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Port ATTRIBUTE_MAY_ALIAS to recent icc

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* src/conf_post.h (ATTRIBUTE_MAY_ALIAS) [__ICC]:
Define to empty.  Otherwise, icc (ICC) 17.0.4 20170411 says
“warning #2621: attribute "__may_alias__" does not apply here”
for constructs like ‘struct sockaddr *sa = (whatever);
struct sockaddr_in __attribute__ ((__may_alias__)) *sin
= (struct sockaddr_in *) sa;’.
This commit is contained in:
Paul Eggert 2017-05-25 00:24:51 -07:00
parent 9ebc2bbe3c
commit d7284da858
1 changed files with 1 additions and 1 deletions
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2
src/conf_post.h
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@ -263,7 +263,7 @@ extern int emacs_setenv_TZ (char const *);
#define ATTRIBUTE_CONST _GL_ATTRIBUTE_CONST
#define ATTRIBUTE_UNUSED _GL_UNUSED
#if GNUC_PREREQ (3, 3, 0)
#if GNUC_PREREQ (3, 3, 0) && !defined __ICC
# define ATTRIBUTE_MAY_ALIAS __attribute__ ((__may_alias__))
#else
# define ATTRIBUTE_MAY_ALIAS