Automagically expand includes in Makefile.in during configure time

when make is not GNU Make.

2 files changed, 42 insertions, 1 deletions

diff --git a/source3/configure.in b/source3/configure.in
index 4191915f96..f1004778f4 100644
--- a/source3/configure.in
+++ b/source3/configure.in
@@ -6374,7 +6374,17 @@ else
 	fi
 fi
 
-AC_OUTPUT(Makefile
+AC_SUBST(MAKEFILE)
+if test x$samba_cv_gnu_make = xyes; then
+	MAKEFILE=Makefile
+else
+	# When we don't have GNU Make, generate a copy of Makefile.in 
+	# that doesn't have the "include " statements but just includes 
+	# the files verbatim.
+	MAKEFILE=Makefile-noincludes
+	$PERL ./script/expand-includes.pl Makefile.in > $MAKEFILE.in
+fi
+AC_OUTPUT($MAKEFILE
 	  script/findsmb smbadduser script/gen-8bit-gap.sh script/installbin.sh script/uninstallbin.sh
 	  lib/netapi/examples/Makefile
 	  lib/netapi/tests/Makefile
@@ -6384,6 +6394,12 @@ AC_OUTPUT(Makefile
 	  pkgconfig/smbsharemodes.pc
 	  ../examples/libsmbclient/Makefile.internal
 	  )
+dnl If we had to expand the includes, make tsure the output file is moved back
+AC_OUTPUT_COMMANDS([
+if test x$MAKEFILE != Makefile; then
+	mv $MAKEFILE Makefile
+fi
+])
 
 #################################################
 # Print very concise instructions on building/use
diff --git a/source3/script/expand-includes.pl b/source3/script/expand-includes.pl
new file mode 100755
index 0000000000..da64363081
--- /dev/null
+++ b/source3/script/expand-includes.pl
@@ -0,0 +1,25 @@
+#!/usr/bin/perl
+# Expand the include lines in a Makefile
+# Copyright (C) 2009 Jelmer Vernooij <jelmer@samba.org>
+# Published under the GNU GPLv3 or later
+
+sub process($)
+{
+	my ($f) = @_;
+	open(IN, $f) or die("Unable to open $f: $!");
+	foreach (<IN>) {
+		my $l = $_;
+		if ($l =~ /^include (.*)$/) {
+			process($1);
+		} else {
+			print $l;
+		}
+	}
+}
+
+my $path = shift;
+unless ($path) {
+	print STDERR "Usage: $0 Makefile.in > Makefile-noincludes.in\n";
+	exit(1);
+}
+process($path);