rcb2make.pl

   1 #!/usr/bin/env perl
   2
   3 # program to automatically generate an optimized Makefile from an rcb file
   4 # it is optimized because it only compiles *used* stuff
   5 # use like this: cat myprog.rcb | rcb2make myprog > Makefile
   6
   7 use strict;
   8 use warnings;
   9
  10 my $progname = $ARGV[0] or
  11         die ("pass name of executable the makefile has to build");
  12
  13 my @libs;
  14 my @c;
  15
  16 while(<STDIN>) {
  17         chomp;
  18         if(/^DEP ([\w_\-\/\.]+)$/) {
  19                 push @c, $1;
  20         } elsif (/^LINK ([\w_\-\/\.]+)$/) {
  21                 push @libs, $1;
  22         }
  23 }
  24
  25 sub make_list {
  26         my @a = @_;
  27         my $res = "";
  28         for(@a) {
  29                 $res .= " \\\n" . $_;
  30         }
  31         return $res;
  32 }
  33
  34 my $mak_template = << 'EOF';
  35 prefix = /usr/local
  36 bindir = $(prefix)/bin
  37
  38 PROG = #PROG#
  39 SRCS = #SRCS#
  40 LIBS = #LIBS#
  41 OBJS = $(SRCS:.c=.o)
  42
  43 CFLAGS += -Wall -D_GNU_SOURCE -std=c99
  44
  45 -include config.mak
  46
  47 all: $(PROG)
  48
  49 install: $(PROG)
  50         install -d $(DESTDIR)/$(bindir)
  51         install -D -m 755 $(PROG) $(DESTDIR)/$(bindir)/
  52
  53 clean:
  54         rm -f $(PROG)
  55         rm -f $(OBJS)
  56
  57 %.o: %.c
  58         $(CC) $(CPPFLAGS) $(CFLAGS) $(INC) $(PIC) -c -o $@ $<
  59
  60 $(PROG): $(OBJS)
  61          $(CC) $(LDFLAGS) $(OBJS) $(LIBS) -o $@
  62
  63 .PHONY: all clean install
  64
  65 EOF
  66
  67 $mak_template =~ s/#PROG#/$progname/;
  68 my $lc = make_list(@c);
  69 $mak_template =~ s/#SRCS#/$lc/;
  70 my $ll = make_list(@libs);
  71 $mak_template =~ s/#LIBS#/$ll/;
  72
  73 print $mak_template;
  74