dnl -----------------------------------------------------------------dnl apu-hints.m4: apr-util's autoconf macros for platform-specific hintsdnldnl  We preload various configure settings dependingdnl  on previously obtained platform knowledge.dnl  We allow all settings to be overridden fromdnl  the command-line.dnldnl APU_PRELOADdnldnl  Preload various build parameters based on outside knowledge.dnlAC_DEFUN(APU_PRELOAD, [if test "x$apu_preload_done" != "xyes" ; then    apu_preload_done="yes"    echo "Applying apr-util hints file rules for $host"    case "$host" in    *-dec-osf*)        APR_SETIFNULL(apu_crypt_threadsafe, [1])        ;;    *-hp-hpux11.*)        APR_SETIFNULL(apu_crypt_threadsafe, [1])        ;;    *-ibm-aix4*|*-ibm-aix5.1*)        APR_SETIFNULL(apu_iconv_inbuf_const, [1])        ;;    *-ibm-os390)        APR_SETIFNULL(apu_crypt_threadsafe, [1])        ;;    *-solaris2*)        APR_SETIFNULL(apu_iconv_inbuf_const, [1])        APR_SETIFNULL(apu_crypt_threadsafe, [1])        ;;    *-sco3.2v5*)	APR_SETIFNULL(apu_db_xtra_libs, [-lsocket])	;;    esacfi])