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| author | Marshall Clow <mclow.lists@gmail.com> | 2016-11-02 17:56:05 +0000 |
|---|---|---|
| committer | Marshall Clow <mclow.lists@gmail.com> | 2016-11-02 17:56:05 +0000 |
| commit | cee23446e1c50ef7c6d6906c9146460a198803fa (patch) | |
| tree | 6b6fc77d0363b19d5ef3f345e4c310fa629d17b3 | |
| parent | e8bb4bcafc90d89f6c1aa9ebdc4d13ebb09c10ea (diff) | |
| download | bcm5719-llvm-cee23446e1c50ef7c6d6906c9146460a198803fa.tar.gz bcm5719-llvm-cee23446e1c50ef7c6d6906c9146460a198803fa.zip | |
Add support for old versions of MacOS to libunwind. Fixes PR22203. Thanks to Jeremy for the bug report and the patch.
llvm-svn: 285845
| -rw-r--r-- | libunwind/include/libunwind.h | 22 |
1 files changed, 18 insertions, 4 deletions
diff --git a/libunwind/include/libunwind.h b/libunwind/include/libunwind.h index b52fe9da002..9d72d48d206 100644 --- a/libunwind/include/libunwind.h +++ b/libunwind/include/libunwind.h @@ -20,12 +20,26 @@ #include <stddef.h> #ifdef __APPLE__ - #include <Availability.h> - #ifdef __arm__ - #define LIBUNWIND_AVAIL __attribute__((unavailable)) + #if __clang__ + #if __has_include(<Availability.h>) + #include <Availability.h> + #endif + #elif __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ >= 1050 + #include <Availability.h> + #endif + + #ifdef __arm__ + #define LIBUNWIND_AVAIL __attribute__((unavailable)) + #elif defined(__OSX_AVAILABLE_STARTING) + #define LIBUNWIND_AVAIL __OSX_AVAILABLE_STARTING(__MAC_10_6, __IPHONE_5_0) + #else + #include <AvailabilityMacros.h> + #ifdef AVAILABLE_MAC_OS_X_VERSION_10_6_AND_LATER + #define LIBUNWIND_AVAIL AVAILABLE_MAC_OS_X_VERSION_10_6_AND_LATER #else - #define LIBUNWIND_AVAIL __OSX_AVAILABLE_STARTING(__MAC_10_6, __IPHONE_5_0) + #define LIBUNWIND_AVAIL __attribute__((unavailable)) #endif + #endif #else #define LIBUNWIND_AVAIL #endif |
