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Hi, c4c4124473c187b5c4642611390897666c3d3970 added the _Noreturn macro for pre-C11 compilers, but it now throws a new Wundef warning during `make check` for __STDC_VERSION__ which gcc does not define by default. The following patch fixes this in line with other uses of __STDC_VERSION__ in the file. Siddhesh * misc/sys/cdefs.h: Check if __STDC_VERSION__ is defined before checking its value. diff --git a/misc/sys/cdefs.h b/misc/sys/cdefs.h index a5c3224..e6e4e0d 100644 --- a/misc/sys/cdefs.h +++ b/misc/sys/cdefs.h @@ -382,7 +382,8 @@ # define __glibc_likely(cond) (cond) #endif -#if !defined _Noreturn && __STDC_VERSION__ < 201112 && !__GNUC_PREREQ (4,7) +#if (!defined _Noreturn && defined __STDC_VERSION__ \ + && __STDC_VERSION__ < 201112 && !__GNUC_PREREQ (4,7)) # if __GNUC_PREREQ (2,8) # define _Noreturn __attribute__ ((__noreturn__)) # else
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