nan.h: define NAN only if not already defined · 4e53564f45 - wbx's git sevice

nan.h: define NAN only if not already defined

Clang-19 defines NAN in <float.h>. Check if NAN is already defined to
prevent a compiler warning.

Change-Id: I29ebcb2a7a0c1eade46a73074a1701ea67869128
Signed-off-by: Marcus Haehnel <marcus.haehnel@kernkonzept.com>

Frank Mehnert 3 months ago

parent

97eb10db57

commit

4e53564f45

1 changed files with 3 additions and 1 deletions

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							+ 3
							
							- 1
						
libc/sysdeps/linux/common/bits/nan.h
							 
								View File
							
				@@ -25,7 +25,9 @@
			
				 #if __GNUC_PREREQ(3,3)
			
				-# define NAN	(__builtin_nanf (""))
			
				+# ifndef NAN
			
				+#  define NAN	(__builtin_nanf (""))
			
				+# endif
			
				 #elif defined __GNUC__