# hints/os390.sh # # OS/390 hints by David J. Fiander # # OS/390 OpenEdition Release 3 Mon Sep 22 1997 thanks to: # # John Goodyear # John Pfuntner # Len Johnson # Bud Huff # Peter Prymmer # Andy Dougherty # Tim Bunce # # 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 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 <&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 <&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 $package. EOWARN else cat <&4 There does not appear to be one in /samples either. If you feel you can make use of an alternate yacc-like parser generator then please read the comments in the hints/os390.sh file carefully. EOWARN fi exit 1 fi fi # Most of the time gcvt() seems to work fine but # sometimes values like 0.1, 0.2, come out as "10", "20", # a trivial Perl demonstration snippet is 'print 0.1'. # The -W 0,float(ieee) seems to be the switch breaking gcvt(). # sprintf() seems to get things right(er). gconvert_preference=sprintf cat >config.arch<<'__CONFIG_ARCH__' # The '-W 0,float(ieee)' cannot be used during Configure as ldflags. ccflags="$ccflags -W 0,float(ieee)" __CONFIG_ARCH__