dfda21e7a6
included, and then include <strings.h> if so. Several systems already needed <strings.h> anyway. Some new systems that claim to conform to the Unix 9x "standard" do not declare str[n]casemp() in string.h, and C99 compilers will not like that.
125 lines
4.4 KiB
Text
125 lines
4.4 KiB
Text
# Macros that test various C library quirks
|
|
# $Header: /cvsroot/pgsql/config/c-library.m4,v 1.5 2000/11/03 18:43:51 petere Exp $
|
|
|
|
|
|
# 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 = timezone / 60;],
|
|
[pgac_cv_var_int_timezone=yes],
|
|
[pgac_cv_var_int_timezone=no])])
|
|
if test x"$pgac_cv_var_int_timezone" = xyes ; then
|
|
AC_DEFINE(HAVE_INT_TIMEZONE,, [Set to 1 if you have the global variable timezone])
|
|
fi])# PGAC_VAR_INT_TIMEZONE
|
|
|
|
|
|
# PGAC_FUNC_GETTIMEOFDAY_1ARG
|
|
# ---------------------------
|
|
# Check if gettimeofday() has only one arguments. (Normal is two.)
|
|
# If so, define GETTIMEOFDAY_1ARG.
|
|
AC_DEFUN([PGAC_FUNC_GETTIMEOFDAY_1ARG],
|
|
[AC_CACHE_CHECK(whether gettimeofday takes only one argument,
|
|
pgac_cv_func_gettimeofday_1arg,
|
|
[AC_TRY_COMPILE([#include <sys/time.h>],
|
|
[struct timeval *tp;
|
|
struct timezone *tzp;
|
|
gettimeofday(tp,tzp);],
|
|
[pgac_cv_func_gettimeofday_1arg=no],
|
|
[pgac_cv_func_gettimeofday_1arg=yes])])
|
|
if test x"$pgac_cv_func_gettimeofday_1arg" = xyes ; then
|
|
AC_DEFINE(GETTIMEOFDAY_1ARG,, [Set to 1 if gettimeofday() takes only 1 argument])
|
|
fi])# PGAC_FUNC_GETTIMEOFDAY_1ARG
|
|
|
|
|
|
# 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_CACHE_CHECK(for union semun, pgac_cv_union_semun,
|
|
[AC_TRY_COMPILE([#include <sys/types.h>
|
|
#include <sys/ipc.h>
|
|
#include <sys/sem.h>],
|
|
[union semun semun;],
|
|
[pgac_cv_union_semun=yes],
|
|
[pgac_cv_union_semun=no])])
|
|
if test x"$pgac_cv_union_semun" = xyes ; then
|
|
AC_DEFINE(HAVE_UNION_SEMUN, 1, [Set to 1 if you have `union semun'])
|
|
fi])# PGAC_UNION_SEMUN
|
|
|
|
|
|
# PGAC_STRUCT_SOCKADDR_UN
|
|
# -----------------------
|
|
# If `struct sockaddr_un' exists, define HAVE_STRUCT_SOCKADDR_UN. If
|
|
# it is missing then one could define it as { short int sun_family;
|
|
# char sun_path[108]; }. (Requires test for <sys/un.h>!)
|
|
AC_DEFUN([PGAC_STRUCT_SOCKADDR_UN],
|
|
[AC_CACHE_CHECK([for struct sockaddr_un], pgac_cv_struct_sockaddr_un,
|
|
[AC_TRY_COMPILE([#include <sys/types.h>
|
|
#ifdef HAVE_SYS_UN_H
|
|
#include <sys/un.h>
|
|
#endif],
|
|
[struct sockaddr_un un;],
|
|
[pgac_cv_struct_sockaddr_un=yes],
|
|
[pgac_cv_struct_sockaddr_un=no])])
|
|
if test x"$pgac_cv_struct_sockaddr_un" = xyes; then
|
|
AC_DEFINE(HAVE_STRUCT_SOCKADDR_UN, 1, [Set to 1 if you have `struct sockaddr_un'])
|
|
fi])# PGAC_STRUCT_SOCKADDR_UN
|
|
|
|
|
|
# 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"$pgac_cv_func_posix_signals" = xyes ; then
|
|
AC_DEFINE(HAVE_POSIX_SIGNALS,, [Set to 1 if you have the POSIX signal interface])
|
|
fi
|
|
HAVE_POSIX_SIGNALS=$pgac_cv_func_posix_signals
|
|
AC_SUBST(HAVE_POSIX_SIGNALS)])# PGAC_FUNC_POSIX_SIGNALS
|
|
|
|
|
|
# PGAC_HEADER_STRING
|
|
# ------------------
|
|
# Tests whether <string.h> and <strings.h> can both be included
|
|
# (without generating warnings). This is mostly useful if you need
|
|
# str[n]casecmp(), since this is not in the "standard" <string.h>
|
|
# on some systems.
|
|
AC_DEFUN([PGAC_HEADER_STRING],
|
|
[AC_CACHE_CHECK([whether string.h and strings.h may both be included],
|
|
[pgac_cv_header_strings_both],
|
|
[AC_TRY_CPP(
|
|
[#include <string.h>
|
|
#include <strings.h>
|
|
],
|
|
[AC_TRY_COMPILE(
|
|
[#include <string.h>
|
|
#include <strings.h>
|
|
],
|
|
[int n = strcasecmp("a", "b");],
|
|
[pgac_cv_header_strings_both=yes],
|
|
[pgac_cv_header_strings_both=no])],
|
|
[pgac_cv_header_strings_both=no])])
|
|
if test x"$pgac_cv_header_strings_both" = x"yes"; then
|
|
AC_DEFINE([STRING_H_WITH_STRINGS_H], 1,
|
|
[Define if string.h and strings.h may both be included])
|
|
fi])
|