still to do:
	* initializer cycle detection
	* nicer error for type checking cycles

R=ken
OCL=32855
CL=32880

R=ken
OCL=32780
CL=32780

and delete some dead code.
no actual changes here.

R=ken
OCL=32764
CL=32764

split into typecheck + walk

R=ken
OCL=32726
CL=32726

R=ken
OCL=32576
CL=32580

started to move typechecking to another file.
can build entire tree still, but lots of work
is duplicated.  much to clean up.

R=ken
OCL=32536
CL=32543

R=ken
OCL=32419
CL=32419

R=ken
OCL=31122
CL=31278

structure and array literals

R=r
OCL=29190
CL=29190

use the actual go source instead.

R=r
DELTA=90  (66 added, 18 deleted, 6 changed)
OCL=28708
CL=28719

R=r
OCL=28569
CL=28573

signature generation) into gc.

R=ken
OCL=26933
CL=26933

R=ken
OCL=26929
CL=26929

R=ken
OCL=26914
CL=26914

R=ken
OCL=26909
CL=26909

runtime not finished.

R=r
OCL=26217
CL=26217

(renamed to avoid any conflict with old p4 copies).

this approach doesn't require auto-generating
files also kept in p4, so it should be easier on
go users who don't sync very often.

this approach will be more work for go developers:
builtin.c needs to be copied to builtin.c.boot in p4
as new functions are added.  mkbuiltin does this
for certain $USERs to help us remember.

R=r
DELTA=343  (176 added, 162 deleted, 5 changed)
OCL=25803
CL=25805

in preparation of type switch.
no functional change (yet).

R=r
OCL=25784
CL=25788

ask for bison explicitly in cc, gc to try to
avoid problems with other yaccs that
might be installed.

R=r
DELTA=29  (10 added, 2 deleted, 17 changed)
OCL=22110
CL=22113

R=r
DELTA=1  (1 added, 0 deleted, 0 changed)
OCL=21577
CL=21603

R=r
DELTA=15  (9 added, 0 deleted, 6 changed)
OCL=20977
CL=20981

R=r
OCL=20794
CL=20794

R=ken
OCL=20188
CL=20188

R=r
OCL=20185
CL=20185

    package flag
	export type flag.Flag struct { name flag.string; usage flag.string; \
		value flag.Value; next *flag.Flag }
	type flag.string string
	type flag.Value interface { AsBool () (? *flag.BoolValue); \
		AsInt () (? *flag.IntValue); AsString () (? *flag.StringValue); \
		IsBool () (? flag.bool); IsInt () (? flag.bool); IsString () (? flag.bool); \
		Str () (? flag.string); ValidValue (str flag.string) (? flag.bool) }
	type flag.BoolValue struct { val flag.bool; p *flag.bool }
	type flag.IntValue struct { val flag.int64; p *flag.int64 }
	type flag.StringValue struct { val flag.string; p *flag.string }
	type flag.bool bool
	func (e *flag.StringValue) AsBool () (? *flag.BoolValue)
	func (e *flag.StringValue) AsInt () (? *flag.IntValue)
	...

the \ continuations are for this message, not real.

changed delimiter for import from (( )) to $$ $$.

replaced mksys.bash with mksys.c

changed sys.go to use leading export,
	fake package name is now SYS not foop

don't always require ; on forward func decls

R=ken,r
DELTA=1827  (446 added, 1083 deleted, 298 changed)
OCL=16433
CL=16463

if y.tab.c is older than y.tab.h, make
interprets doing nothing as a failure,
because y.tab.c hasn't been updated.
so update it.

R=r
DELTA=4  (0 added, 0 deleted, 4 changed)
OCL=15615
CL=15622

use -j4 (4-way parallel) in make.bash.

halves time for make.bash on r45

also add libregexp, acid to default build

R=r
DELTA=90  (39 added, 37 deleted, 14 changed)
OCL=15485
CL=15487

R=r
DELTA=149  (80 added, 62 deleted, 7 changed)
OCL=14029
CL=14029

R=r
DELTA=381  (142 added, 26 deleted, 213 changed)
OCL=14011
CL=14016

This makes it easy to build with other flags
(like -ggdb) or other compilers (like cc64).

R=r
DELTA=45  (6 added, 22 deleted, 17 changed)
OCL=13790
CL=13793

SVN=122793

SVN=122487

remove the dependency on /home/r.

SVN=122482

SVN=122274

phew.

SVN=122266