configure.in

linux subdivision ying gai ke yi le ba

dnl 
dnl Autoconf configuration file for APR
dnl 
dnl Process this file with autoconf to produce a configure script.
dnl Use ./buildconf to prepare build files and run autoconf for APR.

AC_INIT(build/apr_common.m4)
AC_CONFIG_HEADER(include/arch/unix/apr_private.h)
AC_CONFIG_AUX_DIR(build)

dnl 
dnl Include our own M4 macros along with those for libtool
dnl 
sinclude(build/apr_common.m4)
sinclude(build/apr_network.m4)
sinclude(build/apr_threads.m4)
sinclude(build/apr_hints.m4)
sinclude(build/libtool.m4)

dnl Save user-defined environment settings for later restoration
dnl
APR_SAVE_THE_ENVIRONMENT(CPPFLAGS)
APR_SAVE_THE_ENVIRONMENT(CFLAGS)
APR_SAVE_THE_ENVIRONMENT(LDFLAGS)
APR_SAVE_THE_ENVIRONMENT(LIBS)
APR_SAVE_THE_ENVIRONMENT(INCLUDES)

dnl Generate ./config.nice for reproducing runs of configure
dnl
APR_CONFIG_NICE(config.nice)

AC_CANONICAL_SYSTEM
echo "Configuring APR library"
echo "Platform: $host"

dnl Some initial steps for configuration.  We setup the default directory
dnl and which files are to be configured.

dnl Setup the directory macros now

# Absolute source/build directory
apr_srcdir=`(cd $srcdir && pwd)`
apr_builddir=`pwd`
AC_SUBST(apr_srcdir)
AC_SUBST(apr_builddir)

if test "$apr_builddir" != "$apr_srcdir"; then
  USE_VPATH=1
  APR_CONFIG_LOCATION=build
else
  APR_CONFIG_LOCATION=source
fi

AC_SUBST(APR_CONFIG_LOCATION)

# Libtool might need this symbol -- it must point to the location of
# the generated libtool script (not necessarily the "top" build dir).
#
top_builddir="$apr_builddir"
AC_SUBST(top_builddir)

# Directory containing apr build macros, helpers, and make rules
# NOTE: make rules (apr_rules.mk) will be in the builddir for vpath
#
apr_buildout=$apr_builddir/build
apr_builders=$apr_srcdir/build
AC_SUBST(apr_builders)

MKDIR=$apr_builders/mkdir.sh

dnl Initialize mkdir -p functionality.
APR_MKDIR_P_CHECK($apr_builders/mkdir.sh)

# get our version information
get_version="$apr_builders/get-version.sh"
version_hdr="$apr_srcdir/include/apr_version.h"
APR_MAJOR_VERSION="`$get_version major $version_hdr APR`"
APR_DOTTED_VERSION="`$get_version all $version_hdr APR`"

AC_SUBST(APR_DOTTED_VERSION)
AC_SUBST(APR_MAJOR_VERSION)

echo "APR Version: ${APR_DOTTED_VERSION}"

dnl Enable the layout handling code, then reparse the prefix-style
dnl arguments due to autoconf being a PITA.
APR_ENABLE_LAYOUT(apr)
APR_PARSE_ARGUMENTS

dnl Set optional CC hints here in case autoconf makes an inappropriate choice.
dnl This allows us to suggest what the compiler should be, but still
dnl allows the user to override CC externally.
APR_CC_HINTS

dnl Do the various CC checks *before* preloading values. The preload code
dnl may need to use compiler characteristics to make decisions. This macro
dnl can only be used once within a configure script, so this prevents a
dnl preload section from invoking the macro to get compiler info.
AC_PROG_CC

dnl Preload
APR_PRELOAD

dnl These added to allow default directories to be used...
DEFAULT_OSDIR="unix"
echo "(Default will be ${DEFAULT_OSDIR})"

apr_modules="file_io network_io threadproc misc locks time mmap shmem user memory atomic poll support"

dnl Checks for programs.
AC_PROG_MAKE_SET
AC_PROG_CPP
AC_PROG_AWK
AC_PROG_LN_S
AC_PROG_RANLIB
AC_PROG_INSTALL
AC_CHECK_PROG(RM, rm, rm)
AC_CHECK_PROG(AS, as, as)
AC_CHECK_PROG(ASCPP, cpp, cpp)
AC_CHECK_TOOL(AR, ar, ar)

dnl Various OS checks that apparently set required flags
AC_AIX
AC_ISC_POSIX
AC_MINIX

APR_EBCDIC

dnl this is our library name
APR_LIBNAME="apr${libsuffix}"
AC_SUBST(APR_LIBNAME)

dnl prep libtool
dnl
echo "performing libtool configuration..."

AC_ARG_ENABLE(experimental-libtool,[  --experimental-libtool Use experimental custom libtool (not included in source distribution)],
  [experimental_libtool=$enableval],[experimental_libtool=no])

case $host in
*os2*)
    # Use a custom-made libtool replacement
    echo "using aplibtool"
    LIBTOOL="$srcdir/build/aplibtool"
    gcc $CFLAGS $CPPFLAGS -o $LIBTOOL.exe $LIBTOOL.c
    ;;
*)
    if test "x$LTFLAGS" = "x"; then
        LTFLAGS='--silent'
    fi
    if test "$experimental_libtool" = "yes"; then
        # Use a custom-made libtool replacement
        echo "using jlibtool"
        LIBTOOL="$apr_builddir/libtool"
        LIBTOOL_SRC="$apr_srcdir/build/jlibtool.c"
        if test ! -f $LIBTOOL_SRC; then
          AC_MSG_ERROR([Experimental libtool source not found.  It is not included with APR by default.])
        fi
        $CC $CFLAGS $CPPFLAGS -o $LIBTOOL $LIBTOOL_SRC
    else
    dnl libtoolize requires that the following not be indented
AC_PROG_LIBTOOL
        # get libtool's setting of shlibpath_var
        eval `grep "^shlibpath_var=[[A-Z_]]*$" $apr_builddir/libtool`
        if test "x$shlibpath_var" = "x"; then
            shlibpath_var=REPLACE_WITH_YOUR_SHLIBPATH_VAR
        fi
    fi
    ;;
esac

AC_ARG_WITH(installbuilddir, [  --with-installbuilddir=DIR location to store APR build files (defaults to '${datadir}/build')],
  [ installbuilddir=$withval ], [ installbuilddir="${datadir}/build" ] )
AC_SUBST(installbuilddir)

AC_ARG_WITH(libtool, [  --without-libtool       avoid using libtool to link the library],
  [ use_libtool=$withval ], [ use_libtool="yes" ] )

if test "x$use_libtool" = "xyes"; then
      lt_compile='$(LIBTOOL) $(LTFLAGS) --mode=compile $(COMPILE) -c $< && touch $@'
      LT_VERSION="-version-info `$get_version libtool $version_hdr APR`"
      link="\$(LIBTOOL) \$(LTFLAGS) --mode=link \$(LT_LDFLAGS) \$(COMPILE) ${LT_VERSION} \$(ALL_LDFLAGS) -o \$@"
      so_ext='lo'
      lib_target='-rpath $(libdir) $$objects'
      export_lib_target='-rpath \$(libdir) \$\$objects'
else
      lt_compile='$(COMPILE) -c $<'
      link='$(AR) cr $(TARGET_LIB) $$objects; $(RANLIB) $(TARGET_LIB)'
      so_ext='o'
      lib_target=''
      export_lib_target=''
fi

case $host in
    *-solaris2*)
        apr_platform_runtime_link_flag="-R"
        ;;
    *)
        ;;
esac

AC_SUBST(lt_compile)
AC_SUBST(link)
AC_SUBST(so_ext)
AC_SUBST(lib_target)
AC_SUBST(export_lib_target)
AC_SUBST(shlibpath_var)
AC_SUBST(LTFLAGS)
AC_SUBST(LT_LDFLAGS)

dnl ----------------------------- Checks for compiler flags
nl='
'
echo "${nl}Check for compiler flags..."

dnl AC_PROG_CC sets -g in CFLAGS (and -O2 for gcc) by default.
dnl On OS/390 this causes the compiler to insert extra debugger
dnl hook instructions.  That's fine for debug/maintainer builds, not fine
dnl otherwise.

case $host in
    *os390)
        if test "$ac_test_CFLAGS" != set; then
           APR_REMOVEFROM(CFLAGS,-g)
        fi
        ;;
esac

AC_ARG_ENABLE(debug,[  --enable-debug          Turn on debugging and compile time warnings],
  [APR_ADDTO(CFLAGS,-g)
   if test "$GCC" = "yes"; then
     APR_ADDTO(CFLAGS,-Wall)
   elif test "$AIX_XLC" = "yes"; then
     APR_ADDTO(CFLAGS,-qfullpath)
   fi
])dnl

AC_ARG_ENABLE(maintainer-mode,[  --enable-maintainer-mode  Turn on debugging and compile time warnings],
  [APR_ADDTO(CFLAGS,-g)
   if test "$GCC" = "yes"; then
     APR_ADDTO(CFLAGS,[-Wall -Wmissing-prototypes -Wstrict-prototypes -Wmissing-declarations])
   elif test "$AIX_XLC" = "yes"; then
     APR_ADDTO(CFLAGS,-qfullpath -qinitauto=FE -qcheck=all -qinfo=pro)
   fi
])dnl

AC_ARG_ENABLE(profile,[  --enable-profile        Turn on profiling for the build (GCC)],
  if test "$GCC" = "yes"; then
    APR_ADDTO(CFLAGS, -pg)
    APR_REMOVEFROM(CFLAGS, -g)
    if test "$host" = "i586-pc-beos"; then
        APR_REMOVEFROM(CFLAGS, -O2)
        APR_ADDTO(CFLAGS, -O1)
        APR_ADDTO(LDFLAGS, -p)
    fi
  fi
)dnl

AC_ARG_ENABLE(pool-debug,
  [  --enable-pool-debug[[=yes|no|verbose|verbose-alloc|lifetime|owner|all]]    Turn on pools debugging],
  [ if test -z "$enableval"; then
        APR_ADDTO(CPPFLAGS, -DAPR_POOL_DEBUG=1)
    elif test ! "$enableval" = "no"; then
        apr_pool_debug=1
    
        for i in $enableval
        do
            flag=0
        
            case $i in
            yes)
                flag=1
                ;;
            verbose)
                flag=2
                ;;
            lifetime)
                flag=4
                ;;
            owner)
                flag=8
                ;;
            verbose-alloc)
                flag=16
                ;;
            all)
                apr_pool_debug=31
                ;;
            *)
                ;;
            esac

            if test $flag -gt 0; then
                apr_pool_debug=`expr '(' $apr_pool_debug - $apr_pool_debug % \
                    '(' $flag '*' 2 ')' ')' + $flag + $apr_pool_debug % $flag`
            fi
        done
      
        APR_ADDTO(CPPFLAGS, -DAPR_POOL_DEBUG=$apr_pool_debug)
    fi
  ])

dnl Electric Fence malloc checker.
dnl --with-efence specifies the path to Electric Fence
AC_ARG_WITH(efence, 
  [  --with-efence[[=DIR]]     path to Electric Fence installation], 
  [ apr_efence_dir="$withval"
    if test "$apr_efence_dir" != "yes"; then
      APR_ADDTO(LDFLAGS,[-L$apr_efence_dir/lib])
      if test "x$apr_platform_runtime_link_flag" != "x"; then
          APR_ADDTO(LDFLAGS, 
                    [$apr_platform_runtime_link_flag$apr_efence_dir/lib])
      fi
    fi
    AC_CHECK_LIB(efence, malloc, 
                 [ APR_ADDTO(LIBS,-lefence) ],
                 [ AC_MSG_ERROR(Electric Fence requested but not detected) ])
  ])

if test "$host" = "i586-pc-beos"; then
  AC_ARG_ENABLE(malloc-debug,[  --enable-malloc-debug   Switch on malloc_debug for BeOS],
    APR_REMOVEFROM(CFLAGS, -O2)
    APR_ADDTO(CPPFLAGS, -fcheck-memory-usage -D_KERNEL_MODE)
  ) dnl
fi

# this is the place to put specific options for platform/compiler
# combinations
case "$host:$CC" in
    *-hp-hpux*:cc )
	APR_ADDTO(CFLAGS,[-Ae +Z])
	case $host in
	  ia64-* )
	    ;;
          * )
	    if echo "$CFLAGS " | grep '+DA' >/dev/null; then :
	    else
	      APR_ADDTO(CFLAGS,[+DAportable])
	    fi 
	    ;;
        esac
	;;
    powerpc-*-beos:mwcc* )
	APR_SETVAR(CPP,[mwcc -E])
	APR_SETVAR(CC,mwcc)
	APR_SETVAR(AR,ar)
	;;
esac

dnl Check the depend program we can use
APR_CHECK_DEPEND

# force_atomic_generic flag 
# this will be set we find a cpu/OS combo
# which is historical and doesn't work with the method
# we are using for the more up to date cpu/OS
# (ie.. old sparcs)
apr_force_atomic_generic=0
proc_mutex_is_global=0
nonportable_atomics_enabled=0

AC_ARG_ENABLE(nonportable-atomics,
[  --enable-nonportable-atomics  Turn on optimized atomic code which may produce nonportable binaries],
[
    if test "$enableval" = "yes"; then
        nonportable_atomics_enabled=1
    fi
])

config_subdirs="none"
INSTALL_SUBDIRS="none"
case $host in
   i386-ibm-aix* | *-ibm-aix[1-2].* | *-ibm-aix3.* | *-ibm-aix4.1 | *-ibm-aix4.1.* | *-ibm-aix4.2 | *-ibm-aix4.2.*)
       OSDIR="aix"
       APR_ADDTO(LDFLAGS,-lld)
       eolstr="\\n"
       ;;
   *-os2*)
       APR_ADDTO(CPPFLAGS,-DOS2)
       APR_ADDTO(CFLAGS,-Zmt)
       AC_CHECK_LIB(bsd, random)
       OSDIR="os2"
       enable_threads="system_threads"
       eolstr="\\r\\n"
       file_as_socket="0"
       proc_mutex_is_global=1
       ;;
   *beos*)
       OSDIR="beos"
       APR_ADDTO(CPPFLAGS,-DBEOS)
       enable_threads="system_threads"
       native_mmap_emul="1"
       APR_CHECK_DEFINE(BONE_VERSION, sys/socket.h)
       eolstr="\\n"
       osver=`uname -r`
       proc_mutex_is_global=1
       case $osver in
          5.0.4)
             file_as_socket="1"
             ;;
          *)
             file_as_socket="0"
             ;;
       esac
       ;;
   *os390)
       OSDIR="os390"
       eolstr="\\n"
       ;;
   *os400)
       OSDIR="as400"
       eolstr="\\n"
       ;;
   *cygwin*)
       OSDIR="unix"
       APR_ADDTO(CPPFLAGS,-DCYGWIN)
       enable_threads="no"
       eolstr="\\n"
       ;;
   *linux*)
       apr_force_atomic_generic=1
       case $host_cpu in
         i486|i586|i686)
            if test "$nonportable_atomics_enabled" = 1; then
              apr_force_atomic_generic=0
            fi
            ;;
       esac
       OSDIR="unix"
       eolstr="\\n"
       ;;
   *hpux10* ) 
       enable_threads="no"
       OSDIR="unix"
       eolstr="\\n"
       ;;
   *)
       OSDIR="unix"
       eolstr="\\n"
       ;;
esac

AC_SUBST(apr_force_atomic_generic)
AC_SUBST(proc_mutex_is_global)
AC_SUBST(eolstr)
AC_SUBST(INSTALL_SUBDIRS)

# For some platforms we need a version string which allows easy numeric
# comparisons.
case $host in
    *freebsd*)
        # 3.4-RELEASE: 340   4.1.1-RELEASE: 411
        os_version=`uname -r | sed -e 's/\(.\)\.\(.\)\.\(.\).*/\1\2\3/' | sed -e 's/\(.\)\.\(.\)\-.*/\1\20/'`
        ;;
    *linux*)
        os_version=`uname -r | sed -e 's/\(.\)\.\(.\)\.\(.\).*/\1\2\3/'`
        ;;
    *darwin*)
        os_version=`uname -r | sed -e 's/\(.\)\.\(.\).*/\1\2/'`
        ;;
    *)
        os_version=OS_VERSION_IS_NOT_SET
        ;;
esac

dnl ----------------------------- Checks for Any required Libraries
dnl Note: Autoconf will always append LIBS with an extra " " in AC_CHECK_LIB.
dnl It should check for LIBS being empty and set LIBS equal to the new value 
dnl without the extra " " in that case, but they didn't do that.  So, we
dnl end up LIBS="-lm -lcrypt -lnsl  -ldl" which is an annoyance.
AC_CHECK_LIB(resolv, res_init)
AC_CHECK_LIB(nsl, gethostbyname)
AC_SEARCH_LIBS(gethostname, nsl)
AC_CHECK_LIB(socket, socket)
AC_SEARCH_LIBS(crypt, crypt ufc)
AC_CHECK_LIB(truerand, main)
AC_SEARCH_LIBS(modf, m)
AC_SEARCH_LIBS(sqrt, m)

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

if test -z "$enable_threads"; then
	AC_ARG_ENABLE(threads,
	[  --enable-threads        Enable threading support in APR.],
	[ enable_threads=$enableval] ,
	[ APR_CHECK_PTHREADS_H([ enable_threads="pthread" ] ,
	                       [ enable_threads="no" ] ) ] )
fi

if test "$enable_threads" = "no"; then
    threads="0"
    pthreadh="0"
    pthreadser="0"
else
    if test "$enable_threads" = "pthread"; then
# We have specified pthreads for our threading library, just make sure
# that we have everything we need
      APR_PTHREADS_CHECK_SAVE
      APR_PTHREADS_CHECK