Support building via autoconf and automake. mkfiles.pl now outputs a

Makefile.am, and there's a new mkauto.sh which builds a corresponding
configure script.

The old makefile has been renamed from 'Makefile' to 'Makefile.gtk',
indicating that the intended new _default_ approach is to use the
autoconf world. Makefile.gtk is provided as an emergency fallback in
case anything fails with the new stuff that used to work with it.

The new configure script does not support the same $(BINPREFIX) system
as the old Makefile did. However, as I understand it, it should be
possible to configure using --program-prefix="sgt-" (for example) and
then the binaries should all be renamed appropriately at install time.

The Makefile.am is quite painful. The Puzzles codebase relies heavily
on compiling individual object files multiple times with different the
cpp flags per build deliverable (program or library) and not per
source file. Solution: anything built with non-default compile options
has to go in its own little library. But that doesn't work either in
the general case, because as soon as you have more than one such
library linked into an application, Unix ld semantics bite you if the
objects in the libraries both refer to each other. So I ended up
building all those little libraries but not _using_ them - instead the
link commands for the programs needing those objects refer to the
objects directly, under the silly names that automake gives them.
(That's less fragile than it sounds, because it does _document_ the
names of the intermediate object files. But still, yuck.)

[originally from svn r9886]
This commit is contained in:
Simon Tatham
2013-06-30 08:58:45 +00:00
parent 7ae22afaf3
commit b375232d7d
7 changed files with 215 additions and 9 deletions

View File

@ -20,6 +20,24 @@
use warnings;
use IO::Handle;
use Cwd;
use File::Basename;
while ($#ARGV >= 0) {
if ($ARGV[0] eq "-U") {
# Convenience for Unix users: -U means that after we finish what
# we're doing here, we also run mkauto.sh and then 'configure'. So
# it's a one-stop shop for regenerating the actual end-product
# Unix makefile.
#
# Arguments supplied after -U go to configure.
$do_unix = 1;
shift @ARGV;
@confargs = @ARGV;
@ARGV = ();
} else {
die "unrecognised command-line argument '$ARGV[0]'\n";
}
}
@filestack = ();
$in = new IO::Handle;
@ -77,6 +95,12 @@ readinput: while (1) {
if ($_[0] eq "!srcdir") { push @srcdirs, $_[1]; next; }
if ($_[0] eq "!makefile" and &mfval($_[1])) { $makefiles{$_[1]}=$_[2]; next;}
if ($_[0] eq "!specialobj" and &mfval($_[1])) { $specialobj{$_[1]}->{$_[2]} = 1; next;}
if ($_[0] eq "!cflags" and &mfval($_[1])) {
($rest = $_) =~ s/^\s*\S+\s+\S+\s+\S+\s*//; # find rest of input line
$rest = 1 if $rest eq "";
$cflags{$_[1]}->{$_[2]} = $rest;
next;
}
if ($_[0] eq "!begin") {
if ($_[1] =~ /^>(.*)/) {
$divert = \$auxfiles{$1};
@ -287,7 +311,7 @@ sub mfval($) {
# Returns true if the argument is a known makefile type. Otherwise,
# prints a warning and returns false;
if (grep { $type eq $_ }
("vc","vcproj","cygwin","borland","lcc","gtk","mpw","nestedvm","osx","wce","gnustep","emcc")) {
("vc","vcproj","cygwin","borland","lcc","gtk","am","mpw","nestedvm","osx","wce","gnustep","emcc")) {
return 1;
}
warn "$.:unknown makefile type '$type'\n";
@ -467,6 +491,8 @@ sub manpages {
return ();
}
$orig_dir = cwd;
# Now we're ready to output the actual Makefiles.
if (defined $makefiles{'cygwin'}) {
@ -837,8 +863,6 @@ if (defined $makefiles{'wce'}) {
if (defined $makefiles{'vcproj'}) {
$mftyp = 'vcproj';
$orig_dir = cwd;
##-- MSVC 6 Workspace and projects
#
# Note: All files created in this section are written in binary
@ -1155,6 +1179,119 @@ if (defined $makefiles{'gtk'}) {
select STDOUT; close OUT;
}
if (defined $makefiles{'am'}) {
$mftyp = 'am';
$dirpfx = "\$(srcdir)/" . &dirpfx($makefiles{'am'}, "/");
##-- Unix/autoconf Makefile.am
open OUT, ">$makefiles{'am'}"; select OUT;
print
"# Makefile.am for $project_name under Unix with Autoconf/Automake.\n".
"#\n# This file was created by `mkfiles.pl' from the `Recipe' file.\n".
"# DO NOT EDIT THIS FILE DIRECTLY; edit Recipe or mkfiles.pl instead.\n\n";
@binprogs = ();
@noinstprogs = ();
foreach $p (&prognames("X:U")) {
($prog, $type) = split ",", $p;
if ("FIXME") { # decide which programs go where
push @binprogs, # FIXME "\$(BINPREFIX)" .
$prog;
} else {
push @noinstprogs, # FIXME "\$(BINPREFIX)" .
$prog;
}
}
print &splitline(join " ", "bin_PROGRAMS", "=", @binprogs), "\n";
print &splitline(join " ", "noinst_PROGRAMS", "=", @noinstprogs), "\n";
%objtosrc = ();
%amspeciallibs = ();
%amlibobjname = ();
%allsources = ();
foreach $d (&deps("X", undef, $dirpfx, "/", "am")) {
my $obj = $d->{obj};
my $use_archive = 0;
if (defined $d->{defs}) {
# This file needs to go in an archive, so that we can
# change the preprocess flags to include some -Ds
$use_archive = 1;
$archivecppflags{$obj} = [map { " -D$_" } @{$d->{defs}}];
}
if (defined $cflags{'am'} && $cflags{'am'}->{$obj}) {
# This file needs to go in an archive, so that we can
# change the compile flags as specified in Recipe
$archivecflags{$obj} = [$cflags{'am'}->{$obj}];
}
if ($use_archive) {
$amspeciallibs{$obj} = "lib${obj}.a";
$amlibobjname{$obj} = "lib${obj}_a-" .
basename($d->{deps}->[0], ".c", ".m") .
".\$(OBJEXT)";
}
$objtosrc{$obj} = $d->{deps};
map { $allsources{$_} = 1 } @{$d->{deps}};
}
# Complete list of source and header files. Not used by the
# auto-generated parts of this makefile, but Recipe might like to
# have it available as a variable so that mandatory-rebuild things
# (version.o) can conveniently be made to depend on it.
print &splitline(join " ", "allsources", "=",
sort {$a cmp $b} keys %allsources), "\n\n";
@amcppflags = map {"-I$dirpfx$_"} @srcdirs;
print &splitline(join " ", "AM_CPPFLAGS", "=", @amcppflags, "\n");
@amcflags = ("\$(GTK_CFLAGS)", "\$(WARNINGOPTS)");
print &splitline(join " ", "AM_CFLAGS", "=", @amcflags), "\n";
%amlibsused = ();
foreach $p (&prognames("X:U")) {
($prog, $type) = split ",", $p;
@progsources = ("${prog}_SOURCES", "=");
%sourcefiles = ();
@ldadd = ();
$objstr = &objects($p, "X", undef, undef);
foreach $obj (split / /,$objstr) {
if ($amspeciallibs{$obj}) {
$amlibsused{$obj} = 1;
push @ldadd, $amlibobjname{$obj};
} else {
map { $sourcefiles{$_} = 1 } @{$objtosrc{$obj}};
}
}
push @progsources, sort { $a cmp $b } keys %sourcefiles;
print &splitline(join " ", @progsources), "\n";
if ($type eq "X") {
push @ldadd, "\$(GTK_LIBS)";
}
push @ldadd, "-lm";
print &splitline(join " ", "${prog}_LDADD", "=", @ldadd), "\n";
print "\n";
}
foreach $obj (sort { $a cmp $b } keys %amlibsused) {
print &splitline(join " ", "lib${obj}_a_SOURCES", "=",
@{$objtosrc{$obj}}), "\n";
print &splitline(join " ", "lib${obj}_a_CPPFLAGS", "=",
@amcflags, @{$archivecppflags{$obj}}), "\n"
if $archivecppflags{$obj};
print &splitline(join " ", "lib${obj}_a_CFLAGS", "=",
@amcflags, @{$archivecflags{$obj}}), "\n"
if $archivecflags{$obj};
}
print &splitline(join " ", "noinst_LIBRARIES", "=",
sort { $a cmp $b }
map { $amspeciallibs{$_} }
keys %amlibsused),
"\n\n";
print $makefile_extra{'am'} || "";
select STDOUT; close OUT;
}
if (defined $makefiles{'mpw'}) {
$mftyp = 'mpw';
##-- MPW Makefile
@ -1645,3 +1782,13 @@ if (defined $makefiles{'emcc'}) {
"\trm -rf *.o $output_js_files\n";
select STDOUT; close OUT;
}
# All done, so do the Unix postprocessing if asked to.
if ($do_unix) {
chdir $orig_dir;
system "./mkauto.sh";
die "mkfiles.pl: mkauto.sh returned $?\n" if $? > 0;
system "./configure", @confargs;
die "mkfiles.pl: configure returned $?\n" if $? > 0;
}