !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_SYSTEM)) +#define _LIBCPP_WINDOWS_STORE_APP +#endif +#endif #endif // defined(_WIN32) #ifdef __sun__
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