use GNU makefile

GNUmakefile

-all:
-	TEXINPUTS=::../../circdia xelatex pearlriver.tex
+#   ************    LibreSilicon's 1st TestWafer    *******************
+#
+#   Organisation:   Chipforge
+#                   Germany / European Union
+#
+#   Profile:        Chipforge focus on fine System-on-Chip Cores in
+#                   Verilog HDL Code which are easy understandable and
+#                   adjustable. For further information see
+#                           www.chipforge.org
+#                   there are projects from small cores up to PCBs, too.
+#
+#   File:           PearlRiver/GNUmakefile
+#
+#   Purpose:        Root Makefile
+#
+#   ************    GNU Make 3.80 Source Code       ****************
+#
+#   ////////////////////////////////////////////////////////////////
+#
+#   Copyright (c) 2018 by chipforge <hsank@nospam.chipforge.org>
+#   All rights reserved.
+#
+#       This Standard Cell Library is licensed under the Libre Silicon
+#       public license; you can redistribute it and/or modify it under
+#       the terms of the Libre Silicon public license as published by
+#       the Libre Silicon alliance, either version 1 of the License, or
+#       (at your option) any later version.
+#
+#       This design is distributed in the hope that it will be useful,
+#       but WITHOUT ANY WARRANTY; without even the implied warranty of
+#       MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+#       See the Libre Silicon Public License for more details.
+#
+#   ////////////////////////////////////////////////////////////////////
+
+#   project name
+
+PROJECT =       PearlRiver
+
+#   directory pathes
+
+DOCUMENTSDIR =  Documents
+LIBRARYDIR =    Library
+LAYOUTDIR =     Layout
+TOOLSDIR =      Tools
+
+#   tool variables
+
+CAT ?=          @cat
+ECHO ?=         @echo # -e
+MV ?=           mv
+TAR ?=          tar -zh
+DATE :=         $(shell date +%Y%m%d)
+
+#   project tools
+
+LATEX ?=        pdflatex -output-directory $(DOCUMENTSDIR) $(OUTPUTDIR)
+
+#   default
+
+DISTRIBUTION =  ./GNUmakefile \
+                $(DOCUMENTSDIR) \
+                $(LIBRARYDIR) \
+                $(LAYOUTDIR) \
+                $(TOOLSDIR)
+
+#   ----------------------------------------------------------------
+#               DEFAULT TARGETS
+#   ----------------------------------------------------------------
+
+#   display help screen if no target is specified
+
+.PHONY: help
+help:
+	$(ECHO) "-------------------------------------------------------------------"
+	$(ECHO) "    available targets:"
+	$(ECHO) "-------------------------------------------------------------------"
+	$(ECHO) ""
+	$(ECHO) "    help       - print this help screen"
+	$(ECHO) "    dist       - build a tarball with all important files"
+	$(ECHO) "    clean      - clean up all intermediate files"
+	$(ECHO) ""
+	$(ECHO) "    doc        - compile documentation"
+	$(ECHO) ""
+
+
+#   make archiv by building a tarball with all important files
+
+.PHONY: dist
+dist: clean
+	$(ECHO) "---- build a tarball with all important files ----"
+	$(TAR) -cvf $(PROJECT)_$(DATE).tgz $(DISTRIBUTION)
+
+#   well, 'clean' directories before distributing
+
+.PHONY: clean
+clean:
+	$(ECHO) "---- clean up all intermediate files ----"
+	$(MAKE) -C $(DOCUMENTSDIR)/LaTeX -f build.mk $@
+
+#   ----------------------------------------------------------------
+#               DOCUMENTATION TARGETS
+#   ----------------------------------------------------------------
+
+.PHONY: doc
+doc:    $(DOCUMENTSDIR)/LaTeX/$(PROJECT).tex $(DOCUMENTSDIR)/LaTeX/revision.tex
+	TEXINPUTS=$$TEXINPUT:./$(DOCUMENTSDIR)/LaTeX $(LATEX) $(<F)
+#	TEXINPUTS=::../../circdia xelatex PearlRiver.tex