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c: adjust _Noreturn to pedantic clang

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Reported by Joe Nelson <joe@begriffs.com>.
https://lists.gnu.org/r/help-bison/2021-01/msg00004.html
Fixed by Paul Eggert in gnulib.
https://lists.gnu.org/r/bug-gnulib/2021-01/msg00156.html

* data/skeletons/c.m4 (b4_attribute_define): Adjust _Noreturn to
pedantic clang.
This commit is contained in:
Akim Demaille
2021-01-12 06:28:13 +01:00
parent 8358090292
commit 1ac973aa56
1 changed files with 9 additions and 7 deletions
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16
data/skeletons/c.m4
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@@ -378,14 +378,16 @@ dnl use C' _Noreturn in C++, to avoid -Wc11-extensions warnings.
&& ((201103 <= __cplusplus && !(__GNUC__ == 4 && __GNUC_MINOR__ == 7)) \
|| (defined _MSC_VER && 1900 <= _MSC_VER)))
# define _Noreturn [[noreturn]]
# elif (!defined __cplusplus \
&& (201112 <= (defined __STDC_VERSION__ ? __STDC_VERSION__ : 0) \
|| 4 < __GNUC__ + (7 <= __GNUC_MINOR__) \
|| (defined __apple_build_version__ \
? 6000000 <= __apple_build_version__ \
: 3 < __clang_major__ + (5 <= __clang_minor__))))
# elif ((!defined __cplusplus || defined __clang__) \
&& (201112 <= (defined __STDC_VERSION__ ? __STDC_VERSION__ : 0) \
|| (!defined __STRICT_ANSI__ \
&& (__4 < __GNUC__ + (7 <= __GNUC_MINOR__) \
|| (defined __apple_build_version__ \
? 6000000 <= __apple_build_version__ \
: 3 < __clang_major__ + (5 <= __clang_minor__))))))
/* _Noreturn works as-is. */
# elif 2 < __GNUC__ + (8 <= __GNUC_MINOR__) || 0x5110 <= __SUNPRO_C
# elif (2 < __GNUC__ + (8 <= __GNUC_MINOR__) || defined __clang__ \
|| 0x5110 <= __SUNPRO_C)
# define _Noreturn __attribute__ ((__noreturn__))
# elif 1200 <= (defined _MSC_VER ? _MSC_VER : 0)
# define _Noreturn __declspec (noreturn)