convert gcc12 -O1 into -Wno-error=clobbered.

parser.c wants all the optimisation, and this is very likely a
false positive.

the parser.c longjmp vs gcc12 issue affects a few ports,
make the workaround global.

use -O1 on sh3, GCC 12 and parser.c.

this triggers clobbered vs. longjmp/setjmp warnings with -Os that sh3 uses.

sh: remove no-op 'continue' from do-while-0 loop

With Clang, the only change to the binary are the line number changes
from __LINE__, GCC generates a bit different code.

No functional change.

bin: in builds with MKLINT=yes, run lint on all programs

sh: ignore lint error about 'continue' in 'do while' loop

exec.c(575): error: continue in 'do ... while (0)' loop [323]
jobs.c(203): error: continue in 'do ... while (0)' loop [323]

It is certainly a rarely used feature, I saw it the first time today and
had to look up its meaning in the C standard. But after that, I don't
see why a 'continue' statement in a 'do while' loop should be an error.
Maybe a warning since up to now I thought that 'continue' would jump
back to the top of the loop, while it really jumps to the bottom of the
loop body, for all 3 kinds of loops.

Add -I to find filecomplete.h

Use the date tool

branches: 1.115.6;

Change the (commented out) setting of -DDEBUG to the form that
is most likely to be useful if someone other than me wants to
build a DEBUG shell. NFC (it is a comment in a Makefile!)

branches: 1.114.2;
use SUBDIR.roff suggested by uwe@

branches: 1.113.4;

Implement a bunch of new shell environment variables. many mostly useful
in prompts when expanded at prompt time, but all available for general use.
Many of the new ones are not available in SMALL shells (they work as normal
if assigned, but the shell does not set or use them - and there is no magic
in a SMALL shell (usually for install media.))

I am an idiot... revert the previous unintended commit.

Improve the (new) LINENO section, markup changes (with thanks to wiz@ for
assistace) and some better wording in a few placed.

branches: 1.110.2;

More DEBUG mode changes. As usual, read the source if you care.

Redo mkoptions.sh .. much better this way, now fully automated
option sorting (no longer required option.list to be manually
sorted by long option name) and properly handles conditional
options. Cleaner output format as well.

This allows option.list to be reordered to group related options
together ... also added more comments to it.

Arrange for set -o and $- output to be sorted, rather than more
or less random (and becoming worse as more options are added.)
Since the data is known at compile time, sort at compile time,
rather than at run time.

Drop the lex library - hasn't been needed since the airthmetic
upgrade a while ago (this should make no difference to anything
other than a minor - very minor - build time speedup, ld is
smart enough to relaise that nothing from the lex library was
needed, and the executable contains no reference to it, even
befor ethis change.)

Fix a minor omission in last...

Make ${NETBSD_SHELL} value include (a human recognisable form of)
MKREPRO_TIMESTAMP (as an additional word in the value, with a "BUILD:" prefix)
if it is set during the build. (Trailing 00 pairs in the time are removed).

While here, throw in some extra words that list the compilation
options used which alter sh behaviour (mostly by removing stuff.)
Usually that will only be noticed in a SMALL shell compiled for
install media, or similar - none of the others (not that there
are many) are ever changed from the default in a normal build
(default settings are just omitted.) This also allows scripts
to tell if they are running in a DEBUG shell, which can sometimes
make debugging easier.

branches: 1.104.2;


Finish support for all required $(( )) (shell arithmetic) operators,
closing PR bin/50958

That meant adding the assignment operators ('=', and all of the +=, *= ...)
Currently, ++, --, and ',' are not implemented (none of those are required
by posix) but support for them (most likely ',' first) might be added later.

To do this, I removed the yacc/lex arithmetic parser completely, and
replaced it with a hand written recursive descent parser, that I obtained
from FreeBSD, who earlier had obtained it from dash (Herbert Xu).

While doing the import, I cleaned up the sources (changed some file names
to avoid requiring a clean build, or signifigant surgery to the obj
directories if "build.sh -u" was to be used - "build.sh -u" should work
fine as it is now) removed some dashisms, applied some KNF, ...

Have "make clean" remove sh.html1 and adapt it to clean trace files
the way they have been generated the past 20 years or so...

branches: 1.102.2; 1.102.4;
Improve debugging, from kre (I hooked it to the build).

Include printf by default even for SMALL builds. It is used e.g. by
dhcpcd and as such required by most ramdisk images. Allow turning it off
again by TINYPROG.

branches: 1.100.2;
remove .if make(install)

branches: 1.99.8;
Adjust everything under src (but outside src/tools) to use
the TOOLDIR version of libnbcompat, associated include files,
and associated defs.mk file, instead of the version from the
.OBJDIR of src/tools/compat. This should fix PR 47188.

branches: 1.98.2; 1.98.8;
document another non-literal format string

Document non-literal formats

Move the savehandler assignment before setjmp() to avoid triggering
warnings about use before initialization with clang.

Default to -Wno-sign-compare -Wno-pointer-sign for clang.
Push -Wno-array-bounds down to the cases that depend on it.
Selectively disable warnings for 3rd party software or non-trivial
issues to be reviewed later to get clang -Werror to build most of the
tree.

increase commented out debugging.

add bsd.subdir.mk

build the tutoral

When using -lcurses, you also need -lterminfo.
This fixes the build for sun2, and also builds with LDSTATIC=-static,
since archive libraries don't record inter-library dependencies.

Userland now builds and uses terminfo instead of termcap.

OK: core@, jdc@

use .ORDER for rules that create multiple files.

Rewrite file generation rules using ${GENCMD}. No functional changes intended.

Define dependencies of arith.[ch] on arith.y.

use flex options instead of #defines

define YY_NO_INPUT where appropriate, from Kurt J. Lidl per PR misc/41160

Default to WARNS=4 (except for rcp & ksh)

branches: 1.83.4;
Pass SED=${TOOL_SED:Q} in the environment to scripts run during the build.

Use ${TOOL_AWK} instead of ${AWK} or plain "awk" in make commands.
Pass AWK=${TOOL_AWK:Q} to shell scripts that use awk.

WARNS=4

sprinkle a little const, and now everything compiles with WARNS=3

Pass WARNS=3

don't include the printf builtin if we are SMALL; saves 10K.

Put a syntax.c under CVS instead of building if with the mksyntax program.
Kill mksyntax.c - no longer possible to get the 'wrong sort of chars'.
/bin/sh now has no helper binaries.
syntax.c uses C99 initialisers, run time initialisation could be used
for systems where the compiler doesn't support them.
I've used some #defines to help make this possible - but writing the code
starts making it rather messy.

Put syntax.h under CVS instead of having it generated by mksyntax.
Use CHAR_MIN (from limits.h) to determine whether target char are signed
or unsigned - the syntax tables will not be indexed properly.
Rip out all the stuff from mksyntax.c that wrote syntax.h.
syntax.c can stiff be generated incorrectly...

Replace mkinit.c with mkinit.sh
Build mksyntax directly from mksyntax.c so that the -DTARGET_CHAR=xxx
is applied when it is build.
OTOH mksyntax is broken as it tries to determine properties of the
target system by running code on the build system.

Replace the C program mknodes.c with a shell script mknodes.sh
(mkinit and mksyntax may also die soon...)

Improve how various "simple" host tools are built and invoked.

Rework how MAKEVERBOSE operates:

* Don't bother prefixing commands with a line of ${_MKCMD}\
and instead rely upon "make -s". This is less intrusive on
all the Makefiles than the former. Idea from David Laight.

* Rename the variables use to print messages. The scheme now is:
_MKMSG_FOO Run _MKMSG 'foo'
_MKTARGET_FOO Run _MKMSG_FOO ${.TARGET}
From discussion with Alistair Crooks.

rework to use the newer _MKMSGCREATE (et al) macros

improve MAKEVERBOSE message for HOST_LINKed tools

Support MAKEVERBOSE (XXX: mksyntax is noisy when MAKEVERBOSE=0).
Use DPSRCS appropriately.

Link the host tools against tools/compat -lnbcompat since someone decided to
use strlcpy() and snprintf() in the host tools...

Should fix part of [toolchain/22504], and build problems on other
platforms that don't have strlcpy() or snprintf()...

Add 'trace' to CLEANFILES, generated when debug is enabled.

Fix problems with parallel makes.

Use ${HOST_SH}

If building as a CRUNCHEDPROG, use "lex -L" and "yacc -l" to suppress #line
generation. This may solve [bin/20637].

Support command -p, -v and -V as posix
Stop temporary PATH assigments messing up hash table
Fix sh -c -e "echo $0 $*" -a x (as posix)
(agreed by christos)

allow this to be compiled with unsigned-chars.

Fixes from David Laight:
- ansification
- format of output of jobs command (etc)
- job identiers %+, %- etc
- $? and $(...)
- correct quoting of output of set, export -p and readonly -p
- differentiation between nornal and 'posix special' builtins
- correct behaviour (posix) for errors on builtins and special builtins
- builtin printf and kill
- set -o debug (if compiled with DEBUG)
- cd src obj (as ksh - too useful to do without)
- unset -e name, remove non-readonly variable from export list.
(so I could unset -e PS1 before running the test shell...)

Use signed char to replace int8_t, not just char. Should fix macppc
cross-build problems introduced in rev 1.59.

Pointed out by Valeriy E. Ushakov uwe at ptc dot spbu dot ru on
tech-toolchain.

Use "unsigned char" and "char" instead of "u_int8_t" and "int8_t"
for TARGET_CHAR when building mksyntax. This isn't perfect, but
it lets the host tool work on non-BSD systems without completely
redoing how sh is built.

Use ${NETBSDSRCDIR}/some/path instead of ${.CURDIR}/../../some/path (etc).

branches: 1.57.2;
The printf builtin has been "temporarily" disabled for eight years. Remove
its directory from .PATH to avoid confusion.

back this directory up a day, systems won't even boot (rc.subr splodes)

suggested back-to-the-drawing-board test: $ echo "${PWD:-notlikely}"

Add a commented out -DDEBUG in CPPFLAGS.

.ifdef SMALLPROG, -DSMALL

change from WARNS?=1 to WARNS?=2 for bin/

Use ${MACHINE_CPU} == "arm" to test for ARMishness.

arm26 has unsigned chars too.

PR/9847: Geoff C. Wing: Make test(1) a builtin.

compile with WARNS = 2

branches: 1.48.2;
Remove "arith.h" while cleaning.

PR/5577: Craig M. Chase: sh does not build with PARALLEL set.
- Added YHEADER in Makefile, removed arith.h and adjusted the sources.

The recent cross-compile changes broke the build of x_sh. Properly use
${.IMPSRC} instead of the broken ${.CURDIR}/thing.c.

We don't generate .o's anymore for helper programs, so don't CLEANFILES them.

Patch to make sh cross-compile right. mksyntax reports unsigned char for
powerpc, and signed for m68k & i386.

move OBJS depenency on built headers to after include of bsd.prog.mk, so
that things are built in the right order on 'make cleandir && make' (i.e.
so that the headers are properly built).

* remove CFLAGS+=-w for powerpc (added in 1.26):
- it was in the wrong place
- makefiles shouldn't override CFLAGS; only CPPFLAGS and COPTS
- christos fixed unsigned char stuff in 1.33 which should
remove the need for -w anyway
* move .include <bsd.prog.mk> to EOF

.y.c <sys.mk> rule fixes. Don't create a y.tab.h file unless asked for,
and use smarter creation of the header file.

Another try to make this work again. Lets hope that the we don't need a 4th
fix for it.

make this work again when . is not in $PATH

Pr/5221: Jason Thorpe: Simplify sh Makefile, so that builts from other
directories work.

BSD4_4 is a standard symbol in <sys/param.h>; make sure that files
that need this defined, include <sys/param.h> and don't define it in
the Makefile. Add a comment to that effect.

Define BSD4_4: quad_t's in struct rlimit;

branches: 1.35.2;
CFLAGS->CPPFLAGS

Remove WARNS=1 from all the subdirectory Makefiles, and add it to Makefile.inc
now that all /bin has been cleaned.

Make the syntax tables work on machines where characters are unsigned.

Don't roll own rules to build helper programs.
Add WARNS

add auto-generated token.h to dependancy for ${OBJS}.
not everyone runs "make depend" ...

Add mkinit.o mknodes.o mksyntax.o to CLEANFILES

Eliminate bogus redefinitions of standard targets.

Back out the .PATH.c changes. The .depend problem (and others)
will be fixed using the new .NOPATH make feature instead.

Use .PATH.c: ...

- XXX Inhibit warnings on PowerPC for now - there are lots of
"char is unsigned" problems here.
- Add rules for mkinit, mknodes, and mksyntax that use the HOST_*
facilities, for cross-compiling.

add builtins.h to the list of (built) headers depended on by ${OBJS}, so
make from 'cleandir' works.

PR/2808: Depend and clean fixes from FreeBSD

branches: 1.23.4;
Fix problems with the way init.o is built:
* Prevent gratuitous rebuilds when nothing has changed.
* Make sure it's rebuilt if a .h file is updated.
From Mike Long, PR 1454.

Parallel make fixes.

Add a DPADD.

Merge in my changes from vangogh, and fix the x=`false`; echo $? == 0
bug.

convert to new RCS id conventions.

ulimit builtin (PR #388)

This public domain code, originally by Doug Gwyn, Doug Kingston, Eric
Gisin, and Michael Rendell was ripped from pdksh 5.0.8 and hacked for
use with ash.

Renamed builtins to builtins.def to eliminate make's (incorrect) circular
dependancy between the builtins data file and builtins.c.

The bug only occured when there was no obj directory, and is a result of
NetBSD's better (compared to 4.4lite's) default make rules.

Fixes bug #301.

Add RCS ids.

Exclude `mkinit' from argument list to `mkinit'; this especially causes
trouble when compiling with `-g'.

add back in support for building w/o obj dir. also, add NO_HISTORY
define, which (if you invoke mkbuiltins properly) gets you a sh w/o
history of command line editing (for floppy sh).

Added DPADD.

Use libc's sys_siglist[] instead of building and using our own array of
signal names. (from charles)

temporarily disable printf builtin

sync with 4.4lite

Changed to use make's new .OBJDIR

from Thomas Eberhardt <thomas@mathematik.uni-Bremen.de>:
Some reordering and modifications in the Makefiles for sh, dump,
restore to get dependicies right. The README in /usr/share/mk
states that it's a Bad Thing(tm) to add something after
.include <bsd.prog.mk>, but this seems the only way to get the
dependencies right.

Tweak for cross-compiling.

Use sys_signame[].

Add RCS identifiers, remove some completely useless RCS logs and patchkit
headers, and a few other insignificant changes.

Make sure init.c is touched so it doesn't get rebuilt if we
make again. (Okay, so I did reproduce it.)

changed "Id" to "Header" for rcsids

added rcs ids to all files

branches: 1.1.1;
Initial revision

the parser.c longjmp vs gcc12 issue affects a few ports,
make the workaround global.

use -O1 on sh3, GCC 12 and parser.c.

this triggers clobbered vs. longjmp/setjmp warnings with -Os that sh3 uses.

sh: remove no-op 'continue' from do-while-0 loop

With Clang, the only change to the binary are the line number changes
from __LINE__, GCC generates a bit different code.

No functional change.

bin: in builds with MKLINT=yes, run lint on all programs

sh: ignore lint error about 'continue' in 'do while' loop

exec.c(575): error: continue in 'do ... while (0)' loop [323]
jobs.c(203): error: continue in 'do ... while (0)' loop [323]

It is certainly a rarely used feature, I saw it the first time today and
had to look up its meaning in the C standard. But after that, I don't
see why a 'continue' statement in a 'do while' loop should be an error.
Maybe a warning since up to now I thought that 'continue' would jump
back to the top of the loop, while it really jumps to the bottom of the
loop body, for all 3 kinds of loops.

Add -I to find filecomplete.h

Use the date tool

branches: 1.115.6;

Change the (commented out) setting of -DDEBUG to the form that
is most likely to be useful if someone other than me wants to
build a DEBUG shell. NFC (it is a comment in a Makefile!)

branches: 1.114.2;
use SUBDIR.roff suggested by uwe@

branches: 1.113.4;

Implement a bunch of new shell environment variables. many mostly useful
in prompts when expanded at prompt time, but all available for general use.
Many of the new ones are not available in SMALL shells (they work as normal
if assigned, but the shell does not set or use them - and there is no magic
in a SMALL shell (usually for install media.))

I am an idiot... revert the previous unintended commit.

Improve the (new) LINENO section, markup changes (with thanks to wiz@ for
assistace) and some better wording in a few placed.

branches: 1.110.2;

More DEBUG mode changes. As usual, read the source if you care.

Redo mkoptions.sh .. much better this way, now fully automated
option sorting (no longer required option.list to be manually
sorted by long option name) and properly handles conditional
options. Cleaner output format as well.

This allows option.list to be reordered to group related options
together ... also added more comments to it.

Arrange for set -o and $- output to be sorted, rather than more
or less random (and becoming worse as more options are added.)
Since the data is known at compile time, sort at compile time,
rather than at run time.

Drop the lex library - hasn't been needed since the airthmetic
upgrade a while ago (this should make no difference to anything
other than a minor - very minor - build time speedup, ld is
smart enough to relaise that nothing from the lex library was
needed, and the executable contains no reference to it, even
befor ethis change.)

Fix a minor omission in last...

Make ${NETBSD_SHELL} value include (a human recognisable form of)
MKREPRO_TIMESTAMP (as an additional word in the value, with a "BUILD:" prefix)
if it is set during the build. (Trailing 00 pairs in the time are removed).

While here, throw in some extra words that list the compilation
options used which alter sh behaviour (mostly by removing stuff.)
Usually that will only be noticed in a SMALL shell compiled for
install media, or similar - none of the others (not that there
are many) are ever changed from the default in a normal build
(default settings are just omitted.) This also allows scripts
to tell if they are running in a DEBUG shell, which can sometimes
make debugging easier.

branches: 1.104.2;


Finish support for all required $(( )) (shell arithmetic) operators,
closing PR bin/50958

That meant adding the assignment operators ('=', and all of the +=, *= ...)
Currently, ++, --, and ',' are not implemented (none of those are required
by posix) but support for them (most likely ',' first) might be added later.

To do this, I removed the yacc/lex arithmetic parser completely, and
replaced it with a hand written recursive descent parser, that I obtained
from FreeBSD, who earlier had obtained it from dash (Herbert Xu).

While doing the import, I cleaned up the sources (changed some file names
to avoid requiring a clean build, or signifigant surgery to the obj
directories if "build.sh -u" was to be used - "build.sh -u" should work
fine as it is now) removed some dashisms, applied some KNF, ...

Have "make clean" remove sh.html1 and adapt it to clean trace files
the way they have been generated the past 20 years or so...

branches: 1.102.2; 1.102.4;
Improve debugging, from kre (I hooked it to the build).

Include printf by default even for SMALL builds. It is used e.g. by
dhcpcd and as such required by most ramdisk images. Allow turning it off
again by TINYPROG.

branches: 1.100.2;
remove .if make(install)

branches: 1.99.8;
Adjust everything under src (but outside src/tools) to use
the TOOLDIR version of libnbcompat, associated include files,
and associated defs.mk file, instead of the version from the
.OBJDIR of src/tools/compat. This should fix PR 47188.

branches: 1.98.2; 1.98.8;
document another non-literal format string

Document non-literal formats

Move the savehandler assignment before setjmp() to avoid triggering
warnings about use before initialization with clang.

Default to -Wno-sign-compare -Wno-pointer-sign for clang.
Push -Wno-array-bounds down to the cases that depend on it.
Selectively disable warnings for 3rd party software or non-trivial
issues to be reviewed later to get clang -Werror to build most of the
tree.

increase commented out debugging.

add bsd.subdir.mk

build the tutoral

When using -lcurses, you also need -lterminfo.
This fixes the build for sun2, and also builds with LDSTATIC=-static,
since archive libraries don't record inter-library dependencies.

Userland now builds and uses terminfo instead of termcap.

OK: core@, jdc@

use .ORDER for rules that create multiple files.

Rewrite file generation rules using ${GENCMD}. No functional changes intended.

Define dependencies of arith.[ch] on arith.y.

use flex options instead of #defines

define YY_NO_INPUT where appropriate, from Kurt J. Lidl per PR misc/41160

Default to WARNS=4 (except for rcp & ksh)

branches: 1.83.4;
Pass SED=${TOOL_SED:Q} in the environment to scripts run during the build.

Use ${TOOL_AWK} instead of ${AWK} or plain "awk" in make commands.
Pass AWK=${TOOL_AWK:Q} to shell scripts that use awk.

WARNS=4

sprinkle a little const, and now everything compiles with WARNS=3

Pass WARNS=3

don't include the printf builtin if we are SMALL; saves 10K.

Put a syntax.c under CVS instead of building if with the mksyntax program.
Kill mksyntax.c - no longer possible to get the 'wrong sort of chars'.
/bin/sh now has no helper binaries.
syntax.c uses C99 initialisers, run time initialisation could be used
for systems where the compiler doesn't support them.
I've used some #defines to help make this possible - but writing the code
starts making it rather messy.

Put syntax.h under CVS instead of having it generated by mksyntax.
Use CHAR_MIN (from limits.h) to determine whether target char are signed
or unsigned - the syntax tables will not be indexed properly.
Rip out all the stuff from mksyntax.c that wrote syntax.h.
syntax.c can stiff be generated incorrectly...

Replace mkinit.c with mkinit.sh
Build mksyntax directly from mksyntax.c so that the -DTARGET_CHAR=xxx
is applied when it is build.
OTOH mksyntax is broken as it tries to determine properties of the
target system by running code on the build system.

Replace the C program mknodes.c with a shell script mknodes.sh
(mkinit and mksyntax may also die soon...)

Improve how various "simple" host tools are built and invoked.

Rework how MAKEVERBOSE operates:

* Don't bother prefixing commands with a line of ${_MKCMD}\
and instead rely upon "make -s". This is less intrusive on
all the Makefiles than the former. Idea from David Laight.

* Rename the variables use to print messages. The scheme now is:
_MKMSG_FOO Run _MKMSG 'foo'
_MKTARGET_FOO Run _MKMSG_FOO ${.TARGET}
From discussion with Alistair Crooks.

rework to use the newer _MKMSGCREATE (et al) macros

improve MAKEVERBOSE message for HOST_LINKed tools

Support MAKEVERBOSE (XXX: mksyntax is noisy when MAKEVERBOSE=0).
Use DPSRCS appropriately.

Link the host tools against tools/compat -lnbcompat since someone decided to
use strlcpy() and snprintf() in the host tools...

Should fix part of [toolchain/22504], and build problems on other
platforms that don't have strlcpy() or snprintf()...

Add 'trace' to CLEANFILES, generated when debug is enabled.

Fix problems with parallel makes.

Use ${HOST_SH}

If building as a CRUNCHEDPROG, use "lex -L" and "yacc -l" to suppress #line
generation. This may solve [bin/20637].

Support command -p, -v and -V as posix
Stop temporary PATH assigments messing up hash table
Fix sh -c -e "echo $0 $*" -a x (as posix)
(agreed by christos)

allow this to be compiled with unsigned-chars.

Fixes from David Laight:
- ansification
- format of output of jobs command (etc)
- job identiers %+, %- etc
- $? and $(...)
- correct quoting of output of set, export -p and readonly -p
- differentiation between nornal and 'posix special' builtins
- correct behaviour (posix) for errors on builtins and special builtins
- builtin printf and kill
- set -o debug (if compiled with DEBUG)
- cd src obj (as ksh - too useful to do without)
- unset -e name, remove non-readonly variable from export list.
(so I could unset -e PS1 before running the test shell...)

Use signed char to replace int8_t, not just char. Should fix macppc
cross-build problems introduced in rev 1.59.

Pointed out by Valeriy E. Ushakov uwe at ptc dot spbu dot ru on
tech-toolchain.

Use "unsigned char" and "char" instead of "u_int8_t" and "int8_t"
for TARGET_CHAR when building mksyntax. This isn't perfect, but
it lets the host tool work on non-BSD systems without completely
redoing how sh is built.

Use ${NETBSDSRCDIR}/some/path instead of ${.CURDIR}/../../some/path (etc).

branches: 1.57.2;
The printf builtin has been "temporarily" disabled for eight years. Remove
its directory from .PATH to avoid confusion.

back this directory up a day, systems won't even boot (rc.subr splodes)

suggested back-to-the-drawing-board test: $ echo "${PWD:-notlikely}"

Add a commented out -DDEBUG in CPPFLAGS.

.ifdef SMALLPROG, -DSMALL

change from WARNS?=1 to WARNS?=2 for bin/

Use ${MACHINE_CPU} == "arm" to test for ARMishness.

arm26 has unsigned chars too.

PR/9847: Geoff C. Wing: Make test(1) a builtin.

compile with WARNS = 2

branches: 1.48.2;
Remove "arith.h" while cleaning.

PR/5577: Craig M. Chase: sh does not build with PARALLEL set.
- Added YHEADER in Makefile, removed arith.h and adjusted the sources.

The recent cross-compile changes broke the build of x_sh. Properly use
${.IMPSRC} instead of the broken ${.CURDIR}/thing.c.

We don't generate .o's anymore for helper programs, so don't CLEANFILES them.

Patch to make sh cross-compile right. mksyntax reports unsigned char for
powerpc, and signed for m68k & i386.

move OBJS depenency on built headers to after include of bsd.prog.mk, so
that things are built in the right order on 'make cleandir && make' (i.e.
so that the headers are properly built).

* remove CFLAGS+=-w for powerpc (added in 1.26):
- it was in the wrong place
- makefiles shouldn't override CFLAGS; only CPPFLAGS and COPTS
- christos fixed unsigned char stuff in 1.33 which should
remove the need for -w anyway
* move .include <bsd.prog.mk> to EOF

.y.c <sys.mk> rule fixes. Don't create a y.tab.h file unless asked for,
and use smarter creation of the header file.

Another try to make this work again. Lets hope that the we don't need a 4th
fix for it.

make this work again when . is not in $PATH

Pr/5221: Jason Thorpe: Simplify sh Makefile, so that builts from other
directories work.

BSD4_4 is a standard symbol in <sys/param.h>; make sure that files
that need this defined, include <sys/param.h> and don't define it in
the Makefile. Add a comment to that effect.

Define BSD4_4: quad_t's in struct rlimit;

branches: 1.35.2;
CFLAGS->CPPFLAGS

Remove WARNS=1 from all the subdirectory Makefiles, and add it to Makefile.inc
now that all /bin has been cleaned.

Make the syntax tables work on machines where characters are unsigned.

Don't roll own rules to build helper programs.
Add WARNS

add auto-generated token.h to dependancy for ${OBJS}.
not everyone runs "make depend" ...

Add mkinit.o mknodes.o mksyntax.o to CLEANFILES

Eliminate bogus redefinitions of standard targets.

Back out the .PATH.c changes. The .depend problem (and others)
will be fixed using the new .NOPATH make feature instead.

Use .PATH.c: ...

- XXX Inhibit warnings on PowerPC for now - there are lots of
"char is unsigned" problems here.
- Add rules for mkinit, mknodes, and mksyntax that use the HOST_*
facilities, for cross-compiling.

add builtins.h to the list of (built) headers depended on by ${OBJS}, so
make from 'cleandir' works.

PR/2808: Depend and clean fixes from FreeBSD

branches: 1.23.4;
Fix problems with the way init.o is built:
* Prevent gratuitous rebuilds when nothing has changed.
* Make sure it's rebuilt if a .h file is updated.
From Mike Long, PR 1454.

Parallel make fixes.

Add a DPADD.

Merge in my changes from vangogh, and fix the x=`false`; echo $? == 0
bug.

convert to new RCS id conventions.

ulimit builtin (PR #388)

This public domain code, originally by Doug Gwyn, Doug Kingston, Eric
Gisin, and Michael Rendell was ripped from pdksh 5.0.8 and hacked for
use with ash.

Renamed builtins to builtins.def to eliminate make's (incorrect) circular
dependancy between the builtins data file and builtins.c.

The bug only occured when there was no obj directory, and is a result of
NetBSD's better (compared to 4.4lite's) default make rules.

Fixes bug #301.

Add RCS ids.

Exclude `mkinit' from argument list to `mkinit'; this especially causes
trouble when compiling with `-g'.

add back in support for building w/o obj dir. also, add NO_HISTORY
define, which (if you invoke mkbuiltins properly) gets you a sh w/o
history of command line editing (for floppy sh).

Added DPADD.

Use libc's sys_siglist[] instead of building and using our own array of
signal names. (from charles)

temporarily disable printf builtin

sync with 4.4lite

Changed to use make's new .OBJDIR

from Thomas Eberhardt <thomas@mathematik.uni-Bremen.de>:
Some reordering and modifications in the Makefiles for sh, dump,
restore to get dependicies right. The README in /usr/share/mk
states that it's a Bad Thing(tm) to add something after
.include <bsd.prog.mk>, but this seems the only way to get the
dependencies right.

Tweak for cross-compiling.

Use sys_signame[].

Add RCS identifiers, remove some completely useless RCS logs and patchkit
headers, and a few other insignificant changes.

Make sure init.c is touched so it doesn't get rebuilt if we
make again. (Okay, so I did reproduce it.)

changed "Id" to "Header" for rcsids

added rcs ids to all files

branches: 1.1.1;
Initial revision

use -O1 on sh3, GCC 12 and parser.c.

this triggers clobbered vs. longjmp/setjmp warnings with -Os that sh3 uses.

sh: remove no-op 'continue' from do-while-0 loop

With Clang, the only change to the binary are the line number changes
from __LINE__, GCC generates a bit different code.

No functional change.

bin: in builds with MKLINT=yes, run lint on all programs

sh: ignore lint error about 'continue' in 'do while' loop

exec.c(575): error: continue in 'do ... while (0)' loop [323]
jobs.c(203): error: continue in 'do ... while (0)' loop [323]

It is certainly a rarely used feature, I saw it the first time today and
had to look up its meaning in the C standard. But after that, I don't
see why a 'continue' statement in a 'do while' loop should be an error.
Maybe a warning since up to now I thought that 'continue' would jump
back to the top of the loop, while it really jumps to the bottom of the
loop body, for all 3 kinds of loops.

Add -I to find filecomplete.h

Use the date tool

branches: 1.115.6;

Change the (commented out) setting of -DDEBUG to the form that
is most likely to be useful if someone other than me wants to
build a DEBUG shell. NFC (it is a comment in a Makefile!)

branches: 1.114.2;
use SUBDIR.roff suggested by uwe@

branches: 1.113.4;

Implement a bunch of new shell environment variables. many mostly useful
in prompts when expanded at prompt time, but all available for general use.
Many of the new ones are not available in SMALL shells (they work as normal
if assigned, but the shell does not set or use them - and there is no magic
in a SMALL shell (usually for install media.))

I am an idiot... revert the previous unintended commit.

Improve the (new) LINENO section, markup changes (with thanks to wiz@ for
assistace) and some better wording in a few placed.

branches: 1.110.2;

More DEBUG mode changes. As usual, read the source if you care.

Redo mkoptions.sh .. much better this way, now fully automated
option sorting (no longer required option.list to be manually
sorted by long option name) and properly handles conditional
options. Cleaner output format as well.

This allows option.list to be reordered to group related options
together ... also added more comments to it.

Arrange for set -o and $- output to be sorted, rather than more
or less random (and becoming worse as more options are added.)
Since the data is known at compile time, sort at compile time,
rather than at run time.

Drop the lex library - hasn't been needed since the airthmetic
upgrade a while ago (this should make no difference to anything
other than a minor - very minor - build time speedup, ld is
smart enough to relaise that nothing from the lex library was
needed, and the executable contains no reference to it, even
befor ethis change.)

Fix a minor omission in last...

Make ${NETBSD_SHELL} value include (a human recognisable form of)
MKREPRO_TIMESTAMP (as an additional word in the value, with a "BUILD:" prefix)
if it is set during the build. (Trailing 00 pairs in the time are removed).

While here, throw in some extra words that list the compilation
options used which alter sh behaviour (mostly by removing stuff.)
Usually that will only be noticed in a SMALL shell compiled for
install media, or similar - none of the others (not that there
are many) are ever changed from the default in a normal build
(default settings are just omitted.) This also allows scripts
to tell if they are running in a DEBUG shell, which can sometimes
make debugging easier.

branches: 1.104.2;


Finish support for all required $(( )) (shell arithmetic) operators,
closing PR bin/50958

That meant adding the assignment operators ('=', and all of the +=, *= ...)
Currently, ++, --, and ',' are not implemented (none of those are required
by posix) but support for them (most likely ',' first) might be added later.

To do this, I removed the yacc/lex arithmetic parser completely, and
replaced it with a hand written recursive descent parser, that I obtained
from FreeBSD, who earlier had obtained it from dash (Herbert Xu).

While doing the import, I cleaned up the sources (changed some file names
to avoid requiring a clean build, or signifigant surgery to the obj
directories if "build.sh -u" was to be used - "build.sh -u" should work
fine as it is now) removed some dashisms, applied some KNF, ...

Have "make clean" remove sh.html1 and adapt it to clean trace files
the way they have been generated the past 20 years or so...

branches: 1.102.2; 1.102.4;
Improve debugging, from kre (I hooked it to the build).

Include printf by default even for SMALL builds. It is used e.g. by
dhcpcd and as such required by most ramdisk images. Allow turning it off
again by TINYPROG.

branches: 1.100.2;
remove .if make(install)

branches: 1.99.8;
Adjust everything under src (but outside src/tools) to use
the TOOLDIR version of libnbcompat, associated include files,
and associated defs.mk file, instead of the version from the
.OBJDIR of src/tools/compat. This should fix PR 47188.

branches: 1.98.2; 1.98.8;
document another non-literal format string

Document non-literal formats

Move the savehandler assignment before setjmp() to avoid triggering
warnings about use before initialization with clang.

Default to -Wno-sign-compare -Wno-pointer-sign for clang.
Push -Wno-array-bounds down to the cases that depend on it.
Selectively disable warnings for 3rd party software or non-trivial
issues to be reviewed later to get clang -Werror to build most of the
tree.

increase commented out debugging.

add bsd.subdir.mk

build the tutoral

When using -lcurses, you also need -lterminfo.
This fixes the build for sun2, and also builds with LDSTATIC=-static,
since archive libraries don't record inter-library dependencies.

Userland now builds and uses terminfo instead of termcap.

OK: core@, jdc@

use .ORDER for rules that create multiple files.

Rewrite file generation rules using ${GENCMD}. No functional changes intended.

Define dependencies of arith.[ch] on arith.y.

use flex options instead of #defines

define YY_NO_INPUT where appropriate, from Kurt J. Lidl per PR misc/41160

Default to WARNS=4 (except for rcp & ksh)

branches: 1.83.4;
Pass SED=${TOOL_SED:Q} in the environment to scripts run during the build.

Use ${TOOL_AWK} instead of ${AWK} or plain "awk" in make commands.
Pass AWK=${TOOL_AWK:Q} to shell scripts that use awk.

WARNS=4

sprinkle a little const, and now everything compiles with WARNS=3

Pass WARNS=3

don't include the printf builtin if we are SMALL; saves 10K.

Put a syntax.c under CVS instead of building if with the mksyntax program.
Kill mksyntax.c - no longer possible to get the 'wrong sort of chars'.
/bin/sh now has no helper binaries.
syntax.c uses C99 initialisers, run time initialisation could be used
for systems where the compiler doesn't support them.
I've used some #defines to help make this possible - but writing the code
starts making it rather messy.

Put syntax.h under CVS instead of having it generated by mksyntax.
Use CHAR_MIN (from limits.h) to determine whether target char are signed
or unsigned - the syntax tables will not be indexed properly.
Rip out all the stuff from mksyntax.c that wrote syntax.h.
syntax.c can stiff be generated incorrectly...

Replace mkinit.c with mkinit.sh
Build mksyntax directly from mksyntax.c so that the -DTARGET_CHAR=xxx
is applied when it is build.
OTOH mksyntax is broken as it tries to determine properties of the
target system by running code on the build system.

Replace the C program mknodes.c with a shell script mknodes.sh
(mkinit and mksyntax may also die soon...)

Improve how various "simple" host tools are built and invoked.

Rework how MAKEVERBOSE operates:

* Don't bother prefixing commands with a line of ${_MKCMD}\
and instead rely upon "make -s". This is less intrusive on
all the Makefiles than the former. Idea from David Laight.

* Rename the variables use to print messages. The scheme now is:
_MKMSG_FOO Run _MKMSG 'foo'
_MKTARGET_FOO Run _MKMSG_FOO ${.TARGET}
From discussion with Alistair Crooks.

rework to use the newer _MKMSGCREATE (et al) macros

improve MAKEVERBOSE message for HOST_LINKed tools

Support MAKEVERBOSE (XXX: mksyntax is noisy when MAKEVERBOSE=0).
Use DPSRCS appropriately.

Link the host tools against tools/compat -lnbcompat since someone decided to
use strlcpy() and snprintf() in the host tools...

Should fix part of [toolchain/22504], and build problems on other
platforms that don't have strlcpy() or snprintf()...

Add 'trace' to CLEANFILES, generated when debug is enabled.

Fix problems with parallel makes.

Use ${HOST_SH}

If building as a CRUNCHEDPROG, use "lex -L" and "yacc -l" to suppress #line
generation. This may solve [bin/20637].

Support command -p, -v and -V as posix
Stop temporary PATH assigments messing up hash table
Fix sh -c -e "echo $0 $*" -a x (as posix)
(agreed by christos)

allow this to be compiled with unsigned-chars.

Fixes from David Laight:
- ansification
- format of output of jobs command (etc)
- job identiers %+, %- etc
- $? and $(...)
- correct quoting of output of set, export -p and readonly -p
- differentiation between nornal and 'posix special' builtins
- correct behaviour (posix) for errors on builtins and special builtins
- builtin printf and kill
- set -o debug (if compiled with DEBUG)
- cd src obj (as ksh - too useful to do without)
- unset -e name, remove non-readonly variable from export list.
(so I could unset -e PS1 before running the test shell...)

Use signed char to replace int8_t, not just char. Should fix macppc
cross-build problems introduced in rev 1.59.

Pointed out by Valeriy E. Ushakov uwe at ptc dot spbu dot ru on
tech-toolchain.

Use "unsigned char" and "char" instead of "u_int8_t" and "int8_t"
for TARGET_CHAR when building mksyntax. This isn't perfect, but
it lets the host tool work on non-BSD systems without completely
redoing how sh is built.

Use ${NETBSDSRCDIR}/some/path instead of ${.CURDIR}/../../some/path (etc).

branches: 1.57.2;
The printf builtin has been "temporarily" disabled for eight years. Remove
its directory from .PATH to avoid confusion.

back this directory up a day, systems won't even boot (rc.subr splodes)

suggested back-to-the-drawing-board test: $ echo "${PWD:-notlikely}"

Add a commented out -DDEBUG in CPPFLAGS.

.ifdef SMALLPROG, -DSMALL

change from WARNS?=1 to WARNS?=2 for bin/

Use ${MACHINE_CPU} == "arm" to test for ARMishness.

arm26 has unsigned chars too.

PR/9847: Geoff C. Wing: Make test(1) a builtin.

compile with WARNS = 2

branches: 1.48.2;
Remove "arith.h" while cleaning.

PR/5577: Craig M. Chase: sh does not build with PARALLEL set.
- Added YHEADER in Makefile, removed arith.h and adjusted the sources.

The recent cross-compile changes broke the build of x_sh. Properly use
${.IMPSRC} instead of the broken ${.CURDIR}/thing.c.

We don't generate .o's anymore for helper programs, so don't CLEANFILES them.

Patch to make sh cross-compile right. mksyntax reports unsigned char for
powerpc, and signed for m68k & i386.

move OBJS depenency on built headers to after include of bsd.prog.mk, so
that things are built in the right order on 'make cleandir && make' (i.e.
so that the headers are properly built).

* remove CFLAGS+=-w for powerpc (added in 1.26):
- it was in the wrong place
- makefiles shouldn't override CFLAGS; only CPPFLAGS and COPTS
- christos fixed unsigned char stuff in 1.33 which should
remove the need for -w anyway
* move .include <bsd.prog.mk> to EOF

.y.c <sys.mk> rule fixes. Don't create a y.tab.h file unless asked for,
and use smarter creation of the header file.

Another try to make this work again. Lets hope that the we don't need a 4th
fix for it.

make this work again when . is not in $PATH

Pr/5221: Jason Thorpe: Simplify sh Makefile, so that builts from other
directories work.

BSD4_4 is a standard symbol in <sys/param.h>; make sure that files
that need this defined, include <sys/param.h> and don't define it in
the Makefile. Add a comment to that effect.

Define BSD4_4: quad_t's in struct rlimit;

branches: 1.35.2;
CFLAGS->CPPFLAGS

Remove WARNS=1 from all the subdirectory Makefiles, and add it to Makefile.inc
now that all /bin has been cleaned.

Make the syntax tables work on machines where characters are unsigned.

Don't roll own rules to build helper programs.
Add WARNS

add auto-generated token.h to dependancy for ${OBJS}.
not everyone runs "make depend" ...

Add mkinit.o mknodes.o mksyntax.o to CLEANFILES

Eliminate bogus redefinitions of standard targets.

Back out the .PATH.c changes. The .depend problem (and others)
will be fixed using the new .NOPATH make feature instead.

Use .PATH.c: ...

- XXX Inhibit warnings on PowerPC for now - there are lots of
"char is unsigned" problems here.
- Add rules for mkinit, mknodes, and mksyntax that use the HOST_*
facilities, for cross-compiling.

add builtins.h to the list of (built) headers depended on by ${OBJS}, so
make from 'cleandir' works.

PR/2808: Depend and clean fixes from FreeBSD

branches: 1.23.4;
Fix problems with the way init.o is built:
* Prevent gratuitous rebuilds when nothing has changed.
* Make sure it's rebuilt if a .h file is updated.
From Mike Long, PR 1454.

Parallel make fixes.

Add a DPADD.

Merge in my changes from vangogh, and fix the x=`false`; echo $? == 0
bug.

convert to new RCS id conventions.

ulimit builtin (PR #388)

This public domain code, originally by Doug Gwyn, Doug Kingston, Eric
Gisin, and Michael Rendell was ripped from pdksh 5.0.8 and hacked for
use with ash.

Renamed builtins to builtins.def to eliminate make's (incorrect) circular
dependancy between the builtins data file and builtins.c.

The bug only occured when there was no obj directory, and is a result of
NetBSD's better (compared to 4.4lite's) default make rules.

Fixes bug #301.

Add RCS ids.

Exclude `mkinit' from argument list to `mkinit'; this especially causes
trouble when compiling with `-g'.

add back in support for building w/o obj dir. also, add NO_HISTORY
define, which (if you invoke mkbuiltins properly) gets you a sh w/o
history of command line editing (for floppy sh).

Added DPADD.

Use libc's sys_siglist[] instead of building and using our own array of
signal names. (from charles)

temporarily disable printf builtin

sync with 4.4lite

Changed to use make's new .OBJDIR

from Thomas Eberhardt <thomas@mathematik.uni-Bremen.de>:
Some reordering and modifications in the Makefiles for sh, dump,
restore to get dependicies right. The README in /usr/share/mk
states that it's a Bad Thing(tm) to add something after
.include <bsd.prog.mk>, but this seems the only way to get the
dependencies right.

Tweak for cross-compiling.

Use sys_signame[].

Add RCS identifiers, remove some completely useless RCS logs and patchkit
headers, and a few other insignificant changes.

Make sure init.c is touched so it doesn't get rebuilt if we
make again. (Okay, so I did reproduce it.)

changed "Id" to "Header" for rcsids

added rcs ids to all files

branches: 1.1.1;
Initial revision

sh: remove no-op 'continue' from do-while-0 loop

With Clang, the only change to the binary are the line number changes
from __LINE__, GCC generates a bit different code.

No functional change.

bin: in builds with MKLINT=yes, run lint on all programs

sh: ignore lint error about 'continue' in 'do while' loop

exec.c(575): error: continue in 'do ... while (0)' loop [323]
jobs.c(203): error: continue in 'do ... while (0)' loop [323]

It is certainly a rarely used feature, I saw it the first time today and
had to look up its meaning in the C standard. But after that, I don't
see why a 'continue' statement in a 'do while' loop should be an error.
Maybe a warning since up to now I thought that 'continue' would jump
back to the top of the loop, while it really jumps to the bottom of the
loop body, for all 3 kinds of loops.

Add -I to find filecomplete.h

Use the date tool

branches: 1.115.6;

Change the (commented out) setting of -DDEBUG to the form that
is most likely to be useful if someone other than me wants to
build a DEBUG shell. NFC (it is a comment in a Makefile!)

branches: 1.114.2;
use SUBDIR.roff suggested by uwe@

branches: 1.113.4;

Implement a bunch of new shell environment variables. many mostly useful
in prompts when expanded at prompt time, but all available for general use.
Many of the new ones are not available in SMALL shells (they work as normal
if assigned, but the shell does not set or use them - and there is no magic
in a SMALL shell (usually for install media.))

I am an idiot... revert the previous unintended commit.

Improve the (new) LINENO section, markup changes (with thanks to wiz@ for
assistace) and some better wording in a few placed.

branches: 1.110.2;

More DEBUG mode changes. As usual, read the source if you care.

Redo mkoptions.sh .. much better this way, now fully automated
option sorting (no longer required option.list to be manually
sorted by long option name) and properly handles conditional
options. Cleaner output format as well.

This allows option.list to be reordered to group related options
together ... also added more comments to it.

Arrange for set -o and $- output to be sorted, rather than more
or less random (and becoming worse as more options are added.)
Since the data is known at compile time, sort at compile time,
rather than at run time.

Drop the lex library - hasn't been needed since the airthmetic
upgrade a while ago (this should make no difference to anything
other than a minor - very minor - build time speedup, ld is
smart enough to relaise that nothing from the lex library was
needed, and the executable contains no reference to it, even
befor ethis change.)

Fix a minor omission in last...

Make ${NETBSD_SHELL} value include (a human recognisable form of)
MKREPRO_TIMESTAMP (as an additional word in the value, with a "BUILD:" prefix)
if it is set during the build. (Trailing 00 pairs in the time are removed).

While here, throw in some extra words that list the compilation
options used which alter sh behaviour (mostly by removing stuff.)
Usually that will only be noticed in a SMALL shell compiled for
install media, or similar - none of the others (not that there
are many) are ever changed from the default in a normal build
(default settings are just omitted.) This also allows scripts
to tell if they are running in a DEBUG shell, which can sometimes
make debugging easier.

branches: 1.104.2;


Finish support for all required $(( )) (shell arithmetic) operators,
closing PR bin/50958

That meant adding the assignment operators ('=', and all of the +=, *= ...)
Currently, ++, --, and ',' are not implemented (none of those are required
by posix) but support for them (most likely ',' first) might be added later.

To do this, I removed the yacc/lex arithmetic parser completely, and
replaced it with a hand written recursive descent parser, that I obtained
from FreeBSD, who earlier had obtained it from dash (Herbert Xu).

While doing the import, I cleaned up the sources (changed some file names
to avoid requiring a clean build, or signifigant surgery to the obj
directories if "build.sh -u" was to be used - "build.sh -u" should work
fine as it is now) removed some dashisms, applied some KNF, ...

Have "make clean" remove sh.html1 and adapt it to clean trace files
the way they have been generated the past 20 years or so...

branches: 1.102.2; 1.102.4;
Improve debugging, from kre (I hooked it to the build).

Include printf by default even for SMALL builds. It is used e.g. by
dhcpcd and as such required by most ramdisk images. Allow turning it off
again by TINYPROG.

branches: 1.100.2;
remove .if make(install)

branches: 1.99.8;
Adjust everything under src (but outside src/tools) to use
the TOOLDIR version of libnbcompat, associated include files,
and associated defs.mk file, instead of the version from the
.OBJDIR of src/tools/compat. This should fix PR 47188.

branches: 1.98.2; 1.98.8;
document another non-literal format string

Document non-literal formats

Move the savehandler assignment before setjmp() to avoid triggering
warnings about use before initialization with clang.

Default to -Wno-sign-compare -Wno-pointer-sign for clang.
Push -Wno-array-bounds down to the cases that depend on it.
Selectively disable warnings for 3rd party software or non-trivial
issues to be reviewed later to get clang -Werror to build most of the
tree.

increase commented out debugging.

add bsd.subdir.mk

build the tutoral

When using -lcurses, you also need -lterminfo.
This fixes the build for sun2, and also builds with LDSTATIC=-static,
since archive libraries don't record inter-library dependencies.

Userland now builds and uses terminfo instead of termcap.

OK: core@, jdc@

use .ORDER for rules that create multiple files.

Rewrite file generation rules using ${GENCMD}. No functional changes intended.

Define dependencies of arith.[ch] on arith.y.

use flex options instead of #defines

define YY_NO_INPUT where appropriate, from Kurt J. Lidl per PR misc/41160

Default to WARNS=4 (except for rcp & ksh)

branches: 1.83.4;
Pass SED=${TOOL_SED:Q} in the environment to scripts run during the build.

Use ${TOOL_AWK} instead of ${AWK} or plain "awk" in make commands.
Pass AWK=${TOOL_AWK:Q} to shell scripts that use awk.

WARNS=4

sprinkle a little const, and now everything compiles with WARNS=3

Pass WARNS=3

don't include the printf builtin if we are SMALL; saves 10K.

Put a syntax.c under CVS instead of building if with the mksyntax program.
Kill mksyntax.c - no longer possible to get the 'wrong sort of chars'.
/bin/sh now has no helper binaries.
syntax.c uses C99 initialisers, run time initialisation could be used
for systems where the compiler doesn't support them.
I've used some #defines to help make this possible - but writing the code
starts making it rather messy.

Put syntax.h under CVS instead of having it generated by mksyntax.
Use CHAR_MIN (from limits.h) to determine whether target char are signed
or unsigned - the syntax tables will not be indexed properly.
Rip out all the stuff from mksyntax.c that wrote syntax.h.
syntax.c can stiff be generated incorrectly...

Replace mkinit.c with mkinit.sh
Build mksyntax directly from mksyntax.c so that the -DTARGET_CHAR=xxx
is applied when it is build.
OTOH mksyntax is broken as it tries to determine properties of the
target system by running code on the build system.

Replace the C program mknodes.c with a shell script mknodes.sh
(mkinit and mksyntax may also die soon...)

Improve how various "simple" host tools are built and invoked.

Rework how MAKEVERBOSE operates:

* Don't bother prefixing commands with a line of ${_MKCMD}\
and instead rely upon "make -s". This is less intrusive on
all the Makefiles than the former. Idea from David Laight.

* Rename the variables use to print messages. The scheme now is:
_MKMSG_FOO Run _MKMSG 'foo'
_MKTARGET_FOO Run _MKMSG_FOO ${.TARGET}
From discussion with Alistair Crooks.

rework to use the newer _MKMSGCREATE (et al) macros

improve MAKEVERBOSE message for HOST_LINKed tools

Support MAKEVERBOSE (XXX: mksyntax is noisy when MAKEVERBOSE=0).
Use DPSRCS appropriately.

Link the host tools against tools/compat -lnbcompat since someone decided to
use strlcpy() and snprintf() in the host tools...

Should fix part of [toolchain/22504], and build problems on other
platforms that don't have strlcpy() or snprintf()...

Add 'trace' to CLEANFILES, generated when debug is enabled.

Fix problems with parallel makes.

Use ${HOST_SH}

If building as a CRUNCHEDPROG, use "lex -L" and "yacc -l" to suppress #line
generation. This may solve [bin/20637].

Support command -p, -v and -V as posix
Stop temporary PATH assigments messing up hash table
Fix sh -c -e "echo $0 $*" -a x (as posix)
(agreed by christos)

allow this to be compiled with unsigned-chars.

Fixes from David Laight:
- ansification
- format of output of jobs command (etc)
- job identiers %+, %- etc
- $? and $(...)
- correct quoting of output of set, export -p and readonly -p
- differentiation between nornal and 'posix special' builtins
- correct behaviour (posix) for errors on builtins and special builtins
- builtin printf and kill
- set -o debug (if compiled with DEBUG)
- cd src obj (as ksh - too useful to do without)
- unset -e name, remove non-readonly variable from export list.
(so I could unset -e PS1 before running the test shell...)

Use signed char to replace int8_t, not just char. Should fix macppc
cross-build problems introduced in rev 1.59.

Pointed out by Valeriy E. Ushakov uwe at ptc dot spbu dot ru on
tech-toolchain.

Use "unsigned char" and "char" instead of "u_int8_t" and "int8_t"
for TARGET_CHAR when building mksyntax. This isn't perfect, but
it lets the host tool work on non-BSD systems without completely
redoing how sh is built.

Use ${NETBSDSRCDIR}/some/path instead of ${.CURDIR}/../../some/path (etc).

branches: 1.57.2;
The printf builtin has been "temporarily" disabled for eight years. Remove
its directory from .PATH to avoid confusion.

back this directory up a day, systems won't even boot (rc.subr splodes)

suggested back-to-the-drawing-board test: $ echo "${PWD:-notlikely}"

Add a commented out -DDEBUG in CPPFLAGS.

.ifdef SMALLPROG, -DSMALL

change from WARNS?=1 to WARNS?=2 for bin/

Use ${MACHINE_CPU} == "arm" to test for ARMishness.

arm26 has unsigned chars too.

PR/9847: Geoff C. Wing: Make test(1) a builtin.

compile with WARNS = 2

branches: 1.48.2;
Remove "arith.h" while cleaning.

PR/5577: Craig M. Chase: sh does not build with PARALLEL set.
- Added YHEADER in Makefile, removed arith.h and adjusted the sources.

The recent cross-compile changes broke the build of x_sh. Properly use
${.IMPSRC} instead of the broken ${.CURDIR}/thing.c.

We don't generate .o's anymore for helper programs, so don't CLEANFILES them.

Patch to make sh cross-compile right. mksyntax reports unsigned char for
powerpc, and signed for m68k & i386.