diff options
author | Jarkko Hietaniemi <jhi@iki.fi> | 1997-02-18 14:25:14 +1200 |
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committer | Chip Salzenberg <chip@atlantic.net> | 1997-02-22 04:41:00 +1200 |
commit | e60a08f86eee9e5c43d970abb30f70e286eb2e42 (patch) | |
tree | 88db781cce888e48946aeff53bde69d6867b6252 | |
parent | 4341a5d3f1a1f07954d027dcf9bd6a1b88364205 (diff) | |
download | perl-e60a08f86eee9e5c43d970abb30f70e286eb2e42.tar.gz |
New hints for Digital UNIX
-rw-r--r-- | hints/dec_osf.sh | 85 |
1 files changed, 61 insertions, 24 deletions
diff --git a/hints/dec_osf.sh b/hints/dec_osf.sh index 03731355ff..6bde1b4514 100644 --- a/hints/dec_osf.sh +++ b/hints/dec_osf.sh @@ -34,30 +34,57 @@ # hand searching things (index, m//, s///), seems to get slower. # Your mileage will vary. # +# Note 5: The -std is needed because the following compiled +# without the -std and linked with -lm +# +# #include <math.h> +# #include <stdio.h> +# int main(){short x=10,y=sqrt(x);printf("%d\n",y);} +# +# will in Digital UNIX 3.* and 4.0b print 0 -- and in Digital +# UNIX 4.0{,a} dump core: Floating point exception in the printf(), +# the y has become a signaling NaN. +# -_DEC_cc_style= -case "$optimize" in -'') case "$cc" in - *gcc*) - optimize='-O3' - ;; - *) - # compile something small: taint.c is fine for this. - # the main point is the '-v' flag of 'cc'. - case "`cc -v -I. -c taint.c -o /tmp/taint$$.o 2>&1`" in - */gemc_cc*) - # we have the new DEC GEM CC - optimize='-O4' +# If using the DEC compiler we must find out the DEC compiler style: +# the style changed between Digital UNIX (aka DEC OSF/1) 3 and +# Digital UNIX 4. The old compiler was originally from Ultrix and +# the MIPS company, the new compiler is originally from the VAX world +# and it is called GEM. Many of the options we are going to use depend +# on the compiler style. + +# do NOT, I repeat, *NOT* take away that leading tab + _DEC_cc_style= +# Configure Black Magic (TM) + +case "$cc" in +*gcc*) ;; # pass +*) # compile something small: taint.c is fine for this. + # the main point is the '-v' flag of 'cc'. + case "`cc -v -I. -c taint.c -o /tmp/taint$$.o 2>&1`" in + */gemc_cc*) # we have the new DEC GEM CC _DEC_cc_style=new ;; - *) - # we have the old MIPS CC - optimize='-O2 -Olimit 3200' + *) # we have the old MIPS CC _DEC_cc_style=old ;; - esac - # cleanup - rm -f /tmp/taint$$.o + esac + # cleanup + rm -f /tmp/taint$$.o + ;; +esac + +# we want optimisation + +case "$optimize" in +'') case "$cc" in + *gcc*) + optimize='-O3' ;; + *) case "$_DEC_cc_style" in + new) optimize='-O4' ;; + old) optimize='-O2 -Olimit 3200' ;; + esac + ;; esac ;; esac @@ -69,10 +96,7 @@ ccflags="$ccflags -DSTANDARD_C" case "$cc" in gcc) ccflags="$ccflags -ansi" ;; -*) ccflags="$ccflags -std1" - # -vaxc not to get warnings about stuff like$this for VMS. - # -vaxc is available only in newer DEC compilers. - test X"$_DEC_cc_style"Y = XnewY && ccflags="$ccflags -vaxc" +*) ccflags="$ccflags -std" ;; esac @@ -105,13 +129,26 @@ case "$optimize" in esac # +# Unset temporary variables no more needed. +# + +unset _DEC_cc_style + +# # History: # +# perl5.003_27: +# +# 18-Feb-1997 Jarkko Hietaniemi <jhi@iki.fi> +# +# * unset _DEC_cc_style and more commentary on -std. +# +# # perl5.003_26: # # 15-Feb-1997 Jarkko Hietaniemi <jhi@iki.fi> # -# * -std1 and -ansi. +# * -std and -ansi. # # # perl5.003_24: |