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curl/packages/vms/build_curlbuild_h.com
John E. Malmberg 25f351424b VMS: fix and generate the VMS build config
config_h.com is a new file that generates a config.h file based on the
curl_config.h.in file and a quick scan of the configure script.  This is
actually a generic procedure that is shared with other VMS packages.

The existing pre-built config-vms.h had over 100 entries that were not
correct and in some cases conflicted with the build options available in
the build_vms.com.

generate_config_vms_h_curl.com is a helper procedure to the
config_h.com.  It covers the cases that the generic config_h.com is not
able to figure out, and accepts input from the build_vms.com procedure.

build_curlbuild_h.com is a new file to generate the curlbuild.h file
that Curl is now using when it is using a curl_config.h file.

post-config-vms.h is a new file that is needed to provide VMS specific
definitions, and most of them need to be set before the system header
files are included.

The VMS build procedure is fixed:

   1. Fixed to link in the correct HP ssl library.
   2. Fixed to detect if HP Kerberos is installed.
   3. Fixed to detect if HP LDAP is installed.
   4. Fixed to detect if gnv$libzshr is installed.
   5. Simplified the input parameter parsing to not use a loop.
   6. Warn that 64 bit pointer option support is not complete
      in comments.
   7. Default to IEEE floating if platform supports it so
      resulting libcurl will be compatible with other
      open source projects on VMS.
   8. Default to LARGEFILE if platform supports it.
   9. Default to enable SSL, LDAP, Kerberos, libz
      if the libraries are present.
   10. Build with exact case global symbols for libcurl.
   11. Generate linker option file needed.
   12. Compiler list option only commonly needed items.
   13. fulllist option for those who really want it.
   14. Create debug symbol file on Alpha, IA64.
2013-02-05 23:08:57 +01:00

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$! File: config_h.com
$!
$! $Id: config_h.com,v 1.1.1.1 2012/12/02 19:25:21 wb8tyw Exp $
$!
$! This procedure attempts to figure out how to build a config.h file
$! for the current project.
$!
$! P1 specifies the config.h.in file or equivalent. If it is not specified
$! then this procedure will search for several common names of the file.
$!
$! The CONFIGURE shell script will be examined for hints and a few symbols
$! but most of the tests will not produce valid results on OpenVMS. Some
$! will produce false positives and some will produce false negatives.
$!
$! It is easier to just read the config.h_in file and make up tests based
$! on what is in it!
$!
$! This file will create an empty config_vms.h file if one does not exist.
$! The config_vms.h is intended for manual edits to handle things that
$! this procedure can not.
$!
$! The config_vms.h will be invoked by the resulting config.h file.
$!
$! This procedure knows about the DEC C RTL on the system it is on.
$! Future versions may be handle the GNV, the OpenVMS porting library,
$! and others.
$!
$! This procedure may not guess the options correctly for all architectures,
$! and is a work in progress.
$!
$! Copyright 2011, John Malmberg
$!
$! Permission to use, copy, modify, and/or distribute this software for any
$! purpose with or without fee is hereby granted, provided that the above
$! copyright notice and this permission notice appear in all copies.
$!
$! THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
$! WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
$! MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
$! ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
$! WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
$! ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
$! OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
$!
$! 15-Jan-2001 J. Malmberg Original
$! 29-Apr-2001 J. Malmberg Also look for config.*in* in a [.include]
$! subdirectory
$! 30-Apr-2001 J. Malmberg Update for SAMBA checks
$! 09-Apr-2005 J. Malmberg Update for RSYNC and large file.
$! 29-Sep-2011 J. Malmberg Update for Bash 4.2
$! 01-Mar-2012 J. Malmberg Warn about getcwd(0,0)
$! 21-Dec-2012 J. Malmberg Update for gawk
$! 29-Dec-2012 J. Malmberg Update for curl
$!============================================================================
$!
$ss_normal = 1
$ss_abort = 44
$ss_control_y = 1556
$status = ss_normal
$on control_y then goto control_y
$on warning then goto general_error
$!
$! Some information for writing timestamps to created files
$!----------------------------------------------------------
$my_proc = f$environment("PROCEDURE")
$my_proc_file = f$parse(my_proc,,,"NAME") + f$parse(my_proc,,,"TYPE")
$tab[0,8] = 9
$datetime = f$element(0,".",f$cvtime(,"ABSOLUTE","DATETIME"))
$username = f$edit(f$getjpi("","USERNAME"),"TRIM")
$!
$pid = f$getjpi("","PID")
$tfile1 = "SYS$SCRATCH:config_h_temp1_''pid'.TEMP"
$dchfile = "SYS$SCRATCH:config_h_decc_''pid'.TEMP"
$configure_script = "SYS$SCRATCH:configure_script_''pid'.TEMP"
$!
$! Get the system type
$!----------------------
$arch_type = f$getsyi("arch_type")
$!
$!
$! Write out the header
$!----------------------
$gosub write_curlbuild_h_header
$!
$!
$! config.h.in could have at least five different names depending
$! on how it was transferred to OpenVMS
$!------------------------------------------------------------------
$base_curlbuild = "sys$disk:[.include.curl]"
$if p1 .nes. ""
$then
$ cfile = p1
$else
$ cfile = f$search("''base_curlbuild'curlbuild.h.in")
$ if cfile .eqs. ""
$ then
$ cfile = f$search("''base_curlbuild'curlbuild.h_in")
$ if cfile .eqs. ""
$ then
$ cfile = f$search("''base_curlbuild'curlbuildh.in")
$ if cfile .eqs. ""
$ then
$ cfile = f$search("''base_curlbuild'curlbuild__2eh.in")
$ if cfile .eqs. ""
$ then
$ cfile = f$search("''base_curlbuild'curlbuild.h__2ein")
$ if cfile .eqs. ""
$ then
$ cfile = f$search("''base_curlbuild'curlbuild.h$5nin")
$ endif
$ endif
$ endif
$ endif
$ endif
$endif
$!
$if cfile .eqs. ""
$then
$ write sys$output "Can not find ''base_curlbuild'curlbuild.h.in"
$ line_out = "Looked for curlbuild.h.in, curlbuild.h_in, curlbuild.in, "
$ line_out = line_out + "curlbuild__2eh.in, curlbuild.h__2ein, "
$ line_out = line_out + "curlbuild.h$5nin"
$ write/symbol sys$output line_out
$ goto general_error
$endif
$!
$open/read inf 'cfile'
$do_comment = 0
$if_block = 0
$cfgh_in_loop1:
$!set nover
$ read/end=cfgh_in_loop1_end inf line_in
$ xline = f$edit(line_in,"TRIM,COMPRESS")
$!
$! Blank line handling
$!---------------------
$ if xline .eqs. ""
$ then
$ write tf ""
$ goto cfgh_in_loop1
$ endif
$ xlen = f$length(xline)
$ key = f$extract(0,2,xline)
$!
$! deal with comments by copying exactly
$!-----------------------------------------
$ if (do_comment .eq. 1) .or. (key .eqs. "/*")
$ then
$ do_comment = 1
$ write tf line_in
$ key = f$extract(xlen - 2, 2, xline)
$ if key .eqs. "*/" then do_comment = 0
$ goto cfgh_in_loop1
$ endif
$!
$! Some quick parsing
$!----------------------
$ keyif = f$extract(0,3,xline)
$ key1 = f$element(0," ",xline)
$ key2 = f$element(1," ",xline)
$ key2a = f$element(0,"_",key2)
$ key2b = f$element(1,"_",key2)
$ key2_len = f$length(key2)
$ key2_h = f$extract(key2_len - 2, 2, key2)
$ key2_t = f$extract(key2_len - 5, 5, key2)
$ if key2_t .eqs. "_TYPE" then key2_h = "_T"
$ key64 = 0
$ if f$locate("64", xline) .lt. xlen then key64 = 1
$!
$!write sys$output "xline = ''xline'"
$!
$ if key1 .nes. "#undef"
$ then
$ write tf line_in
$ goto cfgh_in_loop1
$ endif
$!
$! All versions of VMS have sys/types.h
$!----------------------------------------
$ if (key2 .eqs. "CURL_PULL_SYS_TYPES_H")
$ then
$ write tf "#define ''key2' 1"
$ goto cfgh_in_loop1
$ endif
$!
$! Most have sys/socket.h
$!-------------------------
$ if (key2 .eqs. "CURL_PULL_SYS_SOCKET_H")
$ then
$ write tf "#ifdef HAVE_SYS_SOCKET_H"
$ write tf "#define ''key2' 1"
$ write tf "#else"
$ write tf "#undef ''key2'"
$ write tf "#endif"
$ goto cfgh_in_loop1
$ endif
$!
$! VAX/VMS 7.3 does not have sys/poll.h
$!----------------------------------------
$ if (key2 .eqs. "CURL_PULL_SYS_POLL_H")
$ then
$ write tf "#ifdef HAVE_POLL_H"
$ write tf "#define ''key2' 1"
$ write tf "#else"
$ write tf "#undef ''key2'"
$ write tf "#endif"
$ goto cfgh_in_loop1
$ endif
$!
$ if (key2 .eqs. "CURL_SIZEOF_LONG")
$ then
$ write tf "#define ''key2' SIZEOF_INT"
$ goto cfgh_in_loop1
$ endif
$!
$ if (key2 .eqs. "CURL_SIZEOF_CURL_SOCKLEN_T")
$ then
$ write tf "#define ''key2' SIZEOF_INT"
$ goto cfgh_in_loop1
$ endif
$!
$ if (key2 .eqs. "CURL_TYPEOF_CURL_SOCKLEN_T")
$ then
$ write tf "#define ''key2' size_t"
$ goto cfgh_in_loop1
$ endif
$!
$ if (key2 .eqs. "CURL_TYPEOF_CURL_OFF_T")
$ then
$ write tf "#define ''key2' off_t"
$ goto cfgh_in_loop1
$ endif
$!
$ if (key2 .eqs. "CURL_FORMAT_CURL_OFF_T")
$ then
$ write tf "#if (SIZEOF_OFF_T == 8)"
$ write tf "#define ''key2' ""lld"""
$ write tf "#else"
$ write tf "#define ''key2' ""ld"""
$ write tf "#endif"
$ goto cfgh_in_loop1
$ endif
$!
$ if (key2 .eqs. "CURL_FORMAT_CURL_OFF_TU")
$ then
$ write tf "#if (SIZEOF_OFF_T == 8)"
$ write tf "#define ''key2' ""llu"""
$ write tf "#else"
$ write tf "#define ''key2' ""lu"""
$ write tf "#endif"
$ goto cfgh_in_loop1
$ endif
$!
$ if (key2 .eqs. "CURL_FORMAT_OFF_T")
$ then
$ write tf "#if (SIZEOF_OFF_T == 8)"
$ write tf "#define ''key2' ""%lld"""
$ write tf "#else"
$ write tf "#define ''key2' ""%ld"""
$ write tf "#endif"
$ goto cfgh_in_loop1
$ endif
$!
$ if (key2 .eqs. "CURL_SIZEOF_CURL_OFF_T")
$ then
$ write tf "#define ''key2' SIZEOF_OFF_T"
$ goto cfgh_in_loop1
$ endif
$!
$ if (key2 .eqs. "CURL_SUFFIX_CURL_OFF_T")
$ then
$ write tf "#if (SIZEOF_OFF_T == 8)"
$ write tf "#define ''key2' LL"
$ write tf "#else"
$ write tf "#define ''key2' L"
$ write tf "#endif"
$ goto cfgh_in_loop1
$ endif
$!
$ if (key2 .eqs. "CURL_SUFFIX_CURL_OFF_TU")
$ then
$ write tf "#if (SIZEOF_OFF_T == 8)"
$ write tf "#define ''key2' ULL"
$ write tf "#else"
$ write tf "#define ''key2' UL"
$ write tf "#endif"
$ goto cfgh_in_loop1
$ endif
$!
$!
$!
$! If it falls through everything else, comment it out
$!-----------------------------------------------------
$ write tf "/* ", xline, " */"
$ goto cfgh_in_loop1
$cfgh_in_loop1_end:
$close inf
$close tf
$!
$! Exit and clean up
$!--------------------
$general_error:
$status = '$status'
$all_exit:
$set noon
$if f$trnlnm("tf","lnm$process",,"SUPERVISOR") .nes. "" then close tf
$if f$trnlnm("inf","lnm$process",,"SUPERVISOR") .nes. "" then close inf
$exit 'status'
$!
$!
$control_y:
$ status = ss_control_y
$ goto all_exit
$!
$!
$! gosub to write out a documentation header for config.h
$!----------------------------------------------------------------
$write_curlbuild_h_header:
$outfile = "sys$disk:[.include.curl]curlbuild.h"
$create 'outfile'
$open/append tf 'outfile'
$write tf -
"/* [.include.curl]curlbuild.h. Generated from curlbuild.h.in by */"
$write tf -
"/* ", my_proc_file, tab, datetime, tab, username, tab, " */"
$write tf ""
$return