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Fix compile-time check for copy_file_range(2)

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* close fds properly
* define USE_COPY_FILE_RANGE if HAVE_COPY_FILE_RANGE is defined
* avoid errors on cross-compiling environments
This commit is contained in:
Masaki Matsushita 2020-09-12 16:27:14 +09:00
parent 012785ef35
commit 0ac185be40
1 changed files with 6 additions and 3 deletions
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9
configure.ac
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@ -2418,6 +2418,8 @@ main()
fd_in = open("/tmp", O_TMPFILE|O_RDWR, S_IRUSR);
fd_out = open("/tmp", O_TMPFILE|O_WRONLY, S_IWUSR);
ret = syscall(__NR_copy_file_range, fd_in, NULL, fd_out, NULL, 0, 0);
close(fd_in);
close(fd_out);
if (ret == -1) { return 1; }
return 0;
#else
@ -2426,10 +2428,11 @@ main()
}
],
[rb_cv_use_copy_file_range=yes],
[rb_cv_use_copy_file_range=no],
[rb_cv_use_copy_file_range=no])])
AS_IF([test "$rb_cv_use_copy_file_range" = yes], [
AC_DEFINE(USE_COPY_FILE_RANGE)
])
])
AS_CASE(["$ac_cv_func_copy_file_range:$rb_cv_use_copy_file_range"], [*yes*], [
AC_DEFINE(USE_COPY_FILE_RANGE)
])
AS_CASE(["$ac_cv_func_gettimeofday:$ac_cv_func_clock_gettime"],