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scst: Restore compatibility with gcc 4.x (RHEL 7.x) (merge r9161 from trunk)

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git-svn-id: http://svn.code.sf.net/p/scst/svn/branches/3.4.x@9204 d57e44dd-8a1f-0410-8b47-8ef2f437770f
This commit is contained in:
Bart Van Assche
2020-12-03 03:39:22 +00:00
parent e9d91d5df3
commit 724a9b76e1
1 changed files with 8 additions and 0 deletions
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8
scst/include/backport.h
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@@ -218,7 +218,15 @@ static inline void *bsg_job_sense(struct bsg_job *job)
* pseudo keyword for switch/case use") # v5.4
*/
#ifndef fallthrough
#ifdef __has_attribute
#if __has_attribute(__fallthrough__)
#define fallthrough __attribute__((__fallthrough__))
#else
#define fallthrough do {} while (0) /* fallthrough */
#endif
#else
#define fallthrough do {} while (0) /* fallthrough */
#endif
#endif
/* <linux/cpumask.h> */