--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/buildsys/mk/pcc.mk	Thu Mar 19 22:24:28 2015 +0100
@@ -0,0 +1,60 @@
+#//////////////////////////////////////////////////////////////////////////////
+#
+# Copyright (c) 2010 Daniel Adler <dadler@uni-goettingen.de>, 
+#                    Tassilo Philipp <tphilipp@potion-studios.com>
+#
+# Permission to use, copy, modify, and distribute this software for any
+# purpose with or without fee is hereby granted, provided that the above
+# copyright notice and this permission notice appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+#
+#//////////////////////////////////////////////////////////////////////////////
+
+
+#@@@ add stuff for crosscompiling here.
+
+CC = pcc
+LD = pcc
+
+#@@@.if $(BUILD_CONFIG) == "debug"
+#@@@ add -g option or similar
+#@@@.endif
+CPPFLAGS = -D__Plan9__ -D__${objtype}__
+CFLAGS   = -D__Plan9__ -D__${objtype}__ -I$TOP/dyncall -I$TOP/dyncallback -c
+#CXXFLAGS = $CXXFLAGS -D__Plan9__
+#ASFLAGS  = -D__Plan9__
+
+# JUST TEMPORARY AS LONG AS I'M WORKING ON IT - Plan9's sed doesn't support sed comments
+#        /^$/d                                                               # Remove empty lines.
+#        /^#.*/d                                                             # Remove comments.
+#        s/^\.(globl|intel_syntax|file|section).*//                          # Remove some GAS directives.
+#        s/(.*):/TEXT \1(SB), $0/g                                           # Reformat function names.
+#        s/%//g                                                              # Remove % register prefixes.
+#        /^[  ]+/y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/    # Convert everything to uppercase.
+#        s/([A-Z]+)[  ]*E(..)[,   ]*E(..)/\1L \3, \2/                        # Convert 32bit instructions with 2 register operands.
+#        s/([A-Z]+)[  ]*E(..)[,   ]*([0-9]+)/\1L $\3, \2/                    # Convert 32bit instructions with register and constant as
+#        s/([A-Z]+)[  ]*E(..)[,   ]*\[E(..)\+([0-9]+)\]/\1L \4(\3), \2/      # Convert 32bit instructions with register and address as 
+#        s/([A-Z]+)[  ]*E(..)[,   ]*\[E(..)\]/\1L 0(\3), \2/                 # Convert 32bit instructions with register and address as 
+#        s/(CALL)[    ]*E(..)[    ]*$/\1 \2/                                 # Convert CALL instructions.
+#        s/(CALL)[    ]*\[E(..)\+([0-9]+)\]/\1 \3(\2)/                       # Convert CALL instructions with addressing mode.
+#        s/([A-Z]+)[  ]*E(..)[    ]*$/\1L \2/                                # Convert 32bit instructions with register operand.
+#        s/([A-Z]+)[  ]*\[E(..)\+([0-9]+)\]/\1L \3(\2)/                      # Convert 32bit instructions with address operand.
+#        s/([A-Z]+)[  ]*\[E(..)\]/\1L 0(\2)/                                 # Convert 32bit instructions with address operand.
+#        s/(REP)[     ]*(MOV)SB[  ]*$/\1; \2B SI, DI/                        # Convert repeater prefix stuff.
+#        s/(REP)[     ]*(MOV)SD[  ]*$/\1; \2L SI, DI/                        # Convert repeater prefix stuff.
+
+# Step to transform .S into object files.
+%.$O: %.S
+	cp $prereq $prereq.c
+	pcc -E $CPPFLAGS $prereq.c > $stem.s # replace with cpp? pcc requires .c suffix
+	rm $prereq.c
+	$AS $AFLAGS $stem.s
+	rm $stem.s
+