[libc-commits] [libc] [libc] Add limits.h header. (PR #78887)

[Nick Desaulniers via libc-commits]

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@@ -9,8 +9,20 @@
 #ifndef __LLVM_LIBC_MACROS_FLOAT_MACROS_H
 #define __LLVM_LIBC_MACROS_FLOAT_MACROS_H
 
+// Suppress `#include_next is a language extension` warnings.
+#ifdef __clang__
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wgnu-include-next"
+#else // gcc
+#pragma GCC system_header
+#endif //__clang__
+
 #include_next <float.h>
 
+#ifdef __clang__
+#pragma GCC diagnostic pop
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nickdesaulniers wrote:

If you're only using these pragmas for clang, then please use `#pragma clang` rather than `#pragma GCC`.

https://github.com/llvm/llvm-project/pull/78887