# hints/irix_6.sh
#
# original from Krishna Sethuraman, [email protected]
#
# Modified Mon Jul 22 14:52:25 EDT 1996
#       Andy Dougherty <[email protected]>
#       with help from Dean Roehrich <[email protected]>.
#   cc -n32 update info from Krishna Sethuraman, [email protected].
#       additional update from Scott Henry, [email protected]

# Futzed with by John Stoffel <[email protected]> on 4/24/1997
#    - assumes 'cc -n32' by default
#    - tries to check for various compiler versions and do the right
#      thing when it can
#    - warnings turned off (-n32 messages):
#       1116 - non-void function should return a value
#       1048 - cast between pointer-to-object and pointer-to-function
#       1042 - operand types are incompatible

# Tweaked by Chip Salzenberg <[email protected]> on 5/13/97
#    - don't assume 'cc -n32' if the n32 libm.so is missing

# Threaded by Jarkko Hietaniemi <[email protected]> on 11/18/97
#    - POSIX threads knowledge by IRIX version

# gcc-enabled by Kurt Starsinic <[email protected]> on 3/24/1998

# Use   sh Configure -Dcc='cc -n32' to try compiling with -n32.
#     or -Dcc='cc -n32 -mips3' (or -mips4) to force (non)portability
# Don't bother with -n32 unless you have the 7.1 or later compilers.
#     But there's no quick and light-weight way to check in 6.2.

# Let's assume we want to use 'cc -n32' by default, unless the
# necessary libm is missing (which has happened at least twice)
case "$cc" in
'')
   if test -f /usr/lib32/libm.so
   then
       cc='cc -n32'
   fi ;;
esac

# Check for which compiler we're using

case "$cc" in
*"cc -n32"*)

       # Perl 5.004_57 introduced new qsort code into pp_ctl.c that
       # makes IRIX  cc prior to 7.2.1 to emit bad code.
       # so some serious hackery follows to set pp_ctl flags correctly.

       # Check for which version of the compiler we're running
       case "`$cc -version 2>&1`" in
       *7.0*)                        # Mongoose 7.0
            ccflags="$ccflags -D_BSD_TYPES -D_BSD_TIME -woff 1009,1042,1048,1110,1116,1184 -OPT:Olimit=0"
            optimize='none'
            ;;
       *7.1*|*7.2|*7.20)             # Mongoose 7.1+
            ccflags="$ccflags -D_BSD_TYPES -D_BSD_TIME -woff 1009,1110,1184 -OPT:Olimit=0"
            optimize='-O3'
# This is a temporary fix for 5.005.
# Leave pp_ctl_cflags  line at left margin for Configure.  See
# hints/README.hints, especially the section
# =head2 Propagating variables to config.sh
pp_ctl_cflags='optimize=-O'
            ;;
       *7.*)                         # Mongoose 7.2.1+
            ccflags="$ccflags -D_BSD_TYPES -D_BSD_TIME -woff 1009,1110,1184 -OPT:Olimit=0:space=on"
            optimize='-O'
            ;;
       *6.2*)                        # Ragnarok 6.2
            ccflags="$ccflags -D_BSD_TYPES -D_BSD_TIME -woff 1009,1110,1184"
            optimize='none'
            ;;
       *)                            # Be safe and not optimize
            ccflags="$ccflags -D_BSD_TYPES -D_BSD_TIME -woff 1009,1110,1184 -OPT:Olimit=0"
            optimize='none'
            ;;
       esac

# this is to accommodate the 'modules' capability of the
# 7.2 MIPSPro compilers, which allows for the compilers to be installed
# in a nondefault location.  Almost everything works as expected, but
# /usr/include isn't caught properly.  Hence see the /usr/include/pthread.h
# change below to include TOOLROOT (a modules environment variable),
# and the following code.  Additional
# code to accommodate the 'modules' environment should probably be added
# here if possible, or be inserted as a ${TOOLROOT} reference before
# absolute paths (again, see the pthread.h change below).
# -- [email protected], 8/23/98

if [ "X${TOOLROOT}" != "X" ]; then
# we cant set cppflags because it gets overwritten
# we dont actually need $TOOLROOT/usr/include on the cc line cuz the
# modules functionality already includes it but
# XXX - how do I change cppflags in the hints file?
       ccflags="$ccflags -I${TOOLROOT}/usr/include"
       usrinc="${TOOLROOT}/usr/include"
fi

       ld=ld
       # perl's malloc can return improperly aligned buffer
       usemymalloc='undef'
       # NOTE: -L/usr/lib32 -L/lib32 are automatically selected by the linker
       ldflags=' -L/usr/local/lib32 -L/usr/local/lib'
       cccdlflags=' '
   # From: David Billinghurst <[email protected]>
   # If you get complaints about so_locations then change the following
   # line to something like:
   #   lddlflags="-n32 -shared -check_registry /usr/lib32/so_locations"
       lddlflags="-n32 -shared"
       libc='/usr/lib32/libc.so'
       plibpth='/usr/lib32 /lib32 /usr/ccs/lib'
       nm_opt='-p'
       nm_so_opt='-p'
       ;;
*gcc*)
       ccflags="$ccflags -D_BSD_TYPES -D_BSD_TIME -D_POSIX_C_SOURCE"
       optimize="-O3"
       usenm='undef'
       ;;
*)
       # this is needed to force the old-32 paths
       #  since the system default can be changed.
       ccflags="$ccflags -32 -D_BSD_TYPES -D_BSD_TIME -Olimit 3100"
       optimize='-O'
       ;;
esac

# We don't want these libraries.
# Socket networking is in libc, these are not installed by default,
# and just slow perl down. ([email protected])
set `echo X "$libswanted "|sed -e 's/ socket / /' -e 's/ nsl / /' -e 's/ dl / /'`
shift
libswanted="$*"

# I have conflicting reports about the sun, crypt, bsd, and PW
# libraries on Irix 6.2.
#
# One user rerports:
# Don't need sun crypt bsd PW under 6.2.  You *may* need to link
# with these if you want to run perl built under 6.2 on a 5.3 machine
# (I haven't checked)
#
# Another user reported that if he included those libraries, a large number
# of the tests failed (approx. 20-25) and he would get a core dump. To
# make things worse, test results were inconsistent, i.e., some of the
# tests would pass some times and fail at other times.
# The safest thing to do seems to be to eliminate them.
#
#  Actually, the only libs that you want are '-lm'.  Everything else
# you need is in libc.  You do also need '-lbsd' if you choose not
# to use the -D_BSD_* defines.  Note that as of 6.2 the only
# difference between '-lmalloc' and '-lc' malloc is the debugging
# and control calls, which aren't used by perl. -- [email protected]

set `echo X "$libswanted "|sed -e 's/ sun / /' -e 's/ crypt / /' -e 's/ bsd / /' -e 's/ PW / /' -e 's/ malloc / /'`
shift
libswanted="$*"

if [ "X$usethreads" = "X$define" -o "X$usethreads" = "Xy" ]; then
   if test ! -f ${TOOLROOT}/usr/include/pthread.h -o ! -f /usr/lib/libpthread.so; then
       uname_r=`uname -r`
       case "`uname -r`" in
       5*|6.0|6.1)
           echo >&4 "IRIX $uname_r does not have the POSIX threads."
           echo >&4 "You should upgrade to at least IRIX 6.2 with pthread patches."
           echo >&4 "Cannot continue, aborting."
           exit 1
           ;;
       6.2)
           echo >&4 ""
cat >&4 <<EOF
IRIX 6.2 $uname_r can have the POSIX threads.
The following IRIX patches (or their replacements) must, however, be installed:

       1404 Irix 6.2 Posix 1003.1b man pages
       1645 IRIX 6.2 & 6.3 POSIX header file updates
       2000 Irix 6.2 Posix 1003.1b support modules
       2254 Pthread library fixes
       2401 6.2 all platform kernel rollup
IMPORTANT:
       Without patch 2401, a kernel bug in IRIX 6.2 will
       cause your machine to panic and crash when running
       threaded perl. IRIX 6.3 and up should be OK.


Cannot continue, aborting.
EOF
           exit 1
           ;;
       6.*|7.*)
           echo >&4 "IRIX $uname_r should have the POSIX threads."
           echo >&4 "But somehow you do not seem to have them installed."
           echo >&4 "Cannot continue, aborting."
           exit 1
           ;;
       esac
       unset uname_r
   fi
   # -lpthread needs to come before -lc but after other libraries such
   # as -lgdbm and such like. We assume here that -lc is present in
   # libswanted. If that fails to be true in future, then this can be
   # changed to add pthread to the very end of libswanted.
   set `echo X "$libswanted "| sed -e 's/ c / pthread /'`
   ld="${cc:-cc}"
   shift
   libswanted="$*"
   usemymalloc='n'
fi

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