$!
$!  SSL-LIB.COM
$!  Written By:  Robert Byer
$!               Vice-President
$!               A-Com Computing, Inc.
$!               byer@mail.all-net.net
$!
$!  Changes by Richard Levitte <richard@levitte.org>
$!
$!  This command file compiles and creates the "[.xxx.EXE.SSL]LIBSSL.OLB" 
$!  library for OpenSSL.  The "xxx" denotes the machine architecture of
$!  ALPHA, IA64 or VAX.
$!
$!  It is written to detect what type of machine you are compiling on
$!  (i.e. ALPHA or VAX) and which "C" compiler you have (i.e. VAXC, DECC 
$!  or GNU C) or you can specify which compiler to use.
$!
$!  Specify the following as P1 to build just that part or ALL to just
$!  build everything.
$!
$!    		LIBRARY    To just compile the [.xxx.EXE.SSL]LIBSSL.OLB Library.
$!    		SSL_TASK   To just compile the [.xxx.EXE.SSL]SSL_TASK.EXE
$!
$!  Specify DEBUG or NODEBUG as P2 to compile with or without debugger
$!  information.
$!
$!  Specify which compiler at P3 to try to compile under.
$!
$!	   VAXC	 For VAX C.
$!	   DECC	 For DEC C.
$!	   GNUC	 For GNU C.
$!
$!  If you don't specify a compiler, it will try to determine which
$!  "C" compiler to use.
$!
$!  P4, if defined, sets a TCP/IP library to use, through one of the following
$!  keywords:
$!
$!	UCX		for UCX
$!	TCPIP		for TCPIP (post UCX)
$!	SOCKETSHR	for SOCKETSHR+NETLIB
$!
$!  P5, if defined, sets a compiler thread NOT needed on OpenVMS 7.1 (and up)
$!
$!  P6, if defined, specifies the C pointer size.  Ignored on VAX.
$!      Supported values are:
$!
$!      ""      Compile with default (/NOPOINTER_SIZE)
$!      32      Compile with /POINTER_SIZE=32 (SHORT)
$!      64      Compile with /POINTER_SIZE=64[=ARGV] (LONG[=ARGV])
$!
$!  P7, if defined, specifies a directory where ZLIB files (zlib.h,
$!  libz.olb) may be found.  Optionally, a non-default object library
$!  name may be included ("dev:[dir]libz_64.olb", for example).
$!
$!
$! Announce/identify.
$!
$ proc = f$environment( "procedure")
$ write sys$output "@@@ "+ -
   f$parse( proc, , , "name")+ f$parse( proc, , , "type")
$!
$! Define A TCP/IP Library That We Will Need To Link To.
$! (That Is, If We Need To Link To One.)
$!
$ TCPIP_LIB = ""
$ ZLIB_LIB = ""
$!
$! Check What Architecture We Are Using.
$!
$ IF (F$GETSYI("CPU").LT.128)
$ THEN
$!
$!  The Architecture Is VAX.
$!
$   ARCH = "VAX"
$!
$! Else...
$!
$ ELSE
$!
$!  The Architecture Is Alpha, IA64 or whatever comes in the future.
$!
$   ARCH = F$EDIT( F$GETSYI( "ARCH_NAME"), "UPCASE")
$   IF (ARCH .EQS. "") THEN ARCH = "UNK"
$!
$! End The Architecture Check.
$!
$ ENDIF
$!
$ ARCHD = ARCH
$ LIB32 = "32"
$ OPT_FILE = ""
$ POINTER_SIZE = ""
$!
$! Check To Make Sure We Have Valid Command Line Parameters.
$!
$ GOSUB CHECK_OPTIONS
$!
$! Define The OBJ and EXE Directories.
$!
$ OBJ_DIR := SYS$DISK:[-.'ARCHD'.OBJ.SSL]
$ EXE_DIR := SYS$DISK:[-.'ARCHD'.EXE.SSL]
$!
$! Specify the destination directory in any /MAP option.
$!
$ if (LINKMAP .eqs. "MAP")
$ then
$   LINKMAP = LINKMAP+ "=''EXE_DIR'"
$ endif
$!
$! Add the location prefix to the linker options file name.
$!
$ if (OPT_FILE .nes. "")
$ then
$   OPT_FILE = EXE_DIR+ OPT_FILE
$ endif
$!
$! Initialise logical names and such
$!
$ GOSUB INITIALISE
$!
$! Tell The User What Kind of Machine We Run On.
$!
$ WRITE SYS$OUTPUT "Host system architecture: ''ARCHD'"
$!
$! Check To See If The Architecture Specific OBJ Directory Exists.
$!
$ IF (F$PARSE(OBJ_DIR).EQS."")
$ THEN
$!
$!  It Dosen't Exist, So Create It.
$!
$   CREATE/DIR 'OBJ_DIR'
$!
$! End The Architecture Specific OBJ Directory Check.
$!
$ ENDIF
$!
$! Check To See If The Architecture Specific Directory Exists.
$!
$ IF (F$PARSE(EXE_DIR).EQS."")
$ THEN
$!
$!  It Dosen't Exist, So Create It.
$!
$   CREATE/DIR 'EXE_DIR'
$!
$! End The Architecture Specific Directory Check.
$!
$ ENDIF
$!
$! Define The Library Name.
$!
$ SSL_LIB := 'EXE_DIR'SSL_LIBSSL'LIB32'.OLB
$!
$! Define The CRYPTO-LIB We Are To Use.
$!
$ CRYPTO_LIB := SYS$DISK:[-.'ARCHD'.EXE.CRYPTO]SSL_LIBCRYPTO'LIB32'.OLB
$!
$! Check To See What We Are To Do.
$!
$ IF (BUILDALL.EQS."TRUE")
$ THEN
$!
$!  Since Nothing Special Was Specified, Do Everything.
$!
$   GOSUB LIBRARY
$   GOSUB SSL_TASK
$!
$! Else...
$!
$ ELSE
$!
$!  Build Just What The User Wants Us To Build.
$!
$   GOSUB 'BUILDALL'
$!
$! End The BUILDALL Check.
$!
$ ENDIF
$!
$! Time To EXIT.
$!
$ EXIT:
$ GOSUB CLEANUP
$ EXIT   
$!
$! Compile The Library.
$!
$ LIBRARY:
$!
$! Check To See If We Already Have A "[.xxx.EXE.SSL]SSL_LIBSSL''LIB32'.OLB" Library...
$!
$ IF (F$SEARCH(SSL_LIB).EQS."")
$ THEN
$!
$! Guess Not, Create The Library.
$!
$   LIBRARY/CREATE/OBJECT 'SSL_LIB'
$!
$! End The Library Exist Check.
$!
$ ENDIF
$!
$! Define The Different SSL "library" Files.
$!
$ LIB_SSL = "s2_meth,s2_srvr,s2_clnt,s2_lib,s2_enc,s2_pkt,"+ -
	    "s3_meth,s3_srvr,s3_clnt,s3_lib,s3_enc,s3_pkt,s3_both,"+ -
	    "s23_meth,s23_srvr,s23_clnt,s23_lib,s23_pkt,"+ -
	    "t1_meth,t1_srvr,t1_clnt,t1_lib,t1_enc,"+ -
	    "d1_meth,d1_srvr,d1_clnt,d1_lib,d1_pkt,"+ -
	    "d1_both,d1_enc,"+ -
	    "ssl_lib,ssl_err2,ssl_cert,ssl_sess,"+ -
	    "ssl_ciph,ssl_stat,ssl_rsa,"+ -
	    "ssl_asn1,ssl_txt,ssl_algs,"+ -
	    "bio_ssl,ssl_err,kssl,tls_srp,t1_reneg"
$!
$! Tell The User That We Are Compiling The Library.
$!
$ WRITE SYS$OUTPUT "Building The ",SSL_LIB," Library."
$!
$! Define A File Counter And Set It To "0"
$!
$ FILE_COUNTER = 0
$!
$! Top Of The File Loop.
$!
$ NEXT_FILE:
$!
$! O.K, Extract The File Name From The File List.
$!
$ FILE_NAME = F$ELEMENT(FILE_COUNTER,",",LIB_SSL)
$!
$! Check To See If We Are At The End Of The File List.
$!
$ IF (FILE_NAME.EQS.",") THEN GOTO FILE_DONE
$!
$! Increment The Counter.
$!
$ FILE_COUNTER = FILE_COUNTER + 1
$!
$! Create The Source File Name.
$!
$ SOURCE_FILE = "SYS$DISK:[]" + FILE_NAME + ".C"
$!
$! Create The Object File Name.
$!
$ OBJECT_FILE = OBJ_DIR + FILE_NAME + ".OBJ"
$ ON WARNING THEN GOTO NEXT_FILE
$!
$! Check To See If The File We Want To Compile Is Actually There.
$!
$ IF (F$SEARCH(SOURCE_FILE).EQS."")
$ THEN
$!
$!  Tell The User That The File Dosen't Exist.
$!
$   WRITE SYS$OUTPUT ""
$   WRITE SYS$OUTPUT "The File ",SOURCE_FILE," Dosen't Exist."
$   WRITE SYS$OUTPUT ""
$!
$!  Exit The Build.
$!
$   EXIT
$!
$! End The File Exists Check.
$!
$ ENDIF
$!
$!  Tell The User What File We Are Compiling.
$!
$ WRITE SYS$OUTPUT "	",FILE_NAME,".c"
$!
$! Compile The File.
$!
$ ON ERROR THEN GOTO NEXT_FILE
$ CC/OBJECT='OBJECT_FILE' 'SOURCE_FILE'
$!
$! Add It To The Library.
$!
$ LIBRARY/REPLACE/OBJECT 'SSL_LIB' 'OBJECT_FILE'
$!
$! Time To Clean Up The Object File.
$!
$ DELETE 'OBJECT_FILE';*
$!
$! Go Back And Get The Next File Name.
$!
$ GOTO NEXT_FILE
$!
$! All Done With This Library.
$!
$ FILE_DONE:
$!
$! Tell The User That We Are All Done.
$!
$ WRITE SYS$OUTPUT "Library ",SSL_LIB," Compiled."
$!
$! Time To RETURN.
$!
$ RETURN
$ SSL_TASK:
$!
$! Check To See If We Have The Proper Libraries.
$!
$ GOSUB LIB_CHECK
$!
$! Check To See If We Have A Linker Option File.
$!
$ GOSUB CHECK_OPT_FILE
$!
$! Check To See If The File We Want To Compile Is Actually There.
$!
$ IF (F$SEARCH("SYS$DISK:[]SSL_TASK.C").EQS."")
$ THEN
$!
$!  Tell The User That The File Dosen't Exist.
$!
$   WRITE SYS$OUTPUT ""
$   WRITE SYS$OUTPUT "The File SSL_TASK.C Dosen't Exist."
$   WRITE SYS$OUTPUT ""
$!
$!  Exit The Build.
$!
$   EXIT
$!
$! End The SSL_TASK.C File Check.
$!
$ ENDIF
$!
$! Tell The User We Are Creating The SSL_TASK.
$!
$ WRITE SYS$OUTPUT "Creating SSL_TASK OSU HTTP SSL Engine."	
$!
$!  Tell The User What File We Are Compiling.
$!
$ FILE_NAME = "ssl_task"
$ WRITE SYS$OUTPUT "	",FILE_NAME,".c"
$!
$! Compile The File.
$!
$ ON ERROR THEN GOTO SSL_TASK_END
$!
$ write sys$output "        \Using special rule (5)"
$ x = "    "+ CC5
$ write /symbol sys$output x
$!
$ CC5/OBJECT='OBJ_DIR''FILE_NAME'.OBJ SYS$DISK:[]'FILE_NAME'.C
$!
$! Link The Program.
$!
$ LINK /'DEBUGGER' /'LINKMAP' /'TRACEBACK' /EXE='EXE_DIR'SSL_TASK.EXE -
   'OBJ_DIR'SSL_TASK.OBJ, -
   'SSL_LIB'/LIBRARY, -
   'CRYPTO_LIB'/LIBRARY -
   'TCPIP_LIB' -
   'ZLIB_LIB' -
   ,'OPT_FILE' /OPTIONS
$!
$! Time To Return.
$!
$SSL_TASK_END:
$ RETURN
$!
$! Check For The Link Option FIle.
$!
$ CHECK_OPT_FILE:
$!
$! Check To See If We Need To Make A VAX C Option File.
$!
$ IF (COMPILER.EQS."VAXC")
$ THEN
$!
$!  Check To See If We Already Have A VAX C Linker Option File.
$!
$   IF (F$SEARCH(OPT_FILE).EQS."")
$   THEN
$!
$!    We Need A VAX C Linker Option File.
$!
$     CREATE 'OPT_FILE'
$DECK
!
! Default System Options File To Link Against 
! The Sharable VAX C Runtime Library.
!
SYS$SHARE:VAXCRTL.EXE/SHARE
$EOD
$!
$!  End The Option File Check.
$!
$   ENDIF
$!
$! End The VAXC Check.
$!
$ ENDIF
$!
$! Check To See If We Need A GNU C Option File.
$!
$ IF (COMPILER.EQS."GNUC")
$ THEN
$!
$!  Check To See If We Already Have A GNU C Linker Option File.
$!
$   IF (F$SEARCH(OPT_FILE).EQS."")
$   THEN
$!
$!    We Need A GNU C Linker Option File.
$!
$     CREATE 'OPT_FILE'
$DECK
!
! Default System Options File To Link Against 
! The Sharable C Runtime Library.
!
GNU_CC:[000000]GCCLIB/LIBRARY
SYS$SHARE:VAXCRTL/SHARE
$EOD
$!
$!  End The Option File Check.
$!
$   ENDIF
$!
$! End The GNU C Check.
$!
$ ENDIF
$!
$! Check To See If We Need A DEC C Option File.
$!
$ IF (COMPILER.EQS."DECC")
$ THEN
$!
$!  Check To See If We Already Have A DEC C Linker Option File.
$!
$   IF (F$SEARCH(OPT_FILE).EQS."")
$   THEN
$!
$!    Figure Out If We Need A non-VAX Or A VAX Linker Option File.
$!
$     IF (ARCH.EQS."VAX")
$     THEN
$!
$!      We Need A DEC C Linker Option File For VAX.
$!
$       CREATE 'OPT_FILE'
$DECK
!
! Default System Options File To Link Against 
! The Sharable DEC C Runtime Library.
!
SYS$SHARE:DECC$SHR.EXE/SHARE
$EOD
$!
$!    Else...
$!
$     ELSE
$!
$!      Create The non-VAX Linker Option File.
$!
$       CREATE 'OPT_FILE'
$DECK
!
! Default System Options File For non-VAX To Link Against 
! The Sharable C Runtime Library.
!
SYS$SHARE:CMA$OPEN_LIB_SHR/SHARE
SYS$SHARE:CMA$OPEN_RTL/SHARE
$EOD
$!
$!    End The DEC C Option File Check.
$!
$     ENDIF
$!
$!  End The Option File Search.
$!
$   ENDIF
$!
$! End The DEC C Check.
$!
$ ENDIF
$!
$!  Tell The User What Linker Option File We Are Using.
$!
$ WRITE SYS$OUTPUT "Using Linker Option File ",OPT_FILE,"."	
$!
$! Time To RETURN.
$!
$ RETURN
$ LIB_CHECK:
$!
$! Look For The VAX Library LIBSSL.OLB.
$!
$ IF (F$SEARCH(SSL_LIB).EQS."")
$ THEN
$!
$!  Tell The User We Can't Find The LIBSSL.OLB Library.
$!
$   WRITE SYS$OUTPUT ""
$   WRITE SYS$OUTPUT "Can't Find The Library ",SSL_LIB,"."
$   WRITE SYS$OUTPUT "We Can't Link Without It."
$   WRITE SYS$OUTPUT ""
$!
$!  Since We Can't Link Without It, Exit.
$!
$   EXIT
$!
$! End The LIBSSL.OLB Library Check.
$!
$ ENDIF
$!
$! Look For The Library LIBCRYPTO.OLB.
$!
$ IF (F$SEARCH(CRYPTO_LIB).EQS."")
$ THEN
$!
$!  Tell The User We Can't Find The LIBCRYPTO.OLB Library.
$!
$   WRITE SYS$OUTPUT ""
$   WRITE SYS$OUTPUT "Can't Find The Library ",CRYPTO_LIB,"."
$   WRITE SYS$OUTPUT "We Can't Link Without It."
$   WRITE SYS$OUTPUT ""
$!
$!  Since We Can't Link Without It, Exit.
$!
$   EXIT
$!
$! End The LIBCRYPTO.OLB Library Check.
$!
$ ENDIF
$!
$! Time To Return.
$!
$ RETURN
$!
$! Check The User's Options.
$!
$ CHECK_OPTIONS:
$!
$! Check To See If P1 Is Blank.
$!
$ IF (P1.EQS."ALL")
$ THEN
$!
$!   P1 Is Blank, So Build Everything.
$!
$    BUILDALL = "TRUE"
$!
$! Else...
$!
$ ELSE
$!
$!  Else, Check To See If P1 Has A Valid Argument.
$!
$   IF (P1.EQS."LIBRARY").OR.(P1.EQS."SSL_TASK")
$   THEN
$!
$!    A Valid Argument.
$!
$     BUILDALL = P1
$!
$!  Else...
$!
$   ELSE
$!
$!    Tell The User We Don't Know What They Want.
$!
$     WRITE SYS$OUTPUT ""
$     WRITE SYS$OUTPUT "The Option ",P1," Is Invalid.  The Valid Options Are:"
$     WRITE SYS$OUTPUT ""
$     WRITE SYS$OUTPUT "    ALL      :  Just Build Everything."
$     WRITE SYS$OUTPUT "    LIBRARY  :  To Compile Just The [.xxx.EXE.SSL]LIBSSL.OLB Library."
$     WRITE SYS$OUTPUT "    SSL_TASK :  To Compile Just The [.xxx.EXE.SSL]SSL_TASK.EXE Program."
$     WRITE SYS$OUTPUT ""
$     WRITE SYS$OUTPUT " Where 'xxx' Stands For:"
$     WRITE SYS$OUTPUT ""
$     WRITE SYS$OUTPUT "    ALPHA[64]:  Alpha Architecture."
$     WRITE SYS$OUTPUT "    IA64[64] :  IA64 Architecture."
$     WRITE SYS$OUTPUT "    VAX      :  VAX Architecture."
$     WRITE SYS$OUTPUT ""
$!
$!    Time To EXIT.
$!
$     EXIT
$!
$!  End The Valid Argument Check.
$!
$   ENDIF
$!
$! End The P1 Check.
$!
$ ENDIF
$!
$! Check To See If P2 Is Blank.
$!
$ IF (P2.EQS."NODEBUG")
$ THEN
$!
$!  P2 Is NODEBUG, So Compile Without Debugger Information.
$!
$   DEBUGGER  = "NODEBUG"
$   LINKMAP = "NOMAP"
$   TRACEBACK = "NOTRACEBACK" 
$   GCC_OPTIMIZE = "OPTIMIZE"
$   CC_OPTIMIZE = "OPTIMIZE"
$   WRITE SYS$OUTPUT "No Debugger Information Will Be Produced During Compile."
$   WRITE SYS$OUTPUT "Compiling With Compiler Optimization."
$!
$! Else...
$!
$ ELSE
$!
$!  Check To See If We Are To Compile With Debugger Information.
$!
$   IF (P2.EQS."DEBUG")
$   THEN
$!
$!    Compile With Debugger Information.
$!
$     DEBUGGER  = "DEBUG"
$     LINKMAP = "MAP"
$     TRACEBACK = "TRACEBACK"
$     GCC_OPTIMIZE = "NOOPTIMIZE"
$     CC_OPTIMIZE = "NOOPTIMIZE"
$     WRITE SYS$OUTPUT "Debugger Information Will Be Produced During Compile."
$     WRITE SYS$OUTPUT "Compiling Without Compiler Optimization."
$   ELSE
$!
$!    Tell The User Entered An Invalid Option.
$!
$     WRITE SYS$OUTPUT ""
$     WRITE SYS$OUTPUT "The Option ",P2," Is Invalid.  The Valid Options Are:"
$     WRITE SYS$OUTPUT ""
$     WRITE SYS$OUTPUT "    DEBUG    :  Compile With The Debugger Information."
$     WRITE SYS$OUTPUT "    NODEBUG  :  Compile Without The Debugger Information."
$     WRITE SYS$OUTPUT ""
$!
$!    Time To EXIT.
$!
$     EXIT
$!
$!  End The Valid Argument Check.
$!
$   ENDIF
$!
$! End The P2 Check.
$!
$ ENDIF
$!
$! Special Threads For OpenVMS v7.1 Or Later
$!
$! Written By:  Richard Levitte
$!              richard@levitte.org
$!
$!
$! Check To See If We Have A Option For P5.
$!
$ IF (P5.EQS."")
$ THEN
$!
$!  Get The Version Of VMS We Are Using.
$!
$   ISSEVEN :=
$   TMP = F$ELEMENT(0,"-",F$EXTRACT(1,4,F$GETSYI("VERSION")))
$   TMP = F$INTEGER(F$ELEMENT(0,".",TMP)+F$ELEMENT(1,".",TMP))
$!
$!  Check To See If The VMS Version Is v7.1 Or Later.
$!
$   IF (TMP.GE.71)
$   THEN
$!
$!    We Have OpenVMS v7.1 Or Later, So Use The Special Threads.
$!
$     ISSEVEN := ,PTHREAD_USE_D4
$!
$!  End The VMS Version Check.
$!
$   ENDIF
$!
$! End The P5 Check.
$!
$ ENDIF
$!
$! Check P6 (POINTER_SIZE).
$!
$ IF (P6 .NES. "") .AND. (ARCH .NES. "VAX")
$ THEN
$!
$   IF (P6 .EQS. "32")
$   THEN
$     POINTER_SIZE = "/POINTER_SIZE=32"
$   ELSE
$     IF (P6 .EQS. "64")
$     THEN
$       POINTER_SIZE = "/POINTER_SIZE=64"
$       ARCHD = ARCH+ "_64"
$       LIB32 = ""
$     ELSE
$!
$!      Tell The User Entered An Invalid Option.
$!
$       WRITE SYS$OUTPUT ""
$       WRITE SYS$OUTPUT "The Option ", P6, -
         " Is Invalid.  The Valid Options Are:"
$       WRITE SYS$OUTPUT ""
$       WRITE SYS$OUTPUT "    """"  :  Compile with default (short) pointers."
$       WRITE SYS$OUTPUT "    32  :  Compile with 32-bit (short) pointers."
$       WRITE SYS$OUTPUT "    64  :  Compile with 64-bit (long) pointers."
$       WRITE SYS$OUTPUT ""
$! 
$!      Time To EXIT.
$!
$       EXIT
$!
$     ENDIF
$!
$   ENDIF
$!
$! End The P6 (POINTER_SIZE) Check.
$!
$ ENDIF
$!
$! Set basic C compiler /INCLUDE directories.
$!
$ CC_INCLUDES = "SYS$DISK:[-.CRYPTO],SYS$DISK:[-]"
$!
$! Check To See If P3 Is Blank.
$!
$ IF (P3.EQS."")
$ THEN
$!
$!  O.K., The User Didn't Specify A Compiler, Let's Try To
$!  Find Out Which One To Use.
$!
$!  Check To See If We Have GNU C.
$!
$   IF (F$TRNLNM("GNU_CC").NES."")
$   THEN
$!
$!    Looks Like GNUC, Set To Use GNUC.
$!
$     P3 = "GNUC"
$!
$!  End The GNU C Compiler Check.
$!
$   ELSE
$!
$!  Check To See If We Have VAXC Or DECC.
$!
$     IF (ARCH.NES."VAX").OR.(F$TRNLNM("DECC$CC_DEFAULT").NES."")
$     THEN 
$!
$!      Looks Like DECC, Set To Use DECC.
$!
$       P3 = "DECC"
$!
$!      Else...
$!
$     ELSE
$!
$!      Looks Like VAXC, Set To Use VAXC.
$!
$       P3 = "VAXC"
$!
$!    End The VAXC Compiler Check.
$!
$     ENDIF
$!
$!  End The DECC & VAXC Compiler Check.
$!
$   ENDIF
$!
$!  End The Compiler Check.
$!
$ ENDIF
$!
$! Check To See If We Have A Option For P4.
$!
$ IF (P4.EQS."")
$ THEN
$!
$!  Find out what socket library we have available
$!
$   IF F$PARSE("SOCKETSHR:") .NES. ""
$   THEN
$!
$!    We have SOCKETSHR, and it is my opinion that it's the best to use.
$!
$     P4 = "SOCKETSHR"
$!
$!    Tell the user
$!
$     WRITE SYS$OUTPUT "Using SOCKETSHR for TCP/IP"
$!
$!    Else, let's look for something else
$!
$   ELSE
$!
$!    Like UCX (the reason to do this before Multinet is that the UCX
$!    emulation is easier to use...)
$!
$     IF F$TRNLNM("UCX$IPC_SHR") .NES. "" -
	 .OR. F$PARSE("SYS$SHARE:UCX$IPC_SHR.EXE") .NES. "" -
	 .OR. F$PARSE("SYS$LIBRARY:UCX$IPC.OLB") .NES. ""
$     THEN
$!
$!	Last resort: a UCX or UCX-compatible library
$!
$	P4 = "UCX"
$!
$!      Tell the user
$!
$       WRITE SYS$OUTPUT "Using UCX or an emulation thereof for TCP/IP"
$!
$!	That was all...
$!
$     ENDIF
$   ENDIF
$ ENDIF
$!
$! Set Up Initial CC Definitions, Possibly With User Ones
$!
$ CCDEFS = "TCPIP_TYPE_''P4'"
$ IF F$TYPE(USER_CCDEFS) .NES. "" THEN CCDEFS = CCDEFS + "," + USER_CCDEFS
$ CCEXTRAFLAGS = ""
$ IF F$TYPE(USER_CCFLAGS) .NES. "" THEN CCEXTRAFLAGS = USER_CCFLAGS
$ CCDISABLEWARNINGS = "LONGLONGTYPE,LONGLONGSUFX,FOUNDCR"
$ IF F$TYPE(USER_CCDISABLEWARNINGS) .NES. "" THEN -
	CCDISABLEWARNINGS = CCDISABLEWARNINGS + "," + USER_CCDISABLEWARNINGS
$!
$! Check To See If We Have A ZLIB Option.
$!
$ ZLIB = P7
$ IF (ZLIB .NES. "")
$ THEN
$!
$!  Check for expected ZLIB files.
$!
$   err = 0
$   file1 = f$parse( "zlib.h", ZLIB, , , "SYNTAX_ONLY")
$   if (f$search( file1) .eqs. "")
$   then
$     WRITE SYS$OUTPUT ""
$     WRITE SYS$OUTPUT "The Option ", ZLIB, " Is Invalid."
$     WRITE SYS$OUTPUT "    Can't find header: ''file1'"
$     err = 1
$   endif
$   file1 = f$parse( "A.;", ZLIB)- "A.;"
$!
$   file2 = f$parse( ZLIB, "libz.olb", , , "SYNTAX_ONLY")
$   if (f$search( file2) .eqs. "")
$   then
$     if (err .eq. 0)
$     then
$       WRITE SYS$OUTPUT ""
$       WRITE SYS$OUTPUT "The Option ", ZLIB, " Is Invalid."
$     endif
$     WRITE SYS$OUTPUT "    Can't find library: ''file2'"
$     WRITE SYS$OUTPUT ""
$     err = err+ 2
$   endif
$   if (err .eq. 1)
$   then
$     WRITE SYS$OUTPUT ""
$   endif
$!
$   if (err .ne. 0)
$   then
$     EXIT
$   endif
$!
$   CCDEFS = """ZLIB=1"", "+ CCDEFS
$   CC_INCLUDES = CC_INCLUDES+ ", "+ file1
$   ZLIB_LIB = ", ''file2' /library"
$!
$!  Print info
$!
$   WRITE SYS$OUTPUT "ZLIB library spec: ", file2
$!
$! End The ZLIB Check.
$!
$ ENDIF
$!
$!  Check To See If The User Entered A Valid Parameter.
$!
$ IF (P3.EQS."VAXC").OR.(P3.EQS."DECC").OR.(P3.EQS."GNUC")
$ THEN
$!
$!  Check To See If The User Wanted DECC.
$!
$   IF (P3.EQS."DECC")
$   THEN
$!
$!    Looks Like DECC, Set To Use DECC.
$!
$     COMPILER = "DECC"
$!
$!    Tell The User We Are Using DECC.
$!
$     WRITE SYS$OUTPUT "Using DECC 'C' Compiler."
$!
$!    Use DECC...
$!
$     CC = "CC"
$     IF ARCH.EQS."VAX" .AND. F$TRNLNM("DECC$CC_DEFAULT").NES."/DECC" -
	 THEN CC = "CC/DECC"
$     CC = CC + "/''CC_OPTIMIZE'/''DEBUGGER'/STANDARD=RELAXED"+ -
       "''POINTER_SIZE'/NOLIST/PREFIX=ALL" + -
       "/INCLUDE=(''CC_INCLUDES')" + CCEXTRAFLAGS
$!
$!    Define The Linker Options File Name.
$!
$     OPT_FILE = "VAX_DECC_OPTIONS.OPT"
$!
$!  End DECC Check.
$!
$   ENDIF
$!
$!  Check To See If We Are To Use VAXC.
$!
$   IF (P3.EQS."VAXC")
$   THEN
$!
$!    Looks Like VAXC, Set To Use VAXC.
$!
$     COMPILER = "VAXC"
$!
$!    Tell The User We Are Using VAX C.
$!
$     WRITE SYS$OUTPUT "Using VAXC 'C' Compiler."
$!
$!    Compile Using VAXC.
$!
$     CC = "CC"
$     IF ARCH.NES."VAX"
$     THEN
$	WRITE SYS$OUTPUT "There is no VAX C on ''ARCH'!"
$	EXIT
$     ENDIF
$     IF F$TRNLNM("DECC$CC_DEFAULT").EQS."/DECC" THEN CC = "CC/VAXC"
$     CC = CC + "/''CC_OPTIMIZE'/''DEBUGGER'/NOLIST" + -
	   "/INCLUDE=(''CC_INCLUDES')" + CCEXTRAFLAGS
$     CCDEFS = CCDEFS + ",""VAXC"""
$!
$!    Define <sys> As SYS$COMMON:[SYSLIB]
$!
$     DEFINE/NOLOG SYS SYS$COMMON:[SYSLIB]
$!
$!    Define The Linker Options File Name.
$!
$     OPT_FILE = "VAX_VAXC_OPTIONS.OPT"
$!
$!  End VAXC Check
$!
$   ENDIF
$!
$!  Check To See If We Are To Use GNU C.
$!
$   IF (P3.EQS."GNUC")
$   THEN
$!
$!    Looks Like GNUC, Set To Use GNUC.
$!
$     COMPILER = "GNUC"
$!
$!    Tell The User We Are Using GNUC.
$!
$     WRITE SYS$OUTPUT "Using GNU 'C' Compiler."
$!
$!    Use GNU C...
$!
$     IF F$TYPE(GCC) .EQS. "" THEN GCC := GCC
$     CC = GCC+"/NOCASE_HACK/''GCC_OPTIMIZE'/''DEBUGGER'/NOLIST" + -
	   "/INCLUDE=(''CC_INCLUDES')" + CCEXTRAFLAGS
$!
$!    Define The Linker Options File Name.
$!
$     OPT_FILE = "VAX_GNUC_OPTIONS.OPT"
$!
$!  End The GNU C Check.
$!
$   ENDIF
$!
$!  Set up default defines
$!
$   CCDEFS = """FLAT_INC=1""," + CCDEFS
$!
$!  Finish up the definition of CC.
$!
$   IF COMPILER .EQS. "DECC"
$   THEN
$     IF CCDISABLEWARNINGS .EQS. ""
$     THEN
$       CC4DISABLEWARNINGS = "DOLLARID"
$     ELSE
$       CC4DISABLEWARNINGS = CCDISABLEWARNINGS + ",DOLLARID"
$       CCDISABLEWARNINGS = "/WARNING=(DISABLE=(" + CCDISABLEWARNINGS + "))"
$     ENDIF
$     CC4DISABLEWARNINGS = "/WARNING=(DISABLE=(" + CC4DISABLEWARNINGS + "))"
$   ELSE
$     CCDISABLEWARNINGS = ""
$     CC4DISABLEWARNINGS = ""
$   ENDIF
$   CC2 = CC + "/DEFINE=(" + CCDEFS + ",_POSIX_C_SOURCE)" + CCDISABLEWARNINGS
$   CC3 = CC + "/DEFINE=(" + CCDEFS + ISSEVEN + ")" + CCDISABLEWARNINGS
$   CC = CC + "/DEFINE=(" + CCDEFS + ")" + CCDISABLEWARNINGS
$   IF COMPILER .EQS. "DECC"
$   THEN
$     CC4 = CC - CCDISABLEWARNINGS + CC4DISABLEWARNINGS
$     CC5 = CC3 - CCDISABLEWARNINGS + CC4DISABLEWARNINGS
$   ELSE
$     CC4 = CC
$     CC5 = CC3
$   ENDIF
$!
$!  Show user the result
$!
$   WRITE/SYMBOL SYS$OUTPUT "Main Compiling Command: ",CC
$!
$!  Else The User Entered An Invalid Argument.
$!
$ ELSE
$!
$!  Tell The User We Don't Know What They Want.
$!
$   WRITE SYS$OUTPUT ""
$   WRITE SYS$OUTPUT "The Option ",P3," Is Invalid.  The Valid Options Are:"
$   WRITE SYS$OUTPUT ""
$   WRITE SYS$OUTPUT "    VAXC  :  To Compile With VAX C."
$   WRITE SYS$OUTPUT "    DECC  :  To Compile With DEC C."
$   WRITE SYS$OUTPUT "    GNUC  :  To Compile With GNU C."
$   WRITE SYS$OUTPUT ""
$!
$!  Time To EXIT.
$!
$   EXIT
$ ENDIF
$!
$! Time to check the contents, and to make sure we get the correct library.
$!
$ IF P4.EQS."SOCKETSHR" .OR. P4.EQS."MULTINET" .OR. P4.EQS."UCX" -
     .OR. P4.EQS."TCPIP" .OR. P4.EQS."NONE"
$ THEN
$!
$!  Check to see if SOCKETSHR was chosen
$!
$   IF P4.EQS."SOCKETSHR"
$   THEN
$!
$!    Set the library to use SOCKETSHR
$!
$     TCPIP_LIB = ",SYS$DISK:[-.VMS]SOCKETSHR_SHR.OPT /OPTIONS"
$!
$!    Done with SOCKETSHR
$!
$   ENDIF
$!
$!  Check to see if MULTINET was chosen
$!
$   IF P4.EQS."MULTINET"
$   THEN
$!
$!    Set the library to use UCX emulation.
$!
$     P4 = "UCX"
$!
$!    Done with MULTINET
$!
$   ENDIF
$!
$!  Check to see if UCX was chosen
$!
$   IF P4.EQS."UCX"
$   THEN
$!
$!    Set the library to use UCX.
$!
$     TCPIP_LIB = ",SYS$DISK:[-.VMS]UCX_SHR_DECC.OPT /OPTIONS"
$     IF F$TRNLNM("UCX$IPC_SHR") .NES. ""
$     THEN
$       TCPIP_LIB = ",SYS$DISK:[-.VMS]UCX_SHR_DECC_LOG.OPT /OPTIONS"
$     ELSE
$       IF COMPILER .NES. "DECC" .AND. ARCH .EQS. "VAX" THEN -
	  TCPIP_LIB = ",SYS$DISK:[-.VMS]UCX_SHR_VAXC.OPT /OPTIONS"
$     ENDIF
$!
$!    Done with UCX
$!
$   ENDIF
$!
$!  Check to see if TCPIP was chosen
$!
$   IF P4.EQS."TCPIP"
$   THEN
$!
$!    Set the library to use TCPIP (post UCX).
$!
$     TCPIP_LIB = ",SYS$DISK:[-.VMS]TCPIP_SHR_DECC.OPT /OPTIONS"
$!
$!    Done with TCPIP
$!
$   ENDIF
$!
$!  Check to see if NONE was chosen
$!
$   IF P4.EQS."NONE"
$   THEN
$!
$!    Do not use a TCPIP library.
$!
$     TCPIP_LIB = ""
$!
$!    Done with NONE
$!
$   ENDIF
$!
$!  Print info
$!
$   WRITE SYS$OUTPUT "TCP/IP library spec: ", TCPIP_LIB- ","
$!
$!  Else The User Entered An Invalid Argument.
$!
$ ELSE
$!
$!  Tell The User We Don't Know What They Want.
$!
$   WRITE SYS$OUTPUT ""
$   WRITE SYS$OUTPUT "The Option ",P4," Is Invalid.  The Valid Options Are:"
$   WRITE SYS$OUTPUT ""
$   WRITE SYS$OUTPUT "    SOCKETSHR  :  To link with SOCKETSHR TCP/IP library."
$   WRITE SYS$OUTPUT "    UCX        :  To link with UCX TCP/IP library."
$   WRITE SYS$OUTPUT "    TCPIP      :  To link with TCPIP (post UCX) TCP/IP library."
$   WRITE SYS$OUTPUT ""
$!
$!  Time To EXIT.
$!
$   EXIT
$!
$!  Done with TCP/IP libraries
$!
$ ENDIF
$!
$!  Time To RETURN...
$!
$ RETURN
$!
$ INITIALISE:
$!
$! Save old value of the logical name OPENSSL
$!
$ __SAVE_OPENSSL = F$TRNLNM("OPENSSL","LNM$PROCESS_TABLE")
$!
$! Save directory information
$!
$ __HERE = F$PARSE(F$PARSE("A.;",F$ENVIRONMENT("PROCEDURE"))-"A.;","[]A.;") - "A.;"
$ __HERE = F$EDIT(__HERE,"UPCASE")
$ __TOP = __HERE - "SSL]"
$ __INCLUDE = __TOP + "INCLUDE.OPENSSL]"
$!
$! Set up the logical name OPENSSL to point at the include directory
$!
$ DEFINE OPENSSL/NOLOG '__INCLUDE'
$!
$! Done
$!
$ RETURN
$!
$ CLEANUP:
$!
$! Restore the logical name OPENSSL if it had a value
$!
$ IF __SAVE_OPENSSL .EQS. ""
$ THEN
$   DEASSIGN OPENSSL
$ ELSE
$   DEFINE/NOLOG OPENSSL '__SAVE_OPENSSL'
$ ENDIF
$!
$! Done
$!
$ RETURN