path: root/doc/ports/aux_port.doc

Begin IRAF port to Macintosh A/UX 2.0, 26Jan91.
-----------------------------------------------

unix/as
unix/as.mac		+
unix/bin
unix/bin.mac		+
unix/hlib/irafuser.csh
	Set up a new "mac" architecture.  (01/26)

unix/hlib/libc/iraf.h
	Set the iraf root to point to /u1/iraf.  (01/26)

unix/as.mac/ishift.s
unix/as.mac/zsvjmp.s
	Modified for the GNU assembler (GAS).  (01/26)

unix/hlib/*.csh
	Modified for A/UX.  (01/26)

unix/hlib/config.h
unix/hlib/libc/spp.h
	Checked that LEN_JMPBUF was large enough to handle the setjmp
	buffer used by A/UX.  (01/26)

unix/boot/bootlib/mkpkg.sh
unix/boot/generic/mkpkg.sh
unix/boot/mkpkg/mkpkg.sh
unix/boot/rmbin/mkpkg.sh
unix/boot/rmfiles/mkpkg.sh
unix/boot/rtar/mkpkg.sh
unix/boot/spp/mkpkg.sh
unix/boot/spp/mkxc.sh
unix/boot/spp/rpp/mkpkg.sh
unix/boot/spp/rpp/ratlibc/mkpkg.sh
unix/boot/spp/rpp/ratlibf/mkpkg.sh
unix/boot/spp/rpp/rppfor/mkpkg.sh
unix/boot/spp/xpp/mkpkg.sh
unix/boot/wtar/mkpkg.sh
unix/boot/xyacc/mkpkg.sh
unix/gdev/sgidev/mkpkg.sh
unix/os/mkpkg.sh
unix/shlib/mkpkg.sh
	Changed all occurrences of "cc" to "$CC" and all occurrences of
	"f77" to "$F77".  Changed all occurrences of "ranlib" to $RANLIB.
	(01/26)

unix/hlib/irafuser.csh
	Added definitions for CC, F77, and RANLIB (set to "echo ranlib" for
	A/UX, which uses COFF).  For the first attempt to compile the system
	I am using gcc and the Absoft A/UX Fortran compiler.  Later I would
	like to try f2c (Fortran to C translator) with gcc as an alternative
	to the Absoft Fortran.  Early tests indicate that this should work,
	and may produce better optimized code than the Absoft compiler.  I
	have already verified that the A/UX f77 cannot be used to build iraf
	- there were serious problems just trying to compile the files in
	one directory.  (01/26)

-------
Begin bootstrap.  For this I have the GCC flags set to fairly restrictive
values, enabling some optional warning messages, to flush out any
questionable coding constructs.  GCC is also an ANSI C compiler, which may
mean additional problems.  (01/26)

unix/os/mkpkg.sh
	GCC doesn't echo the filename (as in "file.c:") during compiles,
	which I found annoying, so I changed the mkpkg.sh to use the Bourne
	shell FOR construct to compile each file separately.  (01/26)

unix/setarch.sh
	The A/UX version of "test" does not have the -h flag to test for
	symbolic links, so the existing script did not work.  Still trying
	to a portable way to do this, I changed the script to use the
	construct:  if [ "`ls -d as`" = "as" ]; then ...  (01/26)

unix/os/alloc.c
	1. The file header comment section contained the sequence "for the
	/dev/* entries...".  The "/*" would cause a warning from gcc that
	there might be a comment buried in another comment, which can cause
	a comment to terminate prematurely.  In this case it was harmless
	and indeed there was no error, but I changed the text to eliminate
	the warning.
	2. Moved the #include <sys/types.h> to before the #include <utmp.h>,
	as the A/UX version of the latter requires the former.  (01/26)

unix/os/getproc.c
	1. Had to add

	    #ifdef AUX
	    #include <sys/mmu.h>
	    #include <sys/page.h>
	    #include <sys/region.h>
	    #endif

	before the #include <sys/proc.h>, to get the latter to compile.

	2. In the A/UX nlist facility n_name is an array rather than a
	pointer to char, so entries such as

	    nl[0].n_name = "_proc";

	had to be changed to

	    strcpy (nl[0].n_name, "_proc");			(01/26)

unix/os/prwait.c
	In pr_getipc(), deleted unused variables error_code, error_status,
	waitpid.  (01/26)

unix/os/zalloc.c
	1. In ZDVALL, deleted unused variable x_status.
	2. Deleted unused variable i in loggedin().  (01/26)

unix/os/zfioks.c
	1. Deleted the old, commented out code for rcmd(), as variables
	defined for this were being reported as unused.  Added a comment
	explaining that rcmd and friendly-host authentication cannot be
	used without making the process suid root.
	2. Added #ifdef SYSV support for SysV termio.  Terminal driver
	ioctls are used in this routine to set raw mode for the password
	prompts.
	3. GCC was complaining that the setjmp/longjmp used in zardks,
	zawrks could cause certain register variables to become undefined
	(op and nbytes in zardks, ofd in zawrks), so I changed the storage
	class from register to auto for these variables.  (01/26)

unix/os/zfiolp.c
	I had to change the declaration

	    static PKCHAR xnullstr[1] = XEOS;
	to
	    static PKCHAR xnullstr[1] = { XEOS };

	(PKCHAR=short and XEOS=0) or GCC would complain about an invalid
	initializer.  Must be a feature of the ANSI C syntax.  (01/26)

unix/os/zfiotx.c
unix/hlib/libc/kernel.h
	1. Modified to add #ifdef SYSV support for SysV terminal i/o.
	2. GCC complained about some functions which were used (default
	storage class extern) and later declared static; added static
	declarations for these functions to the file header to eliminate
	these (harmless) warning messages.  (01/27)

unix/os/zfxdir.c
	Deleted unused local variable "ch".  (01/27)

unix/os/zgcmdl.c
	Deleted unused local variable "ev".  (01/27)

unix/os/zgcmdl.c
	Produced a coupld of "/* within comment" warning messages due an
	example of some <iraf.h> code in the header comment.  Changed /* in
	the example to /@ to avoid the (harmless) warning.  (01/27)

unix/os/zgtime.c
	Had to #ifndef SYSV the #include <sys/timeb.h> as this file does
	not exist on SysV systems.  (01/27)

unix/os/zmain.c
	Deleted unused local variables "junk" and "wsetsize".  (01/27)

unix/os/zwmsec.c
	Added "static" to explicitly specify the storage class in the first
	declarations of "napmsx", which is declared static in the source
	given later in the file.  (01/27)

unix/os/zxwhen.c
	1. The system dependent definition "fcancel" would not work for A/UX;
	added a #ifdef AUX version.
	2. GCC did not realize that the call to kernel_panic in zxwhen was
	an exit, and would warn that the value of variable "vex", used later
	in the procedure, could be unitialized.  Added a statement to init
	this to null to avoid the warning message.
	3. In zxgmes, the char pointer to the returned error message was
	not being initialized if no error had occurred.  Modified to return
	the null string in this case.  (01/27)

unix/os/zzstrt.c
	Added #ifdef SUNOS4 conditionals around certain declarations which
	are used only the #ifdef SUNOS4 code which follows, to avoid unused
	variable warnings.  (01/27)

unix/boot/bootlib/envinit.c
	Deleted the unused variable "osfn" in loadpkgenv.  (01/27)

unix/boot/bootlib/bootlib.h
	Deleted the commented out #define NOVOS definition, which causes
	a /* in comment warning and doesn't need to be in this file anyhow.
	(01/27)

unix/boot/bootlib/osfcopy.c
	1. Deleted the unused variable "binary_file".
	2. Added a return at the end of the function, to guarantee that
	a function value was returned.  (01/27)

unix/boot/bootlib/ostime.c
	Modified with #ifdef SYSV for SysV.  This whole business needs to
	be redone sometime to provide rigorously correct time primitives
	for iraf.  (01/27)

unix/boot/bootlib/vfn2osfn.c
	Local variable "first_time" defined but never used.  (01/27)

unix/boot/generic/generic.c
	1. In copy_comment(), added an entry time initializer for the
	local variable "flag".
	2. GCC complained about the variable "ch" in evaluate_expr() possibly
	being used before being initialized.  This looked harmless in this
	case, but I added a global initializer to eliminate the warning
	message.  (01/27)

unix/boot/mkpkg/host.c
	Deleted a couple of unused "exit_status" variables.  (01/27)

unix/boot/mkpkg/host.c
	Deleted unused variable "ip" in search_mkpkgfile().  (01/27)

unix/boot/mkpkg/mkpkg
unix/boot/mkpkg/mkpkg.h
unix/boot/mkpkg/scanlib.c
	1. Added a #include "mkpkg.h" to scanlib.c.  This file includes extern.h
	which references a structure defined in mkpkg.h.
	2. Deleted unused local variable "key" in h_scanlibrary().  (01/27)
	3. Replaced the MAX_SYMBOLS definition in scanlib.c by MAX_LIBFILES,
	as there is also a MAX_SYMBOLS in mkpkg.h which means something
	quite different.  (01/29)

unix/boot/mkpkg/sflist.c
	In sf_scanlist, the GCC static analysis indicated that variable "tail"
	could possibly be used without being initialized.  Added code to
	initialize tail=head before scanning the list.  (01/27)

unix/boot/mkpkg/tok.c
	1. In do_if(), in the event of a syntax error the local variable "bval"
	could be used without being initialized.  Once again probably harmless
	but it makes GCC complain.
	2. Unused variable "ch" in do_call().
	3. Module do_include() was not returning an exit status in all
	cases.  (01/27)

unix/boot/rmfiles.c
	1. Unused variable "i" in main().
	2. Another warning from GCC static analysis suggesting that local
	variable "fp" might be being used before being initialized (definitely
	not in this case, but I added an initializer to avoid the message).
	(01/27)

unix/boot/wtar/wtar.c
	Unused variable "op" in putheader().  (01/27)

unix/boot/spp/xc.c
	1. Unused variable "cmdbuf" in main().
	2. Variable "append" in sys() could be used before being
	initialized.  (01/27)

unix/boot/spp/xpp/xppcode.c
	1. Unused variable "irafdefs" in do_include().
	2. parse_task_statement() did not return a function value in all cases.
	3. accum() did not return a function value in all cases.
	4. Unused variable "digit" in charcon().  Function did not return
	a value in all cases.
	5. Variable "value" not initialized in all cases (when an error
	occurs, but it causes a warning message).  (01/27)

unix/boot/spp/xpp/decl.c
	Local variable "sp" was not being initialized in all cases (i.e.,
	when an error occurred).  (01/27)

unix/boot/spp/rpp/ratlibc/getlin.c
	The local variable "c" was not being initialized in all cases.  (01/27)

unix/mkpkg.sh
	Commented out the SHLIB build code, as there is no shared library
	support for Mac/IRAF yet.  (01/27)

unix/gdev/sgidev/sgidispatch.c
	Deleted unused local variables "maxch" and "status".  (01/27)

--------------------------
Second bootstrap attempt.  (01/27)

unix/os/gmttolst.c
	Added #ifdef SYSV support.  (01/27)

unix/os/mkpkg.sh
	Changed the "rm alloc.o" to "rm -f alloc.o", as the .o file is
	not being left behind on this system, using GCC.  (01/27)

unix/os/zfioks.c
unix/hlib/irafuser.csh
	GCC still warns that longjmp could clobber the values of several
	local variables in this routine.  Evidently this is a feature of
	ANSI C.  The values of automatic variables not declared "volatile"
	are not guaranteed to be preserved in a longjmp.  Added a -DANSI
	to irafuser.csh and some #ifdef ANSI code to zfioks.c to provide
	the necessary (but not non-ANSI backwards compatible) definitions.
	(01/27)

unix/os/zfiotx.c
	Another longjmp warning, this time in ZGETTX.  Variable "op" might
	not be saved over a longjmp.  In this case I was able to avoid the
	problem merely by moving the op initialization statement to after
	the setjmp.  (01/27)

unix/os/zfiopl.c
	In zclspl, another case of an array aggregate initializer "= val;"
	having to be changed to "= { val };" when initializing an array of
	length 1.  (01/27)

unix/os/zoscmd.c
	Modified so that if SYSV is defined, "fork" is used instead of 
	the BSD-ism "vfork".  (01/27)

-------------------------
Third bootstrap attempt.

unix/boot/spp/rpp/ratlibf/*.f
unix/boot/spp/rpp/rppfor/*.f
	The Fortran compiler I am using (Absoft) is case sensitive by default
	and does not append an underscore to symbol names.  For testing
	purposes it would be most useful to have the Fortran names occupy
	the same name space as the C library names, so I translated the
	contents of all the above files to lower case.  (01/27)

	[In retrospect this wasn't the best way to do this, the Fortran
	compiler has a switch which does it more simply.  (01/29)]

unix/boot/spp/rpp/ratlibc/ratdef.h
	Removed the trailing underscore from the names of the Fortran
	routines.  (01/27)

unix/hlib/libc/knames.h
unix/hlib/libc/xnames.h
	Edited to remove the trailing underscore from all names.  (01/27)

unix/boot/spp/rpp/ratlibr/defs
unix/boot/spp/rpp/rpprat/defs
	It probably doesn't matter, but these directories both have a copy
	of the "defs" file and the files should be the same, but they aren't.
	The version in rpprat has been changed to increase the size of
	various size limiting buffers.  The fortran sources should be
	regenerated using compatible defs files.  (01/28)

unix/boot/spp/rpp/mkpkg.sh
	RPP failed to link in the first bootstrap attempt.  To fix this
	it was necessary to modify the $CC link command in the mkpkg.sh,
	as follows:

	    $CC $HSI_CF -t rpp.o librpp.a libf.a libc.a -lf77 -o rpp.e

	The -t flag had to be added to avoid warnings about the inconsistent
	sizes for the cdsmem common (see "defs", above).  The -lf77 had to
	be added for the Absoft compiler, as evidently it uses library
	functions for a few simple things like ABS that some RPP code
	references.  (01/28)

unix/boot/mkpkg/host.c
	Added a #ifdef SYSV to the code which calls RANLIB, since this is
	not used on SYSV (COFF) systems.  (01/28)

unix/os/irafpath.c
	Added a #ifdef AUX conditional to search the "unix/bin.mac" directory
	for Mac/IRAF system files.  (01/28)

unix/spp/rpp/rppfor/poicod.f
	The HSI bootstrap completed successfully, although some things are
	probably still not working correctly.  XC now runs but in my very
	first compile test I ran into a nasty problem in the third party
	Absoft Fortran compiler.  The compiler complains about the following
	statement in fio$areadb.x being out of order:

		memi(fp+15) = 0

	Evidently it thinks this array assignment is a statement function
	or something.  I was further able to isolate the problem with the
	following source:

	    subroutine areadb (fd)
	    integer fd
	    integer Memi(1)
	    real    Memr(1)
	    equivalence (Memi, Memr)
	    common /Mem/ Memi
	    save
		memi(fd+15) = 0
	    end

	The compiler barfs on a syntax error on line 8 of this file, the
	lone assignment statement.  With a little further testing I was
	able to establish that this is due to case sensitivity in the
	compiler!  Changing the memi to Memi causes the problem to go away.
	To fix the problem in RPP I had to replace the file poicod.f by
	a version that uses "mem" rather than "Mem" in the data strings.
	(01/28)

unix/hlib/libc/libc.h
	The Absoft compiler prefixes the names of Fortran commons with C
	(e.g., "Cfiocom", "Cmem", etc.) and omits the trailing underscore
	as in C.  Modified libc.h to reflect the above naming scheme.  (01/28)

---------------------------------
Started first core system sysgen.  (01/28)

sys/plio/plr2l.gx
sys/plio/plp2l.gx
sys/plio/pllsten.x
sys/plio/pllrop.x
	The Absoft Fortran compiler could not handle the following type of
	statement in these files:

	    ll_out[op] = M_DH + -dv

	It was necessary to place parens around the (-dv) to avoid the
	problem.  (01/29)

unix/hlib/iraf.h
unix/boot/spp/xpp/decl.c
	1. There were a lot of problems in PLIO in the initial sysgen due to
	the use of bitwise boolean intrinsics in these files.  The Absoft
	compiler does have some bitwise functions but 1) they are typed,
	not generic functions, and 2) a function which takes two short
	integer arguments as input can return an integer result (contrary
	to the documentation).  Also, this is not a problem but a comment,
	but the compiler generates function calls for the bitwise operators,
	which is rather inefficient.  The only way I could come up with to
	work around these limitations was to define the bitwise intrinsics
	in hlib$iraf.h as follows:

		define	and	iand(int($1),int($1))
		define	or	ior(int($1),int($1))
		define	not	jnot(int($1))
		define	xor	ieor(int($1),int($2))

	2. Unfortunately the argument expansion in the above definitions
	would cause problems with functions that declare the bitwise
	intrinsics, i.e., that contains statements such as "int and()".
	It was necessary to modify decl.c to add special processing for
	function declarations so that any declarations of the bitwise
	intrinsics could be omitted.  This may be a generally useful
	addition as special processing of intrinsic functions might be
	required on any system.  (01/29)

sys/mwcs/mwtransd.x
	This file also contained a "foo + -bar" construct requiring
	parenthesis to get by the Absoft parser.  (01/29)

sys/imfort/imemsg.x
	This file contained four Fortran escapes (error message strings)
	which ran over the 72 character line limit of Fortran, causing the
	Absoft compiler to complain.  (01/29)

unix/hlib/mkpkg.inc
	Added the following default compile time flags:

	    -f		Fold all symbol names to lower case.  This is needed
			for some of the Fortran sources.

	    -k		Restore all registers when a procedure returns.
			This is necessary if Fortran modules are to be
			called from C code.

	Mac/IRAF also needs the -z link flag.  (01/29)

sys/gio/nspp/portlib/gridal.f
	The equivalence on line 4 was incorrect (or at least ill-advised)
	due to a dimension error.  The code "mfmtx(1),ifmt(1))" should
	have been "mfmtx(1),ifmt(1,1))".  (01/29)

sys/gio/nspp/portlib/z8zpbd.f
sys/gio/nspp/portlib/z8zpii.f
	The Absoft compiler didn't want to permit use of DATA to initialize 
	variables in common so I had to move all the remaining DATA
	statements out of z8zpbd.f into run time initialization statements
	in z8zpbd.f  (01/29)

unix/boot/spp/xc.c
	1. The routine printargs() was printing one more argument then there
	was, due to a <= that should have been a < in a FOR loop.
	2. Modified XC to use GCC for linking.  (01/29)

-----------------------
This took care of all the problems with the sysgen up to the attempt to
link the first task.  Trying to build the system task, there was a file
that did not compile.  Inexplicably the system hang twice requiring a
reboot, once while linking and the other time while trying to do a mkpkg
on the system task (the system hand requiring a reboot in my first attempt
to link an iraf task!).  No idea why this happening.  (01/29)

The above problem was due to the rebuilding of XC after the first sysgen.
libsys.a and libvops.a existed this time so XC was not built NOVOS, which
was no good as the entire kernel needs to be consistent one way or the
other, and I haven't done runtime checks of the iraf libraries yet anyhow.
(01/30)

unix/hlib/mkfloat.csh
	The tar -x flags are "tar -xpf" for BSD systems, and "tar -xof" for
	SysV systems.  Added a new SET at the top to document the dependency
	and set the value to -xof for AUX.  (01/30)

unix/hlib/irafuser.csh
unix/hlib/fc.csh
unix/hlib/cl.csh
	Set up two different architectures for Mac/IRAF.  These are the
	following:

		mf2	Absoft MacFortran II binaries
		f2c	F2C/GCC binaries

	F2C is a publically available Fortran to C translator, and GCC is
	the GNU C compiler.  These can be combined to yield an interesting
	Fortran compiler constructed from only publically available sources.
	This is particularly interesting since we are already using GCC
	as our C compiler for A/UX.  Initially I am building with the Absoft
	compiler but I plan to try F2C/GCC later.  (01/30)

mkpkg
noao/mkpkg
bin.generic		+
	Edited the root mkpkg file to add entries "mf2" and "f2c" for setting
	the bin.mf2 and bin.f2c architectures.  Deleted all the Sun
	architecture entries.  Added a bin.generic subdirectory.  (01/30)

pkg/system/help/lroff/textout.x
	Modified to eliminate the ENTRY point.  (01/30)

-----------------------
First successful iraf process link on A/UX - xx_system.e  (01/30)

unix/hlib/iraf.h
unix/hlib/libc/xnames.h
	The Absoft compiler does not append an underscore to function names
	hence SPP/Fortran function names occupy the same name space as C
	names.  Probably there are a number of SPP procedure names which
	redefine standard C library or other host system names (this has also
	been a problem with VMS/IRAF so fixing that system will be another
	benefit of dealing with this here).  The first such name collision
	found is GETPID.  Since the SPP getpid was calling the host getpid
	an infinite loop would result.  This is probably what was causing
	the system to hang up when XC was run earlier.  (01/30)

	Summary of redefined names (to be added to as I locate them):

		getpid

	All such name collisions are handled by remapping the name in iraf.h
	and libc/xnames.h.

unix/boot/spp/xc.c
unix/hlib/mkpkg.inc
	Modified XC to use CC for linking (I was using GCC) and change the
	"-/t" link flag in mkpkg.inc to "-/Wl,-t", which instructs CC to
	hand off the flag -t to the linker.  (01/30)

unix/os/zzstrt.c
unix/os/zxwhen.c
	Digging into the A/UX internals to see how A/UX handles the IEEE
	exceptions I find that a function "initfpu" is called during process
	startup.  It turns out though, that this function is a no-op!
	From the assembler it appears that the current version is initfpu(){}.
	Must be a placeholder for a future version of A/UX when it will be
	done "right".  No changes to zzstrt/zxwhen yet until I figure out
	how...  (01/30)

unix/hlib/mkpkg.inc
unix/hlib/mkpkg.sf.MF2
	Uh oh...  Absoft compiler bug, and a troublingly simple one.  The
	memio$sizeof.x procedure is only one line long:

	    return (ty_size[dtype])

	but the Absoft compiler with default optimization enabled is
	eliminating most of the code and producing something which does
	not even use the ty_size array.  Added the file to the mkpkg
	special file list to be compiled without optimization.  (01/30)

--------
unix/hlib/mkpkg.sf.MF2
	On March 27 I finally got a few more hours to play with this port;
	looked into the next runtime bug in x_system.e.  It turned out to
	be necessary to recompile file fio$fgetfd.x without optimization.
	Once again, the bug was disturbing as it did not look like an
	especially subtle bug.  It looked like the compiler was allocating
	the same location on the stack in two places and the second reference
	would overwrite the first.  After working around this one, I tried
	running x_system.e and it failed again with another startup bug,
	still trying to execute all the code in clopen.x.  It begins to
	look bad for the Absoft compiler; if we can't get any further than
	this I suspect the system will be riddled with optimizer bugs.  (3/29)

--------
I think it is time to give up on the Absoft compiler, at least for now, and
try F2C instead.  (4/3)

unix/hlib/irafuser.csh
unix/hlib/mkpkg.sf.F2C			+
	Configured for F2C architecture.  (4/3)

unix/hlib/libc/libc.h
unix/hlib/libc/xnames.h
unix/hlib/libc/knames.h
unix/boot/spp/rpp/ratlibc/ratdef.h
unix/as.mac/zsvjmp.s
	Restored the trailing underscores, since F2C adheres to this
	convention.  (4/3)

unix/hlib/iraf.h
	Commented out the definitions for and,or,not,xor, since F2C uses
	the SPP versions (which came originally from UNIX f77).  (4/3)

sys/fmtio/ctotok.x
	Local variable numch never used (this is old code so I don't know
	why no other compiler has found this).  (4/3)

sys/fmtio/evexpr.y
sys/fmtio/evexpr.x
	The second argument (a debug flag) to yyparse (xev_parse) is a
	boolean, but xev_parse was being called elsewhere with an integer
	argument.  Changed to a boolean since the Y*cc code contains many
	if (yydebug) constructs.  (4/3)

sys/etc/main.x
	FREDIR is a subroutine but was being called as a function in one
	place in this file.  (4/3)

sys/tty/ttyputl.x
	This file contained a statement  call putci (fd, "_")  which was
	incorrect, since the argument "_" is type char but is supposed to
	be integer.  (4/3)

sys/gio/gopen.x
	The pointer array graphcap_file was not being used.  (4/3)

sys/pmio/pmplls.x
	The second call to pl_plls was missing the ll_depth argument.  (4/3)

sys/qpoe/qpppar.x
	The second call to qp_sizeof was missing an argument.  (4/3)

sys/imfort/bfio.x
	There was an extra "status" argument to one of the calls to
	zsttbf.  (4/3)

unix/boot/spp/xc.c
	Built the CC link time flag "-Wl,-t" directly into XC, since it
	is needed to link iraf programs and is too much of a nusiance to
	have to type when XC is used manually.  The flag turns off a linker
	warning message warning about inconsistent lengths for commons.
	(4/3)

sys/gio/ncarutil/conran.f
	Local variable LNGTHS not used.  (4/3)

pkg/plot/crtpict/t_crtpict.x
	A call to gardwrd was missing the maxch argument. (4/3)

unix/hlib/install
	1. Had trouble with the $hbin/sgi2* $hlib/sgi2* stuff in MODEFILES.
	The second did not expand to anything and the string "$hlib/sgi2*"
	was left in MODEFILES with the * unexpanded, causing problems later
	when appended to a directory prefix.  Since there are not supposed
	to be any executables in hlib anyhow I deleted the second reference.
	2. In the code which checks the MODEFILES, I added a test to see
	if the file exists as named, before looking for it in each of the
	directories.  Referencing a nonexistent directory can cause the
	script to bomb on A/UX (it shouldn't, but it does - a bug in csh).
	3. Had to change /etc/chown to /bin/chown.  (4/3)

pkg/plot/getdata.x
	The statement if(nxrows) was incorrect as nxrows is integer.  (4/3)

pkg/xtools/intrp.f
unix/hlib/mkpkg.sf.F2C
unix/as/intrp.c			+
	F2C failed to produce correct C code for this file (which contains
	multiple ENTRY points).  Hand edited the C version and added it to
	the special file list.  (4/3)

pkg/dataio/fits/fits_wpixels.x
unix/hlib/mkpkg.sf.F2C
unix/as/fits_wpixels.c		+
	Same bug as above.  (4/3)

pkg/plot/t_graph.x
	Variable window declared but not used.  (4/3)

pkg/plot/t_velvect.x
	Variable nset declared but not used.  (4/3)

sys/fmio/fmlfundel.x
	The two calls to fmio_bind and fmio_errck were both lacking the
	fm argument.  (5/3)

sys/ki/kireceive.x
	A call to strcpy was missing an argument.  (5/3)

sys/imio/imopsf.x
	The call to pl_ssize had an extra unused argument.  (5/3)

sys/etc/pagefiles.x
	ttyctrl, which is an integer function, was being called as a
	subroutine.  (5/3)

sys/gio/gopen.x
	Local string variable graphcap never used.  (5/3)

sys/imio/iki/oif/oifclose.x
sys/imio/iki/oif/oifdelete.x
	The integer function protect() was being called as a subroutine.
	(5/3)

sys/plio/plglr.gx
	The routine pl_rangerop was being called incorrectly.  (5/3)

sys/plio/plprop.gx
	The VOPS routine argt (replace if greater than) was being
	called incorrectly in three places.  (5/3)

sys/plio/plascii.x
	The subroutine pl_glpi() was being called as a function.  (5/3)

sys/plio/pldebug.x
	The integer function pl_l2ri() was being called as a subroutine.
	(5/3)

sys/pmio/pmglp.gx
	The routine pl_pixrop was being called incorrectly.  (5/3)

sys/qpoe/qpioopen.x
	A call to syserr was being made where syserrs was intended.  (5/3)

unix/os/zzstrt.c
	Added a call to "setcompat (COMPAT_BSD)" to be executed upon
	process startup.  This tells the kernel to use BSD semantics
	when executing system calls.  This fixed a problem I was having
	with ZWMSEC, which would result in the process being killed
	with a SIGALRM when the interval timer interrupted, even though
	a signal handler had been posted earlier with sigvec.  (5/4)

unix/os/zzstrt.c
	Here is another problem that, like the previous one, was very
	indirect and hence difficult to track down.  The time-task feature
	of iraf, e.g., "$imstat dev$pix", when run for the first time
	in a new process, would return a clock time such as "-416:+0"
	instead of "0:13" or whatever.  Thereafter it would be ok, until
	the process was restarted.  This turned out to be due to the
	clock time returned by the first call to ZGTIME being wrong.
	The eventual solution was to add a call to TZSET to zzstrt to
	initialize the SysV time stuff before any time calculations
	take place.  What I suspect was happening is that in gmt_to_lst
	I was accessing "timezone", which is a global data variable in
	SysV, but the value was being changed sometime later in an
	indirect call to TZSET.  Using a global variable for something
	like this that is evidently not constant is a very questionable
	feature of SVID (unless it is a bug in A/UX).  (5/5)

unix/hlib/mkpkg.sf.F2C
	It turns out that the A/UX version of bcopy does not work (is
	destructive) for overlapping arrays, so I had to remove all the
	entries for amov$t and bytmov from the special file list.  This
	problem showed up as a segmentation violation in HELP.  (5/5)

	All three of these last bugs were very difficult to track down -
	essentially, in each case I eventually just guessed what it might
	be, after tracking the problem down to a region of code.

math/curfit/cvpower.gx
	Changed a "amovk$t(INDEFR,...)" to "amovk$t(INDEF,...)".  The former
	causes a real to be passed where a double is expected.  (5/6)

sys/gio/cursor/grccmd.x
	External pr_psio() declared but never used.  (5/6)

sys/gio/stdgraph/stgclws.x
	External std_onerror() declared but never used.  (5/6)

sys/libc/qsort.c
	The static function qst() was being used before being declared,
	resulting in an extern/static declaration inconsistency.  (5/6)

math/gsurfit/gs_f1deval.gx
	In the line:   call amulk$t (Mem$t[sx], 2., Mem$t[sx], npts)
	The real constant "2." was changed to the generic form "2$f".  (5/6)

sys/ki/irafks.x
        The "task irafks = onentry" was incorrect since ONENTRY is an integer
        function.  This was harmless since the purpose of the task statement
        was merely to get an iraf main, but I set up a dummy t_irafks task
        to avoid the type clash.  (5/6)

pkg/cl/bkg.c
	Static function bkg_close() used before being declared static.
	Added a static function declaration to the file header.  (5/6)

pkg/cl/debug.c
	Same as above, function dd_f().  (5/6)

pkg/cl/edcap.c
	Same as above, function map_escapes().  (5/6)

pkg/cl/pfiles.c
	Same as above, function mapname().  (5/6)

pkg/cl/cl.x
	Same problem as in irafks, above.  ONENTRY is a function and should
	not be referenced as a subroutine in the task statement.  Added a
	dummy t_cl procedure to avoid the type clash.  (5/6)

unix/hlib/login.cl
	The line
	
	    if (access ("home$loginuser.cl") cl < "home$loginuser.cl"

	causes the following statement to be ignored if the IF is true.
	This is a CL bug, but for now the workaround is to add a null
	statement ; to the line following the IF.  (5/6)

pkg/cl/gram.c
	dumpparams() modified to write to t_out instead of t_stdout.
	ccdphot related experiment.  (6/21)

------------------
Rebuilt HSI with VOS facilities.  (7/19)
Started build of NOAO packages.  (7/20)

unix/hlib/irafuser.csh
	Added "-Wl,-t" to the HSI_CF flags.  This gets rid of a linker
	warning about xercom changing size.  (7/20)

--------------------
System upgraded to V2.10.  Started with the SunOS version of the system
from tucana, merged A/UX stuff back in, which many minor changes.  (10/01)

unix/hlib/irafuser.csh
	Added -traditional to the GCC flags, to avoid some problems
	in the A/UX system includes, probably introduced in the upgrade to
	A/UX 2.0.1.  (10/02)

lib/libex.a
	After the sysgen I had to do a "ar ts" on this file to regenerate
	the symbol table; not clear why this library and no other.  Until
	the reason is clear, no action.  (10/02)

	[This appears to be a bug in AR; it is failing to properly generate
	[the symbol table for very large libraries.  A manual "ar ts" seems
	[to fix the problem, but this bug will cause problems with a sysgen.]

sys/gio/ncarutil/pwrity.f
	Unused variable LEN on line 335.  (10/02)

sys/gio/ncarutil/pwrzi.f
sys/gio/ncarutil/pwrzs.f
sys/gio/ncarutil/pwrzt.f
	Variables HIGH,WIDE,WHITE, and LNGTH not used (same problem in
	all three files).  (10/02)

math/gsurfit/mkpkg
	Contained a statement $ifeq (USE_GENERIC, YES) which was incorrect,
	as a lower case "yes" is required since $ifeq uses a simple string
	comparison.  (10/02)

math/nlfit/nlzero.gx
	Multiple problems; two calls to aclr had an extra argument, but
	invalid pointer references too.  (10/02)

mkpkg
	The special file list wasn't being used; this was traced to the
	use of a symbol link to the iraf root directory.  One cannot
	reference the iraf root via a link or directory path comparisons
	will fail.  (10/03)

sys/fio/fntgfn.x
	A pattern such as "*%" would match all filenames, a potentially
	disastrous feature if used, say, to delete host filenames containing
	the % character.  % is dangerous because it is just another character
	in a unix filename, but in iraf it is one of the the pattern
	matching metachacters (substring editing).  The filename template
	code was modified to 1) require at least two unescaped % characters
	in a pattern for the % to be recognized as a metacharacter, and
	2) to allow the % character to be escaped (the code was supposed
	to do this but it was only partially implemented).  (10/14)

----------------------------------------------------------------------
Summer 1992 - Mac system upgraded to A/UX 3.0.  New versions of F2C and GCC
installed.  V2.10 upgrade resumed Oct 13-14 1992.  There were a number of
minor changes most of which are probably not worth recording here.  The
main changes were to "f77" and "xc".  f77 is a script in /usr/local/bin
which calls f2c and gcc to act as a Fortran compiler.  This was tuned to
improve the integration of f2c and gcc.  XC was modified to support gcc
better, e.g. omit .o files from compiles to avoid annoying gcc warnings,
use gcc rather than cc for linking, search the right directories, etc.
The new version of GCC (2.2.1) is quite a bit changed from what I used
last year.  I had to make one bug fix to cpp to get source level debugging
to work for .f files compiled with f77/f2c/gcc.

diff/merged the HSI and did a fresh bootstrap, pretty routine.  (10/13)
installed and built tables and noao.  (10/13-14)
diff/merged the DEV directory.  (10/14)

unix/hlib/install
	Changed the code which checks the ownership and permissions of alloc.e.
	On a/ux, ls -l prints the group by default, and this was causing the
	old string comparison to fail.  (11/21/92)

unix/os/zfioks.c
unix/os/zfiotx.c
	Changed some TCSETAF ioctl's to TCSETAW ioctl's.  The TCSETAF ioctl
	claims to flush the output buffer before changing the terminal driver
	settings, but output data was being lost.  Using TCSETAW appears to
	avoid this problem.   (01/13 1993)

unix/hlib/iraf.h
unix/hlib/libc/spp.h
	Changed the values of INDEFR and INDEFD to the following.

	    INDEFR	3.4e38 
	    INDEFD	1.7d308

	and IS_INDEFR and IS_INDEFD were changed to

	    IS_INDEFR	(($1) > 3.3e38)
	    IS_INDEFD	(($1) > 1.6d308)

	This was necessary as the floating point equality tests used to
	check for INDEF were failing using F2C/GCC.  (01/15 1993)

math/iminterp/arbpix.x
math/interp/arbpix.x
noao/astutil/t_setairmass.x
noao/digiphot/photcal/evaluate/phprint.x
noao/mtlocal/cyber/cykeywords.x
noao/mtlocal/cyber/t_ridsfile.x
noao/onedspec/ecidentify/ecline.x
noao/onedspec/irsiids/t_bswitch.x
noao/onedspec/irsiids/t_flatdiv.x
noao/onedspec/irsiids/t_flatfit.x
noao/onedspec/irsiids/t_sums.x
noao/twodspec/apextract/peaks.x
noao/twodspec/multispec/fitclean.x
noao/twodspec/multispec/fitsmooth.x
noao/twodspec/multispec/intgauss5.x
noao/twodspec/multispec/peaks.x
noao/twodspec/multispec/solve.x
noao/twodspec/multispec/t_fitfunc.x
pkg/bench/xctest/lintran.x
pkg/images/lib/sigl2.x
pkg/images/tv/display/sigl2.x
pkg/images/tv/iis/src/sigl2.x
pkg/lists/lintran.x
pkg/plot/crtpict/sigl2.x
pkg/proto/t_imscale.x
sys/clio/clgeti.x
sys/clio/clgetl.x
sys/clio/clgetr.x
sys/clio/clgets.x
sys/clio/clglpi.x
sys/clio/clglpl.x
sys/clio/clglpr.x
sys/clio/clglps.x
sys/clio/clputi.x
sys/gio/calcomp/t_calcomp.x
	The above files were modified to replace "equals-INDEF" style
	constructs with "IS_INDEF" constructs.  (01/15)

unix/hlib/install
	Added a number of "rm -f $TEMP" statements to delete any old $TEMP
	files before attempting to create new ones.  (2/01)

unix/os/zzstrt.c
        Added #ifdef AUX code to enable the IEEE exceptions in the 68882.
        There is no A/UX support for this so it had to be done in assembler
        by writing to the FP control register.  (3/09 1993)

unix/os/zxwhen.c
        Added #ifdef AUX code to decode SIGFPE and print error messages
        appropriate to the exception.  There is no A/UX support for this so
        it was necessary to write assembler to read the FP status register
        and test which exception occurred.  (3/09)