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So apparently, some platforms don't have ffsll(3).

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The manpage lies; it says that the function is in POSIX, but that's only for
ffs(3), not ffsll(3).


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@232164 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Tilghman Lesher
2009-12-02 03:26:16 +00:00
parent 08ec550c16
commit f46840c107
5 changed files with 24 additions and 3 deletions
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5
configure vendored
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@@ -1,5 +1,5 @@
#! /bin/sh
# From configure.ac Revision: 227579 .
# From configure.ac Revision: 227580 .
# Guess values for system-dependent variables and create Makefiles.
# Generated by GNU Autoconf 2.61 for asterisk 1.6.
#
@@ -16715,7 +16715,8 @@ done
for ac_func in asprintf atexit closefrom dup2 eaccess endpwent euidaccess ftruncate getcwd gethostbyname gethostname getloadavg gettimeofday glob htonll ioperm inet_ntoa isascii localtime_r memchr memmove memset mkdir munmap ntohll putenv re_comp regcomp select setenv socket strcasecmp strcasestr strchr strcspn strdup strerror strlcat strlcpy strncasecmp strndup strnlen strrchr strsep strspn strstr strtod strtol strtold strtoq unsetenv utime vasprintf getpeereid sysctl swapctl
for ac_func in asprintf atexit closefrom dup2 eaccess endpwent euidaccess ffsll ftruncate getcwd gethostbyname gethostname getloadavg gettimeofday glob htonll ioperm inet_ntoa isascii localtime_r memchr memmove memset mkdir munmap ntohll putenv re_comp regcomp select setenv socket strcasecmp strcasestr strchr strcspn strdup strerror strlcat strlcpy strncasecmp strndup strnlen strrchr strsep strspn strstr strtod strtol strtold strtoq unsetenv utime vasprintf getpeereid sysctl swapctl
do
as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
{ echo "$as_me:$LINENO: checking for $ac_func" >&5

2
configure.ac
View File

@@ -390,7 +390,7 @@ AC_FUNC_STRNLEN
AC_FUNC_STRTOD
AC_FUNC_UTIME_NULL
AC_FUNC_VPRINTF
AC_CHECK_FUNCS([asprintf atexit closefrom dup2 eaccess endpwent euidaccess ftruncate getcwd gethostbyname gethostname getloadavg gettimeofday glob htonll ioperm inet_ntoa isascii localtime_r memchr memmove memset mkdir munmap ntohll putenv re_comp regcomp select setenv socket strcasecmp strcasestr strchr strcspn strdup strerror strlcat strlcpy strncasecmp strndup strnlen strrchr strsep strspn strstr strtod strtol strtold strtoq unsetenv utime vasprintf getpeereid sysctl swapctl])
AC_CHECK_FUNCS([asprintf atexit closefrom dup2 eaccess endpwent euidaccess ffsll ftruncate getcwd gethostbyname gethostname getloadavg gettimeofday glob htonll ioperm inet_ntoa isascii localtime_r memchr memmove memset mkdir munmap ntohll putenv re_comp regcomp select setenv socket strcasecmp strcasestr strchr strcspn strdup strerror strlcat strlcpy strncasecmp strndup strnlen strrchr strsep strspn strstr strtod strtol strtold strtoq unsetenv utime vasprintf getpeereid sysctl swapctl])
# NOTE: we use AC_CHECK_LIB to get -lm into the arguments for later checks,
# so that AC_CHECK_FUNCS can detect functions in that library.

3
include/asterisk/autoconfig.h.in
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@@ -232,6 +232,9 @@
/* Define to the version of the Ffmpeg and avcodec library library. */
#undef HAVE_FFMPEG_VERSION
/* Define to 1 if you have the `ffsll' function. */
#undef HAVE_FFSLL
/* Define to 1 if you have the `floor' function. */
#undef HAVE_FLOOR

4
include/asterisk/compat.h
View File

@@ -77,6 +77,10 @@
int __attribute__((format(printf, 2, 3))) asprintf(char **str, const char *fmt, ...);
#endif
#ifndef HAVE_FFSLL
int ffsll(long long n);
#endif
#ifndef HAVE_GETLOADAVG
int getloadavg(double *list, int nelem);
#endif

13
main/strcompat.c
View File

@@ -386,3 +386,16 @@ uint64_t htonll(uint64_t host64)
}
#endif
#ifndef HAVE_FFSLL
int ffsll(long long n)
{
int i;
for (i = 0; i < 64; i++) {
if ((1LL << i) & n) {
return i + 1;
}
}
return 0;
}
#endif