mirror of
https://git.postgresql.org/git/postgresql.git
synced 2024-12-27 08:39:28 +08:00
ff4628f37a
ENABLE_DTRACE unused as ofa7b7b07af3HAVE_ERR_SET_MARK unused as of4ed4b6c54eHAVE_FCVT unused as of4553e1d80fHAVE_STRUCT_SOCKADDR_UN unused as ofb4cea00a1fHAVE_SYSCONF unused as off83356c7f5TM_IN_SYS_TIME never used, obsolescent per Autoconf documentation
328 lines
10 KiB
Plaintext
328 lines
10 KiB
Plaintext
# Macros that test various C library quirks
|
|
# config/c-library.m4
|
|
|
|
|
|
# PGAC_VAR_INT_TIMEZONE
|
|
# ---------------------
|
|
# Check if the global variable `timezone' exists. If so, define
|
|
# HAVE_INT_TIMEZONE.
|
|
AC_DEFUN([PGAC_VAR_INT_TIMEZONE],
|
|
[AC_CACHE_CHECK(for int timezone, pgac_cv_var_int_timezone,
|
|
[AC_TRY_LINK([#include <time.h>
|
|
int res;],
|
|
[#ifndef __CYGWIN__
|
|
res = timezone / 60;
|
|
#else
|
|
res = _timezone / 60;
|
|
#endif],
|
|
[pgac_cv_var_int_timezone=yes],
|
|
[pgac_cv_var_int_timezone=no])])
|
|
if test x"$pgac_cv_var_int_timezone" = xyes ; then
|
|
AC_DEFINE(HAVE_INT_TIMEZONE,, [Define to 1 if you have the global variable 'int timezone'.])
|
|
fi])# PGAC_VAR_INT_TIMEZONE
|
|
|
|
|
|
# PGAC_STRUCT_TIMEZONE
|
|
# ------------------
|
|
# Figure out how to get the current timezone. If `struct tm' has a
|
|
# `tm_zone' member, define `HAVE_TM_ZONE'. Also, if the
|
|
# external array `tzname' is found, define `HAVE_TZNAME'.
|
|
# This is the same as the standard macro AC_STRUCT_TIMEZONE, except that
|
|
# tzname[] is checked for regardless of whether we find tm_zone.
|
|
AC_DEFUN([PGAC_STRUCT_TIMEZONE],
|
|
[AC_CHECK_MEMBERS([struct tm.tm_zone],,,[#include <sys/types.h>
|
|
#include <$ac_cv_struct_tm>
|
|
])
|
|
if test "$ac_cv_member_struct_tm_tm_zone" = yes; then
|
|
AC_DEFINE(HAVE_TM_ZONE, 1,
|
|
[Define to 1 if your `struct tm' has `tm_zone'. Deprecated, use
|
|
`HAVE_STRUCT_TM_TM_ZONE' instead.])
|
|
fi
|
|
AC_CACHE_CHECK(for tzname, ac_cv_var_tzname,
|
|
[AC_TRY_LINK(
|
|
[#include <time.h>
|
|
#ifndef tzname /* For SGI. */
|
|
extern char *tzname[]; /* RS6000 and others reject char **tzname. */
|
|
#endif
|
|
],
|
|
[atoi(*tzname);], ac_cv_var_tzname=yes, ac_cv_var_tzname=no)])
|
|
if test $ac_cv_var_tzname = yes; then
|
|
AC_DEFINE(HAVE_TZNAME, 1,
|
|
[Define to 1 if you have the external array `tzname'.])
|
|
fi
|
|
])# PGAC_STRUCT_TIMEZONE
|
|
|
|
|
|
# PGAC_FUNC_GETTIMEOFDAY_1ARG
|
|
# ---------------------------
|
|
# Check if gettimeofday() has only one arguments. (Normal is two.)
|
|
# If so, define GETTIMEOFDAY_1ARG.
|
|
AC_DEFUN([PGAC_FUNC_GETTIMEOFDAY_1ARG],
|
|
[AC_CACHE_CHECK(whether gettimeofday takes only one argument,
|
|
pgac_cv_func_gettimeofday_1arg,
|
|
[AC_TRY_COMPILE([#include <sys/time.h>],
|
|
[struct timeval *tp;
|
|
struct timezone *tzp;
|
|
gettimeofday(tp,tzp);],
|
|
[pgac_cv_func_gettimeofday_1arg=no],
|
|
[pgac_cv_func_gettimeofday_1arg=yes])])
|
|
if test x"$pgac_cv_func_gettimeofday_1arg" = xyes ; then
|
|
AC_DEFINE(GETTIMEOFDAY_1ARG,, [Define to 1 if gettimeofday() takes only 1 argument.])
|
|
fi
|
|
AH_VERBATIM(GETTIMEOFDAY_1ARG_,
|
|
[@%:@ifdef GETTIMEOFDAY_1ARG
|
|
@%:@ define gettimeofday(a,b) gettimeofday(a)
|
|
@%:@endif])dnl
|
|
])# PGAC_FUNC_GETTIMEOFDAY_1ARG
|
|
|
|
|
|
# PGAC_FUNC_GETPWUID_R_5ARG
|
|
# ---------------------------
|
|
# Check if getpwuid_r() takes a fifth argument (later POSIX standard, not draft version)
|
|
# If so, define GETPWUID_R_5ARG
|
|
AC_DEFUN([PGAC_FUNC_GETPWUID_R_5ARG],
|
|
[AC_CACHE_CHECK(whether getpwuid_r takes a fifth argument,
|
|
pgac_cv_func_getpwuid_r_5arg,
|
|
[AC_TRY_COMPILE([#include <sys/types.h>
|
|
#include <pwd.h>],
|
|
[uid_t uid;
|
|
struct passwd *space;
|
|
char *buf;
|
|
size_t bufsize;
|
|
struct passwd **result;
|
|
getpwuid_r(uid, space, buf, bufsize, result);],
|
|
[pgac_cv_func_getpwuid_r_5arg=yes],
|
|
[pgac_cv_func_getpwuid_r_5arg=no])])
|
|
if test x"$pgac_cv_func_getpwuid_r_5arg" = xyes ; then
|
|
AC_DEFINE(GETPWUID_R_5ARG,, [Define to 1 if getpwuid_r() takes a 5th argument.])
|
|
fi
|
|
])# PGAC_FUNC_GETPWUID_R_5ARG
|
|
|
|
|
|
# PGAC_FUNC_STRERROR_R_INT
|
|
# ---------------------------
|
|
# Check if strerror_r() returns an int (SUSv3) rather than a char * (GNU libc)
|
|
# If so, define STRERROR_R_INT
|
|
AC_DEFUN([PGAC_FUNC_STRERROR_R_INT],
|
|
[AC_CACHE_CHECK(whether strerror_r returns int,
|
|
pgac_cv_func_strerror_r_int,
|
|
[AC_TRY_COMPILE([#include <string.h>],
|
|
[#ifndef _AIX
|
|
int strerror_r(int, char *, size_t);
|
|
#else
|
|
/* Older AIX has 'int' for the third argument so we don't test the args. */
|
|
int strerror_r();
|
|
#endif],
|
|
[pgac_cv_func_strerror_r_int=yes],
|
|
[pgac_cv_func_strerror_r_int=no])])
|
|
if test x"$pgac_cv_func_strerror_r_int" = xyes ; then
|
|
AC_DEFINE(STRERROR_R_INT,, [Define to 1 if strerror_r() returns a int.])
|
|
fi
|
|
])# PGAC_FUNC_STRERROR_R_INT
|
|
|
|
|
|
# PGAC_UNION_SEMUN
|
|
# ----------------
|
|
# Check if `union semun' exists. Define HAVE_UNION_SEMUN if so.
|
|
# If it doesn't then one could define it as
|
|
# union semun { int val; struct semid_ds *buf; unsigned short *array; }
|
|
AC_DEFUN([PGAC_UNION_SEMUN],
|
|
[AC_CHECK_TYPES([union semun], [], [],
|
|
[#include <sys/types.h>
|
|
#include <sys/ipc.h>
|
|
#include <sys/sem.h>])])# PGAC_UNION_SEMUN
|
|
|
|
|
|
# PGAC_STRUCT_SOCKADDR_UN
|
|
# -----------------------
|
|
# If `struct sockaddr_un' exists, define HAVE_UNIX_SOCKETS.
|
|
# (Requires test for <sys/un.h>!)
|
|
AC_DEFUN([PGAC_STRUCT_SOCKADDR_UN],
|
|
[AC_CHECK_TYPE([struct sockaddr_un], [AC_DEFINE(HAVE_UNIX_SOCKETS, 1, [Define to 1 if you have unix sockets.])], [],
|
|
[#include <sys/types.h>
|
|
#ifdef HAVE_SYS_UN_H
|
|
#include <sys/un.h>
|
|
#endif
|
|
])])# PGAC_STRUCT_SOCKADDR_UN
|
|
|
|
|
|
# PGAC_STRUCT_SOCKADDR_STORAGE
|
|
# ----------------------------
|
|
# If `struct sockaddr_storage' exists, define HAVE_STRUCT_SOCKADDR_STORAGE.
|
|
# If it is missing then one could define it.
|
|
AC_DEFUN([PGAC_STRUCT_SOCKADDR_STORAGE],
|
|
[AC_CHECK_TYPES([struct sockaddr_storage], [], [],
|
|
[#include <sys/types.h>
|
|
#ifdef HAVE_SYS_SOCKET_H
|
|
#include <sys/socket.h>
|
|
#endif
|
|
])])# PGAC_STRUCT_SOCKADDR_STORAGE
|
|
|
|
# PGAC_STRUCT_SOCKADDR_STORAGE_MEMBERS
|
|
# --------------------------------------
|
|
# Check the members of `struct sockaddr_storage'. We need to know about
|
|
# ss_family and ss_len. (Some platforms follow RFC 2553 and call them
|
|
# __ss_family and __ss_len.) We also check struct sockaddr's sa_len;
|
|
# if we have to define our own `struct sockaddr_storage', this tells us
|
|
# whether we need to provide an ss_len field.
|
|
AC_DEFUN([PGAC_STRUCT_SOCKADDR_STORAGE_MEMBERS],
|
|
[AC_CHECK_MEMBERS([struct sockaddr_storage.ss_family,
|
|
struct sockaddr_storage.__ss_family,
|
|
struct sockaddr_storage.ss_len,
|
|
struct sockaddr_storage.__ss_len,
|
|
struct sockaddr.sa_len], [], [],
|
|
[#include <sys/types.h>
|
|
#ifdef HAVE_SYS_SOCKET_H
|
|
#include <sys/socket.h>
|
|
#endif
|
|
])])# PGAC_STRUCT_SOCKADDR_STORAGE_MEMBERS
|
|
|
|
|
|
# PGAC_STRUCT_ADDRINFO
|
|
# -----------------------
|
|
# If `struct addrinfo' exists, define HAVE_STRUCT_ADDRINFO.
|
|
AC_DEFUN([PGAC_STRUCT_ADDRINFO],
|
|
[AC_CHECK_TYPES([struct addrinfo], [], [],
|
|
[#include <sys/types.h>
|
|
#include <sys/socket.h>
|
|
#include <netdb.h>
|
|
])])# PGAC_STRUCT_ADDRINFO
|
|
|
|
|
|
# PGAC_FUNC_POSIX_SIGNALS
|
|
# -----------------------
|
|
# Check to see if the machine has the POSIX signal interface. Define
|
|
# HAVE_POSIX_SIGNALS if so. Also set the output variable HAVE_POSIX_SIGNALS
|
|
# to yes or no.
|
|
#
|
|
# Note that this test only compiles a test program, it doesn't check
|
|
# whether the routines actually work. If that becomes a problem, make
|
|
# a fancier check.
|
|
AC_DEFUN([PGAC_FUNC_POSIX_SIGNALS],
|
|
[AC_CACHE_CHECK(for POSIX signal interface, pgac_cv_func_posix_signals,
|
|
[AC_TRY_LINK([#include <signal.h>
|
|
],
|
|
[struct sigaction act, oact;
|
|
sigemptyset(&act.sa_mask);
|
|
act.sa_flags = SA_RESTART;
|
|
sigaction(0, &act, &oact);],
|
|
[pgac_cv_func_posix_signals=yes],
|
|
[pgac_cv_func_posix_signals=no])])
|
|
if test x"$pgac_cv_func_posix_signals" = xyes ; then
|
|
AC_DEFINE(HAVE_POSIX_SIGNALS,, [Define to 1 if you have the POSIX signal interface.])
|
|
fi
|
|
HAVE_POSIX_SIGNALS=$pgac_cv_func_posix_signals
|
|
AC_SUBST(HAVE_POSIX_SIGNALS)])# PGAC_FUNC_POSIX_SIGNALS
|
|
|
|
|
|
# PGAC_FUNC_SNPRINTF_LONG_LONG_INT_FORMAT
|
|
# ---------------------------------------
|
|
# Determine which format snprintf uses for long long int. We handle
|
|
# %lld, %qd, %I64d. The result is in shell variable
|
|
# LONG_LONG_INT_FORMAT.
|
|
#
|
|
# MinGW uses '%I64d', though gcc throws an warning with -Wall,
|
|
# while '%lld' doesn't generate a warning, but doesn't work.
|
|
#
|
|
AC_DEFUN([PGAC_FUNC_SNPRINTF_LONG_LONG_INT_FORMAT],
|
|
[AC_MSG_CHECKING([snprintf format for long long int])
|
|
AC_CACHE_VAL(pgac_cv_snprintf_long_long_int_format,
|
|
[for pgac_format in '%lld' '%qd' '%I64d'; do
|
|
AC_TRY_RUN([#include <stdio.h>
|
|
typedef long long int ac_int64;
|
|
#define INT64_FORMAT "$pgac_format"
|
|
|
|
ac_int64 a = 20000001;
|
|
ac_int64 b = 40000005;
|
|
|
|
int does_int64_snprintf_work()
|
|
{
|
|
ac_int64 c;
|
|
char buf[100];
|
|
|
|
if (sizeof(ac_int64) != 8)
|
|
return 0; /* doesn't look like the right size */
|
|
|
|
c = a * b;
|
|
snprintf(buf, 100, INT64_FORMAT, c);
|
|
if (strcmp(buf, "800000140000005") != 0)
|
|
return 0; /* either multiply or snprintf is busted */
|
|
return 1;
|
|
}
|
|
main() {
|
|
exit(! does_int64_snprintf_work());
|
|
}],
|
|
[pgac_cv_snprintf_long_long_int_format=$pgac_format; break],
|
|
[],
|
|
[pgac_cv_snprintf_long_long_int_format=cross; break])
|
|
done])dnl AC_CACHE_VAL
|
|
|
|
LONG_LONG_INT_FORMAT=''
|
|
|
|
case $pgac_cv_snprintf_long_long_int_format in
|
|
cross) AC_MSG_RESULT([cannot test (not on host machine)]);;
|
|
?*) AC_MSG_RESULT([$pgac_cv_snprintf_long_long_int_format])
|
|
LONG_LONG_INT_FORMAT=$pgac_cv_snprintf_long_long_int_format;;
|
|
*) AC_MSG_RESULT(none);;
|
|
esac])# PGAC_FUNC_SNPRINTF_LONG_LONG_INT_FORMAT
|
|
|
|
|
|
# PGAC_FUNC_PRINTF_ARG_CONTROL
|
|
# ---------------------------------------
|
|
# Determine if printf supports %1$ argument selection, e.g. %5$ selects
|
|
# the fifth argument after the printf print string.
|
|
# This is not in the C99 standard, but in the Single Unix Specification (SUS).
|
|
# It is used in our language translation strings.
|
|
#
|
|
AC_DEFUN([PGAC_FUNC_PRINTF_ARG_CONTROL],
|
|
[AC_MSG_CHECKING([whether printf supports argument control])
|
|
AC_CACHE_VAL(pgac_cv_printf_arg_control,
|
|
[AC_TRY_RUN([#include <stdio.h>
|
|
#include <string.h>
|
|
|
|
int main()
|
|
{
|
|
char buf[100];
|
|
|
|
/* can it swap arguments? */
|
|
snprintf(buf, 100, "%2\$d %1\$d", 3, 4);
|
|
if (strcmp(buf, "4 3") != 0)
|
|
return 1;
|
|
return 0;
|
|
}],
|
|
[pgac_cv_printf_arg_control=yes],
|
|
[pgac_cv_printf_arg_control=no],
|
|
[pgac_cv_printf_arg_control=cross])
|
|
])dnl AC_CACHE_VAL
|
|
AC_MSG_RESULT([$pgac_cv_printf_arg_control])
|
|
])# PGAC_FUNC_PRINTF_ARG_CONTROL
|
|
|
|
|
|
# PGAC_TYPE_LOCALE_T
|
|
# ------------------
|
|
# Check for the locale_t type and find the right header file. Mac OS
|
|
# X needs xlocale.h; standard is locale.h, but glibc also has an
|
|
# xlocale.h file that we should not use.
|
|
#
|
|
AC_DEFUN([PGAC_TYPE_LOCALE_T],
|
|
[AC_CACHE_CHECK([for locale_t], pgac_cv_type_locale_t,
|
|
[AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
|
|
[#include <locale.h>
|
|
locale_t x;],
|
|
[])],
|
|
[pgac_cv_type_locale_t=yes],
|
|
[AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
|
|
[#include <xlocale.h>
|
|
locale_t x;],
|
|
[])],
|
|
[pgac_cv_type_locale_t='yes (in xlocale.h)'],
|
|
[pgac_cv_type_locale_t=no])])])
|
|
if test "$pgac_cv_type_locale_t" != no; then
|
|
AC_DEFINE(HAVE_LOCALE_T, 1,
|
|
[Define to 1 if the system has the type `locale_t'.])
|
|
fi
|
|
if test "$pgac_cv_type_locale_t" = 'yes (in xlocale.h)'; then
|
|
AC_DEFINE(LOCALE_T_IN_XLOCALE, 1,
|
|
[Define to 1 if `locale_t' requires <xlocale.h>.])
|
|
fi])])# PGAC_HEADER_XLOCALE
|