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Cygwin: unbreak the build with GCC 7

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The recent port to GCC 8 used the 'nonstring' attribute, which is
unknown to GCC 7.  Define and use an 'ATTRIBUTE_NONSTRING' macro
instead.
This commit is contained in:
Ken Brown 2019-07-19 14:14:33 -04:00
parent 3a956a9bc3
commit 6b7723a830
2 changed files with 15 additions and 4 deletions
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11
winsup/cygwin/include/sys/utmp.h
View File

@ -19,16 +19,21 @@ extern "C" {
#define ut_name ut_user
#endif
#if __GNUC__ >= 8
#define ATTRIBUTE_NONSTRING __attribute__ ((nonstring))
#else
#define ATTRIBUTE_NONSTRING
#endif
struct utmp
{
short ut_type;
pid_t ut_pid;
char ut_line[UT_LINESIZE] __attribute__ ((nonstring));
char ut_line[UT_LINESIZE] ATTRIBUTE_NONSTRING;
char ut_id[UT_IDLEN];
time_t ut_time;
char ut_user[UT_NAMESIZE] __attribute__ ((nonstring));
char ut_host[UT_HOSTSIZE] __attribute__ ((nonstring));
char ut_user[UT_NAMESIZE] ATTRIBUTE_NONSTRING;
char ut_host[UT_HOSTSIZE] ATTRIBUTE_NONSTRING;
long ut_addr;
};

8
winsup/cygwin/uname.cc
View File

@ -17,6 +17,12 @@ details. */
extern "C" int cygwin_gethostname (char *__name, size_t __len);
extern "C" int getdomainname (char *__name, size_t __len);
#if __GNUC__ >= 8
#define ATTRIBUTE_NONSTRING __attribute__ ((nonstring))
#else
#define ATTRIBUTE_NONSTRING
#endif
/* uname: POSIX 4.4.1.1 */
/* New entrypoint for applications since API 335 */
@ -25,7 +31,7 @@ uname_x (struct utsname *name)
{
__try
{
char buf[NI_MAXHOST + 1] __attribute__ ((nonstring));
char buf[NI_MAXHOST + 1] ATTRIBUTE_NONSTRING;
char *snp = strstr (cygwin_version.dll_build_date, "SNP");
memset (name, 0, sizeof (*name));