dnl -----------------------------------------------------------------
dnl apr_hints.m4: APR's autoconf macros for platform-specific hints
dnl
dnl  We preload various configure settings depending
dnl  on previously obtained platform knowledge.
dnl  We allow all settings to be overridden from
dnl  the command-line.
dnl
dnl  We maintain the "format" that we've used
dnl  under 1.3.x, so we don't exactly follow
dnl  what is "recommended" by autoconf.

dnl
dnl APR_PRELOAD
dnl
dnl  Preload various ENV/makefile params such as CC, CFLAGS, etc
dnl  based on outside knowledge
dnl
dnl  Generally, we force the setting of CC, and add flags
dnl  to CFLAGS, CPPFLAGS, LIBS and LDFLAGS. 
dnl
AC_DEFUN(APR_PRELOAD, [
if test "x$apr_preload_done" != "xyes" ; then

  apr_preload_done="yes"

  echo "Applying APR hints file rules for $host"

  case "$host" in
    *mint)
	APR_ADDTO(CPPFLAGS, [-DMINT])
	APR_ADDTO(LIBS, [-lportlib])
	;;
    *MPE/iX*)
	APR_ADDTO(CPPFLAGS, [-DMPE -D_POSIX_SOURCE -D_SOCKET_SOURCE])
	APR_ADDTO(LIBS, [-lsvipc -lcurses])
	APR_ADDTO(LDFLAGS, [-Xlinker \"-WL,cap=ia,ba,ph;nmstack=1024000\"])
	;;
    *-apple-aux3*)
	APR_ADDTO(CPPFLAGS, [-DAUX3 -D_POSIX_SOURCE])
	APR_ADDTO(LIBS, [-lposix -lbsd])
	APR_ADDTO(LDFLAGS, [-s])
	APR_SETVAR(SHELL, [/bin/ksh])
	;;
    *-ibm-aix*)
	APR_ADDTO(CPPFLAGS, [-U__STR__ -D_THREAD_SAFE])
        dnl _USR_IRS gets us the hstrerror() proto in netdb.h
        case $host in
            *-ibm-aix4.3)
	        APR_ADDTO(CPPFLAGS, [-D_USE_IRS])
	        ;;
            *-ibm-aix5*)
	        APR_ADDTO(CPPFLAGS, [-D_USE_IRS])
	        ;;
            *-ibm-aix4.3.*)
                APR_ADDTO(CPPFLAGS, [-D_USE_IRS])
                ;;
        esac
        dnl If using xlc, remember it, and give it the right options.
        if $CC 2>&1 | grep 'xlc' > /dev/null; then
          APR_SETIFNULL(AIX_XLC, [yes])
          APR_ADDTO(CFLAGS, [-qHALT=E])
        fi
	APR_SETIFNULL(apr_sysvsem_is_global, [yes])
	APR_SETIFNULL(apr_lock_method, [USE_SYSVSEM_SERIALIZE])
        case $host in
            *-ibm-aix3* | *-ibm-aix4.1.*)
                ;;
            *)
                APR_ADDTO(LDFLAGS, [-Wl,-brtl])
                ;;
	esac
        ;;
    *-apollo-*)
	APR_ADDTO(CPPFLAGS, [-DAPOLLO])
	;;
    *-dg-dgux*)
	APR_ADDTO(CPPFLAGS, [-DDGUX])
	;;
    *os2_emx*)
	APR_SETVAR(SHELL, [sh])
	APR_SETIFNULL(apr_gethostbyname_is_thread_safe, [yes])
	APR_SETIFNULL(apr_gethostbyaddr_is_thread_safe, [yes])
	;;
    *-hi-hiux)
	APR_ADDTO(CPPFLAGS, [-DHIUX])
	;;
    *-hp-hpux11.*)
	APR_ADDTO(CPPFLAGS, [-DHPUX11 -D_REENTRANT -D_XOPEN_SOURCE_EXTENDED])
	;;
    *-hp-hpux10.*)
 	case $host in
 	  *-hp-hpux10.01)
dnl	       # We know this is a problem in 10.01.
dnl	       # Not a problem in 10.20.  Otherwise, who knows?
	       APR_ADDTO(CPPFLAGS, [-DSELECT_NEEDS_CAST])
	       ;;	     
 	esac
	APR_ADDTO(CPPFLAGS, [-D_REENTRANT])
	;;
    *-hp-hpux*)
	APR_ADDTO(CPPFLAGS, [-DHPUX -D_REENTRANT])
	;;
    *-linux*)
        case `uname -r` in
	    2.* )  APR_ADDTO(CPPFLAGS, [-DLINUX=2])
	           ;;
	    1.* )  APR_ADDTO(CPPFLAGS, [-DLINUX=1])
	           ;;
	    * )
	           ;;
        esac
	APR_ADDTO(CPPFLAGS, [-D_REENTRANT -D_GNU_SOURCE])
	;;
    *-GNU*)
	APR_ADDTO(CPPFLAGS, [-DHURD -D_GNU_SOURCE])
	;;
    *-lynx-lynxos)
	APR_ADDTO(CPPFLAGS, [-D__NO_INCLUDE_WARN__ -DLYNXOS])
	APR_ADDTO(LIBS, [-lbsd])
	;;
    *486-*-bsdi*)
	APR_ADDTO(CFLAGS, [-m486])
	;;
    *-*-bsdi*)
        case $host in
            *bsdi4.1)
                APR_ADDTO(CFLAGS, [-D_REENTRANT])
                ;;
        esac
        ;;
    *-openbsd*)
	APR_ADDTO(CPPFLAGS, [-D_POSIX_THREADS])
        # getsockname() reports the wrong address on a socket
        # bound to an ephmeral port so the test fails.
        APR_SETIFNULL(ac_cv_o_nonblock_inherited, [yes])
	;;
    *-netbsd*)
	APR_ADDTO(CPPFLAGS, [-DNETBSD])
        # fcntl() lies about O_NONBLOCK on an accept()ed socket (PR kern/26950)
        APR_SETIFNULL(ac_cv_o_nonblock_inherited, [yes])
	;;
    *-freebsd*)
	case $host in
	    *freebsd[2345]*)
		APR_ADDTO(CFLAGS, [-funsigned-char])
		;;
	esac
	APR_SETIFNULL(enable_threads, [no])
        APR_SETIFNULL(apr_lock_method, [USE_FLOCK_SERIALIZE])
	APR_ADDTO(CPPFLAGS, [-D_REENTRANT -D_THREAD_SAFE])
	;;
    *-next-nextstep*)
	APR_SETIFNULL(CFLAGS, [-O])
	APR_ADDTO(CPPFLAGS, [-DNEXT])
	;;
    *-next-openstep*)
	APR_SETIFNULL(CFLAGS, [-O])
	APR_ADDTO(CPPFLAGS, [-DNEXT])
	;;
    *-apple-rhapsody*)
	APR_ADDTO(CPPFLAGS, [-DRHAPSODY])
	;;
    *-apple-darwin*)
	APR_ADDTO(CPPFLAGS, [-DDARWIN -DSIGPROCMASK_SETS_THREAD_MASK -no-cpp-precomp])
	APR_SETIFNULL(apr_posixsem_is_global, [yes])
        APR_SETIFNULL(ac_cv_func_poll, [no]) # See issue 34332
	;;
    *-dec-osf*)
	APR_ADDTO(CPPFLAGS, [-DOSF1])
        # process-shared mutexes don't seem to work in Tru64 5.0
        APR_SETIFNULL(apr_cv_process_shared_works, [no])
	;;
    *-nto-qnx*)
	;;
    *-qnx)
	APR_ADDTO(CPPFLAGS, [-DQNX])
	APR_ADDTO(LIBS, [-N128k -lunix])
	;;
    *-qnx32)
	APR_ADDTO(CPPFLAGS, [-DQNX])
	APR_ADDTO(CFLAGS, [-mf -3])
	APR_ADDTO(LIBS, [-N128k -lunix])
	;;
    *-isc4*)
	APR_ADDTO(CPPFLAGS, [-posix -DISC])
	APR_ADDTO(LDFLAGS, [-posix])
	APR_ADDTO(LIBS, [-linet])
	;;
    *-sco3.2v[[234]]*)
	APR_ADDTO(CPPFLAGS, [-DSCO -D_REENTRANT])
	if test "$GCC" = "no"; then
	    APR_ADDTO(CFLAGS, [-Oacgiltz])
	fi
	APR_ADDTO(LIBS, [-lPW -lmalloc])
	;;
    *-sco3.2v5*)
	APR_ADDTO(CPPFLAGS, [-DSCO5 -D_REENTRANT])
	;;
    *-sco_sv*|*-SCO_SV*)
	APR_ADDTO(CPPFLAGS, [-DSCO -D_REENTRANT])
	APR_ADDTO(LIBS, [-lPW -lmalloc])
	;;
    *-solaris2*)
    	PLATOSVERS=`echo $host | sed 's/^.*solaris2.//'`
	APR_ADDTO(CPPFLAGS, [-DSOLARIS2=$PLATOSVERS -D_POSIX_PTHREAD_SEMANTICS -D_REENTRANT])
        APR_SETIFNULL(apr_lock_method, [USE_FCNTL_SERIALIZE])
	;;
    *-sunos4*)
	APR_ADDTO(CPPFLAGS, [-DSUNOS4])
	;;
    *-unixware1)
	APR_ADDTO(CPPFLAGS, [-DUW=100])
	;;
    *-unixware2)
	APR_ADDTO(CPPFLAGS, [-DUW=200])
	APR_ADDTO(LIBS, [-lgen])
	;;
    *-unixware211)
	APR_ADDTO(CPPFLAGS, [-DUW=211])
	APR_ADDTO(LIBS, [-lgen])
	;;
    *-unixware212)
	APR_ADDTO(CPPFLAGS, [-DUW=212])
	APR_ADDTO(LIBS, [-lgen])
	;;
    *-unixware7)
	APR_ADDTO(CPPFLAGS, [-DUW=700])
	APR_ADDTO(LIBS, [-lgen])
	;;
    maxion-*-sysv4*)
	APR_ADDTO(CPPFLAGS, [-DSVR4])
	APR_ADDTO(LIBS, [-lc -lgen])
	;;
    *-*-powermax*)
	APR_ADDTO(CPPFLAGS, [-DSVR4])
	APR_ADDTO(LIBS, [-lgen])
	;;
    TPF)
       APR_ADDTO(CPPFLAGS, [-DTPF -D_POSIX_SOURCE])
       ;;
    bs2000*-siemens-sysv*)
	APR_SETIFNULL(CFLAGS, [-O])
	APR_ADDTO(CPPFLAGS, [-DSVR4 -D_XPG_IV -D_KMEMUSER])
	APR_ADDTO(LIBS, [-lsocket])
	APR_SETIFNULL(enable_threads, [no])
	;;
    *-siemens-sysv4*)
	APR_ADDTO(CPPFLAGS, [-DSVR4 -D_XPG_IV -DHAS_DLFCN -DUSE_MMAP_FILES -DUSE_SYSVSEM_SERIALIZED_ACCEPT])
	APR_ADDTO(LIBS, [-lc])
	;;
    pyramid-pyramid-svr4)
	APR_ADDTO(CPPFLAGS, [-DSVR4 -DNO_LONG_DOUBLE])
	APR_ADDTO(LIBS, [-lc])
	;;
    DS/90\ 7000-*-sysv4*)
	APR_ADDTO(CPPFLAGS, [-DUXPDS])
	;;
    *-tandem-sysv4*)
	APR_ADDTO(CPPFLAGS, [-DSVR4])
	;;
    *-ncr-sysv4)
	APR_ADDTO(CPPFLAGS, [-DSVR4 -DMPRAS])
	APR_ADDTO(LIBS, [-lc -L/usr/ucblib -lucb])
	;;
    *-sysv4*)
	APR_ADDTO(CPPFLAGS, [-DSVR4])
	APR_ADDTO(LIBS, [-lc])
	;;
    88k-encore-sysv4)
	APR_ADDTO(CPPFLAGS, [-DSVR4 -DENCORE])
	APR_ADDTO(LIBS, [-lPW])
	;;
    *-uts*)
	PLATOSVERS=`echo $host | sed 's/^.*,//'`
	case $PLATOSVERS in
	    2*) APR_ADDTO(CPPFLAGS, [-DUTS21])
	        APR_ADDTO(CFLAGS, [-Xa -eft])
	        APR_ADDTO(LIBS, [-lbsd -la])
	        ;;
	    *)  APR_ADDTO(CPPFLAGS, [-DSVR4])
	        APR_ADDTO(CFLAGS, [-Xa])
	        ;;
	esac
	;;
    *-ultrix)
	APR_ADDTO(CPPFLAGS, [-DULTRIX])
	APR_SETVAR(SHELL, [/bin/sh5])
	;;
    *powerpc-tenon-machten*)
	APR_ADDTO(LDFLAGS, [-Xlstack=0x14000 -Xldelcsect])
	;;
    *-machten*)
	APR_ADDTO(LDFLAGS, [-stack 0x14000])
	;;
    *convex-v11*)
	APR_ADDTO(CPPFLAGS, [-DCONVEXOS11])
	APR_SETIFNULL(CFLAGS, [-O1])
	APR_ADDTO(CFLAGS, [-ext])
	;;
    i860-intel-osf1)
	APR_ADDTO(CPPFLAGS, [-DPARAGON])
	;;
    *-sequent-ptx2.*.*)
	APR_ADDTO(CPPFLAGS, [-DSEQUENT=20])
	APR_ADDTO(CFLAGS, [-Wc,-pw])
	APR_ADDTO(LIBS, [-linet -lc -lseq])
	;;
    *-sequent-ptx4.0.*)
	APR_ADDTO(CPPFLAGS, [-DSEQUENT=40])
	APR_ADDTO(CFLAGS, [-Wc,-pw])
	APR_ADDTO(LIBS, [-linet -lc])
	;;
    *-sequent-ptx4.[[123]].*)
	APR_ADDTO(CPPFLAGS, [-DSEQUENT=41])
	APR_ADDTO(CFLAGS, [-Wc,-pw])
	APR_ADDTO(LIBS, [-lc])
	;;
    *-sequent-ptx4.4.*)
	APR_ADDTO(CPPFLAGS, [-DSEQUENT=44])
	APR_ADDTO(CFLAGS, [-Wc,-pw])
	APR_ADDTO(LIBS, [-lc])
	;;
    *-sequent-ptx4.5.*)
	APR_ADDTO(CPPFLAGS, [-DSEQUENT=45])
	APR_ADDTO(CFLAGS, [-Wc,-pw])
	APR_ADDTO(LIBS, [-lc])
	;;
    *-sequent-ptx5.0.*)
	APR_ADDTO(CPPFLAGS, [-DSEQUENT=50])
	APR_ADDTO(CFLAGS, [-Wc,-pw])
	APR_ADDTO(LIBS, [-lc])
	;;
    *NEWS-OS*)
	APR_ADDTO(CPPFLAGS, [-DNEWSOS])
	;;
    *-riscix)
	APR_ADDTO(CPPFLAGS, [-DRISCIX])
	APR_SETIFNULL(CFLAGS, [-O])
	;;
    *-irix*)
	APR_ADDTO(CPPFLAGS, [-D_POSIX_THREAD_SAFE_FUNCTIONS])
	;;
    *beos*)
        APR_ADDTO(CPPFLAGS, [-DBEOS])
        PLATOSVERS=`uname -r`
        APR_SETIFNULL(apr_process_lock_is_global, [yes])
        case $PLATOSVERS in
            5.0.4)
                APR_ADDTO(LDFLAGS, [-L/boot/beos/system/lib])
                APR_ADDTO(LIBS, [-lbind -lsocket])
                APR_ADDTO(CPPFLAGS,[-DBONE7])
                ;;
            5.1)
                APR_ADDTO(LDFLAGS, [-L/boot/beos/system/lib])
                APR_ADDTO(LIBS, [-lbind -lsocket])
                ;;
	esac
	APR_ADDTO(CPPFLAGS, [-DSIGPROCMASK_SETS_THREAD_MASK])
        ;;
    4850-*.*)
	APR_ADDTO(CPPFLAGS, [-DSVR4 -DMPRAS])
	APR_ADDTO(LIBS, [-lc -L/usr/ucblib -lucb])
	;;
    drs6000*)
	APR_ADDTO(CPPFLAGS, [-DSVR4])
	APR_ADDTO(LIBS, [-lc -L/usr/ucblib -lucb])
	;;
    m88k-*-CX/SX|CYBER)
	APR_ADDTO(CPPFLAGS, [-D_CX_SX])
	APR_ADDTO(CFLAGS, [-Xa])
	;;
    *-tandem-oss)
	APR_ADDTO(CPPFLAGS, [-D_TANDEM_SOURCE -D_XOPEN_SOURCE_EXTENDED=1])
	;;
    *-ibm-os390)
       APR_SETIFNULL(apr_lock_method, [USE_SYSVSEM_SERIALIZE])
       APR_SETIFNULL(apr_sysvsem_is_global, [yes])
       APR_SETIFNULL(apr_gethostbyname_is_thread_safe, [yes])
       APR_SETIFNULL(apr_gethostbyaddr_is_thread_safe, [yes])
       APR_ADDTO(CPPFLAGS, [-U_NO_PROTO -DPTHREAD_ATTR_SETDETACHSTATE_ARG2_ADDR -DPTHREAD_SETS_ERRNO -DPTHREAD_DETACH_ARG1_ADDR -DSIGPROCMASK_SETS_THREAD_MASK -DTCP_NODELAY=1])
       ;;
    *-ibm-as400)
       APR_SETIFNULL(apr_lock_method, [USE_SYSVSEM_SERIALIZE])
       APR_SETIFNULL(apr_process_lock_is_global, [yes])
       APR_SETIFNULL(apr_gethostbyname_is_thread_safe, [yes])
       APR_SETIFNULL(apr_gethostbyaddr_is_thread_safe, [yes])
       ;;
    *cygwin*)
	APR_ADDTO(CPPFLAGS, [-DCYGWIN])
	APR_ADDTO(LIBS, [-lcrypt])
	;;
  esac

fi
])

dnl
dnl APR_CC_HINTS
dnl
dnl  Allows us to provide a default choice of compiler which
dnl  the user can override.
AC_DEFUN(APR_CC_HINTS, [
case "$host" in
  *-apple-aux3*)
      APR_SETIFNULL(CC, [gcc])
      ;;
  bs2000*-siemens-sysv*)
      APR_SETIFNULL(CC, [c89 -XLLML -XLLMK -XL -Kno_integer_overflow])
      ;;
  *convex-v11*)
      APR_SETIFNULL(CC, [cc])
      ;;
  *-ibm-os390)
      APR_SETIFNULL(CC, [cc])
      ;;
  *-ibm-as400)
      APR_SETIFNULL(CC, [icc])
      ;;
  *-isc4*)
      APR_SETIFNULL(CC, [gcc])
      ;;
  m88k-*-CX/SX|CYBER)
      APR_SETIFNULL(CC, [cc])
      ;;
  *-next-openstep*)
      APR_SETIFNULL(CC, [cc])
      ;;
  *-qnx32)
      APR_SETIFNULL(CC, [cc -F])
      ;;
  *-tandem-oss)
      APR_SETIFNULL(CC, [c89])
      ;;
  TPF)
      APR_SETIFNULL(CC, [c89])
      ;;
esac
])