release/18.x: [libc++] Only include <setjmp.h> from the C library if it exists (#81887) #82045
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@mordante What do you think about merging this PR to the release branch? |
llvmbot
added
the
libc++
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@llvm/pr-subscribers-libcxx Author: None (llvmbot) ChangesBackport d8278b6 Requested by: @ldionne Full diff: https://github.com/llvm/llvm-project/pull/82045.diff 1 Files Affected:
diff --git a/libcxx/include/csetjmp b/libcxx/include/csetjmp
index d219c8e6cb2250..9012cad22ebe74 100644
--- a/libcxx/include/csetjmp
+++ b/libcxx/include/csetjmp
@@ -33,7 +33,13 @@ void longjmp(jmp_buf env, int val);
#include <__assert> // all public C++ headers provide the assertion handler
#include <__config>
-#include <setjmp.h>
+// <setjmp.h> is not provided by libc++
+#if __has_include(<setjmp.h>)
+# include <setjmp.h>
+# ifdef _LIBCPP_SETJMP_H
+# error "If libc++ starts defining <setjmp.h>, the __has_include check should move to libc++'s <setjmp.h>"
+# endif
+#endif
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
# pragma GCC system_header
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mordante
approved these changes
Feb 17, 2024
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One of these libc++ tests keeps failing. Is this a real failure? |
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Backport d8278b6
Requested by: @ldionne