Use `#' to denote Autoconf comments, not `dnl'.
Put a few `' here and there to avoid misfontification and
misindentation.
Use your base name when reporting errors.
(parse_args::usage): Use $0, use the same order as the other
executables.
(parse_args): Don't dump `--help' on cmd line errors.
+2000-04-11 Akim Demaille <akim@epita.fr>
+
+ * autoscan.pl: Reindent using 2 spaces, not 4.
+ Use `#' to denote Autoconf comments, not `dnl'.
+ Put a few `\' here and there to avoid misfontification and
+ misindentation.
+ Use your base name when reporting errors.
+ (parse_args::usage): Use $0, use the same order as the other
+ executables.
+ (parse_args): Don't dump `--help' on cmd line errors.
+
2000-04-11 Akim Demaille <akim@epita.fr>
* acgeneral.m4 (AC_PROVIDE_IF): Rename as...
require "find.pl";
$datadir = $ENV{"AC_MACRODIR"} || "@datadir@";
+($me = $0) =~ s,.*/,,;
$verbose = 0;
+
# Reference these variables to pacify perl -w.
undef %identifiers_macros;
undef %makevars_macros;
# Process any command line arguments.
sub parse_args
{
- local ($usage) = <<'EOD';
-Usage: autoscan [OPTION] ... [SRCDIR]
+ # There are a couple of useless `\' below. They are used to have
+ # Emacs fontify properly.
+ local ($usage) = <<EOD;
+Usage: $0 [OPTION] ... [SRCDIR]
Examine source files in the directory tree rooted at SRCDIR, or the
current directory if none is given. Search the source files for
-common portability problems and create a file `configure.scan' which
-is a preliminary `configure.in' for that package.
+common portability problems and create a file \`configure.scan' which
+is a preliminary \`configure.in' for that package.
-h, --help print this help, then exit
-V, --version print version number, then exit
- -m, --macrodir=DIR directory storing data files
-v, --verbose verbosely report processing
+ -m, --macrodir=DIR directory storing data files
-Report bugs to <bug-autoconf@gnu.org>.
+Report bugs to <bug-autoconf\@gnu.org>.
EOD
- local ($version) = <<'EOD';
+ local ($version) = <<'EOD';
autoscan (GNU @PACKAGE@) @VERSION@
Written by David J. MacKenzie.
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
EOD
- local $need_datadir = 0;
-
- foreach $_ (@ARGV) {
- if (/^--m[a-z]*=(.*)/) {
- $datadir = $1;
- } elsif (/^-m$/) {
- $need_datadir = 1;
- } elsif (/^--h/ || /^-h$/) {
- print "$usage";
- exit 0;
- } elsif (/^--verb/ || /^-v$/) {
- $verbose = 1;
- } elsif (/^--vers/ || /^-V$/) {
- print "$version";
- exit 0;
- } elsif (/^[^-]/) {
- if ($need_datadir) {
- $datadir = $_;
- $need_datadir = 0;
- } else {
- die "$usage" if defined($srcdir);
- # Top level directory of the package being autoscanned.
- $srcdir = $_;
- }
- } else {
- die "$usage";
- }
+ local ($help) = "Try \`$me --help' for more information.";
+
+ local $need_datadir = 0;
+
+ foreach $_ (@ARGV) {
+ if (/^--m[a-z]*=(.*)/) {
+ $datadir = $1;
+ } elsif (/^-m$/) {
+ $need_datadir = 1;
+ } elsif (/^--h/ || /^-h$/) {
+ print "$usage";
+ exit 0;
+ } elsif (/^--verb/ || /^-v$/) {
+ $verbose = 1;
+ } elsif (/^--vers/ || /^-V$/) {
+ print "$version";
+ exit 0;
+ } elsif (/^[^-]/) {
+ if ($need_datadir) {
+ $datadir = $_;
+ $need_datadir = 0;
+ } else {
+ die "$me: too many arguments\n$help" if defined($srcdir);
+ # Top level directory of the package being autoscanned.
+ $srcdir = $_;
+ }
+ } else {
+ die "$me: invalid option $_\n$help";
}
+ }
- die $usage if $need_datadir;
+ die "$me: missing argument to -m\n$help" if $need_datadir;
- $srcdir="." if !defined($srcdir);
+ $srcdir="." if !defined($srcdir);
- print "srcdir=$srcdir\n" if $verbose;
- chdir $srcdir || die "$0: cannot cd to $srcdir: $!\n";
+ print "srcdir=$srcdir\n" if $verbose;
+ chdir $srcdir || die "$me: cannot cd to $srcdir: $!\n";
- open(CONF, ">configure.scan") ||
- die "$0: cannot create configure.scan: $!\n";
+ open(CONF, ">configure.scan") ||
+ die "$me: cannot create configure.scan: $!\n";
}
# Put values in the tables of what to do with each token.
sub init_tables
{
- local($kind, $word, $macro);
-
- # Initialize a table of C keywords (to ignore).
- # Taken from K&R 1st edition p. 180.
- # ANSI C, GNU C, and C++ keywords can introduce portability problems,
- # so don't ignore them.
- foreach $word ('int', 'char', 'float', 'double', 'struct', 'union',
- 'long', 'short', 'unsigned', 'auto', 'extern', 'register',
- 'typedef', 'static', 'goto', 'return', 'sizeof', 'break',
- 'continue', 'if', 'else', 'for', 'do', 'while', 'switch',
- 'case', 'default') {
- $c_keywords{$word} = 0;
- }
-
- # The data file format supports only one line of macros per function.
- # If more than that is required for a common portability problem,
- # a new Autoconf macro should probably be written for that case,
- # instead of duplicating the code in lots of configure.in files.
-
- foreach $kind ('functions', 'headers', 'identifiers', 'programs',
- 'makevars') {
- open(TABLE, "<$datadir/ac$kind") ||
- die "$0: cannot open $datadir/ac$kind: $!\n";
- while (<TABLE>) {
- next if /^\s*$/ || /^\s*#/; # Ignore blank lines and comments.
- ($word, $macro) = split;
- eval "\$$kind" . "_macros{\$word} = \$macro";
- }
- close(TABLE);
+ local($kind, $word, $macro);
+
+ # Initialize a table of C keywords (to ignore).
+ # Taken from K&R 1st edition p. 180.
+ # ANSI C, GNU C, and C++ keywords can introduce portability problems,
+ # so don't ignore them.
+ foreach $word ('int', 'char', 'float', 'double', 'struct', 'union',
+ 'long', 'short', 'unsigned', 'auto', 'extern', 'register',
+ 'typedef', 'static', 'goto', 'return', 'sizeof', 'break',
+ 'continue', 'if', 'else', 'for', 'do', 'while', 'switch',
+ 'case', 'default') {
+ $c_keywords{$word} = 0;
+ }
+
+ # The data file format supports only one line of macros per function.
+ # If more than that is required for a common portability problem,
+ # a new Autoconf macro should probably be written for that case,
+ # instead of duplicating the code in lots of configure.in files.
+
+ foreach $kind ('functions', 'headers', 'identifiers', 'programs',
+ 'makevars') {
+ open(TABLE, "<$datadir/ac$kind") ||
+ die "$me: cannot open $datadir/ac$kind: $!\n";
+ while (<TABLE>) {
+ next if /^\s*$/ || /^\s*#/; # Ignore blank lines and comments.
+ ($word, $macro) = split;
+ eval "\$$kind" . "_macros{\$word} = \$macro";
}
+ close(TABLE);
+ }
}
# Collect names of various kinds of files in the package.
# Called by &find on each file.
sub wanted
{
- if (/^.*\.[chlymC]$/ || /^.*\.cc$/) {
- $name =~ s?^\./??; push(@cfiles, $name);
- }
- elsif (/^[Mm]akefile$/ || /^[Mm]akefile\.in$/ || /^GNUmakefile$/) {
- $name =~ s?^\./??; push(@makefiles, $name);
- }
- elsif (/^.*\.sh$/) {
- $name =~ s?^\./??; push(@shfiles, $name);
- }
+ if (/^.*\.[chlymC]$/ || /^.*\.cc$/) {
+ $name =~ s?^\./??; push(@cfiles, $name);
+ }
+ elsif (/^[Mm]akefile$/ || /^[Mm]akefile\.in$/ || /^GNUmakefile$/) {
+ $name =~ s?^\./??; push(@makefiles, $name);
+ }
+ elsif (/^.*\.sh$/) {
+ $name =~ s?^\./??; push(@shfiles, $name);
+ }
}
# Read through the files and collect lists of tokens in them
# that might create nonportabilities.
sub scan_files
{
- $initfile = $cfiles[0]; # Pick one at random.
+ $initfile = $cfiles[0]; # Pick one at random.
+
+ if ($verbose) {
+ print "cfiles:", join(" ", @cfiles), "\n";
+ print "makefiles:", join(" ", @makefiles), "\n";
+ print "shfiles:", join(" ", @shfiles), "\n";
+ }
+
+ foreach $file (@cfiles) {
+ $programs{"cc"}++;
+ &scan_c_file($file);
+ }
+
+ foreach $file (@makefiles) {
+ &scan_makefile($file);
+ }
+
+ foreach $file (@shfiles) {
+ &scan_sh_file($file);
+ }
+}
- if ($verbose) {
- print "cfiles:", join(" ", @cfiles), "\n";
- print "makefiles:", join(" ", @makefiles), "\n";
- print "shfiles:", join(" ", @shfiles), "\n";
+sub scan_c_file
+{
+ local($file) = @_;
+ local($in_comment) = 0; # Nonzero if in a multiline comment.
+
+ open(CFILE, "<$file") || die "$me: cannot open $file: $!\n";
+ while (<CFILE>) {
+ # Strip out comments, approximately.
+ # Ending on this line.
+ if ($in_comment && m,\*/,) {
+ s,.*\*/,,;
+ $in_comment = 0;
}
-
- foreach $file (@cfiles) {
- $programs{"cc"}++;
- &scan_c_file($file);
+ # All on one line.
+ s,/\*.*\*/,,g;
+ # Starting on this line.
+ if (m,/\*,) {
+ $in_comment = 1;
}
+ # Continuing on this line.
+ next if $in_comment;
- foreach $file (@makefiles) {
- &scan_makefile($file);
+ # Preprocessor directives.
+ if (/^\s*\#\s*include\s*<([^>]*)>/) {
+ $headers{$1}++;
}
+ # Ignore other preprocessor directives.
+ next if /^\s*\#/;
- foreach $file (@shfiles) {
- &scan_sh_file($file);
- }
-}
+ # Remove string and character constants.
+ s,\"[^\"]*\",,g;
+ s,\'[^\']*\',,g;
-sub scan_c_file
-{
- local($file) = @_;
- local($in_comment) = 0; # Nonzero if in a multiline comment.
-
- open(CFILE, "<$file") || die "$0: cannot open $file: $!\n";
- while (<CFILE>) {
- # Strip out comments, approximately.
- # Ending on this line.
- if ($in_comment && m,\*/,) {
- s,.*\*/,,;
- $in_comment = 0;
- }
- # All on one line.
- s,/\*.*\*/,,g;
- # Starting on this line.
- if (m,/\*,) {
- $in_comment = 1;
- }
- # Continuing on this line.
- next if $in_comment;
-
- # Preprocessor directives.
- if (/^\s*#\s*include\s*<([^>]*)>/) {
- $headers{$1}++;
- }
- # Ignore other preprocessor directives.
- next if /^\s*#/;
-
- # Remove string and character constants.
- s,\"[^\"]*\",,g;
- s,\'[^\']*\',,g;
-
- # Tokens in the code.
- # Maybe we should ignore function definitions (in column 0)?
- while (s/\W([a-zA-Z_]\w*)\s*\(/ /) {
- $functions{$1}++ if !defined($c_keywords{$1});
- }
- while (s/\W([a-zA-Z_]\w*)\W/ /) {
- $identifiers{$1}++ if !defined($c_keywords{$1});
- }
+ # Tokens in the code.
+ # Maybe we should ignore function definitions (in column 0)?
+ while (s/\W([a-zA-Z_]\w*)\s*\(/ /) {
+ $functions{$1}++ if !defined($c_keywords{$1});
+ }
+ while (s/\W([a-zA-Z_]\w*)\W/ /) {
+ $identifiers{$1}++ if !defined($c_keywords{$1});
}
- close(CFILE);
+ }
+ close(CFILE);
- if ($verbose) {
- local($word);
+ if ($verbose) {
+ local($word);
- print "\n$file functions:\n";
- foreach $word (sort keys %functions) {
- print "$word $functions{$word}\n";
- }
+ print "\n$file functions:\n";
+ foreach $word (sort keys %functions) {
+ print "$word $functions{$word}\n";
+ }
- print "\n$file identifiers:\n";
- foreach $word (sort keys %identifiers) {
- print "$word $identifiers{$word}\n";
- }
+ print "\n$file identifiers:\n";
+ foreach $word (sort keys %identifiers) {
+ print "$word $identifiers{$word}\n";
+ }
- print "\n$file headers:\n";
- foreach $word (sort keys %headers) {
- print "$word $headers{$word}\n";
- }
+ print "\n$file headers:\n";
+ foreach $word (sort keys %headers) {
+ print "$word $headers{$word}\n";
}
+ }
}
sub scan_makefile
{
- local($file) = @_;
-
- open(MFILE, "<$file") || die "$0: cannot open $file: $!\n";
- while (<MFILE>) {
- # Strip out comments and variable references.
- s/#.*//;
- s/\$\([^\)]*\)//g;
- s/\${[^\}]*}//g;
- s/@[^@]*@//g;
-
- # Variable assignments.
- while (s/\W([a-zA-Z_]\w*)\s*=/ /) {
- $makevars{$1}++;
- }
- # Libraries.
- while (s/\W-l([a-zA-Z_]\w*)\W/ /) {
- $libraries{$1}++;
- }
- # Tokens in the code.
- while (s/\W([a-zA-Z_]\w*)\W/ /) {
- $programs{$1}++;
- }
+ local($file) = @_;
+
+ open(MFILE, "<$file") || die "$me: cannot open $file: $!\n";
+ while (<MFILE>) {
+ # Strip out comments and variable references.
+ s/#.*//;
+ s/\$\([^\)]*\)//g;
+ s/\${[^\}]*}//g;
+ s/@[^@]*@//g;
+
+ # Variable assignments.
+ while (s/\W([a-zA-Z_]\w*)\s*=/ /) {
+ $makevars{$1}++;
+ }
+ # Libraries.
+ while (s/\W-l([a-zA-Z_]\w*)\W/ /) {
+ $libraries{$1}++;
}
- close(MFILE);
+ # Tokens in the code.
+ while (s/\W([a-zA-Z_]\w*)\W/ /) {
+ $programs{$1}++;
+ }
+ }
+ close(MFILE);
- if ($verbose) {
- local($word);
+ if ($verbose) {
+ local($word);
- print "\n$file makevars:\n";
- foreach $word (sort keys %makevars) {
- print "$word $makevars{$word}\n";
- }
+ print "\n$file makevars:\n";
+ foreach $word (sort keys %makevars) {
+ print "$word $makevars{$word}\n";
+ }
- print "\n$file libraries:\n";
- foreach $word (sort keys %libraries) {
- print "$word $libraries{$word}\n";
- }
+ print "\n$file libraries:\n";
+ foreach $word (sort keys %libraries) {
+ print "$word $libraries{$word}\n";
+ }
- print "\n$file programs:\n";
- foreach $word (sort keys %programs) {
- print "$word $programs{$word}\n";
- }
+ print "\n$file programs:\n";
+ foreach $word (sort keys %programs) {
+ print "$word $programs{$word}\n";
}
+ }
}
sub scan_sh_file
{
- local($file) = @_;
-
- open(MFILE, "<$file") || die "$0: cannot open $file: $!\n";
- while (<MFILE>) {
- # Strip out comments and variable references.
- s/#.*//;
- s/\${[^\}]*}//g;
- s/@[^@]*@//g;
-
- # Tokens in the code.
- while (s/\W([a-zA-Z_]\w*)\W/ /) {
- $programs{$1}++;
- }
+ local($file) = @_;
+
+ open(MFILE, "<$file") || die "$me: cannot open $file: $!\n";
+ while (<MFILE>) {
+ # Strip out comments and variable references.
+ s/#.*//;
+ s/\${[^\}]*}//g;
+ s/@[^@]*@//g;
+
+ # Tokens in the code.
+ while (s/\W([a-zA-Z_]\w*)\W/ /) {
+ $programs{$1}++;
}
- close(MFILE);
+ }
+ close(MFILE);
- if ($verbose) {
- local($word);
+ if ($verbose) {
+ local($word);
- print "\n$file programs:\n";
- foreach $word (sort keys %programs) {
- print "$word $programs{$word}\n";
- }
+ print "\n$file programs:\n";
+ foreach $word (sort keys %programs) {
+ print "$word $programs{$word}\n";
}
+ }
}
# Print a configure.in.
sub output
{
- local (%unique_makefiles);
+ local (%unique_makefiles);
- print CONF "dnl Process this file with autoconf to produce a configure script.\n";
- print CONF "AC_INIT($initfile)\n";
+ print CONF "# Process this file with autoconf to produce a configure script.\n";
+ print CONF "AC_INIT($initfile)\n";
- &output_programs;
- &output_headers;
- &output_identifiers;
- &output_functions;
+ &output_programs;
+ &output_headers;
+ &output_identifiers;
+ &output_functions;
- # Change DIR/Makefile.in to DIR/Makefile.
- foreach $_ (@makefiles) {
- s/\.in$//;
- $unique_makefiles{$_}++;
- }
- print CONF "\nAC_OUTPUT(", join(" ", keys(%unique_makefiles)), ")\n";
+ # Change DIR/Makefile.in to DIR/Makefile.
+ foreach $_ (@makefiles) {
+ s/\.in$//;
+ $unique_makefiles{$_}++;
+ }
+ print CONF "\nAC_OUTPUT(", join(" ", keys(%unique_makefiles)), ")\n";
- close CONF;
+ close CONF;
}
# Print Autoconf macro $1 if it's not undef and hasn't been printed already.
sub print_unique
{
- local($macro) = @_;
+ local($macro) = @_;
- if (defined($macro) && !defined($printed{$macro})) {
- print CONF "$macro\n";
- $printed{$macro} = 1;
- }
+ if (defined($macro) && !defined($printed{$macro})) {
+ print CONF "$macro\n";
+ $printed{$macro} = 1;
+ }
}
sub output_programs
{
- local ($word);
-
- print CONF "\ndnl Checks for programs.\n";
- foreach $word (sort keys %programs) {
- &print_unique($programs_macros{$word});
- }
- foreach $word (sort keys %makevars) {
- &print_unique($makevars_macros{$word});
- }
- print CONF "\ndnl Checks for libraries.\n";
- foreach $word (sort keys %libraries) {
- print CONF "dnl Replace `\main\' with a function in -l$word:\n";
- print CONF "AC_CHECK_LIB($word, main)\n";
- }
+ local ($word);
+
+ print CONF "\n# Checks for programs.\n";
+ foreach $word (sort keys %programs) {
+ &print_unique($programs_macros{$word});
+ }
+ foreach $word (sort keys %makevars) {
+ &print_unique($makevars_macros{$word});
+ }
+ print CONF "\n# Checks for libraries.\n";
+ foreach $word (sort keys %libraries) {
+ print CONF "# Replace `\main\' with a function in -l$word:\n";
+ print CONF "AC_CHECK_LIB($word, main)\n";
+ }
}
sub output_headers
{
- local ($word);
-
- print CONF "\ndnl Checks for header files.\n";
- foreach $word (sort keys %headers) {
- if (defined($headers_macros{$word}) &&
- $headers_macros{$word} eq 'AC_CHECK_HEADERS') {
- push(@have_headers, $word);
- } else {
- &print_unique($headers_macros{$word});
- }
+ local ($word);
+
+ print CONF "\n# Checks for header files.\n";
+ foreach $word (sort keys %headers) {
+ if (defined($headers_macros{$word}) &&
+ $headers_macros{$word} eq 'AC_CHECK_HEADERS') {
+ push(@have_headers, $word);
+ } else {
+ &print_unique($headers_macros{$word});
}
- print CONF "AC_CHECK_HEADERS(" . join(' ', sort(@have_headers)) . ")\n"
- if defined(@have_headers);
+ }
+ print CONF "AC_CHECK_HEADERS(" . join(' ', sort(@have_headers)) . ")\n"
+ if defined(@have_headers);
}
sub output_identifiers
{
- local ($word);
+ local ($word);
- print CONF "\ndnl Checks for typedefs, structures, and compiler characteristics.\n";
- foreach $word (sort keys %identifiers) {
- &print_unique($identifiers_macros{$word});
- }
+ print CONF "\n# Checks for typedefs, structures, and compiler characteristics.\n";
+ foreach $word (sort keys %identifiers) {
+ &print_unique($identifiers_macros{$word});
+ }
}
sub output_functions
{
- local ($word);
-
- print CONF "\ndnl Checks for library functions.\n";
- foreach $word (sort keys %functions) {
- if (defined($functions_macros{$word}) &&
- $functions_macros{$word} eq 'AC_CHECK_FUNCS') {
- push(@have_funcs, $word);
- } else {
- &print_unique($functions_macros{$word});
- }
+ local ($word);
+
+ print CONF "\n# Checks for library functions.\n";
+ foreach $word (sort keys %functions) {
+ if (defined($functions_macros{$word}) &&
+ $functions_macros{$word} eq 'AC_CHECK_FUNCS') {
+ push(@have_funcs, $word);
+ } else {
+ &print_unique($functions_macros{$word});
}
- print CONF "AC_CHECK_FUNCS(" . join(' ', sort(@have_funcs)) . ")\n"
- if defined(@have_funcs);
+ }
+ print CONF "AC_CHECK_FUNCS(" . join(' ', sort(@have_funcs)) . ")\n"
+ if defined(@have_funcs);
}
require "find.pl";
$datadir = $ENV{"AC_MACRODIR"} || "@datadir@";
+($me = $0) =~ s,.*/,,;
$verbose = 0;
+
# Reference these variables to pacify perl -w.
undef %identifiers_macros;
undef %makevars_macros;
# Process any command line arguments.
sub parse_args
{
- local ($usage) = <<'EOD';
-Usage: autoscan [OPTION] ... [SRCDIR]
+ # There are a couple of useless `\' below. They are used to have
+ # Emacs fontify properly.
+ local ($usage) = <<EOD;
+Usage: $0 [OPTION] ... [SRCDIR]
Examine source files in the directory tree rooted at SRCDIR, or the
current directory if none is given. Search the source files for
-common portability problems and create a file `configure.scan' which
-is a preliminary `configure.in' for that package.
+common portability problems and create a file \`configure.scan' which
+is a preliminary \`configure.in' for that package.
-h, --help print this help, then exit
-V, --version print version number, then exit
- -m, --macrodir=DIR directory storing data files
-v, --verbose verbosely report processing
+ -m, --macrodir=DIR directory storing data files
-Report bugs to <bug-autoconf@gnu.org>.
+Report bugs to <bug-autoconf\@gnu.org>.
EOD
- local ($version) = <<'EOD';
+ local ($version) = <<'EOD';
autoscan (GNU @PACKAGE@) @VERSION@
Written by David J. MacKenzie.
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
EOD
- local $need_datadir = 0;
-
- foreach $_ (@ARGV) {
- if (/^--m[a-z]*=(.*)/) {
- $datadir = $1;
- } elsif (/^-m$/) {
- $need_datadir = 1;
- } elsif (/^--h/ || /^-h$/) {
- print "$usage";
- exit 0;
- } elsif (/^--verb/ || /^-v$/) {
- $verbose = 1;
- } elsif (/^--vers/ || /^-V$/) {
- print "$version";
- exit 0;
- } elsif (/^[^-]/) {
- if ($need_datadir) {
- $datadir = $_;
- $need_datadir = 0;
- } else {
- die "$usage" if defined($srcdir);
- # Top level directory of the package being autoscanned.
- $srcdir = $_;
- }
- } else {
- die "$usage";
- }
+ local ($help) = "Try \`$me --help' for more information.";
+
+ local $need_datadir = 0;
+
+ foreach $_ (@ARGV) {
+ if (/^--m[a-z]*=(.*)/) {
+ $datadir = $1;
+ } elsif (/^-m$/) {
+ $need_datadir = 1;
+ } elsif (/^--h/ || /^-h$/) {
+ print "$usage";
+ exit 0;
+ } elsif (/^--verb/ || /^-v$/) {
+ $verbose = 1;
+ } elsif (/^--vers/ || /^-V$/) {
+ print "$version";
+ exit 0;
+ } elsif (/^[^-]/) {
+ if ($need_datadir) {
+ $datadir = $_;
+ $need_datadir = 0;
+ } else {
+ die "$me: too many arguments\n$help" if defined($srcdir);
+ # Top level directory of the package being autoscanned.
+ $srcdir = $_;
+ }
+ } else {
+ die "$me: invalid option $_\n$help";
}
+ }
- die $usage if $need_datadir;
+ die "$me: missing argument to -m\n$help" if $need_datadir;
- $srcdir="." if !defined($srcdir);
+ $srcdir="." if !defined($srcdir);
- print "srcdir=$srcdir\n" if $verbose;
- chdir $srcdir || die "$0: cannot cd to $srcdir: $!\n";
+ print "srcdir=$srcdir\n" if $verbose;
+ chdir $srcdir || die "$me: cannot cd to $srcdir: $!\n";
- open(CONF, ">configure.scan") ||
- die "$0: cannot create configure.scan: $!\n";
+ open(CONF, ">configure.scan") ||
+ die "$me: cannot create configure.scan: $!\n";
}
# Put values in the tables of what to do with each token.
sub init_tables
{
- local($kind, $word, $macro);
-
- # Initialize a table of C keywords (to ignore).
- # Taken from K&R 1st edition p. 180.
- # ANSI C, GNU C, and C++ keywords can introduce portability problems,
- # so don't ignore them.
- foreach $word ('int', 'char', 'float', 'double', 'struct', 'union',
- 'long', 'short', 'unsigned', 'auto', 'extern', 'register',
- 'typedef', 'static', 'goto', 'return', 'sizeof', 'break',
- 'continue', 'if', 'else', 'for', 'do', 'while', 'switch',
- 'case', 'default') {
- $c_keywords{$word} = 0;
- }
-
- # The data file format supports only one line of macros per function.
- # If more than that is required for a common portability problem,
- # a new Autoconf macro should probably be written for that case,
- # instead of duplicating the code in lots of configure.in files.
-
- foreach $kind ('functions', 'headers', 'identifiers', 'programs',
- 'makevars') {
- open(TABLE, "<$datadir/ac$kind") ||
- die "$0: cannot open $datadir/ac$kind: $!\n";
- while (<TABLE>) {
- next if /^\s*$/ || /^\s*#/; # Ignore blank lines and comments.
- ($word, $macro) = split;
- eval "\$$kind" . "_macros{\$word} = \$macro";
- }
- close(TABLE);
+ local($kind, $word, $macro);
+
+ # Initialize a table of C keywords (to ignore).
+ # Taken from K&R 1st edition p. 180.
+ # ANSI C, GNU C, and C++ keywords can introduce portability problems,
+ # so don't ignore them.
+ foreach $word ('int', 'char', 'float', 'double', 'struct', 'union',
+ 'long', 'short', 'unsigned', 'auto', 'extern', 'register',
+ 'typedef', 'static', 'goto', 'return', 'sizeof', 'break',
+ 'continue', 'if', 'else', 'for', 'do', 'while', 'switch',
+ 'case', 'default') {
+ $c_keywords{$word} = 0;
+ }
+
+ # The data file format supports only one line of macros per function.
+ # If more than that is required for a common portability problem,
+ # a new Autoconf macro should probably be written for that case,
+ # instead of duplicating the code in lots of configure.in files.
+
+ foreach $kind ('functions', 'headers', 'identifiers', 'programs',
+ 'makevars') {
+ open(TABLE, "<$datadir/ac$kind") ||
+ die "$me: cannot open $datadir/ac$kind: $!\n";
+ while (<TABLE>) {
+ next if /^\s*$/ || /^\s*#/; # Ignore blank lines and comments.
+ ($word, $macro) = split;
+ eval "\$$kind" . "_macros{\$word} = \$macro";
}
+ close(TABLE);
+ }
}
# Collect names of various kinds of files in the package.
# Called by &find on each file.
sub wanted
{
- if (/^.*\.[chlymC]$/ || /^.*\.cc$/) {
- $name =~ s?^\./??; push(@cfiles, $name);
- }
- elsif (/^[Mm]akefile$/ || /^[Mm]akefile\.in$/ || /^GNUmakefile$/) {
- $name =~ s?^\./??; push(@makefiles, $name);
- }
- elsif (/^.*\.sh$/) {
- $name =~ s?^\./??; push(@shfiles, $name);
- }
+ if (/^.*\.[chlymC]$/ || /^.*\.cc$/) {
+ $name =~ s?^\./??; push(@cfiles, $name);
+ }
+ elsif (/^[Mm]akefile$/ || /^[Mm]akefile\.in$/ || /^GNUmakefile$/) {
+ $name =~ s?^\./??; push(@makefiles, $name);
+ }
+ elsif (/^.*\.sh$/) {
+ $name =~ s?^\./??; push(@shfiles, $name);
+ }
}
# Read through the files and collect lists of tokens in them
# that might create nonportabilities.
sub scan_files
{
- $initfile = $cfiles[0]; # Pick one at random.
+ $initfile = $cfiles[0]; # Pick one at random.
+
+ if ($verbose) {
+ print "cfiles:", join(" ", @cfiles), "\n";
+ print "makefiles:", join(" ", @makefiles), "\n";
+ print "shfiles:", join(" ", @shfiles), "\n";
+ }
+
+ foreach $file (@cfiles) {
+ $programs{"cc"}++;
+ &scan_c_file($file);
+ }
+
+ foreach $file (@makefiles) {
+ &scan_makefile($file);
+ }
+
+ foreach $file (@shfiles) {
+ &scan_sh_file($file);
+ }
+}
- if ($verbose) {
- print "cfiles:", join(" ", @cfiles), "\n";
- print "makefiles:", join(" ", @makefiles), "\n";
- print "shfiles:", join(" ", @shfiles), "\n";
+sub scan_c_file
+{
+ local($file) = @_;
+ local($in_comment) = 0; # Nonzero if in a multiline comment.
+
+ open(CFILE, "<$file") || die "$me: cannot open $file: $!\n";
+ while (<CFILE>) {
+ # Strip out comments, approximately.
+ # Ending on this line.
+ if ($in_comment && m,\*/,) {
+ s,.*\*/,,;
+ $in_comment = 0;
}
-
- foreach $file (@cfiles) {
- $programs{"cc"}++;
- &scan_c_file($file);
+ # All on one line.
+ s,/\*.*\*/,,g;
+ # Starting on this line.
+ if (m,/\*,) {
+ $in_comment = 1;
}
+ # Continuing on this line.
+ next if $in_comment;
- foreach $file (@makefiles) {
- &scan_makefile($file);
+ # Preprocessor directives.
+ if (/^\s*\#\s*include\s*<([^>]*)>/) {
+ $headers{$1}++;
}
+ # Ignore other preprocessor directives.
+ next if /^\s*\#/;
- foreach $file (@shfiles) {
- &scan_sh_file($file);
- }
-}
+ # Remove string and character constants.
+ s,\"[^\"]*\",,g;
+ s,\'[^\']*\',,g;
-sub scan_c_file
-{
- local($file) = @_;
- local($in_comment) = 0; # Nonzero if in a multiline comment.
-
- open(CFILE, "<$file") || die "$0: cannot open $file: $!\n";
- while (<CFILE>) {
- # Strip out comments, approximately.
- # Ending on this line.
- if ($in_comment && m,\*/,) {
- s,.*\*/,,;
- $in_comment = 0;
- }
- # All on one line.
- s,/\*.*\*/,,g;
- # Starting on this line.
- if (m,/\*,) {
- $in_comment = 1;
- }
- # Continuing on this line.
- next if $in_comment;
-
- # Preprocessor directives.
- if (/^\s*#\s*include\s*<([^>]*)>/) {
- $headers{$1}++;
- }
- # Ignore other preprocessor directives.
- next if /^\s*#/;
-
- # Remove string and character constants.
- s,\"[^\"]*\",,g;
- s,\'[^\']*\',,g;
-
- # Tokens in the code.
- # Maybe we should ignore function definitions (in column 0)?
- while (s/\W([a-zA-Z_]\w*)\s*\(/ /) {
- $functions{$1}++ if !defined($c_keywords{$1});
- }
- while (s/\W([a-zA-Z_]\w*)\W/ /) {
- $identifiers{$1}++ if !defined($c_keywords{$1});
- }
+ # Tokens in the code.
+ # Maybe we should ignore function definitions (in column 0)?
+ while (s/\W([a-zA-Z_]\w*)\s*\(/ /) {
+ $functions{$1}++ if !defined($c_keywords{$1});
+ }
+ while (s/\W([a-zA-Z_]\w*)\W/ /) {
+ $identifiers{$1}++ if !defined($c_keywords{$1});
}
- close(CFILE);
+ }
+ close(CFILE);
- if ($verbose) {
- local($word);
+ if ($verbose) {
+ local($word);
- print "\n$file functions:\n";
- foreach $word (sort keys %functions) {
- print "$word $functions{$word}\n";
- }
+ print "\n$file functions:\n";
+ foreach $word (sort keys %functions) {
+ print "$word $functions{$word}\n";
+ }
- print "\n$file identifiers:\n";
- foreach $word (sort keys %identifiers) {
- print "$word $identifiers{$word}\n";
- }
+ print "\n$file identifiers:\n";
+ foreach $word (sort keys %identifiers) {
+ print "$word $identifiers{$word}\n";
+ }
- print "\n$file headers:\n";
- foreach $word (sort keys %headers) {
- print "$word $headers{$word}\n";
- }
+ print "\n$file headers:\n";
+ foreach $word (sort keys %headers) {
+ print "$word $headers{$word}\n";
}
+ }
}
sub scan_makefile
{
- local($file) = @_;
-
- open(MFILE, "<$file") || die "$0: cannot open $file: $!\n";
- while (<MFILE>) {
- # Strip out comments and variable references.
- s/#.*//;
- s/\$\([^\)]*\)//g;
- s/\${[^\}]*}//g;
- s/@[^@]*@//g;
-
- # Variable assignments.
- while (s/\W([a-zA-Z_]\w*)\s*=/ /) {
- $makevars{$1}++;
- }
- # Libraries.
- while (s/\W-l([a-zA-Z_]\w*)\W/ /) {
- $libraries{$1}++;
- }
- # Tokens in the code.
- while (s/\W([a-zA-Z_]\w*)\W/ /) {
- $programs{$1}++;
- }
+ local($file) = @_;
+
+ open(MFILE, "<$file") || die "$me: cannot open $file: $!\n";
+ while (<MFILE>) {
+ # Strip out comments and variable references.
+ s/#.*//;
+ s/\$\([^\)]*\)//g;
+ s/\${[^\}]*}//g;
+ s/@[^@]*@//g;
+
+ # Variable assignments.
+ while (s/\W([a-zA-Z_]\w*)\s*=/ /) {
+ $makevars{$1}++;
+ }
+ # Libraries.
+ while (s/\W-l([a-zA-Z_]\w*)\W/ /) {
+ $libraries{$1}++;
}
- close(MFILE);
+ # Tokens in the code.
+ while (s/\W([a-zA-Z_]\w*)\W/ /) {
+ $programs{$1}++;
+ }
+ }
+ close(MFILE);
- if ($verbose) {
- local($word);
+ if ($verbose) {
+ local($word);
- print "\n$file makevars:\n";
- foreach $word (sort keys %makevars) {
- print "$word $makevars{$word}\n";
- }
+ print "\n$file makevars:\n";
+ foreach $word (sort keys %makevars) {
+ print "$word $makevars{$word}\n";
+ }
- print "\n$file libraries:\n";
- foreach $word (sort keys %libraries) {
- print "$word $libraries{$word}\n";
- }
+ print "\n$file libraries:\n";
+ foreach $word (sort keys %libraries) {
+ print "$word $libraries{$word}\n";
+ }
- print "\n$file programs:\n";
- foreach $word (sort keys %programs) {
- print "$word $programs{$word}\n";
- }
+ print "\n$file programs:\n";
+ foreach $word (sort keys %programs) {
+ print "$word $programs{$word}\n";
}
+ }
}
sub scan_sh_file
{
- local($file) = @_;
-
- open(MFILE, "<$file") || die "$0: cannot open $file: $!\n";
- while (<MFILE>) {
- # Strip out comments and variable references.
- s/#.*//;
- s/\${[^\}]*}//g;
- s/@[^@]*@//g;
-
- # Tokens in the code.
- while (s/\W([a-zA-Z_]\w*)\W/ /) {
- $programs{$1}++;
- }
+ local($file) = @_;
+
+ open(MFILE, "<$file") || die "$me: cannot open $file: $!\n";
+ while (<MFILE>) {
+ # Strip out comments and variable references.
+ s/#.*//;
+ s/\${[^\}]*}//g;
+ s/@[^@]*@//g;
+
+ # Tokens in the code.
+ while (s/\W([a-zA-Z_]\w*)\W/ /) {
+ $programs{$1}++;
}
- close(MFILE);
+ }
+ close(MFILE);
- if ($verbose) {
- local($word);
+ if ($verbose) {
+ local($word);
- print "\n$file programs:\n";
- foreach $word (sort keys %programs) {
- print "$word $programs{$word}\n";
- }
+ print "\n$file programs:\n";
+ foreach $word (sort keys %programs) {
+ print "$word $programs{$word}\n";
}
+ }
}
# Print a configure.in.
sub output
{
- local (%unique_makefiles);
+ local (%unique_makefiles);
- print CONF "dnl Process this file with autoconf to produce a configure script.\n";
- print CONF "AC_INIT($initfile)\n";
+ print CONF "# Process this file with autoconf to produce a configure script.\n";
+ print CONF "AC_INIT($initfile)\n";
- &output_programs;
- &output_headers;
- &output_identifiers;
- &output_functions;
+ &output_programs;
+ &output_headers;
+ &output_identifiers;
+ &output_functions;
- # Change DIR/Makefile.in to DIR/Makefile.
- foreach $_ (@makefiles) {
- s/\.in$//;
- $unique_makefiles{$_}++;
- }
- print CONF "\nAC_OUTPUT(", join(" ", keys(%unique_makefiles)), ")\n";
+ # Change DIR/Makefile.in to DIR/Makefile.
+ foreach $_ (@makefiles) {
+ s/\.in$//;
+ $unique_makefiles{$_}++;
+ }
+ print CONF "\nAC_OUTPUT(", join(" ", keys(%unique_makefiles)), ")\n";
- close CONF;
+ close CONF;
}
# Print Autoconf macro $1 if it's not undef and hasn't been printed already.
sub print_unique
{
- local($macro) = @_;
+ local($macro) = @_;
- if (defined($macro) && !defined($printed{$macro})) {
- print CONF "$macro\n";
- $printed{$macro} = 1;
- }
+ if (defined($macro) && !defined($printed{$macro})) {
+ print CONF "$macro\n";
+ $printed{$macro} = 1;
+ }
}
sub output_programs
{
- local ($word);
-
- print CONF "\ndnl Checks for programs.\n";
- foreach $word (sort keys %programs) {
- &print_unique($programs_macros{$word});
- }
- foreach $word (sort keys %makevars) {
- &print_unique($makevars_macros{$word});
- }
- print CONF "\ndnl Checks for libraries.\n";
- foreach $word (sort keys %libraries) {
- print CONF "dnl Replace `\main\' with a function in -l$word:\n";
- print CONF "AC_CHECK_LIB($word, main)\n";
- }
+ local ($word);
+
+ print CONF "\n# Checks for programs.\n";
+ foreach $word (sort keys %programs) {
+ &print_unique($programs_macros{$word});
+ }
+ foreach $word (sort keys %makevars) {
+ &print_unique($makevars_macros{$word});
+ }
+ print CONF "\n# Checks for libraries.\n";
+ foreach $word (sort keys %libraries) {
+ print CONF "# Replace `\main\' with a function in -l$word:\n";
+ print CONF "AC_CHECK_LIB($word, main)\n";
+ }
}
sub output_headers
{
- local ($word);
-
- print CONF "\ndnl Checks for header files.\n";
- foreach $word (sort keys %headers) {
- if (defined($headers_macros{$word}) &&
- $headers_macros{$word} eq 'AC_CHECK_HEADERS') {
- push(@have_headers, $word);
- } else {
- &print_unique($headers_macros{$word});
- }
+ local ($word);
+
+ print CONF "\n# Checks for header files.\n";
+ foreach $word (sort keys %headers) {
+ if (defined($headers_macros{$word}) &&
+ $headers_macros{$word} eq 'AC_CHECK_HEADERS') {
+ push(@have_headers, $word);
+ } else {
+ &print_unique($headers_macros{$word});
}
- print CONF "AC_CHECK_HEADERS(" . join(' ', sort(@have_headers)) . ")\n"
- if defined(@have_headers);
+ }
+ print CONF "AC_CHECK_HEADERS(" . join(' ', sort(@have_headers)) . ")\n"
+ if defined(@have_headers);
}
sub output_identifiers
{
- local ($word);
+ local ($word);
- print CONF "\ndnl Checks for typedefs, structures, and compiler characteristics.\n";
- foreach $word (sort keys %identifiers) {
- &print_unique($identifiers_macros{$word});
- }
+ print CONF "\n# Checks for typedefs, structures, and compiler characteristics.\n";
+ foreach $word (sort keys %identifiers) {
+ &print_unique($identifiers_macros{$word});
+ }
}
sub output_functions
{
- local ($word);
-
- print CONF "\ndnl Checks for library functions.\n";
- foreach $word (sort keys %functions) {
- if (defined($functions_macros{$word}) &&
- $functions_macros{$word} eq 'AC_CHECK_FUNCS') {
- push(@have_funcs, $word);
- } else {
- &print_unique($functions_macros{$word});
- }
+ local ($word);
+
+ print CONF "\n# Checks for library functions.\n";
+ foreach $word (sort keys %functions) {
+ if (defined($functions_macros{$word}) &&
+ $functions_macros{$word} eq 'AC_CHECK_FUNCS') {
+ push(@have_funcs, $word);
+ } else {
+ &print_unique($functions_macros{$word});
}
- print CONF "AC_CHECK_FUNCS(" . join(' ', sort(@have_funcs)) . ")\n"
- if defined(@have_funcs);
+ }
+ print CONF "AC_CHECK_FUNCS(" . join(' ', sort(@have_funcs)) . ")\n"
+ if defined(@have_funcs);
}
require "find.pl";
$datadir = $ENV{"AC_MACRODIR"} || "@datadir@";
+($me = $0) =~ s,.*/,,;
$verbose = 0;
+
# Reference these variables to pacify perl -w.
undef %identifiers_macros;
undef %makevars_macros;
# Process any command line arguments.
sub parse_args
{
- local ($usage) = <<'EOD';
-Usage: autoscan [OPTION] ... [SRCDIR]
+ # There are a couple of useless `\' below. They are used to have
+ # Emacs fontify properly.
+ local ($usage) = <<EOD;
+Usage: $0 [OPTION] ... [SRCDIR]
Examine source files in the directory tree rooted at SRCDIR, or the
current directory if none is given. Search the source files for
-common portability problems and create a file `configure.scan' which
-is a preliminary `configure.in' for that package.
+common portability problems and create a file \`configure.scan' which
+is a preliminary \`configure.in' for that package.
-h, --help print this help, then exit
-V, --version print version number, then exit
- -m, --macrodir=DIR directory storing data files
-v, --verbose verbosely report processing
+ -m, --macrodir=DIR directory storing data files
-Report bugs to <bug-autoconf@gnu.org>.
+Report bugs to <bug-autoconf\@gnu.org>.
EOD
- local ($version) = <<'EOD';
+ local ($version) = <<'EOD';
autoscan (GNU @PACKAGE@) @VERSION@
Written by David J. MacKenzie.
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
EOD
- local $need_datadir = 0;
-
- foreach $_ (@ARGV) {
- if (/^--m[a-z]*=(.*)/) {
- $datadir = $1;
- } elsif (/^-m$/) {
- $need_datadir = 1;
- } elsif (/^--h/ || /^-h$/) {
- print "$usage";
- exit 0;
- } elsif (/^--verb/ || /^-v$/) {
- $verbose = 1;
- } elsif (/^--vers/ || /^-V$/) {
- print "$version";
- exit 0;
- } elsif (/^[^-]/) {
- if ($need_datadir) {
- $datadir = $_;
- $need_datadir = 0;
- } else {
- die "$usage" if defined($srcdir);
- # Top level directory of the package being autoscanned.
- $srcdir = $_;
- }
- } else {
- die "$usage";
- }
+ local ($help) = "Try \`$me --help' for more information.";
+
+ local $need_datadir = 0;
+
+ foreach $_ (@ARGV) {
+ if (/^--m[a-z]*=(.*)/) {
+ $datadir = $1;
+ } elsif (/^-m$/) {
+ $need_datadir = 1;
+ } elsif (/^--h/ || /^-h$/) {
+ print "$usage";
+ exit 0;
+ } elsif (/^--verb/ || /^-v$/) {
+ $verbose = 1;
+ } elsif (/^--vers/ || /^-V$/) {
+ print "$version";
+ exit 0;
+ } elsif (/^[^-]/) {
+ if ($need_datadir) {
+ $datadir = $_;
+ $need_datadir = 0;
+ } else {
+ die "$me: too many arguments\n$help" if defined($srcdir);
+ # Top level directory of the package being autoscanned.
+ $srcdir = $_;
+ }
+ } else {
+ die "$me: invalid option $_\n$help";
}
+ }
- die $usage if $need_datadir;
+ die "$me: missing argument to -m\n$help" if $need_datadir;
- $srcdir="." if !defined($srcdir);
+ $srcdir="." if !defined($srcdir);
- print "srcdir=$srcdir\n" if $verbose;
- chdir $srcdir || die "$0: cannot cd to $srcdir: $!\n";
+ print "srcdir=$srcdir\n" if $verbose;
+ chdir $srcdir || die "$me: cannot cd to $srcdir: $!\n";
- open(CONF, ">configure.scan") ||
- die "$0: cannot create configure.scan: $!\n";
+ open(CONF, ">configure.scan") ||
+ die "$me: cannot create configure.scan: $!\n";
}
# Put values in the tables of what to do with each token.
sub init_tables
{
- local($kind, $word, $macro);
-
- # Initialize a table of C keywords (to ignore).
- # Taken from K&R 1st edition p. 180.
- # ANSI C, GNU C, and C++ keywords can introduce portability problems,
- # so don't ignore them.
- foreach $word ('int', 'char', 'float', 'double', 'struct', 'union',
- 'long', 'short', 'unsigned', 'auto', 'extern', 'register',
- 'typedef', 'static', 'goto', 'return', 'sizeof', 'break',
- 'continue', 'if', 'else', 'for', 'do', 'while', 'switch',
- 'case', 'default') {
- $c_keywords{$word} = 0;
- }
-
- # The data file format supports only one line of macros per function.
- # If more than that is required for a common portability problem,
- # a new Autoconf macro should probably be written for that case,
- # instead of duplicating the code in lots of configure.in files.
-
- foreach $kind ('functions', 'headers', 'identifiers', 'programs',
- 'makevars') {
- open(TABLE, "<$datadir/ac$kind") ||
- die "$0: cannot open $datadir/ac$kind: $!\n";
- while (<TABLE>) {
- next if /^\s*$/ || /^\s*#/; # Ignore blank lines and comments.
- ($word, $macro) = split;
- eval "\$$kind" . "_macros{\$word} = \$macro";
- }
- close(TABLE);
+ local($kind, $word, $macro);
+
+ # Initialize a table of C keywords (to ignore).
+ # Taken from K&R 1st edition p. 180.
+ # ANSI C, GNU C, and C++ keywords can introduce portability problems,
+ # so don't ignore them.
+ foreach $word ('int', 'char', 'float', 'double', 'struct', 'union',
+ 'long', 'short', 'unsigned', 'auto', 'extern', 'register',
+ 'typedef', 'static', 'goto', 'return', 'sizeof', 'break',
+ 'continue', 'if', 'else', 'for', 'do', 'while', 'switch',
+ 'case', 'default') {
+ $c_keywords{$word} = 0;
+ }
+
+ # The data file format supports only one line of macros per function.
+ # If more than that is required for a common portability problem,
+ # a new Autoconf macro should probably be written for that case,
+ # instead of duplicating the code in lots of configure.in files.
+
+ foreach $kind ('functions', 'headers', 'identifiers', 'programs',
+ 'makevars') {
+ open(TABLE, "<$datadir/ac$kind") ||
+ die "$me: cannot open $datadir/ac$kind: $!\n";
+ while (<TABLE>) {
+ next if /^\s*$/ || /^\s*#/; # Ignore blank lines and comments.
+ ($word, $macro) = split;
+ eval "\$$kind" . "_macros{\$word} = \$macro";
}
+ close(TABLE);
+ }
}
# Collect names of various kinds of files in the package.
# Called by &find on each file.
sub wanted
{
- if (/^.*\.[chlymC]$/ || /^.*\.cc$/) {
- $name =~ s?^\./??; push(@cfiles, $name);
- }
- elsif (/^[Mm]akefile$/ || /^[Mm]akefile\.in$/ || /^GNUmakefile$/) {
- $name =~ s?^\./??; push(@makefiles, $name);
- }
- elsif (/^.*\.sh$/) {
- $name =~ s?^\./??; push(@shfiles, $name);
- }
+ if (/^.*\.[chlymC]$/ || /^.*\.cc$/) {
+ $name =~ s?^\./??; push(@cfiles, $name);
+ }
+ elsif (/^[Mm]akefile$/ || /^[Mm]akefile\.in$/ || /^GNUmakefile$/) {
+ $name =~ s?^\./??; push(@makefiles, $name);
+ }
+ elsif (/^.*\.sh$/) {
+ $name =~ s?^\./??; push(@shfiles, $name);
+ }
}
# Read through the files and collect lists of tokens in them
# that might create nonportabilities.
sub scan_files
{
- $initfile = $cfiles[0]; # Pick one at random.
+ $initfile = $cfiles[0]; # Pick one at random.
+
+ if ($verbose) {
+ print "cfiles:", join(" ", @cfiles), "\n";
+ print "makefiles:", join(" ", @makefiles), "\n";
+ print "shfiles:", join(" ", @shfiles), "\n";
+ }
+
+ foreach $file (@cfiles) {
+ $programs{"cc"}++;
+ &scan_c_file($file);
+ }
+
+ foreach $file (@makefiles) {
+ &scan_makefile($file);
+ }
+
+ foreach $file (@shfiles) {
+ &scan_sh_file($file);
+ }
+}
- if ($verbose) {
- print "cfiles:", join(" ", @cfiles), "\n";
- print "makefiles:", join(" ", @makefiles), "\n";
- print "shfiles:", join(" ", @shfiles), "\n";
+sub scan_c_file
+{
+ local($file) = @_;
+ local($in_comment) = 0; # Nonzero if in a multiline comment.
+
+ open(CFILE, "<$file") || die "$me: cannot open $file: $!\n";
+ while (<CFILE>) {
+ # Strip out comments, approximately.
+ # Ending on this line.
+ if ($in_comment && m,\*/,) {
+ s,.*\*/,,;
+ $in_comment = 0;
}
-
- foreach $file (@cfiles) {
- $programs{"cc"}++;
- &scan_c_file($file);
+ # All on one line.
+ s,/\*.*\*/,,g;
+ # Starting on this line.
+ if (m,/\*,) {
+ $in_comment = 1;
}
+ # Continuing on this line.
+ next if $in_comment;
- foreach $file (@makefiles) {
- &scan_makefile($file);
+ # Preprocessor directives.
+ if (/^\s*\#\s*include\s*<([^>]*)>/) {
+ $headers{$1}++;
}
+ # Ignore other preprocessor directives.
+ next if /^\s*\#/;
- foreach $file (@shfiles) {
- &scan_sh_file($file);
- }
-}
+ # Remove string and character constants.
+ s,\"[^\"]*\",,g;
+ s,\'[^\']*\',,g;
-sub scan_c_file
-{
- local($file) = @_;
- local($in_comment) = 0; # Nonzero if in a multiline comment.
-
- open(CFILE, "<$file") || die "$0: cannot open $file: $!\n";
- while (<CFILE>) {
- # Strip out comments, approximately.
- # Ending on this line.
- if ($in_comment && m,\*/,) {
- s,.*\*/,,;
- $in_comment = 0;
- }
- # All on one line.
- s,/\*.*\*/,,g;
- # Starting on this line.
- if (m,/\*,) {
- $in_comment = 1;
- }
- # Continuing on this line.
- next if $in_comment;
-
- # Preprocessor directives.
- if (/^\s*#\s*include\s*<([^>]*)>/) {
- $headers{$1}++;
- }
- # Ignore other preprocessor directives.
- next if /^\s*#/;
-
- # Remove string and character constants.
- s,\"[^\"]*\",,g;
- s,\'[^\']*\',,g;
-
- # Tokens in the code.
- # Maybe we should ignore function definitions (in column 0)?
- while (s/\W([a-zA-Z_]\w*)\s*\(/ /) {
- $functions{$1}++ if !defined($c_keywords{$1});
- }
- while (s/\W([a-zA-Z_]\w*)\W/ /) {
- $identifiers{$1}++ if !defined($c_keywords{$1});
- }
+ # Tokens in the code.
+ # Maybe we should ignore function definitions (in column 0)?
+ while (s/\W([a-zA-Z_]\w*)\s*\(/ /) {
+ $functions{$1}++ if !defined($c_keywords{$1});
+ }
+ while (s/\W([a-zA-Z_]\w*)\W/ /) {
+ $identifiers{$1}++ if !defined($c_keywords{$1});
}
- close(CFILE);
+ }
+ close(CFILE);
- if ($verbose) {
- local($word);
+ if ($verbose) {
+ local($word);
- print "\n$file functions:\n";
- foreach $word (sort keys %functions) {
- print "$word $functions{$word}\n";
- }
+ print "\n$file functions:\n";
+ foreach $word (sort keys %functions) {
+ print "$word $functions{$word}\n";
+ }
- print "\n$file identifiers:\n";
- foreach $word (sort keys %identifiers) {
- print "$word $identifiers{$word}\n";
- }
+ print "\n$file identifiers:\n";
+ foreach $word (sort keys %identifiers) {
+ print "$word $identifiers{$word}\n";
+ }
- print "\n$file headers:\n";
- foreach $word (sort keys %headers) {
- print "$word $headers{$word}\n";
- }
+ print "\n$file headers:\n";
+ foreach $word (sort keys %headers) {
+ print "$word $headers{$word}\n";
}
+ }
}
sub scan_makefile
{
- local($file) = @_;
-
- open(MFILE, "<$file") || die "$0: cannot open $file: $!\n";
- while (<MFILE>) {
- # Strip out comments and variable references.
- s/#.*//;
- s/\$\([^\)]*\)//g;
- s/\${[^\}]*}//g;
- s/@[^@]*@//g;
-
- # Variable assignments.
- while (s/\W([a-zA-Z_]\w*)\s*=/ /) {
- $makevars{$1}++;
- }
- # Libraries.
- while (s/\W-l([a-zA-Z_]\w*)\W/ /) {
- $libraries{$1}++;
- }
- # Tokens in the code.
- while (s/\W([a-zA-Z_]\w*)\W/ /) {
- $programs{$1}++;
- }
+ local($file) = @_;
+
+ open(MFILE, "<$file") || die "$me: cannot open $file: $!\n";
+ while (<MFILE>) {
+ # Strip out comments and variable references.
+ s/#.*//;
+ s/\$\([^\)]*\)//g;
+ s/\${[^\}]*}//g;
+ s/@[^@]*@//g;
+
+ # Variable assignments.
+ while (s/\W([a-zA-Z_]\w*)\s*=/ /) {
+ $makevars{$1}++;
+ }
+ # Libraries.
+ while (s/\W-l([a-zA-Z_]\w*)\W/ /) {
+ $libraries{$1}++;
}
- close(MFILE);
+ # Tokens in the code.
+ while (s/\W([a-zA-Z_]\w*)\W/ /) {
+ $programs{$1}++;
+ }
+ }
+ close(MFILE);
- if ($verbose) {
- local($word);
+ if ($verbose) {
+ local($word);
- print "\n$file makevars:\n";
- foreach $word (sort keys %makevars) {
- print "$word $makevars{$word}\n";
- }
+ print "\n$file makevars:\n";
+ foreach $word (sort keys %makevars) {
+ print "$word $makevars{$word}\n";
+ }
- print "\n$file libraries:\n";
- foreach $word (sort keys %libraries) {
- print "$word $libraries{$word}\n";
- }
+ print "\n$file libraries:\n";
+ foreach $word (sort keys %libraries) {
+ print "$word $libraries{$word}\n";
+ }
- print "\n$file programs:\n";
- foreach $word (sort keys %programs) {
- print "$word $programs{$word}\n";
- }
+ print "\n$file programs:\n";
+ foreach $word (sort keys %programs) {
+ print "$word $programs{$word}\n";
}
+ }
}
sub scan_sh_file
{
- local($file) = @_;
-
- open(MFILE, "<$file") || die "$0: cannot open $file: $!\n";
- while (<MFILE>) {
- # Strip out comments and variable references.
- s/#.*//;
- s/\${[^\}]*}//g;
- s/@[^@]*@//g;
-
- # Tokens in the code.
- while (s/\W([a-zA-Z_]\w*)\W/ /) {
- $programs{$1}++;
- }
+ local($file) = @_;
+
+ open(MFILE, "<$file") || die "$me: cannot open $file: $!\n";
+ while (<MFILE>) {
+ # Strip out comments and variable references.
+ s/#.*//;
+ s/\${[^\}]*}//g;
+ s/@[^@]*@//g;
+
+ # Tokens in the code.
+ while (s/\W([a-zA-Z_]\w*)\W/ /) {
+ $programs{$1}++;
}
- close(MFILE);
+ }
+ close(MFILE);
- if ($verbose) {
- local($word);
+ if ($verbose) {
+ local($word);
- print "\n$file programs:\n";
- foreach $word (sort keys %programs) {
- print "$word $programs{$word}\n";
- }
+ print "\n$file programs:\n";
+ foreach $word (sort keys %programs) {
+ print "$word $programs{$word}\n";
}
+ }
}
# Print a configure.in.
sub output
{
- local (%unique_makefiles);
+ local (%unique_makefiles);
- print CONF "dnl Process this file with autoconf to produce a configure script.\n";
- print CONF "AC_INIT($initfile)\n";
+ print CONF "# Process this file with autoconf to produce a configure script.\n";
+ print CONF "AC_INIT($initfile)\n";
- &output_programs;
- &output_headers;
- &output_identifiers;
- &output_functions;
+ &output_programs;
+ &output_headers;
+ &output_identifiers;
+ &output_functions;
- # Change DIR/Makefile.in to DIR/Makefile.
- foreach $_ (@makefiles) {
- s/\.in$//;
- $unique_makefiles{$_}++;
- }
- print CONF "\nAC_OUTPUT(", join(" ", keys(%unique_makefiles)), ")\n";
+ # Change DIR/Makefile.in to DIR/Makefile.
+ foreach $_ (@makefiles) {
+ s/\.in$//;
+ $unique_makefiles{$_}++;
+ }
+ print CONF "\nAC_OUTPUT(", join(" ", keys(%unique_makefiles)), ")\n";
- close CONF;
+ close CONF;
}
# Print Autoconf macro $1 if it's not undef and hasn't been printed already.
sub print_unique
{
- local($macro) = @_;
+ local($macro) = @_;
- if (defined($macro) && !defined($printed{$macro})) {
- print CONF "$macro\n";
- $printed{$macro} = 1;
- }
+ if (defined($macro) && !defined($printed{$macro})) {
+ print CONF "$macro\n";
+ $printed{$macro} = 1;
+ }
}
sub output_programs
{
- local ($word);
-
- print CONF "\ndnl Checks for programs.\n";
- foreach $word (sort keys %programs) {
- &print_unique($programs_macros{$word});
- }
- foreach $word (sort keys %makevars) {
- &print_unique($makevars_macros{$word});
- }
- print CONF "\ndnl Checks for libraries.\n";
- foreach $word (sort keys %libraries) {
- print CONF "dnl Replace `\main\' with a function in -l$word:\n";
- print CONF "AC_CHECK_LIB($word, main)\n";
- }
+ local ($word);
+
+ print CONF "\n# Checks for programs.\n";
+ foreach $word (sort keys %programs) {
+ &print_unique($programs_macros{$word});
+ }
+ foreach $word (sort keys %makevars) {
+ &print_unique($makevars_macros{$word});
+ }
+ print CONF "\n# Checks for libraries.\n";
+ foreach $word (sort keys %libraries) {
+ print CONF "# Replace `\main\' with a function in -l$word:\n";
+ print CONF "AC_CHECK_LIB($word, main)\n";
+ }
}
sub output_headers
{
- local ($word);
-
- print CONF "\ndnl Checks for header files.\n";
- foreach $word (sort keys %headers) {
- if (defined($headers_macros{$word}) &&
- $headers_macros{$word} eq 'AC_CHECK_HEADERS') {
- push(@have_headers, $word);
- } else {
- &print_unique($headers_macros{$word});
- }
+ local ($word);
+
+ print CONF "\n# Checks for header files.\n";
+ foreach $word (sort keys %headers) {
+ if (defined($headers_macros{$word}) &&
+ $headers_macros{$word} eq 'AC_CHECK_HEADERS') {
+ push(@have_headers, $word);
+ } else {
+ &print_unique($headers_macros{$word});
}
- print CONF "AC_CHECK_HEADERS(" . join(' ', sort(@have_headers)) . ")\n"
- if defined(@have_headers);
+ }
+ print CONF "AC_CHECK_HEADERS(" . join(' ', sort(@have_headers)) . ")\n"
+ if defined(@have_headers);
}
sub output_identifiers
{
- local ($word);
+ local ($word);
- print CONF "\ndnl Checks for typedefs, structures, and compiler characteristics.\n";
- foreach $word (sort keys %identifiers) {
- &print_unique($identifiers_macros{$word});
- }
+ print CONF "\n# Checks for typedefs, structures, and compiler characteristics.\n";
+ foreach $word (sort keys %identifiers) {
+ &print_unique($identifiers_macros{$word});
+ }
}
sub output_functions
{
- local ($word);
-
- print CONF "\ndnl Checks for library functions.\n";
- foreach $word (sort keys %functions) {
- if (defined($functions_macros{$word}) &&
- $functions_macros{$word} eq 'AC_CHECK_FUNCS') {
- push(@have_funcs, $word);
- } else {
- &print_unique($functions_macros{$word});
- }
+ local ($word);
+
+ print CONF "\n# Checks for library functions.\n";
+ foreach $word (sort keys %functions) {
+ if (defined($functions_macros{$word}) &&
+ $functions_macros{$word} eq 'AC_CHECK_FUNCS') {
+ push(@have_funcs, $word);
+ } else {
+ &print_unique($functions_macros{$word});
}
- print CONF "AC_CHECK_FUNCS(" . join(' ', sort(@have_funcs)) . ")\n"
- if defined(@have_funcs);
+ }
+ print CONF "AC_CHECK_FUNCS(" . join(' ', sort(@have_funcs)) . ")\n"
+ if defined(@have_funcs);
}
.\" DO NOT MODIFY THIS FILE! It was generated by help2man 1.020.
-.TH AUTOSCAN "1" "March 2000" "GNU autoconf 2.14a" FSF
+.TH AUTOSCAN "1" "April 2000" "GNU autoconf 2.14a" FSF
.SH NAME
autoscan \- Generate a preliminary configure.in
.SH SYNOPSIS
\fB\-V\fR, \fB\-\-version\fR
print version number, then exit
.TP
-\fB\-m\fR, \fB\-\-macrodir\fR=\fIDIR\fR
-directory storing data files
-.TP
\fB\-v\fR, \fB\-\-verbose\fR
verbosely report processing
+.TP
+\fB\-m\fR, \fB\-\-macrodir\fR=\fIDIR\fR
+directory storing data files
.SH AUTHOR
Written by David J. MacKenzie.
.SH "REPORTING BUGS"
projects / thirdparty / autoconf.git / commitdiff
