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- /*
- * Copyright (c) 2020 Dmitry V. Levin <ldv@altlinux.org>
- */
- #ifndef PAM_CC_COMPAT_H
- #define PAM_CC_COMPAT_H
- #include "config.h"
- #include <security/_pam_types.h>
- #if defined __clang__ && defined __clang_major__ && defined __clang_minor__
- # define PAM_CLANG_PREREQ(maj, min) \
- ((__clang_major__ << 16) + __clang_minor__ >= ((maj) << 16) + (min))
- #else
- # define PAM_CLANG_PREREQ(maj, min) 0
- #endif
- #if PAM_GNUC_PREREQ(2, 7)
- # define PAM_ATTRIBUTE_ALIGNED(arg) __attribute__((__aligned__(arg)))
- #else
- # define PAM_ATTRIBUTE_ALIGNED(arg) /* empty */
- #endif
- #if PAM_GNUC_PREREQ(4, 6)
- # define DIAG_PUSH_IGNORE_CAST_QUAL \
- _Pragma("GCC diagnostic push"); \
- _Pragma("GCC diagnostic ignored \"-Wcast-qual\"")
- # define DIAG_POP_IGNORE_CAST_QUAL \
- _Pragma("GCC diagnostic pop")
- # define DIAG_PUSH_IGNORE_CAST_ALIGN \
- _Pragma("GCC diagnostic push"); \
- _Pragma("GCC diagnostic ignored \"-Wcast-align\"")
- # define DIAG_POP_IGNORE_CAST_ALIGN \
- _Pragma("GCC diagnostic pop")
- #elif PAM_CLANG_PREREQ(2, 6)
- # define DIAG_PUSH_IGNORE_CAST_QUAL \
- _Pragma("clang diagnostic push"); \
- _Pragma("clang diagnostic ignored \"-Wcast-qual\"")
- # define DIAG_POP_IGNORE_CAST_QUAL \
- _Pragma("clang diagnostic pop")
- # define DIAG_PUSH_IGNORE_CAST_ALIGN \
- _Pragma("clang diagnostic push"); \
- _Pragma("clang diagnostic ignored \"-Wcast-align\"")
- # define DIAG_POP_IGNORE_CAST_ALIGN \
- _Pragma("clang diagnostic pop")
- #else
- # define DIAG_PUSH_IGNORE_CAST_QUAL /* empty */
- # define DIAG_POP_IGNORE_CAST_QUAL /* empty */
- # define DIAG_PUSH_IGNORE_CAST_ALIGN /* empty */
- # define DIAG_POP_IGNORE_CAST_ALIGN /* empty */
- #endif
- /*
- * Evaluates to
- * 1, if the given two types are known to be the same
- * 0, otherwise.
- */
- #if PAM_GNUC_PREREQ(3, 0)
- # define PAM_IS_SAME_TYPE(x_, y_) \
- __builtin_types_compatible_p(__typeof__(x_), __typeof__(y_))
- #else
- /* Cannot tell whether these types are the same. */
- # define PAM_IS_SAME_TYPE(x_, y_) 0
- #endif
- #endif /* PAM_CC_COMPAT_H */
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