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path: root/support/dktools/scripts/transform-config.pl
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#! /usr/bin/perl

# Copyright (c) 2002-2016, Dirk Krause. All rights reserved.
# SPDX-License-Identifier: BSD-3-Clause

my @constnames;
my $nconstnames = 0;

my @oldconstnames;
my $noldconstnames = 0;

sub read_config_h_in_file()
{
  my $back = 0;
  my $lineno = 0;
  my $fh = undef;
  my $line;
  my $name;
  my $nfound = 0;
  my $inscope = 1;
  if ( open($fh, "<config.h.in") ) {
    $back = 1;
    while(<$fh>) {
      $line = $_; chomp $line; $lineno++;
      if ($line =~ /Backward\s+compatibility\s+section\s+start/o) {
        $inscope = 0;
      } else {
        if ($line =~ /Backward\s+compatibility\s+section\s+end/o) {
	  $inscope = 1;
	} else {
	  if (0 != $inscope) {
            if ($line =~ /^#define\s*(\S*)\s+/o) {
              $name = $1;
	      if (0 < $nfound) {
	        $constnames[$nconstnames++] = $name;
	      }
	      $nfound++;
            }
	  } else {
            if ($line =~ /^#define\s*(\S*)\s+/o) {
              $name = $1;
	      if (0 < $nfound) {
	        $oldconstnames[$noldconstnames++] = $name;
	      }
	      $nfound++;
            }
	  }
	}
      }
    }
    close($fh);
  } else {
    print "ERROR: Failed to read config.h.in file!\n";
  }
  return $back;
}

sub write_dk4info1_c_file()
{
  my $fh = undef;
  my $name;
  if ( open($fh, ">dk4info1.c") ) {
    print $fh "static\nvoid\nshowdefines(void)\n{\n  dkChar buf[64];\n\n";
    foreach $name (sort @constnames) {
      if ($name =~ /SIZEOF/o) {
        print $fh "#ifdef DK4_$name\n";
	print $fh "  dk4ma_write_decimal_unsigned(buf, DK4_SIZEOF(buf, dkChar), (dk4_um_t)DK4_$name, 0, NULL);\n";
	print $fh "  dk4fputs(dkT(\"DK4_$name = \"), stdout, NULL);\n";
	print $fh "  dk4fputs(buf, stdout, NULL);\n";
	print $fh "  dk4fputc(dkT('\\n'), stdout, NULL);\n";
	print $fh "#else\n";
	print $fh "  dk4fputs(dkT(\"DK4_$name = 0\\n\"), stdout, NULL);\n";
	print $fh "#endif\n";
      }
      elsif ($name =~ /HAVE/o) {
        print $fh "#if DK4_$name\n";
	print $fh "  dk4fputs(dkT(\"DK4_$name = 1\\n\"), stdout, NULL);\n";
	print $fh "#else\n";
	print $fh "  dk4fputs(dkT(\"DK4_$name = 0\\n\"), stdout, NULL);\n";
	print $fh "#endif\n";
      }
      else {
        print $fh "#ifdef DK4_$name\n";
	print $fh "  dk4ma_write_decimal_unsigned(buf, DK4_SIZEOF(buf, dkChar), (dk4_um_t)DK4_$name, 0, NULL);\n";
	print $fh "  dk4fputs(dkT(\"DK4_$name = \"), stdout, NULL);\n";
	print $fh "  dk4fputs(buf, stdout, NULL);\n";
	print $fh "  dk4fputc(dkT('\\n'), stdout, NULL);\n";
	print $fh "#else\n";
	print $fh "  dk4fputs(dkT(\"DK4_$name = 0\\n\"), stdout, NULL);\n";
	print $fh "#endif\n";
      }
      print $fh "\n";
    }
    print $fh "}\n";
    close($fh);
  } else {
    print "ERROR: Failed to write dk4info1.c file!\n";
  }
}

sub write_dkconfig_c_file()
{
  my $fh = undef;

  if ( open($fh, ">dk4config.c") ) {
    print $fh "/*\n";
    print $fh "Copyright 2020, Dirk Krause. All rights reserved.\n";
    print $fh "SPDX-License-Identifier:\tBSD-3-Clause\n";
    print $fh "*/\n\n";
    print $fh "/**\t\@file dk4config.cpp	Fix configure results.\n";
    print $fh "\tRedirect output from this program to the dk4conf.h file.\n";
    print $fh "*/\n\n";
    print $fh "#include \"config.h\"\n\n";
    print $fh "#if HAVE_LARGEFILE64_SOURCE\n";
    print $fh "#ifndef _LARGEFILE64_SOURCE\n";
    print $fh "#define _LARGEFILE64_SOURCE 1\n";
    print $fh "#endif\n";
    print $fh "#endif\n\n";
    print $fh "#include <stdio.h>\n\n";
    print $fh "#if HAVE_SYS_TYPES_H\n";
    print $fh "#include <sys/types.h>\n";
    print $fh "#endif\n";
    print $fh "#if HAVE_SYS_STAT_H\n";
    print $fh "#include <sys/stat.h>\n";
    print $fh "#endif\n\n";

    print $fh "#include <dk3trace.h>\n";
    print $fh "#ifndef TRACE_DEBUG\n";
    print $fh "#define TRACE_DEBUG 1\n";
    print $fh "#endif\n\n";

    print $fh "#if HAVE_LARGEFILE64_SOURCE\n\n";
    print $fh "#ifdef\t__cplusplus\n";
    print $fh "extern \"C\" {\n";
    print $fh "#endif\n\n";
    print $fh "int\n";
    print $fh "check_largefile64(void);\n\n";
    print $fh "#ifdef\t__cplusplus\n";
    print $fh "}\n";
    print $fh "#endif\n\n";
    print $fh "int\n";
    print $fh "check_largefile64(void)\n";
    print $fh "{\n";
    print $fh "  int back = 0;\n";
    print $fh "#if (HAVE_INO64_T) && (HAVE_INO_T)\n";
    print $fh "  if (sizeof(ino64_t) > sizeof(ino_t)) {\n";
    print $fh "    back = 1;\n";
    print $fh "  }\n";
    print $fh "#endif\n";
    print $fh "#if (HAVE__INO64_T) && (HAVE__INO_T)\n";
    print $fh "  if (sizeof(_ino64_t) > sizeof(_ino_t)) {\n";
    print $fh "    back = 1;\n";
    print $fh "  }\n";
    print $fh "#endif\n";
    print $fh "#if (HAVE_OFF64_T) && (HAVE_OFF_T)\n";
    print $fh "  if (sizeof(off64_t) > sizeof(off_t)) {\n";
    print $fh "    back = 1;\n";
    print $fh "  }\n";
    print $fh "#endif\n";
    print $fh "#if (HAVE__OFF64_T) && (HAVE__OFF_T)\n";
    print $fh "  if (sizeof(_off64_t) > sizeof(_off_t)) {\n";
    print $fh "    back = 1;\n";
    print $fh "  }\n";
    print $fh "#endif\n";
    print $fh "#if (HAVE_STAT64) && (HAVE_STAT)\n";
    print $fh "  if (sizeof(struct stat64) > sizeof(struct stat)) {\n";
    print $fh "    back = 1;\n";
    print $fh "  }\n";
    print $fh "#endif\n";
    print $fh "  return back;\n";
    print $fh "}\n";
    print $fh "#endif\n";

    print $fh "\n\nint\nmain(void)\n{\n";
    print $fh "\n";
    foreach $name (sort @constnames) {
      if ($name =~ /SIZEOF/o) {
        print $fh "#if $name\n";
	print $fh "  fputs(\"/**\tDK4 version of $name.\\n*/\\n\", stdout);\n";
	print $fh "  printf(\"#define DK4_$name %u\\n\", (unsigned)$name);\n";
	print $fh "#else\n";
	print $fh "  fputs(\"/**\tDK4 version of $name.\\n*/\\n\", stdout);\n";
	print $fh "  fputs(\"#define DK4_$name 0\\n\", stdout);\n";
	print $fh "#endif\n";
      }
      elsif ("$name" eq "HAVE_LARGEFILE64_SOURCE") {
        print $fh "#if $name\n";
	print $fh "  if (0 != check_largefile64()) {\n";
	print $fh "    fputs(\"/**\tDK4 version of $name.\\n*/\\n\", stdout);\n";
	print $fh "    fputs(\"#define DK4_$name 1\\n\", stdout);\n";
	print $fh "  } else {\n";
	print $fh "    fputs(\"/**\tDK4 version of $name.\\n*/\\n\", stdout);\n";
	print $fh "    fputs(\"#define DK4_$name 0\\n\", stdout);\n";
	print $fh "  }\n";
	print $fh "#else\n";
	print $fh "  fputs(\"/**\tDK4 version of $name.\\n*/\\n\", stdout);\n";
	print $fh "  fputs(\"#define DK4_$name 0\\n\", stdout);\n";
	print $fh "#endif\n";

      }
      elsif ($name =~ /HAVE/o) {
        print $fh "#if $name\n";
	print $fh "  fputs(\"/**\tDK4 version of $name.\\n*/\\n\", stdout);\n";
	print $fh "  fputs(\"#define DK4_$name 1\\n\", stdout);\n";
	print $fh "#else\n";
	print $fh "  fputs(\"/**\tDK4 version of $name.\\n*/\\n\", stdout);\n";
	print $fh "  fputs(\"#define DK4_$name 0\\n\", stdout);\n";
	print $fh "#endif\n";
      }
      else {
        print $fh "#if $name\n";
	print $fh "  fputs(\"/**\tDK4 version of $name.\\n*/\\n\", stdout);\n";
	print $fh "  printf(\"#define DK4_$name %u\\n\", (unsigned)$name);\n";
	print $fh "#else\n";
	print $fh "  fputs(\"/**\tDK4 version of $name.\\n*/\\n\", stdout);\n";
	print $fh "  fputs(\"#define DK4_$name 0\\n\", stdout);\n";
	print $fh "#endif\n";
      }
      print $fh "  fputc('\\n', stdout);\n";
    }

    print $fh "/* Large file support start */\n";
    print $fh "#if HAVE_LARGEFILE64_SOURCE\n";
    print $fh "  fputs(\"#if DK4_HAVE_LARGEFILE64_SOURCE\\n\", stdout);\n";
    print $fh "  fputs(\"#ifndef _LARGEFILE64_SOURCE\\n\", stdout);\n";
    print $fh "  fputs(\"/**\\tUse 64 bit file support.\\n*/\\n\", stdout);\n";
    print $fh "  fputs(\"#define _LARGEFILE64_SOURCE 1\\n\", stdout);\n";
    print $fh "  fputs(\"#endif\\n\", stdout);\n";
    print $fh "  fputs(\"#endif\\n\\n\\n\", stdout);\n";
    print $fh "#endif\n";
    print $fh "/* Large file support end */\n\n";
    print $fh "  return 0;\n}\n";
    close($fh);
  } else {
    print "ERROR: Failed to write dk4config.c file!\n";
  }
  $fh = undef;
  if ( open($fh, ">dk4wxcs.cpp") ) {
    print $fh "/**\t\@file dk4wxcs.cpp	Fix configure results.\n";
    print $fh "\tRedirect output from this program to the dk4conf.h file.\n";
    print $fh "*/\n\n";
    print $fh "#include \"config.h\"\n\n";
    print $fh "#if HAVE_LARGEFILE64_SOURCE\n";
    print $fh "#ifndef _LARGEFILE64_SOURCE\n";
    print $fh "#define _LARGEFILE64_SOURCE 1\n";
    print $fh "#endif\n";
    print $fh "#endif\n\n";
    print $fh "#include <stdio.h>\n\n";
    print $fh "#if HAVE_SYS_TYPES_H\n";
    print $fh "#include <sys/types.h>\n";
    print $fh "#endif\n";
    print $fh "#if HAVE_SYS_STAT_H\n";
    print $fh "#include <sys/stat.h>\n";
    print $fh "#endif\n\n";
    print $fh "/* wxWidgets_header_start */\n";
    print $fh "#if HAVE_WXWIDGETS\n";
    print $fh "#include <wx/wxprec.h>\n";
    print $fh "#ifdef __BORLANDC__\n";
    print $fh "#pragma hdrstop\n";
    print $fh "#endif \n";
    print $fh "#ifndef WX_PRECOMP\n";
    print $fh "#if HAVE_WX_CHARTYPE_H\n";
    print $fh "#if HAVE_WX_DEFS_H\n";
    print $fh "#ifndef WX_DEFS_H_INCLUDED\n";
    print $fh "#include <wx/defs.h>\n";
    print $fh "#define WX_DEFS_H_INCLUDED 1\n";
    print $fh "#endif\n";
    print $fh "#endif\n";
    print $fh "#ifndef WX_CHARTYPE_H_INCLUDED\n";
    print $fh "#include <wx/chartype.h>\n";
    print $fh "#define WX_CHARTYPE_H_INCLUDED 1\n";
    print $fh "#endif\n";
    print $fh "#else\n";
    print $fh "#if\tHAVE_WX_WXCHAR_H\n";
    print $fh "#if HAVE_WX_DEFS_H\n";
    print $fh "#ifndef WX_DEFS_H_INCLUDED\n";
    print $fh "#include <wx/defs.h>\n";
    print $fh "#define WX_DEFS_H_INCLUDED 1\n";
    print $fh "#endif\n";
    print $fh "#endif\n";
    print $fh "#ifndef WX_WXCHAR_H_INCLUDED\n";
    print $fh "#include <wx/wxchar.h>\n";
    print $fh "#define WX_WXCHAR_H_INCLUDED 1\n";
    print $fh "#endif\n";
    print $fh "#else\n";
    print $fh "#ifndef WX_WX_H_INCLUDED\n";
    print $fh "#include <wx/wx.h>\n";
    print $fh "#define WX_WX_H_INCLUDED 1\n";
    print $fh "#endif\n";
    print $fh "#endif\n";
    print $fh "#endif\n";
    print $fh "#endif\n";
    print $fh "#endif\n";
    print $fh "/* wxWidgets_header_end*/\n\n";

    print $fh "#include <dk3trace.h>\n";
    print $fh "#ifndef TRACE_DEBUG\n";
    print $fh "#define TRACE_DEBUG 1\n";
    print $fh "#endif\n\n";
    print $fh "\n\nint\nmain(void)\n{\n";
    print $fh "  fputs(\"/*\\nCopyright (C) 2020, Dirk Krause.\", stdout);\n";
    print $fh "  fputs(\" All rights reserved.\\n\", stdout);\n";
    print $fh "  fputs(\"SPDX-License-Identifier: BSD-3-Clause\\n\", stdout);\n";
    print $fh "  fputs(\"*/\\n\\n\", stdout);\n";
    print $fh "  fputs(\"#ifndef DK4WXCS_H_INCLUDED\\n\", stdout);\n";
    print $fh "  fputs(\"/**\tMultiple inclusion protection.*/\\n\",stdout);\n";
    print $fh "  fputs(\"#define DK4WXCS_H_INCLUDED 1\\n\\n\", stdout);\n";
    print $fh "/* wxWidgets_body_start */\n";
    print $fh "#if HAVE_WXWIDGETS\n";
    print $fh "  fputs(\"/**\tSize of wxChar.\\n*/\\n\", stdout);\n";
    print $fh "  printf(\"#define DK4_SIZEOF_WXCHAR %u\\n\\n\", (unsigned)sizeof(wxChar));\n";
    print $fh "#if HAVE_WX_CHARTYPE_H\n";
    print $fh "  fputs(\"/**\tSize of wxStringCharType.\\n*/\\n\", stdout);\n";
    print $fh "  printf(\"#define DK4_SIZEOF_WXSTRINGCHARTYPE %u\\n\\n\", (unsigned)sizeof(wxStringCharType));\n";
    print $fh "#else\n";
    print $fh "  fputs(\"/**\tSize of wxStringCharType.\\n*/\\n\", stdout);\n";
    print $fh "  fputs(\"#define DK4_SIZEOF_WXSTRINGCHARTYPE 0\\n\\n\", stdout);\n";
    print $fh "#endif\n";
    print $fh "#else\n";
    print $fh "  fputs(\"/**\tSize of wxChar.\\n*/\\n\", stdout);\n";
    print $fh "  fputs(\"#define DK4_SIZEOF_WXCHAR 0\\n\\n\", stdout);\n";
    print $fh "  fputs(\"/**\tSize of wxStringCharType.\\n*/\\n\", stdout);\n";
    print $fh "  fputs(\"#define DK4_SIZEOF_WXSTRINGCHARTYPE 0\\n\\n\", stdout);\n";
    print $fh "#endif\n";
    print $fh "/* wxWidgets_body_end */\n\n";
    print $fh "  fputs(\"\\n\\n#endif\\n\\n\", stdout);\n";
    print $fh "  return 0;\n}\n";
    close($fh);
  } else {
    print "ERROR: Failed to write dk4wxcs.cpp file!\n";
  }
}

sub write_dkconfig_cross()
{
  my $fh = undef;

  if ( open($fh, ">dk4conf.cross") ) {
    print $fh "#ifndef DK4CONF_H_INCLUDED\n\n";
    print $fh "/** Protection against multiple inclusions. */\n";
    print $fh "#define DK4CONF_H_INCLUDED 1\n\n";
    print $fh "#include \"config.h\"\n\n";

    print $fh "#ifndef DK4_ON_WINDOWS\n";
    print $fh "#if _WIN32\n";
    print $fh "#define DK4_ON_WINDOWS 1\n";
    print $fh "#ifndef\tHAVE_BACKSLASH_AS_SEP\n";
    print $fh "#define\tHAVE_BACKSLASH_AS_SEP\ŧ1\n";
    print $fh "#endif\n";
    print $fh "#else\n";
    print $fh "#define DK4_ON_WINDOWS 0\n";
    print $fh "#endif\n";
    print $fh "#endif\n\n";

    foreach $name (sort @constnames) {
      if ($name =~ /SIZEOF/o) {
	print $fh "#ifndef DK4_$name\n";
	print $fh "/**\tDK4 version of $name.\n";
	print $fh "*/\n";
	print $fh "#define DK4_$name $name\n";
	print $fh "#endif\n";
      }
      elsif ($name =~ /HAVE/o) {
	print $fh "#ifndef DK4_$name\n";
	print $fh "#if $name\n";
	print $fh "/** DK4 version of $name, available.\n";
	print $fh "*/\n";
	print $fh "#define DK4_$name 1\n";
	print $fh "#else\n";
	print $fh "/** DK4 version of $name, not available.\n";
	print $fh "*/\n";
	print $fh "#define DK4_$name 0\n";
	print $fh "#endif\n";
	print $fh "#endif\n";
      }
      else {
	print $fh "#ifndef DK4_$name\n";
	print $fh "#if $name\n";
	print $fh "/** DK4 version of $name, available.\n";
	print $fh "*/\n";
	print $fh "#define DK4_$name $name\n";
	print $fh "#else\n";
	print $fh "/** DK4 version of $name, not available.\n";
	print $fh "*/\n";
	print $fh "#define DK4_$name 0\n";
	print $fh "#endif\n";
	print $fh "#endif\n";
      }
      print $fh "\n";
    }
    print $fh "#endif\n/* if DK4CONF_H_INCLUDED */\n";
    close($fh);
  } else {
    print "ERROR: Failed to write dk4config.c file!\n";
  }
}

if ( read_config_h_in_file() ) {
    write_dk4info1_c_file();
    write_dkconfig_c_file();
    write_dkconfig_cross();
}