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df63503dc2
was modified for IPv6. Use a robust definition of struct sockaddr_storage, do a proper configure test to see if ss_len exists, don't assume that getnameinfo() will handle AF_UNIX sockets, don't trust getaddrinfo to return the protocol we ask for, etc. This incorporates several outstanding patches from Kurt Roeckx, but I'm to blame for anything that doesn't work ...
216 lines
7.1 KiB
Plaintext
216 lines
7.1 KiB
Plaintext
# Macros that test various C library quirks
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# $Header: /cvsroot/pgsql/config/c-library.m4,v 1.23 2003/07/23 23:30:39 tgl Exp $
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# PGAC_VAR_INT_TIMEZONE
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# ---------------------
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# Check if the global variable `timezone' exists. If so, define
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# HAVE_INT_TIMEZONE.
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AC_DEFUN([PGAC_VAR_INT_TIMEZONE],
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[AC_CACHE_CHECK(for int timezone, pgac_cv_var_int_timezone,
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[AC_TRY_LINK([#include <time.h>
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int res;],
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[res = timezone / 60;],
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[pgac_cv_var_int_timezone=yes],
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[pgac_cv_var_int_timezone=no])])
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if test x"$pgac_cv_var_int_timezone" = xyes ; then
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AC_DEFINE(HAVE_INT_TIMEZONE,, [Define to 1 if you have the global variable 'int timezone'.])
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fi])# PGAC_VAR_INT_TIMEZONE
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# PGAC_STRUCT_TIMEZONE
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# ------------------
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# Figure out how to get the current timezone. If `struct tm' has a
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# `tm_zone' member, define `HAVE_TM_ZONE'. Also, if the
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# external array `tzname' is found, define `HAVE_TZNAME'.
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# This is the same as the standard macro AC_STRUCT_TIMEZONE, except that
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# tzname[] is checked for regardless of whether we find tm_zone.
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AC_DEFUN([PGAC_STRUCT_TIMEZONE],
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[AC_REQUIRE([AC_STRUCT_TM])dnl
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AC_CHECK_MEMBERS([struct tm.tm_zone],,,[#include <sys/types.h>
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#include <$ac_cv_struct_tm>
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])
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if test "$ac_cv_member_struct_tm_tm_zone" = yes; then
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AC_DEFINE(HAVE_TM_ZONE, 1,
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[Define to 1 if your `struct tm' has `tm_zone'. Deprecated, use
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`HAVE_STRUCT_TM_TM_ZONE' instead.])
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fi
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AC_CACHE_CHECK(for tzname, ac_cv_var_tzname,
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[AC_TRY_LINK(
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[#include <time.h>
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#ifndef tzname /* For SGI. */
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extern char *tzname[]; /* RS6000 and others reject char **tzname. */
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#endif
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],
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[atoi(*tzname);], ac_cv_var_tzname=yes, ac_cv_var_tzname=no)])
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if test $ac_cv_var_tzname = yes; then
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AC_DEFINE(HAVE_TZNAME, 1,
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[Define to 1 if you have the external array `tzname'.])
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fi
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])# PGAC_STRUCT_TIMEZONE
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# PGAC_FUNC_GETTIMEOFDAY_1ARG
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# ---------------------------
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# Check if gettimeofday() has only one arguments. (Normal is two.)
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# If so, define GETTIMEOFDAY_1ARG.
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AC_DEFUN([PGAC_FUNC_GETTIMEOFDAY_1ARG],
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[AC_CACHE_CHECK(whether gettimeofday takes only one argument,
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pgac_cv_func_gettimeofday_1arg,
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[AC_TRY_COMPILE([#include <sys/time.h>],
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[struct timeval *tp;
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struct timezone *tzp;
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gettimeofday(tp,tzp);],
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[pgac_cv_func_gettimeofday_1arg=no],
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[pgac_cv_func_gettimeofday_1arg=yes])])
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if test x"$pgac_cv_func_gettimeofday_1arg" = xyes ; then
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AC_DEFINE(GETTIMEOFDAY_1ARG,, [Define to 1 if gettimeofday() takes only 1 argument.])
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fi
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AH_VERBATIM(GETTIMEOFDAY_1ARG_,
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[@%:@ifdef GETTIMEOFDAY_1ARG
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@%:@ define gettimeofday(a,b) gettimeofday(a)
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@%:@endif])dnl
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])# PGAC_FUNC_GETTIMEOFDAY_1ARG
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# PGAC_UNION_SEMUN
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# ----------------
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# Check if `union semun' exists. Define HAVE_UNION_SEMUN if so.
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# If it doesn't then one could define it as
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# union semun { int val; struct semid_ds *buf; unsigned short *array; }
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AC_DEFUN([PGAC_UNION_SEMUN],
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[AC_CHECK_TYPES([union semun], [], [],
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[#include <sys/types.h>
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#include <sys/ipc.h>
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#include <sys/sem.h>])])# PGAC_UNION_SEMUN
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# PGAC_STRUCT_SOCKADDR_UN
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# -----------------------
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# If `struct sockaddr_un' exists, define HAVE_UNIX_SOCKETS.
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# (Requires test for <sys/un.h>!)
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AC_DEFUN([PGAC_STRUCT_SOCKADDR_UN],
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[AC_CHECK_TYPES([struct sockaddr_un], [AC_DEFINE(HAVE_UNIX_SOCKETS, 1, [Define to 1 if you have unix sockets.])], [],
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[#include <sys/types.h>
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#ifdef HAVE_SYS_UN_H
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#include <sys/un.h>
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#endif
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])])# PGAC_STRUCT_SOCKADDR_UN
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# PGAC_STRUCT_SOCKADDR_STORAGE
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# ----------------------------
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# If `struct sockaddr_storage' exists, define HAVE_STRUCT_SOCKADDR_STORAGE.
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# If it is missing then one could define it.
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AC_DEFUN([PGAC_STRUCT_SOCKADDR_STORAGE],
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[AC_CHECK_TYPES([struct sockaddr_storage], [], [],
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[#include <sys/types.h>
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#ifdef HAVE_SYS_SOCKET_H
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#include <sys/socket.h>
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#endif
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])])# PGAC_STRUCT_SOCKADDR_STORAGE
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# PGAC_STRUCT_SOCKADDR_STORAGE_MEMBERS
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# --------------------------------------
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# Check the members of `struct sockaddr_storage'. We need to know about
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# ss_family and ss_len. (Some platforms follow RFC 2553 and call them
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# __ss_family and __ss_len.) We also check struct sockaddr's sa_len;
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# if we have to define our own `struct sockaddr_storage', this tells us
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# whether we need to provide an ss_len field.
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AC_DEFUN([PGAC_STRUCT_SOCKADDR_STORAGE_MEMBERS],
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[AC_CHECK_MEMBERS([struct sockaddr_storage.ss_family,
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struct sockaddr_storage.__ss_family,
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struct sockaddr_storage.ss_len,
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struct sockaddr_storage.__ss_len,
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struct sockaddr.sa_len], [], [],
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[#include <sys/types.h>
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#ifdef HAVE_SYS_SOCKET_H
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#include <sys/socket.h>
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#endif
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])])# PGAC_STRUCT_SOCKADDR_STORAGE_MEMBERS
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# PGAC_STRUCT_ADDRINFO
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# -----------------------
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# If `struct addrinfo' exists, define HAVE_STRUCT_ADDRINFO.
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AC_DEFUN([PGAC_STRUCT_ADDRINFO],
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[AC_CHECK_TYPES([struct addrinfo], [], [],
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[#include <sys/types.h>
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#include <sys/socket.h>
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#include <netdb.h>
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])])# PGAC_STRUCT_ADDRINFO
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# PGAC_FUNC_POSIX_SIGNALS
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# -----------------------
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# Check to see if the machine has the POSIX signal interface. Define
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# HAVE_POSIX_SIGNALS if so. Also set the output variable HAVE_POSIX_SIGNALS
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# to yes or no.
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#
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# Note that this test only compiles a test program, it doesn't check
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# whether the routines actually work. If that becomes a problem, make
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# a fancier check.
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AC_DEFUN([PGAC_FUNC_POSIX_SIGNALS],
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[AC_CACHE_CHECK(for POSIX signal interface, pgac_cv_func_posix_signals,
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[AC_TRY_LINK([#include <signal.h>
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],
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[struct sigaction act, oact;
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sigemptyset(&act.sa_mask);
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act.sa_flags = SA_RESTART;
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sigaction(0, &act, &oact);],
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[pgac_cv_func_posix_signals=yes],
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[pgac_cv_func_posix_signals=no])])
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if test x"$pgac_cv_func_posix_signals" = xyes ; then
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AC_DEFINE(HAVE_POSIX_SIGNALS,, [Define to 1 if you have the POSIX signal interface.])
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fi
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HAVE_POSIX_SIGNALS=$pgac_cv_func_posix_signals
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AC_SUBST(HAVE_POSIX_SIGNALS)])# PGAC_FUNC_POSIX_SIGNALS
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# PGAC_FUNC_SNPRINTF_LONG_LONG_INT_FORMAT
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# ---------------------------------------
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# Determine which format snprintf uses for long long int. We handle
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# %lld, %qd, %I64d. The result is in shell variable
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# LONG_LONG_INT_FORMAT.
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AC_DEFUN([PGAC_FUNC_SNPRINTF_LONG_LONG_INT_FORMAT],
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[AC_MSG_CHECKING([snprintf format for long long int])
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AC_CACHE_VAL(pgac_cv_snprintf_long_long_int_format,
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[for pgac_format in '%lld' '%qd' '%I64d'; do
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AC_TRY_RUN([#include <stdio.h>
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typedef long long int int64;
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#define INT64_FORMAT "$pgac_format"
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int64 a = 20000001;
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int64 b = 40000005;
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int does_int64_snprintf_work()
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{
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int64 c;
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char buf[100];
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if (sizeof(int64) != 8)
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return 0; /* doesn't look like the right size */
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c = a * b;
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snprintf(buf, 100, INT64_FORMAT, c);
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if (strcmp(buf, "800000140000005") != 0)
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return 0; /* either multiply or snprintf is busted */
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return 1;
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}
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main() {
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exit(! does_int64_snprintf_work());
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}],
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[pgac_cv_snprintf_long_long_int_format=$pgac_format; break],
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[],
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[pgac_cv_snprintf_long_long_int_format=cross; break])
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done])dnl AC_CACHE_VAL
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LONG_LONG_INT_FORMAT=''
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case $pgac_cv_snprintf_long_long_int_format in
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cross) AC_MSG_RESULT([cannot test (not on host machine)]);;
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?*) AC_MSG_RESULT([$pgac_cv_snprintf_long_long_int_format])
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LONG_LONG_INT_FORMAT=$pgac_cv_snprintf_long_long_int_format;;
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*) AC_MSG_RESULT(none);;
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esac])# PGAC_FUNC_SNPRINTF_LONG_LONG_INT_FORMAT
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