Moved the intricacies of the perl interface build into its own makefile

that now functions as a wrapper around the MakeMaker stuff. It might
even behave sensically when we have separate build dirs. Same for plperl,
which of course still doesn't work very well. Made sure that plperl
respects the choice of --libdir.

Added --with-python to automatically build and install the Python interface.
Works similarly to the Perl5 stuff.

Moved the burden of the distclean targets lower down into the source tree.
Eventually, each make file should have its own.

Added automatic remaking of makefiles and configure. Currently only for the
top-level because of a bug(?) in Autoconf. Use GNU `missing' to work around
missing autoconf and aclocal. Start factoring out macros into their own
config/*.m4 files to increase readability and organization.

src/pl/plperl/GNUmakefile.in

@@ -0,0 +1,40 @@
+# $Header: /cvsroot/pgsql/src/pl/plperl/Attic/GNUmakefile.in,v 1.1 2000/06/10 18:02:11 petere Exp $
+
+srcdir = @srcdir@
+VPATH = @srcdir@
+
+top_srcdir = @top_srcdir@
+top_builddir = ../../..
+
+prefix = @prefix@
+exec_prefix = @exec_prefix@
+libdir = @libdir@
+
+plperl_installdir = $(libdir)
+
+mkinstalldirs = @mkinstalldirs@
+PERL = @PERL@
+PGSQL_INCLUDES = @PGSQL_INCLUDES@
+
+all: Makefile
+	$(MAKE) -f $< all
+
+Makefile: Makefile.PL
+	@plperl_installdir='$(plperl_installdir)' \
+	  EXTRA_INCLUDES='-I$(top_srcdir)/src/include $(PGSQL_INCLUDES)' \
+	  $(PERL) $< POLLUTE=1
+
+install: Makefile installdirs
+	$(MAKE) -f $< install
+
+installdirs:
+	$(mkinstalldirs) $(plperl_installdir)
+
+clean:
+	-[ -f Makefile ] && $(MAKE) -f Makefile realclean
+
+distclean maintainer-clean: clean
+	rm -f GNUmakefile
+
+
+.PHONY: all install installdirs clean distclean maintainer-clean

src/pl/plperl/Makefile.PL

@@ -15,13 +15,15 @@ if ($Config{'useshrplib'} ne 'true') {
 # Dummy Makefile for use when we can't build plperl
 
 all install:
-	@echo "Cannot build plperl because libperl is not a shared library; skipping it."
+	@echo "*****"; \
+	 echo "* Cannot build PL/Perl because libperl is not a shared library." ; \
+	 echo "* Skipped."; \
+	 echo "*****"
 
-clean distclean:
+
+clean realclean:
 	rm -f Makefile
 
-.DEFAULT dep depend:
-
 EndOfMakefile
 	close(OUT);
 	exit(0);
@@ -54,19 +56,11 @@ my $perllib = "-L$Config{archlibexp}/CORE -lperl";
 
 WriteMakefile( 'NAME' => 'plperl', 
 	dynamic_lib => { 'OTHERLDFLAGS' => "$opcode $perllib" } ,
-	INC => '-I$(SRCDIR)/include $(PGSQL_INCLUDES)',
+	INC => "$ENV{EXTRA_INCLUDES}",
 	XS => { 'SPI.xs' => 'SPI.c' },
 	OBJECT => 'plperl.o eloglvl.o SPI.o',
 	);
 
-sub MY::post_initialize { 
-
-q[
-SRCDIR=../../../src
-include $(SRCDIR)/Makefile.global
-];
-
-}
 
 sub MY::cflags {
     package MY;			# so that "SUPER" works right
@@ -88,9 +82,9 @@ sub MY::cflags {
 
 sub MY::install {
 
-q[
+qq[
 install :: all
-	cp $(INST_DYNAMIC) $(LIBDIR)
+	cp \$(INST_DYNAMIC) $ENV{plperl_installdir}
 ];
 
 }