[p5sagit/p5-mst-13.2.git] / hints / os390.sh

# hints/os390.sh
#
# OS/390 hints by David J. Fiander <davidf@mks.com>
#
# OS/390 OpenEdition Release 3 Mon Sep 22 1997 thanks to:
# 
#     John Goodyear <johngood@us.ibm.com>
#     John Pfuntner <pfuntner@vnet.ibm.com>
#     Len Johnson <lenjay@ibm.net>
#     Bud Huff  <BAHUFF@us.oracle.com>
#     Peter Prymmer <pvhp@forte.com>
#     Andy Dougherty  <doughera@lafayette.edu>
#     Tim Bunce  <Tim.Bunce@ig.co.uk>
#
#  as well as the authors of the aix.sh file
#

# To get ANSI C, we need to use c89, and ld doesn't exist
# You can override this with Configure -Dcc=gcc -Dld=ld.
case "$cc" in
'') cc='c89' ;;
esac
case "$ld" in
'') ld='c89' ;;
esac

# -DMAXSIG=38 maximum signal number
# -DOEMVS is used in place of #ifdef __MVS__ in certain places.
# -D_OE_SOCKETS alters system headers.
# -D_XOPEN_SOURCE_EXTENDEDA alters system headers.
# c89 hides most of the useful header stuff, _ALL_SOURCE turns it on again.
# YYDYNAMIC ensures that the OS/390 yacc generated parser is reentrant.
# -DEBCDIC should come from Configure and need not be mentioned here.
# Prepend your favorites with Configure -Dccflags=your_favorites
case "$ccflags" in
'') ccflags='-DMAXSIG=38 -DOEMVS -D_OE_SOCKETS -D_XOPEN_SOURCE_EXTENDED -D_ALL_SOURCE -DYYDYNAMIC' ;;
*) ccflags="$ccflags -DMAXSIG=38 -DOEMVS -D_OE_SOCKETS -D_XOPEN_SOURCE_EXTENDED -D_ALL_SOURCE -DYYDYNAMIC" ;;
esac

# Turning on optimization breaks perl.
# You can override this with Configure -Doptimize='-O' or somesuch.
case "$optimize" in
'') optimize='none' ;;
esac

# To link via definition side decks we need the dll option
# You can override this with Configure -Ucccdlflags or somesuch.
case "$cccdlflags" in
'') cccdlflags='-W 0,dll' ;;
esac

case "$so" in
'') so='a' ;;
esac

case "$alignbytes" in
'') alignbytes=8 ;;
esac

case "$usemymalloc" in
'') usemymalloc='n' ;;
esac

# On OS/390, libc.a doesn't really hold anything at all,
# so running nm on it is pretty useless.
# You can override this with Configure -Dusenm.
case "$usenm" in
'') usenm='false' ;;
esac

# Setting ldflags='-Wl,EDIT=NO' will get rid of the symbol
# information at the end of the executable (=> smaller binaries).
# Override this option with -Dldflags='whatever else you wanted'.
case "$ldflags" in
'') ldflags='-Wl,EDIT=NO' ;;
esac

# In order to build with dynamic be sure to specify:
#   Configure -Dusedl
# Do not forget to add $archlibexp/CORE to your LIBPATH.
# You might want to override some of this with things like:
#  Configure -Dusedl -Ddlext=so -Ddlsrc=dl_dllload.xs.
case "$usedl" in
'')
    usedl='n' 
    case "$dlext" in
    '') dlext='none' ;;
    esac
    ;;
define)
    case "$useshrplib" in
    '') useshrplib='true' ;;
    esac
    case "$dlsrc" in
    '') dlsrc='dl_dllload.xs' ;;
    esac
    # For performance use 'so' at or beyond v2.8, 'dll' for 2.7 and prior versions
    case "`uname -v`x`uname -r`" in
    02x0[89].*|02x1[0-9].*|[0-9][3-9]x*) 
        so='so'
        case "$dlext" in
        '') dlext='so' ;;
        esac
        ;;
    *) 
        so='dll'
        case "$dlext" in
        '') dlext='dll' ;;
        esac
        ;;
    esac
    libperl="libperl.$so"
    ccflags="$ccflags -D_SHR_ENVIRON -DPERL_EXTERNAL_GLOB -Wc,dll"
    cccdlflags='-c -Wc,dll,EXPORTALL'
    # The following will need to be modified for the installed libperl.x.
    # The modification to Config.pm is done by the installperl script after the build and test.
    ccdlflags="-W l,dll `pwd`/libperl.x"
    lddlflags="-W l,dll `pwd`/libperl.x"
    ;;
esac
# even on static builds using LIBPATH should be OK.
case "$ldlibpthname" in
'') ldlibpthname=LIBPATH ;;
esac

# Header files to include.
# You can override these with Configure -Ui_time -Ui_systime.
case "$i_time" in
'') i_time='define' ;;
esac
case "$i_systime" in
'') i_systime='define' ;;
esac

# (from aix.sh)
# uname -m output is too specific and not appropriate here
# osname should come from Configure
# You can override this with Configure -Darchname='s390' but please don't.
case "$archname" in
'') archname="$osname" ;;
esac

# We have our own cppstdin script.  This is not a variable since 
# Configure sees the presence of the script file.
# We put system header -D definitions in so that Configure
# can find the shmat() prototype in <sys/shm.h> and various
# other things.  Unfortunately, cppflags occurs too late to be of 
# value external to the script.  This may need to be revisited 
# under a compiler other than c89.
case "$usedl" in
define)
echo 'cat >.$$.c; '"$cc"' -D_OE_SOCKETS -D_XOPEN_SOURCE_EXTENDED -D_ALL_SOURCE -D_SHR_ENVIRON -E -Wc,NOLOC ${1+"$@"} .$$.c; rm .$$.c' > cppstdin
    ;;
*)
echo 'cat >.$$.c; '"$cc"' -D_OE_SOCKETS -D_XOPEN_SOURCE_EXTENDED -D_ALL_SOURCE -E -Wc,NOLOC ${1+"$@"} .$$.c; rm .$$.c' > cppstdin
    ;;
esac

#
# Note that Makefile.SH employs a bare yacc command to generate 
# perly.[hc] and a2p.[hc], hence you may wish to:
#
#    alias yacc='myyacc'
#
# Then if you would like to use myyacc and skip past the
# following warnings try invoking Configure like so: 
#
#    sh Configure -Dbyacc=yacc
#
# This trick ought to work even if your yacc is byacc.
#
if test "X$byacc" = "Xbyacc" ; then
    if test -e /etc/yyparse.c ; then
        : we should be OK - perhaps do a test -r?
    else
        cat <<EOWARN >&4

Warning.  You do not have a copy of yyparse.c, the default 
yacc parser template file, in place in /etc.
EOWARN
        if test -e /samples/yyparse.c ; then
            cat <<EOWARN >&4

There does appear to be a template file in /samples though.
Please run:

      cp /samples/yyparse.c /etc

before attempting to Configure the build of $package.

EOWARN
        else
            cat <<EOWARN >&4

There does not appear to be one in /samples either.  
If you feel you can make use of an alternate yacc-like 
parser generator then please read the comments in the
hints/os390.sh file carefully.

EOWARN
        fi
        exit 1
    fi
fi

# Most of the time gcvt() seems to work fine but
# sometimes values like 0.1, 0.2, come out as "10", "20",
# a trivial Perl demonstration snippet is 'print 0.1'.
# The -W 0,float(ieee) seems to be the switch breaking gcvt().
# sprintf() seems to get things right(er).
gconvert_preference=sprintf

cat >config.arch<<'__CONFIG_ARCH__'
# The '-W 0,float(ieee)' cannot be used during Configure as ldflags.

ccflags="$ccflags -W 0,float(ieee)"

__CONFIG_ARCH__
Commit	Line	Data
86339dc9	1	# hints/os390.sh
9d116dd7	2	#
	3	# OS/390 hints by David J. Fiander <davidf@mks.com>
	4	#
86339dc9	5	# OS/390 OpenEdition Release 3 Mon Sep 22 1997 thanks to:
ac9901e0	6	#
ac9901e0	7	# John Goodyear <johngood@us.ibm.com>
86339dc9	8	# John Pfuntner <pfuntner@vnet.ibm.com>
	9	# Len Johnson <lenjay@ibm.net>
	10	# Bud Huff <BAHUFF@us.oracle.com>
	11	# Peter Prymmer <pvhp@forte.com>
1973dd96	12	# Andy Dougherty <doughera@lafayette.edu>
86339dc9	13	# Tim Bunce <Tim.Bunce@ig.co.uk>
	14	#
	15	# as well as the authors of the aix.sh file
	16	#
	17
9d116dd7	18	# To get ANSI C, we need to use c89, and ld doesn't exist
5f912e1c	19	# You can override this with Configure -Dcc=gcc -Dld=ld.
	20	case "$cc" in
	21	'') cc='c89' ;;
	22	esac
	23	case "$ld" in
	24	'') ld='c89' ;;
	25	esac
	26
	27	# -DMAXSIG=38 maximum signal number
	28	# -DOEMVS is used in place of #ifdef __MVS__ in certain places.
	29	# -D_OE_SOCKETS alters system headers.
	30	# -D_XOPEN_SOURCE_EXTENDEDA alters system headers.
	31	# c89 hides most of the useful header stuff, _ALL_SOURCE turns it on again.
9d116dd7	32	# YYDYNAMIC ensures that the OS/390 yacc generated parser is reentrant.
5f912e1c	33	# -DEBCDIC should come from Configure and need not be mentioned here.
	34	# Prepend your favorites with Configure -Dccflags=your_favorites
	35	case "$ccflags" in
7014c407	36	'') ccflags='-DMAXSIG=38 -DOEMVS -D_OE_SOCKETS -D_XOPEN_SOURCE_EXTENDED -D_ALL_SOURCE -DYYDYNAMIC' ;;
7014c407	37	*) ccflags="$ccflags -DMAXSIG=38 -DOEMVS -D_OE_SOCKETS -D_XOPEN_SOURCE_EXTENDED -D_ALL_SOURCE -DYYDYNAMIC" ;;
5f912e1c	38	esac
	39
	40	# Turning on optimization breaks perl.
	41	# You can override this with Configure -Doptimize='-O' or somesuch.
	42	case "$optimize" in
	43	'') optimize='none' ;;
	44	esac
	45
5f912e1c	46	# To link via definition side decks we need the dll option
	47	# You can override this with Configure -Ucccdlflags or somesuch.
	48	case "$cccdlflags" in
ac9901e0	49	'') cccdlflags='-W 0,dll' ;;
5f912e1c	50	esac
5f912e1c	51
5f912e1c	52	case "$so" in
	53	'') so='a' ;;
	54	esac
9d116dd7	55
5f912e1c	56	case "$alignbytes" in
	57	'') alignbytes=8 ;;
	58	esac
9d116dd7	59
5f912e1c	60	case "$usemymalloc" in
	61	'') usemymalloc='n' ;;
	62	esac
9d116dd7	63
	64	# On OS/390, libc.a doesn't really hold anything at all,
	65	# so running nm on it is pretty useless.
5f912e1c	66	# You can override this with Configure -Dusenm.
	67	case "$usenm" in
	68	'') usenm='false' ;;
	69	esac
9d116dd7	70
59c9e5d6	71	# Setting ldflags='-Wl,EDIT=NO' will get rid of the symbol
	72	# information at the end of the executable (=> smaller binaries).
	73	# Override this option with -Dldflags='whatever else you wanted'.
	74	case "$ldflags" in
	75	'') ldflags='-Wl,EDIT=NO' ;;
	76	esac
	77
	78	# In order to build with dynamic be sure to specify:
	79	# Configure -Dusedl
	80	# Do not forget to add $archlibexp/CORE to your LIBPATH.
	81	# You might want to override some of this with things like:
ac9901e0	82	# Configure -Dusedl -Ddlext=so -Ddlsrc=dl_dllload.xs.
5f912e1c	83	case "$usedl" in
ac9901e0	84	'')
	85	usedl='n'
	86	case "$dlext" in
	87	'') dlext='none' ;;
	88	esac
	89	;;
	90	define)
	91	case "$useshrplib" in
	92	'') useshrplib='true' ;;
	93	esac
ac9901e0	94	case "$dlsrc" in
	95	'') dlsrc='dl_dllload.xs' ;;
	96	esac
f2766b05	97	# For performance use 'so' at or beyond v2.8, 'dll' for 2.7 and prior versions
	98	case "`uname -v`x`uname -r`" in
	99	02x0[89].\|02x1[0-9].\|[0-9][3-9]x*)
	100	so='so'
	101	case "$dlext" in
	102	'') dlext='so' ;;
	103	esac
	104	;;
	105	*)
	106	so='dll'
	107	case "$dlext" in
	108	'') dlext='dll' ;;
	109	esac
	110	;;
	111	esac
	112	libperl="libperl.$so"
ac9901e0	113	ccflags="$ccflags -D_SHR_ENVIRON -DPERL_EXTERNAL_GLOB -Wc,dll"
ac9901e0	114	cccdlflags='-c -Wc,dll,EXPORTALL'
f2766b05	115	# The following will need to be modified for the installed libperl.x.
f2766b05	116	# The modification to Config.pm is done by the installperl script after the build and test.
ac9901e0	117	ccdlflags="-W l,dll `pwd`/libperl.x"
f2766b05	118	lddlflags="-W l,dll `pwd`/libperl.x"
ac9901e0	119	;;
5f912e1c	120	esac
ac9901e0	121	# even on static builds using LIBPATH should be OK.
5f912e1c	122	case "$ldlibpthname" in
	123	'') ldlibpthname=LIBPATH ;;
	124	esac
9d116dd7	125
5f912e1c	126	# Header files to include.
	127	# You can override these with Configure -Ui_time -Ui_systime.
	128	case "$i_time" in
	129	'') i_time='define' ;;
	130	esac
	131	case "$i_systime" in
	132	'') i_systime='define' ;;
	133	esac
86339dc9	134
	135	# (from aix.sh)
	136	# uname -m output is too specific and not appropriate here
9d116dd7	137	# osname should come from Configure
5f912e1c	138	# You can override this with Configure -Darchname='s390' but please don't.
86339dc9	139	case "$archname" in
	140	'') archname="$osname" ;;
	141	esac
	142
5f912e1c	143	# We have our own cppstdin script. This is not a variable since
	144	# Configure sees the presence of the script file.
	145	# We put system header -D definitions in so that Configure
	146	# can find the shmat() prototype in <sys/shm.h> and various
	147	# other things. Unfortunately, cppflags occurs too late to be of
	148	# value external to the script. This may need to be revisited
	149	# under a compiler other than c89.
f2766b05	150	case "$usedl" in
	151	define)
	152	echo 'cat >.$$.c; '"$cc"' -D_OE_SOCKETS -D_XOPEN_SOURCE_EXTENDED -D_ALL_SOURCE -D_SHR_ENVIRON -E -Wc,NOLOC ${1+"$@"} .$$.c; rm .$$.c' > cppstdin
	153	;;
	154	*)
5f912e1c	155	echo 'cat >.$$.c; '"$cc"' -D_OE_SOCKETS -D_XOPEN_SOURCE_EXTENDED -D_ALL_SOURCE -E -Wc,NOLOC ${1+"$@"} .$$.c; rm .$$.c' > cppstdin
f2766b05	156	;;
f2766b05	157	esac
23e2eca9	158
23e2eca9	159	#
5f912e1c	160	# Note that Makefile.SH employs a bare yacc command to generate
23e2eca9	161	# perly.[hc] and a2p.[hc], hence you may wish to:
	162	#
	163	# alias yacc='myyacc'
	164	#
	165	# Then if you would like to use myyacc and skip past the
	166	# following warnings try invoking Configure like so:
	167	#
	168	# sh Configure -Dbyacc=yacc
	169	#
	170	# This trick ought to work even if your yacc is byacc.
	171	#
	172	if test "X$byacc" = "Xbyacc" ; then
	173	if test -e /etc/yyparse.c ; then
	174	: we should be OK - perhaps do a test -r?
	175	else
	176	cat <<EOWARN >&4
	177
	178	Warning. You do not have a copy of yyparse.c, the default
	179	yacc parser template file, in place in /etc.
	180	EOWARN
	181	if test -e /samples/yyparse.c ; then
	182	cat <<EOWARN >&4
	183
	184	There does appear to be a template file in /samples though.
	185	Please run:
	186
	187	cp /samples/yyparse.c /etc
	188
	189	before attempting to Configure the build of $package.
	190
	191	EOWARN
	192	else
	193	cat <<EOWARN >&4
	194
	195	There does not appear to be one in /samples either.
	196	If you feel you can make use of an alternate yacc-like
	197	parser generator then please read the comments in the
	198	hints/os390.sh file carefully.
	199
	200	EOWARN
	201	fi
	202	exit 1
	203	fi
	204	fi
	205
eecdb66e	206	# Most of the time gcvt() seems to work fine but
	207	# sometimes values like 0.1, 0.2, come out as "10", "20",
	208	# a trivial Perl demonstration snippet is 'print 0.1'.
1f361dc9	209	# The -W 0,float(ieee) seems to be the switch breaking gcvt().
eecdb66e	210	# sprintf() seems to get things right(er).
aade5aff	211	gconvert_preference=sprintf
eecdb66e	212
965a5e93	213	cat >config.arch<<'__CONFIG_ARCH__'
	214	# The '-W 0,float(ieee)' cannot be used during Configure as ldflags.
	215
b7380707	216	ccflags="$ccflags -W 0,float(ieee)"
965a5e93	217
965a5e93	218	__CONFIG_ARCH__