mirror of
https://code.videolan.org/videolan/vlc
synced 2024-10-03 01:31:53 +02:00
Add replacement for GNU ffsll()
This commit is contained in:
parent
a1adede15f
commit
67888a9779
33
compat/ffsll.c
Normal file
33
compat/ffsll.c
Normal file
@ -0,0 +1,33 @@
|
||||
/*****************************************************************************
|
||||
* ffsllp.c: GNU ffsll() replacement
|
||||
*****************************************************************************
|
||||
* Copyright © 2015 Rémi Denis-Courmont
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify it
|
||||
* under the terms of the GNU Lesser General Public License as published by
|
||||
* the Free Software Foundation; either version 2.1 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public License
|
||||
* along with this program; if not, write to the Free Software Foundation,
|
||||
* Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
|
||||
*****************************************************************************/
|
||||
|
||||
#ifdef HAVE_CONFIG_H
|
||||
# include <config.h>
|
||||
#endif
|
||||
|
||||
#include <limits.h>
|
||||
|
||||
int ffsll(unsigned long long x)
|
||||
{
|
||||
for (unsigned i = 0; i < sizeof (x) * CHAR_BIT; i++)
|
||||
if ((x >> i) & 1)
|
||||
return i + 1;
|
||||
return 0;
|
||||
}
|
@ -554,7 +554,7 @@ need_libc=false
|
||||
dnl Check for usual libc functions
|
||||
AC_CHECK_DECLS([nanosleep],,,[#include <time.h>])
|
||||
AC_CHECK_FUNCS([daemon fcntl fstatvfs fork getenv getpwuid_r isatty lstat memalign mmap open_memstream openat pread posix_fadvise posix_madvise setlocale stricmp strnicmp strptime uselocale pthread_cond_timedwait_monotonic_np pthread_condattr_setclock])
|
||||
AC_REPLACE_FUNCS([atof atoll dirfd fdopendir flockfile fsync getdelim getpid lldiv nrand48 poll posix_memalign rewind setenv strcasecmp strcasestr strdup strlcpy strndup strnlen strsep strtof strtok_r strtoll swab tdestroy strverscmp])
|
||||
AC_REPLACE_FUNCS([atof atoll dirfd fdopendir ffsll flockfile fsync getdelim getpid lldiv nrand48 poll posix_memalign rewind setenv strcasecmp strcasestr strdup strlcpy strndup strnlen strsep strtof strtok_r strtoll swab tdestroy strverscmp])
|
||||
AC_CHECK_FUNCS(fdatasync,,
|
||||
[AC_DEFINE(fdatasync, fsync, [Alias fdatasync() to fsync() if missing.])
|
||||
])
|
||||
|
@ -120,6 +120,10 @@ int vasprintf (char **, const char *, va_list);
|
||||
#endif
|
||||
|
||||
/* string.h */
|
||||
#ifndef HAVE_FFSLL
|
||||
int ffsll(unsigned long long);
|
||||
#endif
|
||||
|
||||
#ifndef HAVE_STRCASECMP
|
||||
int strcasecmp (const char *, const char *);
|
||||
#endif
|
||||
|
Loading…
Reference in New Issue
Block a user