[PATCH, Modula2] PR-108142 Many empty directories created in the build directory

[PATCH, Modula2] PR-108142 Many empty directories created in the build directory

PR-108142 Modula-2 configure generates many subdirectories in the top
build directory.  This patch dynamically creates subdirectories under
gcc/m2 if and when required.

Bootstrapped on x86_64 gnu/linux, ok for master?

gcc/m2/ChangeLog:

	* Make-lang.in (GM2_1): Change -B path to m2/stage1.
	($(objdir)/m2/images/gnu.eps): Check and create dest dir
	if necessary.
	(gm2-libs.texi-check): Check and create dir m2/gm2-libs-pim,
	m2/gm2-libs-iso and m2/gm2-libs if necessary.
	($(objdir)/m2/gm2-compiler-boot): Remove.
	($(objdir)/m2/gm2-libs-boot): Remove.
	($(objdir)/m2/gm2-libs-libiberty): Remove.
	($(objdir)/m2/gm2-libiberty): Remove.
	($(objdir)/m2/gm2-gcc): Remove.
	($(objdir)/m2/gm2-compiler): Remove.
	($(objdir)/m2/gm2-libs): Remove.
	($(objdir)/m2/gm2-libs-iso): Remove.
	($(objdir)/m2/gm2-libs-min): Remove.
	($(objdir)/m2/gm2-compiler-paranoid): Remove.
	($(objdir)/m2/gm2-libs-paranoid): Remove.
	($(objdir)/m2/gm2-compiler-verify): Remove.
	($(objdir)/m2/boot-bin): Remove.
	($(objdir)/m2/gm2-libs-pim): Remove.
	($(objdir)/m2/gm2-libs-coroutines): Remove.
	(stage1/m2): Remove.
	(stage2/m2): Remove.
	(stage3/m2): Remove.
	(m2.stageprofile): New rule.
	(m2.stagefeedback): New rule.
	(cc1gm2$(exeext)): Change dependent name.
	(m2/stage2/cc1gm2$(exeext)): Change dependent name.
	Check and create dest dir.
	(m2/stage1/cc1gm2$(exeext)): Check and create dest dir
	if necessary.
	(m2/gm2-gcc/%.o): Ditto.
	(m2/gm2-gcc/rtegraph.o): Ditto.
	(m2/gm2-gcc/$(SRC_PREFIX)%.h): Ditto.
	(m2/gm2-gcc/$(SRC_PREFIX)%.h): Ditto.
	(m2/mc-boot): Ditto.
	(m2/mc-boot-ch): Ditto.
	(m2/gm2-libs-boot): Ditto.
	(m2/gm2-compiler-boot): Ditto.
	(m2/gm2-compiler): Ditto.
	(m2/gm2-libiberty): Ditto.
	(m2/gm2-compiler): Ditto.
	(m2/gm2-libs-iso): Ditto.
	(m2/gm2-libs): Ditto.
	(m2/gm2-libs-min): Ditto.
	(m2/gm2-libs-coroutines): Ditto.
	(m2/boot-bin): Ditto.
	(m2/pge-boot): Ditto.
	(m2/pge-boot): Ditto.
	* Make-maintainer.in (m2/gm2-ppg-boot): Check and create
	dest dir if necessary.
	(m2): Ditto.
	(m2/gm2-ppg-boot): Ditto.
	(m2/gm2-pg-boot): Ditto.
	(m2/gm2-auto): Ditto.
	(m2/gm2-pg-boot): Ditto.
	(m2/gm2-pge-boot): Ditto.
	($(objdir)/plugin): Ditto.
	($(objdir)/m2/mc-boot-ch): Ditto.
	($(objdir)/m2/mc-boot-gen): Ditto.
	(m2/boot-bin): Ditto.
	(m2/mc): Ditto.
	(m2/mc-obj): Ditto.
	($(objdir)/m2/gm2-ppg-boot): Ditto.
	($(objdir)/m2/gm2-pg-boot): Ditto.
	($(objdir)/m2/gm2-pge-boot): Ditto.
	(m2/mc-boot-gen): Ditto.
	(m2/m2obj3): Ditto.
	(m2/gm2-libs-paranoid): Ditto.
	(m2/gm2-compiler-paranoid): Ditto.
	(m2/gm2-libs-paranoid): Ditto.
	(m2/gm2-compiler-paranoid): Ditto.
	(m2/gm2-libs-paranoid): Ditto.
	(m2/gm2-compiler-paranoid): Ditto.
	* config-lang.in (m2/gm2-compiler-boot): Remove mkdir.
	(m2/gm2-libs-boot): Ditto.
	(m2/gm2-ici-boot): Ditto.
	(m2/gm2-libiberty): Ditto.
	(m2/gm2-gcc): Ditto.
	(m2/gm2-compiler): Ditto.
	(m2/gm2-libs): Ditto.
	(m2/gm2-libs-iso): Ditto.
	(m2/gm2-compiler-paranoid): Ditto.
	(m2/gm2-libs-paranoid): Ditto.
	(m2/gm2-compiler-verify): Ditto.
	(m2/boot-bin): Ditto.
	(m2/gm2-libs-pim): Ditto.
	(m2/gm2-libs-coroutines): Ditto.
	(m2/gm2-libs-min): Ditto.
	(m2/pge-boot): Ditto.
	(plugin): Ditto.
	(stage1/m2): Ditto.
	(stage2/m2): Ditto.
	(stage3/m2): Ditto.
	(stage4/m2): Ditto.
	(m2/gm2-auto): Ditto.
	(m2/gm2-pg-boot): Ditto.
	(m2/gm2-pge-boot): Ditto.
	(m2/gm2-ppg-boot): Ditto.
	(m2/mc-boot): Ditto.
	(m2/mc-boot-ch): Ditto.
	(m2/mc-boot-gen): Ditto.

Signed-off-by: Gaius Mulley <gaiusmod2@gmail.com>