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makedefs revision 1.11
      1 #!/bin/sh
      2 
      3 #++
      4 # NAME
      5 #	makedefs 1
      6 # SUMMARY
      7 #	makefile configuration utility
      8 # SYNOPSIS
      9 #	\fBmake makefiles \fIname=value...\fR
     10 # DESCRIPTION
     11 #	The \fBmakedefs\fR command identifies the compilation
     12 #	environment, and emits macro definitions on the standard output
     13 #	stream that can be prepended to template Makefiles.
     14 #
     15 #	Default settings can be overruled by specifying them as
     16 #	environment variables. Use quotes if variables contain
     17 #	whitespace or shell meta characters.
     18 # .IP \fBAUXLIBS=\fIobject_library...\fR
     19 #	Specifies one or more non-default object libraries.
     20 # .IP \fBCC=\fIcompiler_command\fR
     21 #	Specifies a non-default compiler. On many systems, the default
     22 #	is \fBgcc\fR.
     23 # .IP \fBCCARGS=\fIcompiler_arguments\fR
     24 #	Specifies non-default compiler arguments, for example, a non-default
     25 #	\fIinclude\fR directory.
     26 #	The following directives are special:
     27 # .RS
     28 # .IP \fB-DNO_DB\fR
     29 #	Do not build with Berkeley DB support.
     30 # .IP \fB-DNO_DEVPOLL\fR
     31 #	Do not build with Solaris /dev/poll support.
     32 #	By default, /dev/poll support is compiled in on platforms that
     33 #	are known to support it.
     34 # .IP \fB-DNO_EPOLL\fR
     35 #	Do not build with Linux EPOLL support.
     36 #	By default, EPOLL support is compiled in on platforms that
     37 #	are known to support it.
     38 # .IP \fB-DNO_IPV6\fR
     39 #	Do not build with IPv6 support.
     40 #	By default, IPv6 support is compiled in on platforms that
     41 #	are known to have IPv6 support.
     42 #
     43 #	Note: this directive is for debugging and testing only. It
     44 #	is not guaranteed to work on all platforms.
     45 # .IP \fB-DNO_KQUEUE\fR
     46 #	Do not build with FreeBSD/NetBSD/OpenBSD/MacOSX KQUEUE support.
     47 #	By default, KQUEUE support is compiled in on platforms that
     48 #	are known to support it.
     49 # .IP \fB-DNO_NIS\fR
     50 #	Do not build with NIS or NISPLUS support. Support for NIS
     51 #	is unavailable on some recent Linux distributions.
     52 # .IP \fB-DNO_NISPLUS\fR
     53 #	Do not build with NISPLUS support. Support for NISPLUS
     54 #	is unavailable on some recent Solaris distributions.
     55 # .IP \fB-DNO_PCRE\fR
     56 #	Do not build with PCRE support.
     57 #	By default, PCRE support is compiled in when the \fBpcre-config\fR
     58 #	utility is installed.
     59 # .IP \fB-DNO_POSIX_GETPW_R\fR
     60 #	Disable support for POSIX getpwnam_r/getpwuid_r.
     61 # .IP \fB-DNO_SIGSETJMP\fR
     62 #	Use setjmp()/longjmp() instead of sigsetjmp()/siglongjmp().
     63 #	By default, Postfix uses sigsetjmp()/siglongjmp() when they
     64 #	appear to work.
     65 # .RE
     66 # .IP \fBDEBUG=\fIdebug_level\fR
     67 #	Specifies a non-default debugging level. The default is \fB-g\fR.
     68 #	Specify \fBDEBUG=\fR to turn off debugging.
     69 # .IP \fBOPT=\fIoptimization_level\fR
     70 #	Specifies a non-default optimization level. The default is \fB-O\fR.
     71 #	Specify \fBOPT=\fR to turn off optimization.
     72 # .IP \fBWARN=\fIwarning_flags\fR
     73 #	Specifies non-default gcc compiler warning options for use when
     74 #	"make" is invoked in a source subdirectory only.
     75 # LICENSE
     76 # .ad
     77 # .fi
     78 #	The Secure Mailer license must be distributed with this software.
     79 # AUTHOR(S)
     80 #	Wietse Venema
     81 #	IBM T.J. Watson Research
     82 #	P.O. Box 704
     83 #	Yorktown Heights, NY 10598, USA
     84 #--
     85 
     86 # Emit system-dependent Makefile macro definitions to standard output.
     87 
     88 # Defaults for most sane systems
     89 
     90 RANLIB=ranlib
     91 SYSLIBS=
     92 AR=ar
     93 ARFL=rv
     94 
     95 # Ugly function to make our error message more visible among the
     96 # garbage that is output by some versions of make(1).
     97 
     98 # By now all shells must have functions.
     99 
    100 error() {
    101    # Alas, tput(1) is not portable so we can't use visual effects.
    102    echo "ATTENTION:" 1>&2;
    103    echo "ATTENTION:" $* 1>&2;
    104    echo "ATTENTION:" 1>&2;
    105    exit 1
    106 }
    107 
    108 case $# in
    109  # Officially supported usage.
    110  0) SYSTEM=`(uname -s) 2>/dev/null`
    111     RELEASE=`(uname -r) 2>/dev/null`
    112     # No ${x%%y} support in Solaris 11 /bin/sh
    113     RELEASE_MAJOR=`expr "$RELEASE" : '\([0-9]*\)'` || exit 1
    114     VERSION=`(uname -v) 2>/dev/null`
    115     case "$VERSION" in
    116      dcosx*) SYSTEM=$VERSION;;
    117     esac;;
    118  # Unsupported debug-only mode. Not suitable for cross-platform tests.
    119  2) SYSTEM="$1"; RELEASE="$2";;
    120  *) echo usage: $0 [system release] 1>&2; exit 1;;
    121 esac
    122 
    123 case "$SYSTEM.$RELEASE" in
    124    SCO_SV.3.2)	SYSTYPE=SCO5
    125 		# Use the native compiler by default
    126 		: ${CC="/usr/bin/cc -b elf"}
    127 		CCARGS="$CCARGS -DPIPES_CANT_FIONREAD $CCARGS"
    128 		SYSLIBS="-lsocket -ldbm"
    129 		RANLIB=echo
    130 		;;
    131   UnixWare.5*)	SYSTYPE=UW7
    132 		# Use the native compiler by default
    133 		: ${CC=/usr/bin/cc}
    134 		RANLIB=echo
    135 		SYSLIBS="-lresolv -lsocket -lnsl"
    136 		;;
    137   UNIX_SV.4.2*)	case "`uname -v`" in
    138 	      2.1*) SYSTYPE=UW21
    139 		    # Use the native compiler by default
    140 		    : ${CC=/usr/bin/cc}
    141 		    RANLIB=echo
    142 		    SYSLIBS="-lresolv -lsocket -lnsl -lc -L/usr/ucblib -lucb"
    143 		    ;;
    144 	      *) error "Seems to be UnixWare`uname -v`. Untested.";;
    145 		esac
    146 		;;
    147   FreeBSD.2*)	SYSTYPE=FREEBSD2
    148 		;;
    149   FreeBSD.3*)	SYSTYPE=FREEBSD3
    150 		;;
    151   FreeBSD.4*)	SYSTYPE=FREEBSD4
    152 		;;
    153   FreeBSD.5*)	SYSTYPE=FREEBSD5
    154 		;;
    155   FreeBSD.6*)	SYSTYPE=FREEBSD6
    156 		;;
    157   FreeBSD.7*)	SYSTYPE=FREEBSD7
    158 		;;
    159   FreeBSD.8*)	SYSTYPE=FREEBSD8
    160 		;;
    161   FreeBSD.9*)	SYSTYPE=FREEBSD9
    162 		;;
    163   FreeBSD.10*)	SYSTYPE=FREEBSD10
    164 		: ${CC=cc}
    165 		;;
    166  DragonFly.*)	SYSTYPE=DRAGONFLY
    167 		;;
    168   OpenBSD.2*)	SYSTYPE=OPENBSD2
    169 		;;
    170   OpenBSD.3*)	SYSTYPE=OPENBSD3
    171 		;;
    172   OpenBSD.4*)	SYSTYPE=OPENBSD4
    173 		;;
    174   OpenBSD.5*)	SYSTYPE=OPENBSD5
    175 		;;
    176   ekkoBSD.1*)	SYSTYPE=EKKOBSD1
    177 		;;
    178    NetBSD.1*)	SYSTYPE=NETBSD1
    179 		;;
    180    NetBSD.2*)	SYSTYPE=NETBSD2
    181 		;;
    182    NetBSD.3*)	SYSTYPE=NETBSD3
    183 		;;
    184    NetBSD.4*)	SYSTYPE=NETBSD4
    185 		;;
    186    NetBSD.5*)	SYSTYPE=NETBSD5
    187 		;;
    188    NetBSD.6*)	SYSTYPE=NETBSD6
    189 		;;
    190    BSD/OS.2*)	SYSTYPE=BSDI2
    191 		;;
    192    BSD/OS.3*)	SYSTYPE=BSDI3
    193 		;;
    194    BSD/OS.4*)	SYSTYPE=BSDI4
    195 		;;
    196  OSF1.V[3-5].*)	SYSTYPE=OSF1
    197 		# Use the native compiler by default
    198 		: ${CC=cc}
    199 		: ${DEBUG="-g3"}
    200 		case $RELEASE in
    201 		V[0-4].*) CCARGS="$CCARGS -DNO_IPV6";;
    202 		esac
    203 		;;
    204     SunOS.4*)	SYSTYPE=SUNOS4
    205 		SYSLIBS=-lresolv
    206 		;;
    207     SunOS.5*)	SYSTYPE=SUNOS5
    208 		RANLIB=echo
    209 		SYSLIBS="-lresolv -lsocket -lnsl -ldl"
    210 		# Stock awk breaks with >10 files.
    211 		test -x /usr/xpg4/bin/awk && AWK=/usr/xpg4/bin/awk
    212 		# Solaris 2.5 added usleep(), POSIX regexp, POSIX getpwnam/uid_r
    213 		case $RELEASE in
    214 		    5.[0-4]) CCARGS="$CCARGS -DMISSING_USLEEP -DNO_POSIX_REGEXP -DNO_POSIX_GETPW_R";;
    215 		esac
    216 		# Solaris 8 added IPv6 and /dev/poll
    217 		case $RELEASE in
    218 		    5.[0-7]|5.[0-7].*) CCARGS="$CCARGS -DNO_IPV6 -DNO_DEVPOLL";;
    219 		esac
    220 		# Solaris 9 added closefrom(), futimesat() and /dev/*random
    221 		# and appears to have solid UNIX-domain sockets.
    222 		case $RELEASE in
    223 		    5.[0-8]|5.[0-8].*) CCARGS="$CCARGS -DNO_CLOSEFROM -DNO_DEV_URANDOM -DNO_FUTIMESAT -DSTREAM_CONNECTIONS";;
    224 		esac
    225 		# Somewhere NISPLUS went away.
    226 		case $RELEASE in
    227 		    5.[0-9][0-9]*) CCARGS="$CCARGS -DNO_NISPLUS";;
    228 		esac
    229 		# Work around broken str*casecmp(). Do it all here instead
    230 		# of having half the solution in the sys_defs.h file.
    231 		CCARGS="$CCARGS -Dstrcasecmp=fix_strcasecmp \
    232 		    -Dstrncasecmp=fix_strncasecmp"
    233 		STRCASE="strcasecmp.o"
    234 		# Avoid common types of braindamage
    235 		case "$LD_LIBRARY_PATH" in
    236 		?*) error "Don't set LD_LIBRARY_PATH";;
    237 		esac
    238 		case "${CC}" in
    239 		*" "*) ;;
    240 		*ucb*) error "Don't use /usr/ucb/cc or ucblib";;
    241 		  cc*) case `which ${CC}` in
    242 		*ucb*) error "Don't use /usr/ucb/cc or ucblib";;
    243 		  esac;;
    244 		esac
    245 		;;
    246    ULTRIX.4*)	SYSTYPE=ULTRIX4
    247 		if [ -f /usr/local/lib/libdb.a ]; then
    248 		    SYSLIBS="$SYSLIBS -ldb"
    249 		    CCARGS="$CCARGS -DHAS_DB"
    250 		    if [ -d /usr/local/include/db ]; then
    251 			CCARGS="$CCARGS -I/usr/local/include/db"
    252 		    fi
    253 		fi
    254 		for l in syslog resolv; do
    255 		    if [ -f /usr/local/lib/lib$l.a ]; then
    256 			SYSLIBS="$SYSLIBS -l$l"
    257 		    fi
    258 		done
    259 		;;
    260        AIX.*)	case "`uname -v`" in
    261 		6)	SYSTYPE=AIX6
    262 			case "$CC" in
    263 			cc|*/cc|xlc|*/xlc) CCARGS="$CCARGS -w -blibpath:/usr/lib:/lib:/usr/local/lib";;
    264 			esac
    265 			CCARGS="$CCARGS -D_ALL_SOURCE -DHAS_POSIX_REGEXP"
    266 			;;
    267 		5)	SYSTYPE=AIX5
    268 			case "$CC" in
    269 			cc|*/cc|xlc|*/xlc) CCARGS="$CCARGS -w -blibpath:/usr/lib:/lib:/usr/local/lib";;
    270 			esac
    271 			CCARGS="$CCARGS -D_ALL_SOURCE -DHAS_POSIX_REGEXP"
    272 			;;
    273 		4)	SYSTYPE=AIX4
    274 			# How embarrassing...
    275 			case "$CC" in
    276 			cc|*/cc|xlc|*/xlc) OPT=; CCARGS="$CCARGS -w -blibpath:/usr/lib:/lib:/usr/local/lib";;
    277 			esac
    278 			CCARGS="$CCARGS -D_ALL_SOURCE -DHAS_POSIX_REGEXP"
    279 			;;
    280 		3)	SYSTYPE=AIX3
    281 			# How embarrassing...
    282 			case "$CC" in
    283 			cc|*/cc|xlc|*/xlc) OPT=; CCARGS="$CCARGS -w";;
    284 			esac
    285 			CCARGS="$CCARGS -D_ALL_SOURCE"
    286 			;;
    287 		*)	error "Unknown AIX version: `uname -v`.";;
    288 		esac;;
    289 		# Tested with RedHat 3.03 on 20020729.
    290     Linux.1*)	SYSTYPE=LINUX1
    291 		case "$CCARGS" in
    292 		 *-DNO_DB*) ;;
    293 		 *-DHAS_DB*) ;;
    294 		 *) SYSLIBS="-ldb";;
    295 		esac
    296 		;;
    297     Linux.2*)	SYSTYPE=LINUX2
    298 		case "$CCARGS" in
    299 		 *-DNO_DB*) ;;
    300 		 *-DHAS_DB*) ;;
    301 		 *) if [ -f /usr/include/db.h ]
    302 		    then
    303 			: we are all set
    304 		    elif [ -f /usr/include/db/db.h ]
    305 		    then
    306 			CCARGS="$CCARGS -I/usr/include/db"
    307 		    else
    308 			# No, we're not going to try db1 db2 db3 etc.
    309 			# On a properly installed system, Postfix builds
    310 			# by including <db.h> and by linking with -ldb
    311 			echo "No <db.h> include file found." 1>&2
    312 			echo "Install the appropriate db*-devel package first." 1>&2
    313 			exit 1
    314 		    fi
    315 		    SYSLIBS="-ldb"
    316 		    ;;
    317 		esac
    318 		for name in nsl resolv $GDBM_LIBS
    319 		do
    320 		    for lib in /usr/lib64 /lib64 /usr/lib /lib
    321 		    do
    322 			test -e $lib/lib$name.a -o -e $lib/lib$name.so && {
    323 			    SYSLIBS="$SYSLIBS -l$name"
    324 			    break
    325 			}
    326 		    done
    327 		done
    328 		# Kernel 2.4 added IPv6
    329 		case "$RELEASE" in
    330 		2.[0-3].*) CCARGS="$CCARGS -DNO_IPV6";;
    331 		esac
    332 		# Kernel 2.6 added EPOLL
    333 		case "$RELEASE" in
    334 		2.[0-5].*) CCARGS="$CCARGS -DNO_EPOLL";;
    335 		    # Workaround for retarded libc 
    336 		    2.6.*)
    337 		       if [ `expr "X$CCARGS" : "X.*-DNO_EPOLL"` -gt 0 ]
    338 		       then
    339 			   :
    340 		       elif [ ! -e /usr/include/sys/epoll.h ]
    341 		       then
    342 			   echo CCARGS="$CCARGS -DNO_EPOLL"
    343 		       else
    344 			   trap 'rm -f makedefs.test makedefs.test.[co]' 1 2 3 15
    345 			   cat >makedefs.test.c <<'EOF'
    346 #include <sys/types.h>
    347 #include <sys/epoll.h>
    348 #include <errno.h>
    349 #include <stdio.h>
    350 #include <stdlib.h>
    351 
    352 int     main(int argc, char **argv)
    353 {
    354     int     epoll_handle;
    355 
    356     if ((epoll_handle = epoll_create(1)) < 0) {
    357 	perror("epoll_create");
    358 	exit(1);
    359     }
    360     exit(0);
    361 }
    362 EOF
    363 			   ${CC-gcc} -o makedefs.test makedefs.test.c || exit 1
    364 			   ./makedefs.test 2>/dev/null ||
    365 				CCARGS="$CCARGS -DNO_EPOLL"
    366 			   rm -f makedefs.test makedefs.test.[co]
    367 		       fi;;
    368 		esac
    369 		;;
    370   Linux.[34].*)	SYSTYPE=LINUX$RELEASE_MAJOR
    371 		case "$CCARGS" in
    372 		 *-DNO_DB*) ;;
    373 		 *-DHAS_DB*) ;;
    374 		 *) if [ -f /usr/include/db.h ]
    375 		    then
    376 			: we are all set
    377 		    elif [ -f /usr/include/db/db.h ]
    378 		    then
    379 			CCARGS="$CCARGS -I/usr/include/db"
    380 		    else
    381 			# On a properly installed system, Postfix builds
    382 			# by including <db.h> and by linking with -ldb
    383 			echo "No <db.h> include file found." 1>&2
    384 			echo "Install the appropriate db*-devel package first." 1>&2
    385 			exit 1
    386 		    fi
    387 		    SYSLIBS="-ldb"
    388 		    ;;
    389 		esac
    390 		for name in nsl resolv
    391 		do
    392 		    for lib in /usr/lib64 /lib64 /usr/lib /usr/lib/* /lib /lib/*
    393 		    do
    394 			test -e $lib/lib$name.a -o -e $lib/lib$name.so && {
    395 			    SYSLIBS="$SYSLIBS -l$name"
    396 			    break
    397 			}
    398 		    done
    399 		done
    400 		;;
    401      GNU.0*|GNU/kFreeBSD.[567]*)
    402 		SYSTYPE=GNU0
    403 		case "$CCARGS" in
    404 		 *-DNO_DB*) ;;
    405 		 *) if [ -f /usr/include/db.h ]
    406 		    then
    407 			: we are all set
    408 		    elif [ -f /usr/include/db/db.h ]
    409 		    then
    410 			CCARGS="$CCARGS -I/usr/include/db"
    411 		    else
    412 			# On a properly installed system, Postfix builds
    413 			# by including <db.h> and by linking with -ldb
    414 			echo "No <db.h> include file found." 1>&2
    415 			echo "Install the appropriate db*-devel package first." 1>&2
    416 			exit 1
    417 		    fi
    418 		    SYSLIBS="-ldb"
    419 		    ;;
    420 		esac
    421 		for name in nsl resolv
    422 		do
    423 		    for lib in /usr/lib64 /lib64 /usr/lib /lib
    424 		    do
    425 			test -e $lib/lib$name.a -o -e $lib/lib$name.so && {
    426 			    SYSLIBS="$SYSLIBS -l$name"
    427 			    break
    428 			}
    429 		    done
    430 		done
    431 		case "`uname -s`" in
    432 		GNU)
    433 			# currently no IPv6 support on Hurd
    434 			CCARGS="$CCARGS -DNO_IPV6"
    435 			;;
    436 		esac
    437 		;;
    438      IRIX*.5.*)	SYSTYPE=IRIX5
    439 		# Use the native compiler by default
    440 		: ${CC=cc} ${DEBUG="-g3"}
    441 		RANLIB=echo
    442 		;;
    443      IRIX*.6.*)	SYSTYPE=IRIX6
    444 		# Use the native compiler by default, and allow nested comments.
    445 		: ${CC="cc -woff 1009,1116,1412"}
    446 		RANLIB=echo
    447 		;;
    448 HP-UX.A.09.*)	SYSTYPE=HPUX9
    449 		SYSLIBS=-ldbm
    450 		CCARGS="$CCARGS -DMISSING_USLEEP"
    451 		if [ -f /usr/lib/libdb.a ]; then
    452 		    CCARGS="$CCARGS -DHAS_DB"
    453 		    SYSLIBS="$SYSLIBS -ldb"
    454 		fi
    455 		;;
    456 HP-UX.B.10.*)	SYSTYPE=HPUX10
    457 		CCARGS="$CCARGS `nm /usr/lib/libc.a 2>/dev/null |
    458 		    (grep usleep >/dev/null || echo '-DMISSING_USLEEP')`"
    459 		if [ -f /usr/lib/libdb.a ]; then
    460 		    CCARGS="$CCARGS -DHAS_DB"
    461 		    SYSLIBS=-ldb
    462 		fi
    463 		;;
    464 HP-UX.B.11.*)	SYSTYPE=HPUX11
    465 		SYSLIBS=-lnsl
    466 		if [ -f /usr/lib/libdb.a ]; then
    467 		    CCARGS="$CCARGS -DHAS_DB"
    468 		    SYSLIBS="$SYSLIBS -ldb"
    469 		fi
    470 		;;
    471 ReliantUNIX-?.5.43) SYSTYPE=ReliantUnix543
    472 		RANLIB=echo
    473 		SYSLIBS="-lresolv -lsocket -lnsl"
    474 		;;
    475     Darwin.*)   SYSTYPE=MACOSX
    476 		# Use the native compiler by default
    477 		: ${CC=cc}
    478 		# Darwin > 1.3 uses awk and flat_namespace
    479 		case $RELEASE in
    480 		 1.[0-3]) AWK=gawk;;
    481 		       *) AWK=awk
    482 			  SYSLIBS="$SYSLIBS -flat_namespace";;
    483 		esac
    484 		# Darwin 7 adds IPv6 support, BIND_8_COMPAT, NO_NETINFO
    485 		case $RELEASE in
    486 		 [1-6].*) CCARGS="$CCARGS -DNO_IPV6";;
    487 		       *) CCARGS="$CCARGS -DBIND_8_COMPAT -DNO_NETINFO";;
    488 		esac
    489 		# Darwin 9.0 (MacOS X 10.5) adds POSIX getpwnam_r/getpwuid_r
    490 		case $RELEASE in
    491 		 [1-8].*) CCARGS="$CCARGS -DNO_POSIX_GETPW_R";;
    492 		esac
    493 		# Darwin 10.3.0 no longer has <nameser8_compat.h>.
    494 		case $RELEASE in
    495 		     ?.*) CCARGS="$CCARGS -DRESOLVE_H_NEEDS_NAMESER8_COMPAT_H";;
    496 		       *) CCARGS="$CCARGS -DRESOLVE_H_NEEDS_ARPA_NAMESER_COMPAT_H";;
    497 		esac
    498 		# Darwin 11.x (MacOS X 10.7.x), maybe earlier, needs libresolv.
    499 		case $RELEASE in
    500 		?.*|10.*) ;;
    501 		       *) SYSLIBS="$SYSLIBS -lresolv";;
    502 		esac
    503 		# kqueue and/or poll are broken in MacOS X 10.5 (Darwin 9).
    504 		# kqueue works in Mac OS X 10.8 (Darwin 12).
    505 		case $RELEASE in
    506 	    ?.*|1[0-1].*) CCARGS="$CCARGS -DNO_KQUEUE";;
    507 		esac
    508 		;;
    509     dcosx.1*)	SYSTYPE=DCOSX1
    510 		RANLIB=echo
    511 		SYSLIBS="-lresolv -lsocket -lnsl -lc -lrpcsvc -L/usr/ucblib -lucb"
    512 		;;
    513 
    514 	 ".")	if [ -d /NextApps ]; then
    515 		    SYSTYPE=`hostinfo | sed -n \
    516 			's/^.*NeXT Mach 3.*$/NEXTSTEP3/;/NEXTSTEP3/{p;q;}'`
    517 		    if [ "$SYSTYPE" = "" ]; then
    518 			SYSTYPE=`hostinfo | sed -n \
    519 			    's/^.*NeXT Mach 4.*$/OPENSTEP4/;/OPENSTEP4/{p;q;}'`
    520 		    fi
    521 		    : ${CC=cc}
    522 		    RANLIB="sleep 5; ranlib"
    523 		else
    524 		    error "Unable to determine your system type."
    525 		fi
    526 		;;
    527 	   *)	error "Unknown system type: $SYSTEM $RELEASE";;
    528 esac
    529 
    530 #
    531 # sigsetjmp()/siglongjmp() can be "better" than setjmp()/longjmp()
    532 # if used wisely (that is: almost never, just like signals).
    533 # Unfortunately some implementations have been buggy in the past.
    534 #
    535 case "$CCARGS" in
    536  *-DNO_SIGSETJMP*) ;;
    537 		*) trap 'rm -f makedefs.test makedefs.test.[co]' 1 2 3 15
    538 		   cat >makedefs.test.c <<'EOF'
    539 #include <setjmp.h>
    540 #include <stdlib.h>
    541 #include <stdio.h>
    542 
    543 static int count = 0;
    544 
    545 int     main(int argc, char **argv)
    546 {
    547     sigjmp_buf env;
    548     int     retval;
    549 
    550     switch (retval = sigsetjmp(env, 1)) {
    551     case 0:
    552 	siglongjmp(env, 12345);
    553     case 12345:
    554 	break;
    555     default:
    556 	fprintf(stderr, "Error: siglongjmp ignores second argument\n");
    557 	exit(1);
    558     }
    559 
    560     switch (retval = sigsetjmp(env, 1)) {
    561     case 0:
    562 	if (count++ > 0) {
    563 	    fprintf(stderr, "Error: not overriding siglongjmp(env, 0)\n");
    564 	    exit(1);
    565 	}
    566 	siglongjmp(env, 0);
    567     case 1:
    568 	break;
    569     default:
    570 	fprintf(stderr, "Error: overriding siglongjmp(env, 0) with %d\n",
    571 		retval);
    572 	exit(1);
    573     }
    574     exit(0);
    575 }
    576 EOF
    577 		   ${CC-gcc} -o makedefs.test makedefs.test.c || exit 1
    578 		   ./makedefs.test 2>/dev/null ||
    579 			CCARGS="$CCARGS -DNO_SIGSETJMP"
    580 		   rm -f makedefs.test makedefs.test.[co]
    581 esac
    582 
    583 #
    584 # OpenSSL has no configuration query utility, but we don't try to
    585 # guess. We assume includes in /usr/include/openssl and libraries in
    586 # /usr/lib, or in their /usr/local equivalents. If the OpenSSL files
    587 # are in a non-standard place, their locations need to be specified.
    588 #
    589 #case "$CCARGS" in
    590 # *-DUSE_TLS*)	;;
    591 #  *-DNO_TLS*)	;;
    592 #           *)	CCARGS="$CCARGS -DUSE_TLS"
    593 #		AUXLIBS="$AUXLIBS -lssl -lcrypto"
    594 #		;;
    595 #esac
    596 
    597 #
    598 # PCRE 3.x has a pcre-config utility so we don't have to guess.
    599 #
    600 case "$CCARGS" in
    601 *-DHAS_PCRE*)	;;
    602  *-DNO_PCRE*)	;;
    603 	   *)	pcre_cflags=`(pcre-config --cflags) 2>/dev/null` &&
    604 		    pcre_libs=`(pcre-config --libs) 2>/dev/null` && {
    605 			CCARGS="$CCARGS -DHAS_PCRE $pcre_cflags"
    606 			AUXLIBS="$AUXLIBS $pcre_libs"
    607 		}
    608 		;;
    609 esac
    610 
    611 # Defaults that can be overruled (make makefiles CC=cc OPT=-O6 DEBUG=)
    612 # Disable optimizations by default when compiling for Purify. Disable
    613 # optimizations by default with gcc 2.8, until the compiler is known to
    614 # be OK. Those who dare can still overrule this (make makefiles OPT=-O).
    615 
    616 case "$CC" in
    617  *purify*) : ${OPT=};;
    618 */gcc|gcc) case `$CC -v` in
    619 	   "gcc version 2.8"*) : ${OPT=};;
    620 	   esac;;
    621       *CC) error "Don't use CC. That's the C++ compiler";;
    622 	*) : ${OPT='-O'};;
    623 esac
    624 #
    625 # "gcc -W" 3.4.2 no longer reports functions that fail to return a
    626 # result.  Use "gcc -Wall -Wno-comment" instead. We'll figure out
    627 # later if the other -Wmumble options are really redundant. Having
    628 # een burned once by a compiler that lies about what warnings it
    629 # produces, not taking that chance again.
    630 
    631 : ${CC=gcc} ${OPT='-O'} ${DEBUG='-g'} ${AWK=awk} \
    632 ${WARN='-Wall -Wno-comment -Wformat -Wimplicit -Wmissing-prototypes \
    633 	-Wparentheses -Wstrict-prototypes -Wswitch -Wuninitialized \
    634 	-Wunused -Wno-missing-braces'}
    635 
    636 export SYSTYPE AR ARFL RANLIB SYSLIBS CC OPT DEBUG AWK OPTS
    637 
    638 # Snapshot only.
    639 #CCARGS="$CCARGS -DSNAPSHOT"
    640 
    641 # Non-production: needs thorough testing, or major changes are still
    642 # needed before the code stabilizes.
    643 #CCARGS="$CCARGS -DNONPROD"
    644 
    645 # Workaround: prepend Postfix include files before other include files.
    646 CCARGS="-I. -I../../include $CCARGS"
    647 
    648 sed 's/  / /g' <<EOF
    649 SYSTYPE	= $SYSTYPE
    650 AR	= $AR
    651 ARFL	= $ARFL
    652 RANLIB	= $RANLIB
    653 SYSLIBS	= $AUXLIBS $SYSLIBS
    654 CC	= $CC $CCARGS \$(WARN)
    655 OPT	= $OPT
    656 DEBUG	= $DEBUG
    657 AWK	= $AWK
    658 STRCASE = $STRCASE
    659 EXPORT	= AUXLIBS='$AUXLIBS' CCARGS='$CCARGS' OPT='$OPT' DEBUG='$DEBUG'
    660 WARN	= $WARN
    661 EOF
    662