configure.in

linux subdivision ying gai ke yi le ba

AC_SUBST(netinet_sctp_uioh)
AC_SUBST(netinet_tcph)
AC_SUBST(stdargh)
AC_SUBST(stdioh)
AC_SUBST(stdlibh)
AC_SUBST(stringh)
AC_SUBST(stringsh)
AC_SUBST(sys_ioctlh)
AC_SUBST(sys_sendfileh)
AC_SUBST(sys_signalh)
AC_SUBST(sys_socketh)
AC_SUBST(sys_sockioh)
AC_SUBST(sys_typesh)
AC_SUBST(sys_timeh)
AC_SUBST(sys_uioh)
AC_SUBST(sys_unh)
AC_SUBST(timeh)
AC_SUBST(unistdh)
AC_SUBST(signalh)
AC_SUBST(sys_waith)
AC_SUBST(pthreadh)
AC_SUBST(semaphoreh)

# Checking for h_errno in <netdb.h>
if test "$netdbh" = "1"; then
  APR_CHECK_H_ERRNO_FLAG
  if test "$ac_cv_h_errno_cflags" = "no"; then
    AC_MSG_ERROR([can not find h_errno in netdb.h])
  fi
fi

dnl ----------------------------- Checks for standard typedefs
AC_TYPE_OFF_T
AC_TYPE_PID_T
AC_TYPE_SIZE_T
AC_TYPE_UID_T
AC_CHECK_TYPE(ssize_t, int)
AC_C_INLINE
AC_C_CONST
AC_TYPE_SIZE_T
AC_FUNC_SETPGRP

APR_CHECK_SOCKLEN_T

APR_INADDR_NONE

dnl Checks for pointer size
AC_CHECK_SIZEOF(void*, 4)

if test "x$ac_cv_sizeof_voidp" != "x"; then
    voidp_size=$ac_cv_sizeof_voidp
else
    AC_ERROR([Cannot determine size of void*])
fi

dnl Checks for integer size
AC_CHECK_SIZEOF(char, 1)
AC_CHECK_SIZEOF(int, 4)
AC_CHECK_SIZEOF(long, 4)
AC_CHECK_SIZEOF(short, 2)
AC_CHECK_SIZEOF(long double, 12)
AC_CHECK_SIZEOF(long long, 8)

if test "$ac_cv_sizeof_short" = "2"; then
    short_value=short
fi
if test "$ac_cv_sizeof_int" = "4"; then
    int_value=int
fi
# Now we need to find what apr_int64_t (sizeof == 8) will be.
# The first match is our preference.
if test "$ac_cv_sizeof_int" = "8"; then
    int64_literal='#define APR_INT64_C(val) (val)'
    int64_t_fmt='#define APR_INT64_T_FMT "d"'
    int64_t_fmt_len='#define APR_INT64_T_FMT_LEN 1'
    uint64_t_fmt='#define APR_UINT64_T_FMT "u"'
    uint64_t_fmt_len='#define APR_UINT64_T_FMT_LEN 1'
    uint64_t_hex_fmt='#define APR_UINT64_T_HEX_FMT "x"'
    int64_value="int"
    long_value=int
    int64_strfn="strtoi"
elif test "$ac_cv_sizeof_long" = "8"; then
    int64_literal='#define APR_INT64_C(val) (val##L)'
    int64_t_fmt='#define APR_INT64_T_FMT "ld"'
    int64_t_fmt_len='#define APR_INT64_T_FMT_LEN 2'
    uint64_t_fmt='#define APR_UINT64_T_FMT "lu"'
    uint64_t_fmt_len='#define APR_UINT64_T_FMT_LEN 2'
    uint64_t_hex_fmt='#define APR_UINT64_T_HEX_FMT "lx"'
    int64_value="long"
    long_value=long
    int64_strfn="strtol"
elif test "$ac_cv_sizeof_long_long" = "8"; then
    int64_literal='#define APR_INT64_C(val) (val##LL)'
    # Linux, Solaris, FreeBSD all support ll with printf.
    # BSD 4.4 originated 'q'.  Solaris is more popular and 
    # doesn't support 'q'.  Solaris wins.  Exceptions can
    # go to the OS-dependent section.
    int64_t_fmt='#define APR_INT64_T_FMT "lld"'
    int64_t_fmt_len='#define APR_INT64_T_FMT_LEN 3'
    uint64_t_fmt='#define APR_UINT64_T_FMT "llu"'
    uint64_t_fmt_len='#define APR_UINT64_T_FMT_LEN 3'
    uint64_t_hex_fmt='#define APR_UINT64_T_HEX_FMT "llx"'
    int64_value="long long"
    long_value="long long"
    int64_strfn="strtoll"
elif test "$ac_cv_sizeof_long_double" = "8"; then
    int64_literal='#define APR_INT64_C(val) (val##LD)'
    int64_t_fmt='#define APR_INT64_T_FMT "Ld"'
    int64_t_fmt_len='#define APR_INT64_T_FMT_LEN 2'
    uint64_t_fmt='#define APR_UINT64_T_FMT "Lu"'
    uint64_t_fmt_len='#define APR_UINT64_T_FMT_LEN 2'
    uint64_t_hex_fmt='#define APR_UINT64_T_HEX_FMT "Lx"'
    int64_value="long double"
    long_value="long double"
    int64_strfn="strtoll"
elif test "$ac_cv_sizeof_longlong" = "8"; then
    int64_literal='#define APR_INT64_C(val) (val##LL)'
    int64_t_fmt='#define APR_INT64_T_FMT "qd"'
    int64_t_fmt_len='#define APR_INT64_T_FMT_LEN 2'
    uint64_t_fmt='#define APR_UINT64_T_FMT "qu"'
    uint64_t_fmt_len='#define APR_UINT64_T_FMT_LEN 2'
    uint64_t_hex_fmt='#define APR_UINT64_T_HEX_FMT "qx"'
    int64_value="__int64"
    long_value="__int64"
    int64_strfn="strtoll"
else
    # int64_literal may be overriden if your compiler thinks you have
    # a 64-bit value but APR does not agree.
    int64_literal='#error Can not determine the proper size for apr_int64_t'
    int64_t_fmt='#error Can not determine the proper size for apr_int64_t'
    int64_t_fmt_len='#error Can not determine the proper size for apr_int64_t'
    uint64_t_fmt='#error Can not determine the proper size for apr_int64_t'
    uint64_t_fmt_len='#error Can not determine the proper size for apr_int64_t'
    uint64_t_hex_fmt='#error Can not determine the proper size for apr_uint64_t'
fi

# If present, allow the C99 macro INT64_C to override our conversion.
#
# HP-UX's ANSI C compiler provides this without any includes, so we
# will first look for INT64_C without adding stdint.h
AC_CACHE_CHECK([for INT64_C], [apr_cv_define_INT64_C], [
AC_EGREP_CPP(YES_IS_DEFINED,
[#ifdef INT64_C
YES_IS_DEFINED
#endif], [apr_cv_define_INT64_C=yes], [
    # Now check for INT64_C in stdint.h
    AC_EGREP_CPP(YES_IS_DEFINED, [#include <stdint.h>
#ifdef INT64_C
YES_IS_DEFINED
#endif], [apr_cv_define_INT64_C=yes], [apr_cv_define_INT64_C=no])])])

if test "$apr_cv_define_INT64_C" = "yes"; then
    int64_literal='#define APR_INT64_C(val) INT64_C(val)'
    stdint=1
else
    stdint=0
fi

if test "$ac_cv_type_size_t" = "yes"; then
    size_t_value="size_t"
else
    size_t_value="apr_int32_t"
fi
if test "$ac_cv_type_ssize_t" = "yes"; then
    ssize_t_value="ssize_t"
else
    ssize_t_value="apr_int32_t"
fi
if test "$ac_cv_socklen_t" = "yes"; then
    socklen_t_value="socklen_t"
    case $host in
        *-hp-hpux*)
            if test "$ac_cv_sizeof_long" = "8"; then
                # 64-bit HP-UX requires 32-bit socklens in
                # kernel, but user-space declarations say
                # 64-bit (socklen_t == size_t == long).
                # This will result in many compile warnings,
                # but we're functionally busted otherwise.
                socklen_t_value="int"
            fi
            ;;
    esac
else
    socklen_t_value="int"
fi

APR_CHECK_SIZEOF_EXTENDED([#include <sys/types.h>], ssize_t, 8)

if test "$ac_cv_sizeof_ssize_t" = "$ac_cv_sizeof_int"; then
    ssize_t_fmt='#define APR_SSIZE_T_FMT "d"'
elif test "$ac_cv_sizeof_ssize_t" = "$ac_cv_sizeof_long"; then
    ssize_t_fmt='#define APR_SSIZE_T_FMT "ld"'
else
    ssize_t_fmt='#error Can not determine the proper size for ssize_t'
fi

APR_CHECK_SIZEOF_EXTENDED([#include <stddef.h>], size_t, 8)

if test "$ac_cv_sizeof_size_t" = "$ac_cv_sizeof_int"; then
    size_t_fmt='#define APR_SIZE_T_FMT "d"'
elif test "$ac_cv_sizeof_size_t" = "$ac_cv_sizeof_long"; then
    size_t_fmt='#define APR_SIZE_T_FMT "ld"'
else
    size_t_fmt='#error Can not determine the proper size for size_t'
fi

if test "$ac_cv_type_off_t" = "yes"; then
    APR_CHECK_SIZEOF_EXTENDED([#include <sys/types.h>], off_t, 8)
    AC_MSG_CHECKING([which type to use for apr_off_t])
    if test "${ac_cv_sizeof_off_t}${ac_cv_sizeof_long}" = "44"; then
        # Special case: off_t may change size with _FILE_OFFSET_BITS
        # on 32-bit systems with LFS support.  To avoid compatibility
        # with other software which may export _FILE_OFFSET_BITS,
        # hard-code apr_off_t to long.
        off_t_value=long
        off_t_fmt='#define APR_OFF_T_FMT "ld"'
    else
        off_t_value=off_t
        # off_t is more commonly a long than an int; prefer that case
        # where int and long are the same size.
        if test "$ac_cv_sizeof_off_t" = "$ac_cv_sizeof_long"; then
            off_t_fmt='#define APR_OFF_T_FMT "ld"'
        elif test "$ac_cv_sizeof_off_t" = "$ac_cv_sizeof_int"; then
            off_t_fmt='#define APR_OFF_T_FMT "d"'
        elif test "$ac_cv_sizeof_off_t" = "$ac_cv_sizeof_long_long"; then
            off_t_fmt='#define APR_OFF_T_FMT APR_INT64_T_FMT'
        else
            AC_ERROR([could not determine the size of off_t])
        fi
    fi
    AC_MSG_RESULT([$off_t_value])
else
    off_t_value='apr_int32_t'
    off_t_fmt='#define APR_OFF_T_FMT "d"'
fi

APR_CHECK_SIZEOF_EXTENDED([#include <sys/types.h>], pid_t, 8)

if test "$ac_cv_sizeof_pid_t" = "$ac_cv_sizeof_short"; then
    pid_t_fmt='#define APR_PID_T_FMT "hd"'
elif test "$ac_cv_sizeof_pid_t" = "$ac_cv_sizeof_int"; then
    pid_t_fmt='#define APR_PID_T_FMT "d"'
elif test "$ac_cv_sizeof_pid_t" = "$ac_cv_sizeof_long"; then
    pid_t_fmt='#define APR_PID_T_FMT "ld"'
elif test "$ac_cv_sizeof_pid_t" = "$ac_cv_sizeof_long_long"; then
    pid_t_fmt='#define APR_PID_T_FMT APR_INT64_T_FMT'
else
    pid_t_fmt='#error Can not determine the proper size for pid_t'
fi

# Basically, we have tried to figure out the correct format strings
# for APR types which vary between platforms, but we don't always get 
# it right.  If you find that we don't get it right for your platform, 
# you can override our decision below.
case $host in
   *linux*)
       case $host in
           s390*)
               size_t_fmt='#define APR_SIZE_T_FMT "ld"'
               ;;
       esac
       ;;
   *os2_emx)
       size_t_fmt='#define APR_SIZE_T_FMT "lu"'
       ;;
   *-solaris*)
       pid_t_fmt='#define APR_PID_T_FMT "ld"'
       ;;
   *aix4*|*aix5*)
       ssize_t_fmt='#define APR_SSIZE_T_FMT "ld"'
       size_t_fmt='#define APR_SIZE_T_FMT "ld"'
       ;;
    *beos*)
        ssize_t_fmt='#define APR_SSIZE_T_FMT "ld"'
        size_t_fmt='#define APR_SIZE_T_FMT "ld"'
        ;;
    *apple-darwin*)
        ssize_t_fmt='#define APR_SSIZE_T_FMT "d"'
        size_t_fmt='#define APR_SIZE_T_FMT "lu"'
        ;;
esac

AC_SUBST(voidp_size)
AC_SUBST(short_value)
AC_SUBST(int_value)
AC_SUBST(long_value)
AC_SUBST(int64_value)
AC_SUBST(off_t_value)
AC_SUBST(size_t_value)
AC_SUBST(ssize_t_value)
AC_SUBST(socklen_t_value)
AC_SUBST(int64_t_fmt) 
AC_SUBST(int64_t_fmt_len) 
AC_SUBST(uint64_t_fmt) 
AC_SUBST(uint64_t_fmt_len) 
AC_SUBST(uint64_t_hex_fmt) 
AC_SUBST(ssize_t_fmt) 
AC_SUBST(size_t_fmt)
AC_SUBST(off_t_fmt) 
AC_SUBST(pid_t_fmt)
AC_SUBST(int64_literal) 
AC_SUBST(stdint) 

dnl ----------------------------- Checking for string functions
AC_CHECK_FUNCS(strnicmp, have_strnicmp="1", have_strnicmp="0")
AC_CHECK_FUNCS(strncasecmp, have_strncasecmp="1", have_strncasecmp="0")
AC_CHECK_FUNCS(stricmp, have_stricmp="1", have_stricmp="0")
AC_CHECK_FUNCS(strcasecmp, have_strcasecmp="1", have_strcasecmp="0")
AC_CHECK_FUNCS(strdup, have_strdup="1", have_strdup="0")
AC_CHECK_FUNCS(strstr, have_strstr="1", have_strstr="0")
AC_CHECK_FUNCS(memchr, have_memchr="1", have_memchr="0")
AC_CHECK_FUNCS($int64_strfn, have_int64_strfn="1", have_int64_strfn="0")

dnl ----------------------------- We have a fallback position
if test "$have_int64_strfn" = "0" && test "$int64_strfn" = "strtoll"; then
    int64_strfn="strtoq"
    AC_CHECK_FUNCS($int64_strfn, have_int64_strfn="1", have_int64_strfn="0")
fi

AC_SUBST(have_strnicmp)
AC_SUBST(have_strncasecmp)
AC_SUBST(have_stricmp)
AC_SUBST(have_strcasecmp)
AC_SUBST(have_strdup)
AC_SUBST(have_strstr)
AC_SUBST(have_memchr)
AC_SUBST(have_int64_strfn)
AC_SUBST(int64_strfn)

dnl ----------------------------- Checking for DSO support
echo "${nl}Checking for DSO..."
AC_ARG_ENABLE(dso,
  [  --disable-dso           Disable DSO support ],
  [ tempdso=$enableval],
  [ 
    AC_CHECK_FUNCS(NSLinkModule, [ tempdso="dyld" ], [ tempdso="no" ])
    if test "$tempdso" = "no"; then
      AC_CHECK_LIB(dld, shl_load, [ tempdso="shl" APR_ADDTO(LIBS,-ldld) ],
                   tempdso="no")
    fi
    if test "$tempdso" = "no"; then
      AC_CHECK_FUNCS(dlopen, [ tempdso="dlfcn" ], [ tempdso="no" ])
    fi
    if test "$tempdso" = "no"; then
      AC_CHECK_LIB(dl, dlopen, [ tempdso="dlfcn" APR_ADDTO(LIBS,-ldl) ], 
                   tempdso="no")
    fi
    if test "$tempdso" = "dlfcn"; then
        # ReliantUnix has dlopen() in libc but dlsym() in libdl :(
        AC_CHECK_FUNCS(dlsym, [ tempdso="dlfcn" ], [ tempdso="no" ])
        if test "$tempdso" = "no"; then
            AC_CHECK_LIB(dl, dlsym, [ tempdso="dlfcn" APR_ADDTO(LIBS, -ldl) ],
                         tempdso="no")
        fi
        if test "$tempdso" = "no"; then
            echo "Weird: dlopen() was found but dlsym() was not found!"
        fi
    fi
    if test "$tempdso" = "no"; then
      AC_CHECK_LIB(root, load_image, tempdso="yes", tempdso="no")
    fi
    if test "$tempdso" = "no"; then
        case $host in
            *os390|*-os2*|*os400)
                tempdso="yes"
                ;;
        esac
    fi
 ] )

if test "$tempdso" = "no"; then
    aprdso="0"
else
    case "$tempdso" in
    dlfcn) AC_DEFINE(DSO_USE_DLFCN, 1, [Define if DSO support uses dlfcn.h]);;
    shl)   AC_DEFINE(DSO_USE_SHL, 1, [Define if DSO support uses shl_load]);;
    dyld)  AC_DEFINE(DSO_USE_DYLD, 1, [Define if DSO support uses dyld.h]);;
    esac
    aprdso="1"
    apr_modules="$apr_modules dso"
fi

AC_SUBST(aprdso)

dnl ----------------------------- Checking for Processes
echo "${nl}Checking for Processes..."

AC_CHECK_FUNCS(waitpid)

AC_ARG_ENABLE(other-child,
  [  --enable-other-child    Enable reliable child processes ],
  [ if test "$enableval" = "yes"; then
        oc="1"
    else
        oc="0"
    fi ],
  [ oc=1 ] ) 
  
AC_SUBST(oc) 

AC_MSG_CHECKING(for Variable Length Arrays)
APR_TRY_COMPILE_NO_WARNING([],
[
    int foo[argc];
    foo[0] = 0;
], vla_msg=yes, vla_msg=no )
AC_MSG_RESULT([$vla_msg])
if test "$vla_msg" = "yes"; then
    AC_DEFINE(HAVE_VLA, 1, [Define if C compiler supports VLA])
fi

AC_CACHE_CHECK(struct rlimit,ac_cv_struct_rlimit,[
AC_TRY_RUN([
#include <sys/types.h>
#include <sys/time.h>
#include <sys/resource.h>
main()
{
    struct rlimit limit;
    limit.rlim_cur = 0;
    limit.rlim_max = 0;
    exit(0);
}], [
    ac_cv_struct_rlimit=yes ], [
    ac_cv_struct_rlimit=no ], [
    ac_cv_struct_rlimit=no ] ) ] )
struct_rlimit=0
test "x$ac_cv_struct_rlimit" = xyes && struct_rlimit=1
AC_SUBST(struct_rlimit)

dnl ----------------------------- Checking for Locking Characteristics 
echo "${nl}Checking for Locking..."

AC_CHECK_FUNCS(semget semctl flock)
AC_CHECK_HEADERS(semaphore.h)
AC_CHECK_FUNCS(sem_close sem_unlink sem_post sem_wait)

# Some systems return ENOSYS from sem_open.
AC_CACHE_CHECK(for working sem_open,ac_cv_func_sem_open,[
AC_TRY_RUN([
#include <errno.h>
#include <stdlib.h>
#include <fcntl.h>
#include <semaphore.h>
main()
{
    sem_t *psem;
    const char *sem_name = "/apr_autoconf";

    if (sizeof(int) < sizeof(sem_t *))
        exit(1);
    psem = sem_open(sem_name, O_CREAT, 0644, 1);
    if (psem == (sem_t *)SEM_FAILED) {
	exit(1);
    }
    sem_close(psem);
    sem_unlink(sem_name);
    exit(0);
}], [ac_cv_func_sem_open=yes], [ac_cv_func_sem_open=no],
[ac_cv_func_sem_open=no])])

# It's stupid, but not all platforms have union semun, even those that need it.
AC_MSG_CHECKING(for union semun in sys/sem.h)
AC_TRY_COMPILE([
#include <sys/types.h>
#include <sys/ipc.h>
#include <sys/sem.h>
],[
union semun arg;
semctl(0, 0, 0, arg);
], [have_union_semun="1" union_semun=yes ]
msg=yes, [
have_union_semun="0"
msg=no ] )
AC_MSG_RESULT([$msg])
AC_SUBST(have_union_semun)

dnl Checks for libraries.
APR_CHECK_DEFINE(LOCK_EX, sys/file.h)
APR_CHECK_DEFINE(F_SETLK, fcntl.h)
APR_CHECK_DEFINE(SEM_UNDO, sys/sem.h)

# We are assuming that if the platform doesn't have POLLIN, it doesn't have
# any POLL definitions.
APR_CHECK_DEFINE_FILES(POLLIN, poll.h sys/poll.h)

if test "$threads" = "1"; then
    APR_CHECK_DEFINE(PTHREAD_PROCESS_SHARED, pthread.h)
    AC_CHECK_FUNCS(pthread_mutexattr_setpshared)
    # Some systems have setpshared and define PROCESS_SHARED, but don't 
    # really support PROCESS_SHARED locks.  So, we must validate that we 
    # can go through the steps without receiving some sort of system error.
    # Linux and older versions of AIX have this problem.
    APR_IFALLYES(header:pthread.h define:PTHREAD_PROCESS_SHARED func:pthread_mutexattr_setpshared, [
      AC_CACHE_CHECK([for working PROCESS_SHARED locks], apr_cv_process_shared_works, [
      AC_TRY_RUN([
#include <sys/types.h>
#include <pthread.h>
        int main()
        {