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Diffstat (limited to 'acinclude.m4')
| -rw-r--r-- | acinclude.m4 | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/acinclude.m4 b/acinclude.m4 index e69de29b..70d82e4b 100644 --- a/acinclude.m4 +++ b/acinclude.m4 | |||
| @@ -0,0 +1,78 @@ | |||
| 1 | dnl @synopsis ACX_WHICH_GETHOSTBYNAME_R | ||
| 2 | dnl | ||
| 3 | dnl Provides a test to determine the correct way to call gethostbyname_r | ||
| 4 | dnl | ||
| 5 | dnl defines HAVE_GETHOSTBYNAME_R to the number of arguments required | ||
| 6 | dnl | ||
| 7 | dnl e.g. 6 arguments (linux) | ||
| 8 | dnl e.g. 5 arguments (solaris) | ||
| 9 | dnl e.g. 3 arguments (osf/1) | ||
| 10 | dnl | ||
| 11 | dnl @version $Id$ | ||
| 12 | dnl @author Brian Stafford <brian@stafford.uklinux.net> | ||
| 13 | dnl | ||
| 14 | dnl based on version by Caolan McNamara <caolan@skynet.ie> | ||
| 15 | dnl based on David Arnold's autoconf suggestion in the threads faq | ||
| 16 | dnl | ||
| 17 | AC_DEFUN(ACX_WHICH_GETHOSTBYNAME_R, | ||
| 18 | [AC_CACHE_CHECK(number of arguments to gethostbyname_r, | ||
| 19 | acx_which_gethostbyname_r, [ | ||
| 20 | AC_TRY_COMPILE([ | ||
| 21 | # include <netdb.h> | ||
| 22 | ], [ | ||
| 23 | |||
| 24 | char *name; | ||
| 25 | struct hostent *he; | ||
| 26 | struct hostent_data data; | ||
| 27 | (void) gethostbyname_r(name, he, &data); | ||
| 28 | |||
| 29 | ],acx_which_gethostbyname_r=3, | ||
| 30 | [ | ||
| 31 | dnl acx_which_gethostbyname_r=0 | ||
| 32 | AC_TRY_COMPILE([ | ||
| 33 | # include <netdb.h> | ||
| 34 | ], [ | ||
| 35 | char *name; | ||
| 36 | struct hostent *he, *res; | ||
| 37 | char *buffer = NULL; | ||
| 38 | int buflen = 2048; | ||
| 39 | int h_errnop; | ||
| 40 | (void) gethostbyname_r(name, he, buffer, buflen, &res, &h_errnop) | ||
| 41 | ],acx_which_gethostbyname_r=6, | ||
| 42 | |||
| 43 | [ | ||
| 44 | dnl acx_which_gethostbyname_r=0 | ||
| 45 | AC_TRY_COMPILE([ | ||
| 46 | # include <netdb.h> | ||
| 47 | ], [ | ||
| 48 | char *name; | ||
| 49 | struct hostent *he; | ||
| 50 | char *buffer = NULL; | ||
| 51 | int buflen = 2048; | ||
| 52 | int h_errnop; | ||
| 53 | (void) gethostbyname_r(name, he, buffer, buflen, &h_errnop) | ||
| 54 | ],acx_which_gethostbyname_r=5,acx_which_gethostbyname_r=0) | ||
| 55 | |||
| 56 | ] | ||
| 57 | |||
| 58 | ) | ||
| 59 | ] | ||
| 60 | ) | ||
| 61 | ]) | ||
| 62 | |||
| 63 | if test $acx_which_gethostbyname_r -gt 0 ; then | ||
| 64 | AC_DEFINE_UNQUOTED([HAVE_GETHOSTBYNAME_R], $acx_which_gethostbyname_r, | ||
| 65 | [Number of parameters to gethostbyname_r or 0 if not available]) | ||
| 66 | fi | ||
| 67 | |||
| 68 | ]) | ||
| 69 | |||
| 70 | dnl @synopsis ACX_HELP_STRING(OPTION,DESCRIPTION) | ||
| 71 | AC_DEFUN([ACX_HELP_STRING], | ||
| 72 | [ $1 builtin([substr],[ ],len($1))[$2]]) | ||
| 73 | |||
| 74 | |||
| 75 | dnl @synopsis ACX_FEATURE(ENABLE_OR_WITH,NAME[,VALUE]) | ||
| 76 | AC_DEFUN([ACX_FEATURE], | ||
| 77 | [echo "builtin([substr],[ ],len(--$1-$2))--$1-$2: ifelse($3,,[$]translit($1-$2,-,_),$3)"]) | ||
| 78 | |||