configure.in

Apache官方在今天放出产品系列2.2的最新版本2.2.11的源码包 最流行的HTTP服务器软件之一

havemmapshm="0"
haveshmget="0"
havebeosarea="0"
haveos2shm="0"
havewin32shm="0"
APR_BEGIN_DECISION([namebased memory allocation method])
APR_IFALLYES(header:sys/mman.h func:mmap func:munmap,
             [havemmaptmp="1"
              APR_DECIDE(USE_SHMEM_MMAP_TMP, 
                  [Classical mmap() on temporary file])])
APR_IFALLYES(header:sys/mman.h func:mmap func:munmap func:shm_open dnl
             func:shm_unlink,
             [havemmapshm="1"
              APR_DECIDE(USE_SHMEM_MMAP_SHM, 
                  [mmap() via POSIX.1 shm_open() on temporary file])])
APR_IFALLYES(header:sys/ipc.h header:sys/shm.h header:sys/file.h dnl
             func:shmget func:shmat func:shmdt func:shmctl,
             [haveshmget="1"
              APR_DECIDE(USE_SHMEM_SHMGET, [SysV IPC shmget()])])
APR_IFALLYES(header:kernel/OS.h func:create_area,
             [havebeosshm="1"
              APR_DECIDE(USE_SHMEM_BEOS, [BeOS areas])])
APR_IFALLYES(header:os2.h,
             [haveos2shm="1"
              APR_DECIDE(USE_SHMEM_OS2, [OS/2 DosAllocSharedMem()])])
APR_IFALLYES(header:windows.h,
             [havewin32shm="1"
              APR_DECIDE(USE_SHMEM_WIN32, [Windows shared memory])])
case $host in
    *linux* ) 
        # Linux has problems with MM_SHMT_MMANON even though it reports
        # that it has it.
        # FIXME - find exact 2.3 version that MMANON was fixed in.  It is
        # confirmed fixed in 2.4 series.
        if test $os_version -le "240"; then
            APR_DECISION_OVERRIDE(USE_SHMEM_MMAP_TMP USE_SHMEM_MMAP_SHM dnl
                                  USE_SHMEM_SHMGET)
        fi
        ;;
esac
APR_END_DECISION
AC_DEFINE_UNQUOTED($ac_decision)

usemmaptmp="0"
usemmapshm="0"
useshmget="0"
usebeosarea="0"
useos2shm="0"
usewin32shm="0"

case $ac_decision in
    USE_SHMEM_MMAP_TMP )
        usemmaptmp="1"
        ;;
    USE_SHMEM_MMAP_SHM )
        usemmapshm="1"
        ;;
    USE_SHMEM_SHMGET )
        useshmget="1"
        ;;
    USE_SHMEM_BEOS )
        usebeosarea="1"
        ;;
    USE_SHMEM_OS2 )
        useos2shm="1"
        ;;
    USE_SHMEM_WIN32 )
        usewin32shm="1"
        ;;
esac

# Do we have any shared memory support?
if test "$usemmaptmp$usemmapshm$usemmapzero$useshmget$usemmapanon$usebeosarea$useos2shm$usewin32shm" = "00000000"; then
  sharedmem="0"
else
  sharedmem="1"
fi

AC_SUBST(usemmaptmp)
AC_SUBST(usemmapshm)
AC_SUBST(useshmget)
AC_SUBST(usebeosarea)
AC_SUBST(useos2shm)
AC_SUBST(usewin32shm)
AC_SUBST(havemmaptmp)
AC_SUBST(havemmapshm)
AC_SUBST(haveshmget)
AC_SUBST(havebeosarea)
AC_SUBST(haveos2shm)
AC_SUBST(havewin32shm)
AC_SUBST(sharedmem)

dnl ----------------------------- Checks for Any required Functions
dnl Checks for library functions. (N.B. poll is further down)

AC_FUNC_ALLOCA

AC_CHECK_FUNCS([calloc setsid isinf isnan \
                getenv putenv setenv unsetenv \
                writev getifaddrs utime utimes])
AC_CHECK_FUNCS(setrlimit, [ have_setrlimit="1" ], [ have_setrlimit="0" ]) 
AC_CHECK_FUNCS(getrlimit, [ have_getrlimit="1" ], [ have_getrlimit="0" ]) 
sendfile="0"
AC_CHECK_LIB(sendfile, sendfilev)
AC_CHECK_FUNCS(sendfile send_file sendfilev, [ sendfile="1" ])

dnl THIS MUST COME AFTER THE THREAD TESTS - FreeBSD doesn't always have a
dnl threaded poll() and we don't want to use sendfile on early FreeBSD 
dnl systems if we are also using threads.

AC_ARG_WITH(sendfile, [  --with-sendfile         Override decision to use sendfile],
  [ if test "$withval" = "yes"; then
        sendfile="1"
    else
        sendfile="0"
    fi ], [
    orig_sendfile=$sendfile
    case $host in
        *freebsd*)
            # FreeBSD < 4.2 has issues with threads+sendfile
            if test $os_version -le "401999"; then
                if test "$threads" = "1"; then
                    sendfile="0"
                fi
            fi
            ;;
        *alpha*-dec-osf* )
            sendfile="0"
            ;;
        s390-*-linux-gnu)
            # disable sendfile support for 2.2 on S/390
            if test $os_version -lt 240; then
                sendfile="0"
            fi
            ;;
        *aix*)
            # compiler-independent check for 64-bit build
            AC_CHECK_SIZEOF(void*, 4)
            if test "x$ac_cv_sizeof_voidp" = "x8"; then
                # sendfile not working for 64-bit build
                sendfile="0"
            fi
            ;;
    esac       
    if test "$orig_sendfile" != "$sendfile"; then
      echo "sendfile support disabled to avoid system problem"
    fi ] )
AC_SUBST(sendfile)

AC_CHECK_FUNCS(sigaction, [ have_sigaction="1" ], [ have_sigaction="0" ]) 
AC_DECL_SYS_SIGLIST

AC_CHECK_FUNCS(fork, [ fork="1" ], [ fork="0" ])
APR_CHECK_INET_ADDR
APR_CHECK_INET_NETWORK
AC_SUBST(apr_inaddr_none)
AC_CHECK_FUNC(_getch)
AC_CHECK_FUNCS(strerror_r, [ strerror_r="1" ], [ strerror_r="0" ])
if test "$strerror_r" = "1"; then
  APR_CHECK_STRERROR_R_RC
fi
AC_CHECK_FUNCS(mmap, [ mmap="1" ], [ mmap="0" ])
if test "$native_mmap_emul" = "1"; then
    mmap="1"
fi
AC_CHECK_FUNCS(memmove, [ have_memmove="1" ], [have_memmove="0" ])
AC_CHECK_FUNCS([getpass getpassphrase gmtime_r localtime_r mkstemp])

AC_SUBST(fork)
AC_SUBST(have_inet_addr)
AC_SUBST(tcp_nodelay_inherited)
AC_SUBST(o_nonblock_inherited)
AC_SUBST(have_inet_network)
AC_SUBST(have_sigaction)
AC_SUBST(have_setrlimit)
AC_SUBST(have_getrlimit)
AC_SUBST(mmap)
AC_SUBST(have_memmove)

APR_CHECK_SIGWAIT_ONE_ARG

dnl ----------------------------- Checks for Any required Headers
AC_HEADER_STDC

APR_FLAG_HEADERS(
    ByteOrder.h		\
    conio.h		\
    crypt.h		\
    ctype.h		\
    dir.h		\
    dirent.h		\
    dl.h		\
    dlfcn.h		\
    errno.h		\
    fcntl.h		\
    grp.h		\
    io.h		\
    limits.h		\
    mach-o/dyld.h	\
    malloc.h		\
    memory.h		\
    netdb.h		\
    osreldate.h		\
    poll.h		\
    process.h		\
    pwd.h		\
    semaphore.h		\
    signal.h		\
    stdarg.h		\
    stddef.h		\
    stdio.h		\
    stdlib.h		\
    string.h		\
    strings.h		\
    sysapi.h		\
    sysgtime.h		\
    termios.h		\
    time.h		\
    tpfeq.h		\
    tpfio.h		\
    unistd.h		\
    unix.h		\
    windows.h		\
    winsock2.h		\
    arpa/inet.h		\
    kernel/OS.h		\
    net/errno.h		\
    netinet/in.h	\
    netinet/sctp.h      \
    netinet/sctp_uio.h  \
    sys/file.h		\
    sys/ioctl.h         \
    sys/mman.h		\
    sys/param.h         \
    sys/poll.h		\
    sys/resource.h	\
    sys/select.h	\
    sys/sem.h		\
    sys/sendfile.h	\
    sys/signal.h	\
    sys/socket.h	\
    sys/sockio.h	\
    sys/stat.h          \
    sys/sysctl.h	\
    sys/syslimits.h	\
    sys/time.h		\
    sys/types.h		\
    sys/uio.h		\
    sys/un.h		\
    sys/wait.h)

# IRIX 6.5 has a problem in <netinet/tcp.h> which prevents it from
# being included by itself.  Check for <netinet/tcp.h> manually,
# including another header file first.
AC_CACHE_CHECK([for netinet/tcp.h], [apr_cv_hdr_netinet_tcp_h],
[AC_TRY_CPP(
[#ifdef HAVE_NETINET_IN_H
#include <netinet/in.h>
#endif
#include <netinet/tcp.h>
], [apr_cv_hdr_netinet_tcp_h=yes], [apr_cv_hdr_netinet_tcp_h=no])])
if test "$apr_cv_hdr_netinet_tcp_h" = "yes"; then
   netinet_tcph=1
   AC_DEFINE([HAVE_NETINET_TCP_H], 1, [Defined if netinet/tcp.h is present])
else
   netinet_tcph=0
fi

AC_SUBST(arpa_ineth)
AC_SUBST(conioh)
AC_SUBST(ctypeh)
AC_SUBST(crypth)
AC_SUBST(errnoh)
AC_SUBST(direnth)
AC_SUBST(fcntlh)
AC_SUBST(ioh)
AC_SUBST(limitsh)
AC_SUBST(netdbh)
AC_SUBST(sys_syslimitsh)
AC_SUBST(netinet_inh)
AC_SUBST(netinet_sctph)
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)
AC_SUBST(windowsh)
AC_SUBST(winsock2h)

# 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_FUNC_SETPGRP

APR_CHECK_SOCKLEN_T

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 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 "$ac_cv_sizeof_int" = "8"; then
    int64_literal='#define APR_INT64_C(val) (val)'
    uint64_literal='#define APR_UINT64_C(val) (val##U)'
    int64_t_fmt='#define APR_INT64_T_FMT "d"'
    uint64_t_fmt='#define APR_UINT64_T_FMT "u"'
    uint64_t_hex_fmt='#define APR_UINT64_T_HEX_FMT "x"'
    int64_value="int"
    long_value=int
    int64_strfn="strtoi"
elif test "$ac_cv_sizeof_long" = "8"; then
    int64_literal='#define APR_INT64_C(val) (val##L)'
    uint64_literal='#define APR_UINT64_C(val) (val##UL)'
    int64_t_fmt='#define APR_INT64_T_FMT "ld"'
    uint64_t_fmt='#define APR_UINT64_T_FMT "lu"'
    uint64_t_hex_fmt='#define APR_UINT64_T_HEX_FMT "lx"'
    int64_value="long"
    long_value=long
    int64_strfn="strtol"
elif test "$ac_cv_sizeof_long_long" = "8"; then
    int64_literal='#define APR_INT64_C(val) (val##LL)'
    uint64_literal='#define APR_UINT64_C(val) (val##ULL)'
    # Linux, Solaris, FreeBSD all support ll with printf.
    # BSD 4.4 originated 'q'.  Solaris is more popular and 
    # doesn't support 'q'.  Solaris wins.  Exceptions can
    # go to the OS-dependent section.
    int64_t_fmt='#define APR_INT64_T_FMT "lld"'
    uint64_t_fmt='#define APR_UINT64_T_FMT "llu"'
    uint64_t_hex_fmt='#define APR_UINT64_T_HEX_FMT "llx"'
    int64_value="long long"
    long_value="long long"
    int64_strfn="strtoll"
elif test "$ac_cv_sizeof_longlong" = "8"; then
    int64_literal='#define APR_INT64_C(val) (val##LL)'
    uint64_literal='#define APR_UINT64_C(val) (val##ULL)'
    int64_t_fmt='#define APR_INT64_T_FMT "qd"'
    uint64_t_fmt='#define APR_UINT64_T_FMT "qu"'
    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.
    AC_ERROR([could not detect a 64-bit integer type])
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)'
    uint64_literal='#define APR_UINT64_C(val) UINT64_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>], pid_t, 8)

if test "$ac_cv_sizeof_pid_t" = "$ac_cv_sizeof_short"; then