misc.m4

这是linux下运行的mysql软件包,可用于linux 下安装 php + mysql + apach 的网络配置

    [
      AC_TRY_LINK([
	#include <signal.h>
	RETSIGTYPE foo() { }], [
		int mask = sigmask(SIGINT);
		sigset(SIGINT, foo); sigrelse(SIGINT);
		sighold(SIGINT); sigpause(SIGINT);
        ], mysql_cv_signal_vintage=svr3, mysql_cv_signal_vintage=v7
    )]
  )]
)
])
AC_MSG_RESULT($mysql_cv_signal_vintage)
if test "$mysql_cv_signal_vintage" = posix; then
AC_DEFINE(HAVE_POSIX_SIGNALS, [1],
          [Signal handling is POSIX (sigset/sighold, etc)])
elif test "$mysql_cv_signal_vintage" = "4.2bsd"; then
AC_DEFINE([HAVE_BSD_SIGNALS], [1], [BSD style signals])
elif test "$mysql_cv_signal_vintage" = svr3; then
AC_DEFINE(HAVE_USG_SIGHOLD, [1], [sighold() is present and usable])
fi
])

AC_DEFUN([MYSQL_CHECK_GETPW_FUNCS],
[AC_MSG_CHECKING(whether programs are able to redeclare getpw functions)
AC_CACHE_VAL(mysql_cv_can_redecl_getpw,
[AC_TRY_COMPILE([#include <sys/types.h>
#include <pwd.h>
extern struct passwd *getpwent();], [struct passwd *z; z = getpwent();],
  mysql_cv_can_redecl_getpw=yes,mysql_cv_can_redecl_getpw=no)])
AC_MSG_RESULT($mysql_cv_can_redecl_getpw)
if test "$mysql_cv_can_redecl_getpw" = "no"; then
AC_DEFINE(HAVE_GETPW_DECLS, [1], [getpwent() declaration present])
fi
])

AC_DEFUN([MYSQL_HAVE_TIOCGWINSZ],
[AC_MSG_CHECKING(for TIOCGWINSZ in sys/ioctl.h)
AC_CACHE_VAL(mysql_cv_tiocgwinsz_in_ioctl,
[AC_TRY_COMPILE([#include <sys/types.h>
#include <sys/ioctl.h>], [int x = TIOCGWINSZ;],
  mysql_cv_tiocgwinsz_in_ioctl=yes,mysql_cv_tiocgwinsz_in_ioctl=no)])
AC_MSG_RESULT($mysql_cv_tiocgwinsz_in_ioctl)
if test "$mysql_cv_tiocgwinsz_in_ioctl" = "yes"; then   
AC_DEFINE([GWINSZ_IN_SYS_IOCTL], [1],
          [READLINE: your system defines TIOCGWINSZ in sys/ioctl.h.])
fi
])

AC_DEFUN([MYSQL_HAVE_FIONREAD],
[AC_MSG_CHECKING(for FIONREAD in sys/ioctl.h)
AC_CACHE_VAL(mysql_cv_fionread_in_ioctl,
[AC_TRY_COMPILE([#include <sys/types.h>
#include <sys/ioctl.h>], [int x = FIONREAD;],
  mysql_cv_fionread_in_ioctl=yes,mysql_cv_fionread_in_ioctl=no)])
AC_MSG_RESULT($mysql_cv_fionread_in_ioctl)
if test "$mysql_cv_fionread_in_ioctl" = "yes"; then   
AC_DEFINE([FIONREAD_IN_SYS_IOCTL], [1], [Do we have FIONREAD])
fi
])

AC_DEFUN([MYSQL_HAVE_TIOCSTAT],
[AC_MSG_CHECKING(for TIOCSTAT in sys/ioctl.h)
AC_CACHE_VAL(mysql_cv_tiocstat_in_ioctl,
[AC_TRY_COMPILE([#include <sys/types.h>
#include <sys/ioctl.h>], [int x = TIOCSTAT;],
  mysql_cv_tiocstat_in_ioctl=yes,mysql_cv_tiocstat_in_ioctl=no)])
AC_MSG_RESULT($mysql_cv_tiocstat_in_ioctl)
if test "$mysql_cv_tiocstat_in_ioctl" = "yes"; then   
AC_DEFINE(TIOCSTAT_IN_SYS_IOCTL, [1],
          [declaration of TIOCSTAT in sys/ioctl.h])
fi
])

AC_DEFUN([MYSQL_STRUCT_DIRENT_D_INO],
[AC_REQUIRE([AC_HEADER_DIRENT])
AC_MSG_CHECKING(if struct dirent has a d_ino member)
AC_CACHE_VAL(mysql_cv_dirent_has_dino,
[AC_TRY_COMPILE([
#include <stdio.h>
#include <sys/types.h>
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif /* HAVE_UNISTD_H */
#if defined(HAVE_DIRENT_H)
# include <dirent.h>
#else
# define dirent direct
# ifdef HAVE_SYS_NDIR_H
#  include <sys/ndir.h>
# endif /* SYSNDIR */
# ifdef HAVE_SYS_DIR_H
#  include <sys/dir.h>
# endif /* SYSDIR */
# ifdef HAVE_NDIR_H
#  include <ndir.h>
# endif
#endif /* HAVE_DIRENT_H */
],[
struct dirent d; int z; z = d.d_ino;
], mysql_cv_dirent_has_dino=yes, mysql_cv_dirent_has_dino=no)])
AC_MSG_RESULT($mysql_cv_dirent_has_dino)
if test "$mysql_cv_dirent_has_dino" = "yes"; then
AC_DEFINE(STRUCT_DIRENT_HAS_D_INO, [1],
          [d_ino member present in struct dirent])
fi
])

AC_DEFUN([MYSQL_STRUCT_DIRENT_D_NAMLEN],
[AC_REQUIRE([AC_HEADER_DIRENT])
AC_MSG_CHECKING(if struct dirent has a d_namlen member)
AC_CACHE_VAL(mysql_cv_dirent_has_dnamlen,
[AC_TRY_COMPILE([
#include <stdio.h>
#include <sys/types.h>
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif /* HAVE_UNISTD_H */
#if defined(HAVE_DIRENT_H)
# include <dirent.h>
#else
# define dirent direct
# ifdef HAVE_SYS_NDIR_H
#  include <sys/ndir.h>
# endif /* SYSNDIR */
# ifdef HAVE_SYS_DIR_H
#  include <sys/dir.h>
# endif /* SYSDIR */
# ifdef HAVE_NDIR_H
#  include <ndir.h>
# endif
#endif /* HAVE_DIRENT_H */
],[
struct dirent d; int z; z = (int)d.d_namlen;
], mysql_cv_dirent_has_dnamlen=yes, mysql_cv_dirent_has_dnamlen=no)])
AC_MSG_RESULT($mysql_cv_dirent_has_dnamlen)
if test "$mysql_cv_dirent_has_dnamlen" = "yes"; then
AC_DEFINE(STRUCT_DIRENT_HAS_D_NAMLEN, [1],
          [d_namlen member present in struct dirent])
fi
])


AC_DEFUN([MYSQL_TYPE_SIGHANDLER],
[AC_MSG_CHECKING([whether signal handlers are of type void])
AC_CACHE_VAL(mysql_cv_void_sighandler,
[AC_TRY_COMPILE([#include <sys/types.h>
#include <signal.h>
#ifdef signal
#undef signal
#endif
#ifdef __cplusplus
extern "C"
#endif
void (*signal ()) ();],
[int i;], mysql_cv_void_sighandler=yes, mysql_cv_void_sighandler=no)])dnl
AC_MSG_RESULT($mysql_cv_void_sighandler)
if test "$mysql_cv_void_sighandler" = "yes"; then
AC_DEFINE(VOID_SIGHANDLER, [1], [sighandler type is void (*signal ()) ();])
fi
])

AC_DEFUN([MYSQL_CXX_BOOL],
[
AC_REQUIRE([AC_PROG_CXX])
AC_MSG_CHECKING(if ${CXX} supports bool types)
AC_CACHE_VAL(mysql_cv_have_bool,
[
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_TRY_COMPILE(,[bool b = true;],
mysql_cv_have_bool=yes,
mysql_cv_have_bool=no)
AC_LANG_RESTORE
])
AC_MSG_RESULT($mysql_cv_have_bool)
if test "$mysql_cv_have_bool" = yes; then
AC_DEFINE([HAVE_BOOL], [1], [bool is not defined by all C++ compilators])
fi
])dnl

AC_DEFUN([MYSQL_STACK_DIRECTION],
 [AC_CACHE_CHECK(stack direction for C alloca, ac_cv_c_stack_direction,
 [AC_TRY_RUN([#include <stdlib.h>
 int find_stack_direction ()
 {
   static char *addr = 0;
   auto char dummy;
   if (addr == 0)
     {
       addr = &dummy;
       return find_stack_direction ();
     }
   else
     return (&dummy > addr) ? 1 : -1;
 }
 int main ()
 {
   exit (find_stack_direction() < 0);
 }], ac_cv_c_stack_direction=1, ac_cv_c_stack_direction=-1,
   ac_cv_c_stack_direction=0)])
 AC_DEFINE_UNQUOTED(STACK_DIRECTION, $ac_cv_c_stack_direction)
])dnl

AC_DEFUN([MYSQL_CHECK_LONGLONG_TO_FLOAT],
[
AC_MSG_CHECKING(if conversion of longlong to float works)
AC_CACHE_VAL(ac_cv_conv_longlong_to_float,
[AC_TRY_RUN([#include <stdio.h>
typedef long long longlong;
main()
{
  longlong ll=1;
  float f;
  FILE *file=fopen("conftestval", "w");
  f = (float) ll;
  fprintf(file,"%g\n",f);
  fclose(file);
  exit (0);
}], ac_cv_conv_longlong_to_float=`cat conftestval`, ac_cv_conv_longlong_to_float=0, ifelse([$2], , , ac_cv_conv_longlong_to_float=$2))])dnl
if test "$ac_cv_conv_longlong_to_float" = "1" -o "$ac_cv_conv_longlong_to_float" = "yes"
then
  ac_cv_conv_longlong_to_float=yes
else
  ac_cv_conv_longlong_to_float=no
fi
AC_MSG_RESULT($ac_cv_conv_longlong_to_float)
])

AC_DEFUN([MYSQL_CHECK_VIO], [
dnl
dnl we always use vio: no need for special defines 
dnl
  AC_DEFINE([HAVE_VIO_READ_BUFF], [1],
            [Define to enable buffered read. This works only if syscalls
            read/recv return as soon as there is some data in the kernel
            buffer, no matter how big the given buffer is.])
])

# Local version of _AC_PROG_CXX_EXIT_DECLARATION that does not
# include #stdlib.h as default as this breaks things on Solaris
# (Conflicts with pthreads and big file handling)

m4_define([_AC_PROG_CXX_EXIT_DECLARATION],
[for ac_declaration in \
   ''\
   'extern "C" void std::exit (int) throw (); using std::exit;' \
   'extern "C" void std::exit (int); using std::exit;' \
   'extern "C" void exit (int) throw ();' \
   'extern "C" void exit (int);' \
   'void exit (int);' \
   '#include <stdlib.h>'
do
  _AC_COMPILE_IFELSE([AC_LANG_PROGRAM([$ac_declaration
@%:@include <stdlib.h>],
                                      [exit (42);])],
                     [],
                     [continue])
  _AC_COMPILE_IFELSE([AC_LANG_PROGRAM([$ac_declaration],
                                      [exit (42);])],
                     [break])
done
rm -f conftest*
if test -n "$ac_declaration"; then
  echo '#ifdef __cplusplus' >>confdefs.h
  echo $ac_declaration      >>confdefs.h
  echo '#endif'             >>confdefs.h
fi
])# _AC_PROG_CXX_EXIT_DECLARATION

dnl ---------------------------------------------------------------------------


dnl ---------------------------------------------------------------------------
dnl Macro: MYSQL_CHECK_BIG_TABLES
dnl Sets BIG_TABLES if --with-big-tables is used
dnl ---------------------------------------------------------------------------
AC_DEFUN([MYSQL_CHECK_BIG_TABLES], [
  AC_ARG_WITH([big-tables],
              [
  --with-big-tables       Support tables with more than 4 G rows even on 32 bit platforms],
              [bigtables="$withval"],
              [bigtables=no])
  AC_MSG_CHECKING([for big tables support])

  case "$bigtables" in
    yes )
      AC_DEFINE([BIG_TABLES], [1], [Support big tables])
      AC_MSG_RESULT([yes])
      ;;
    * )
      AC_MSG_RESULT([no])
      ;;
  esac

])
dnl ---------------------------------------------------------------------------
dnl END OF MYSQL_CHECK_BIG_TABLES SECTION
dnl ---------------------------------------------------------------------------


dnl ---------------------------------------------------------------------------
dnl Macro: MYSQL_CHECK_MAX_INDEXES
dnl Sets MAX_INDEXES
dnl ---------------------------------------------------------------------------
AC_DEFUN([MYSQL_CHECK_MAX_INDEXES], [
  AC_ARG_WITH([max-indexes],
              [
  --with-max-indexes=\#      Sets the maximum number of indexes per table, default 64],
              [max_indexes="$withval"],
              [max_indexes=64])
  AC_MSG_CHECKING([max indexes per table])
  AC_DEFINE_UNQUOTED([MAX_INDEXES], [$max_indexes],
                     [Maximum number of indexes per table])
  AC_MSG_RESULT([$max_indexes])
])
dnl ---------------------------------------------------------------------------
dnl END OF MYSQL_CHECK_MAX_INDEXES SECTION
dnl ---------------------------------------------------------------------------


dnl MYSQL_NEEDS_MYSYS_NEW
AC_DEFUN([MYSQL_NEEDS_MYSYS_NEW],
[AC_CACHE_CHECK([needs mysys_new helpers], mysql_use_mysys_new,
[
AC_LANG_PUSH(C++)
AC_TRY_LINK([], [
class A { public: int b; }; A *a=new A; a->b=10; delete a;
], mysql_use_mysys_new=no, mysql_use_mysys_new=yes)
AC_LANG_POP(C++)
])
if test "$mysql_use_mysys_new" = "yes"
then
  AC_DEFINE([USE_MYSYS_NEW], [1], [Needs to use mysys_new helpers])
fi
])


AC_DEFUN([MYSQL_CHECK_CXX_VERSION], [
case $SYSTEM_TYPE in
  *netware*)
    CXX_VERSION=`$CXX -version | grep -i version`
  ;;
  *)
    CXX_VERSION=`$CXX --version | sed 1q`
    if test $? -ne "0" -o -z "$CXX_VERSION"
    then
      CXX_VERSION=`$CXX -V 2>&1|sed 1q` # trying harder for Sun and SGI
    fi
    if test $? -ne "0" -o -z "$CXX_VERSION"
    then
      CXX_VERSION=`$CXX -v 2>&1|sed 1q` # even harder for Alpha
    fi
    if test $? -ne "0" -o -z "$CXX_VERSION"
    then
      CXX_VERSION=""
    fi
esac
if test "$CXX_VERSION"
then
  AC_MSG_CHECKING("C++ compiler version");
  AC_MSG_RESULT("$CXX $CXX_VERSION")
fi
AC_SUBST(CXX_VERSION)
])

AC_DEFUN([MYSQL_PROG_AR], [
AC_REQUIRE([MYSQL_CHECK_CXX_VERSION])
case $CXX_VERSION in
  MIPSpro*)
    AR=$CXX
    ARFLAGS="-ar -o"
  ;;
  *Forte*)
    AR=$CXX
    ARFLAGS="-xar -o"
  ;;
  *)
    if test -z "$AR"
    then
      AC_CHECK_PROG([AR], [ar], [ar])
    fi
    if test -z "$AR"
    then
      AC_MSG_ERROR([You need ar to build the library])
    fi
    if test -z "$ARFLAGS"
    then
      ARFLAGS="cru"
    fi
esac
AC_SUBST(AR)
AC_SUBST(ARFLAGS)
])