From: Jarkko Hietaniemi Date: Sat, 31 Jul 1999 21:53:54 +0000 (+0000) Subject: Make the use64bits and usethreads friendlier/braver; X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=commitdiff_plain;h=e5e20432e9e03bcbcca94d9d3a505629a0b07975;p=p5sagit%2Fp5-mst-13.2.git Make the use64bits and usethreads friendlier/braver; they no more wimp out if the platform is unknown. On use64bits if gcc used -DUSE_LONG_LONG is added to the ccflags (this dependency on gcc caused a slightly weird reordering of Configure, but things still seem to work.) p4raw-id: //depot/cfgperl@3841 --- diff --git a/Configure b/Configure index 2030c35..65afbb4 100755 --- a/Configure +++ b/Configure @@ -20,7 +20,7 @@ # $Id: Head.U,v 3.0.1.9 1997/02/28 15:02:09 ram Exp $ # -# Generated on Fri Jul 30 00:08:11 EET DST 1999 [metaconfig 3.0 PL70] +# Generated on Sun Aug 1 00:18:49 EET DST 1999 [metaconfig 3.0 PL70] # (with additional metaconfig patches by perlbug@perl.com) cat >/tmp/c1$$ <&4 <&4 +else + echo "Could not find manual pages in source form." >&4 +fi + +: see what memory models we can support +case "$models" in +'') + $cat >pdp11.c <<'EOP' +int main() { +#ifdef pdp11 + exit(0); +#else + exit(1); +#endif +} +EOP + ( cc -o pdp11 pdp11.c ) >/dev/null 2>&1 + if $test -f pdp11 && ./pdp11 2>/dev/null; then + dflt='unsplit split' + else + tans=`./loc . X /lib/small /lib/large /usr/lib/small /usr/lib/large /lib/medium /usr/lib/medium /lib/huge` + case "$tans" in + X) dflt='none';; + *) if $test -d /lib/small || $test -d /usr/lib/small; then + dflt='small' + else + dflt='' + fi + if $test -d /lib/medium || $test -d /usr/lib/medium; then + dflt="$dflt medium" + fi + if $test -d /lib/large || $test -d /usr/lib/large; then + dflt="$dflt large" + fi + if $test -d /lib/huge || $test -d /usr/lib/huge; then + dflt="$dflt huge" + fi + esac + fi;; +*) dflt="$models";; +esac +$cat </dev/null 2>&1 || \ + $contains '\-i' $sysman/cc.1 >/dev/null 2>&1; then + dflt='-i' + else + dflt='none' + fi;; + *) dflt="$split";; + esac + rp="What flag indicates separate I and D space?" + . ./myread + tans="$ans" + case "$tans" in + none) tans='';; + esac + split="$tans" + unsplit='';; +*large*|*small*|*medium*|*huge*) + case "$models" in + *large*) + case "$large" in + '') dflt='-Ml';; + *) dflt="$large";; + esac + rp="What flag indicates large model?" + . ./myread + tans="$ans" + case "$tans" in + none) tans=''; + esac + large="$tans";; + *) large='';; + esac + case "$models" in + *huge*) case "$huge" in + '') dflt='-Mh';; + *) dflt="$huge";; + esac + rp="What flag indicates huge model?" + . ./myread + tans="$ans" + case "$tans" in + none) tans=''; + esac + huge="$tans";; + *) huge="$large";; + esac + case "$models" in + *medium*) case "$medium" in + '') dflt='-Mm';; + *) dflt="$medium";; + esac + rp="What flag indicates medium model?" + . ./myread + tans="$ans" + case "$tans" in + none) tans=''; + esac + medium="$tans";; + *) medium="$large";; + esac + case "$models" in + *small*) case "$small" in + '') dflt='none';; + *) dflt="$small";; + esac + rp="What flag indicates small model?" + . ./myread + tans="$ans" + case "$tans" in + none) tans=''; + esac + small="$tans";; + *) small='';; + esac + ;; +*) + echo "Unrecognized memory models--you may have to edit Makefile.SH" >&4 + ;; +esac +$rm -f pdp11.* pdp11 + +: make some quick guesses about what we are up against +echo " " +$echo $n "Hmm... $c" +echo exit 1 >bsd +echo exit 1 >usg +echo exit 1 >v7 +echo exit 1 >osf1 +echo exit 1 >eunice +echo exit 1 >xenix +echo exit 1 >venix +echo exit 1 >os2 +d_bsd="$undef" +$cat /usr/include/signal.h /usr/include/sys/signal.h >foo 2>/dev/null +if test -f /osf_boot || $contains 'OSF/1' /usr/include/ctype.h >/dev/null 2>&1 +then + echo "Looks kind of like an OSF/1 system, but we'll see..." + echo exit 0 >osf1 +elif test `echo abc | tr a-z A-Z` = Abc ; then + xxx=`./loc addbib blurfl $pth` + if $test -f $xxx; then + echo "Looks kind of like a USG system with BSD features, but we'll see..." + echo exit 0 >bsd + echo exit 0 >usg + else + if $contains SIGTSTP foo >/dev/null 2>&1 ; then + echo "Looks kind of like an extended USG system, but we'll see..." + else + echo "Looks kind of like a USG system, but we'll see..." + fi + echo exit 0 >usg + fi +elif $contains SIGTSTP foo >/dev/null 2>&1 ; then + echo "Looks kind of like a BSD system, but we'll see..." + d_bsd="$define" + echo exit 0 >bsd +else + echo "Looks kind of like a Version 7 system, but we'll see..." + echo exit 0 >v7 +fi +case "$eunicefix" in +*unixtovms*) + $cat <<'EOI' +There is, however, a strange, musty smell in the air that reminds me of +something...hmm...yes...I've got it...there's a VMS nearby, or I'm a Blit. +EOI + echo exit 0 >eunice + d_eunice="$define" +: it so happens the Eunice I know will not run shell scripts in Unix format + ;; +*) + echo " " + echo "Congratulations. You aren't running Eunice." + d_eunice="$undef" + ;; +esac +: Detect OS2. The p_ variable is set above in the Head.U unit. +case "$p_" in +:) ;; +*) + $cat <<'EOI' +I have the feeling something is not exactly right, however...don't tell me... +lemme think...does HAL ring a bell?...no, of course, you're only running OS/2! +EOI + echo exit 0 >os2 + ;; +esac +if test -f /xenix; then + echo "Actually, this looks more like a XENIX system..." + echo exit 0 >xenix + d_xenix="$define" +else + echo " " + echo "It's not Xenix..." + d_xenix="$undef" +fi +chmod +x xenix +$eunicefix xenix +if test -f /venix; then + echo "Actually, this looks more like a VENIX system..." + echo exit 0 >venix +else + echo " " + if ./xenix; then + : null + else + echo "Nor is it Venix..." + fi +fi +chmod +x bsd usg v7 osf1 eunice xenix venix os2 +$eunicefix bsd usg v7 osf1 eunice xenix venix os2 +$rm -f foo + +: see if we need a special compiler +echo " " +if ./usg; then + case "$cc" in + '') case "$Mcc" in + /*) dflt='Mcc';; + *) case "$large" in + -M*) dflt='cc';; + *) if $contains '\-M' $sysman/cc.1 >/dev/null 2>&1 ; then + if $contains '\-M' $sysman/cpp.1 >/dev/null 2>&1; then + dflt='cc' + else + dflt='cc -M' + fi + else + dflt='cc' + fi;; + esac;; + esac;; + *) dflt="$cc";; + esac + case "$dflt" in + *M*) $cat <<'EOM' +On some older systems the default C compiler will not resolve multiple global +references that happen to have the same name. On some such systems the "Mcc" +command may be used to force these to be resolved. On other systems a "cc -M" +command is required. (Note that the -M flag on other systems indicates a +memory model to use!) If you have the Gnu C compiler, you might wish to use +that instead. + +EOM + ;; + esac + rp="Use which C compiler?" + . ./myread + cc="$ans" +else + case "$cc" in + '') dflt=cc;; + *) dflt="$cc";; + esac + rp="Use which C compiler?" + . ./myread + cc="$ans" +fi +: Look for a hint-file generated 'call-back-unit'. Now that the +: user has specified the compiler, we may need to set or change some +: other defaults. +if $test -f cc.cbu; then + . ./cc.cbu +fi +echo " " +echo "Checking for GNU cc in disguise and/or its version number..." >&4 +$cat >gccvers.c < +int main() { +#ifdef __GNUC__ +#ifdef __VERSION__ + printf("%s\n", __VERSION__); +#else + printf("%s\n", "1"); +#endif +#endif + exit(0); +} +EOM +if $cc -o gccvers gccvers.c; then + gccversion=`./gccvers` + case "$gccversion" in + '') echo "You are not using GNU cc." ;; + *) echo "You are using GNU cc $gccversion." ;; + esac +else + echo " " + echo "*** WHOA THERE!!! ***" >&4 + echo " Your C compiler \"$cc\" doesn't seem to be working!" >&4 + case "$knowitall" in + '') + echo " You'd better start hunting for one and let me know about it." >&4 + exit 1 + ;; + esac +fi +$rm -f gccvers* +case "$gccversion" in +1*) cpp=`./loc gcc-cpp $cpp $pth` ;; +esac + cat <&4 <bsd -echo exit 1 >usg -echo exit 1 >v7 -echo exit 1 >osf1 -echo exit 1 >eunice -echo exit 1 >xenix -echo exit 1 >venix -echo exit 1 >os2 -d_bsd="$undef" -$cat /usr/include/signal.h /usr/include/sys/signal.h >foo 2>/dev/null -if test -f /osf_boot || $contains 'OSF/1' /usr/include/ctype.h >/dev/null 2>&1 -then - echo "Looks kind of like an OSF/1 system, but we'll see..." - echo exit 0 >osf1 -elif test `echo abc | tr a-z A-Z` = Abc ; then - xxx=`./loc addbib blurfl $pth` - if $test -f $xxx; then - echo "Looks kind of like a USG system with BSD features, but we'll see..." - echo exit 0 >bsd - echo exit 0 >usg - else - if $contains SIGTSTP foo >/dev/null 2>&1 ; then - echo "Looks kind of like an extended USG system, but we'll see..." - else - echo "Looks kind of like a USG system, but we'll see..." - fi - echo exit 0 >usg - fi -elif $contains SIGTSTP foo >/dev/null 2>&1 ; then - echo "Looks kind of like a BSD system, but we'll see..." - d_bsd="$define" - echo exit 0 >bsd -else - echo "Looks kind of like a Version 7 system, but we'll see..." - echo exit 0 >v7 -fi -case "$eunicefix" in -*unixtovms*) - $cat <<'EOI' -There is, however, a strange, musty smell in the air that reminds me of -something...hmm...yes...I've got it...there's a VMS nearby, or I'm a Blit. -EOI - echo exit 0 >eunice - d_eunice="$define" -: it so happens the Eunice I know will not run shell scripts in Unix format - ;; -*) - echo " " - echo "Congratulations. You aren't running Eunice." - d_eunice="$undef" - ;; -esac -: Detect OS2. The p_ variable is set above in the Head.U unit. -case "$p_" in -:) ;; -*) - $cat <<'EOI' -I have the feeling something is not exactly right, however...don't tell me... -lemme think...does HAL ring a bell?...no, of course, you're only running OS/2! -EOI - echo exit 0 >os2 - ;; -esac -if test -f /xenix; then - echo "Actually, this looks more like a XENIX system..." - echo exit 0 >xenix - d_xenix="$define" -else - echo " " - echo "It's not Xenix..." - d_xenix="$undef" -fi -chmod +x xenix -$eunicefix xenix -if test -f /venix; then - echo "Actually, this looks more like a VENIX system..." - echo exit 0 >venix -else - echo " " - if ./xenix; then - : null - else - echo "Nor is it Venix..." - fi -fi -chmod +x bsd usg v7 osf1 eunice xenix venix os2 -$eunicefix bsd usg v7 osf1 eunice xenix venix os2 -$rm -f foo + esac + ;; +esac + : see if setuid scripts can be secure $cat <&4 -else - echo "Could not find manual pages in source form." >&4 -fi - -: see what memory models we can support -case "$models" in -'') - $cat >pdp11.c <<'EOP' -int main() { -#ifdef pdp11 - exit(0); -#else - exit(1); -#endif -} -EOP - ( cc -o pdp11 pdp11.c ) >/dev/null 2>&1 - if $test -f pdp11 && ./pdp11 2>/dev/null; then - dflt='unsplit split' - else - tans=`./loc . X /lib/small /lib/large /usr/lib/small /usr/lib/large /lib/medium /usr/lib/medium /lib/huge` - case "$tans" in - X) dflt='none';; - *) if $test -d /lib/small || $test -d /usr/lib/small; then - dflt='small' - else - dflt='' - fi - if $test -d /lib/medium || $test -d /usr/lib/medium; then - dflt="$dflt medium" - fi - if $test -d /lib/large || $test -d /usr/lib/large; then - dflt="$dflt large" - fi - if $test -d /lib/huge || $test -d /usr/lib/huge; then - dflt="$dflt huge" - fi - esac - fi;; -*) dflt="$models";; -esac -$cat </dev/null 2>&1 || \ - $contains '\-i' $sysman/cc.1 >/dev/null 2>&1; then - dflt='-i' - else - dflt='none' - fi;; - *) dflt="$split";; - esac - rp="What flag indicates separate I and D space?" - . ./myread - tans="$ans" - case "$tans" in - none) tans='';; - esac - split="$tans" - unsplit='';; -*large*|*small*|*medium*|*huge*) - case "$models" in - *large*) - case "$large" in - '') dflt='-Ml';; - *) dflt="$large";; - esac - rp="What flag indicates large model?" - . ./myread - tans="$ans" - case "$tans" in - none) tans=''; - esac - large="$tans";; - *) large='';; - esac - case "$models" in - *huge*) case "$huge" in - '') dflt='-Mh';; - *) dflt="$huge";; - esac - rp="What flag indicates huge model?" - . ./myread - tans="$ans" - case "$tans" in - none) tans=''; - esac - huge="$tans";; - *) huge="$large";; - esac - case "$models" in - *medium*) case "$medium" in - '') dflt='-Mm';; - *) dflt="$medium";; - esac - rp="What flag indicates medium model?" - . ./myread - tans="$ans" - case "$tans" in - none) tans=''; - esac - medium="$tans";; - *) medium="$large";; - esac - case "$models" in - *small*) case "$small" in - '') dflt='none';; - *) dflt="$small";; - esac - rp="What flag indicates small model?" - . ./myread - tans="$ans" - case "$tans" in - none) tans=''; - esac - small="$tans";; - *) small='';; - esac - ;; -*) - echo "Unrecognized memory models--you may have to edit Makefile.SH" >&4 - ;; -esac -$rm -f pdp11.* pdp11 - -: see if we need a special compiler -echo " " -if ./usg; then - case "$cc" in - '') case "$Mcc" in - /*) dflt='Mcc';; - *) case "$large" in - -M*) dflt='cc';; - *) if $contains '\-M' $sysman/cc.1 >/dev/null 2>&1 ; then - if $contains '\-M' $sysman/cpp.1 >/dev/null 2>&1; then - dflt='cc' - else - dflt='cc -M' - fi - else - dflt='cc' - fi;; - esac;; - esac;; - *) dflt="$cc";; - esac - case "$dflt" in - *M*) $cat <<'EOM' -On some older systems the default C compiler will not resolve multiple global -references that happen to have the same name. On some such systems the "Mcc" -command may be used to force these to be resolved. On other systems a "cc -M" -command is required. (Note that the -M flag on other systems indicates a -memory model to use!) If you have the Gnu C compiler, you might wish to use -that instead. - -EOM - ;; - esac - rp="Use which C compiler?" - . ./myread - cc="$ans" -else - case "$cc" in - '') dflt=cc;; - *) dflt="$cc";; - esac - rp="Use which C compiler?" - . ./myread - cc="$ans" -fi -: Look for a hint-file generated 'call-back-unit'. Now that the -: user has specified the compiler, we may need to set or change some -: other defaults. -if $test -f cc.cbu; then - . ./cc.cbu -fi -echo " " -echo "Checking for GNU cc in disguise and/or its version number..." >&4 -$cat >gccvers.c < -int main() { -#ifdef __GNUC__ -#ifdef __VERSION__ - printf("%s\n", __VERSION__); -#else - printf("%s\n", "1"); -#endif -#endif - exit(0); -} -EOM -if $cc -o gccvers gccvers.c; then - gccversion=`./gccvers` - case "$gccversion" in - '') echo "You are not using GNU cc." ;; - *) echo "You are using GNU cc $gccversion." ;; - esac -else - echo " " - echo "*** WHOA THERE!!! ***" >&4 - echo " Your C compiler \"$cc\" doesn't seem to be working!" >&4 - case "$knowitall" in - '') - echo " You'd better start hunting for one and let me know about it." >&4 - exit 1 - ;; - esac -fi -$rm -f gccvers* -case "$gccversion" in -1*) cpp=`./loc gcc-cpp $cpp $pth` ;; -esac - : What should the include directory be ? echo " " $echo $n "Hmm... $c" diff --git a/README.threads b/README.threads index 4ae2f37..b02e607 100644 --- a/README.threads +++ b/README.threads @@ -55,27 +55,21 @@ you believe supports POSIX.1c threads then read on. Additional information may be in a platform-specific "hints" file in the hints/ subdirectory. -First of all, because threads are such an experimentral feature -there's a failsafe in Configure that stops unknown platforms -from using threads. Search for "is not known to support threads". -About five lines above that is a line that has a list of operating -system names separated with |-signs. Append your operating system -(perl -le 'print $^O') to that list. - -On other platforms that use Configure to build perl, omit the -d -from your ./Configure arguments. For example, use: +On platforms that use Configure to build perl, omit the -d from your +./Configure arguments. For example, use: ./Configure -Dusethreads When Configure prompts you for ccflags, insert any other arguments in -there that your compiler needs to use POSIX threads. When Configure -prompts you for linking flags, include any flags required for -threading (usually nothing special is required here). Finally, when -Configure prompts you for libraries, include any necessary libraries -(e.g. -lpthread). Pay attention to the order of libraries. It is -probably necessary to specify your threading library *before* your -standard C library, e.g. it might be necessary to have -lpthread -lc, -instead of -lc -lpthread. You may also need to use -lc_r instead +there that your compiler needs to use POSIX threads (-D_REENTRANT, +-pthreads, -threads, -pthread, -thread, are good guesses). When +Configure prompts you for linking flags, include any flags required +for threading (usually nothing special is required here). Finally, +when Configure prompts you for libraries, include any necessary +libraries (e.g. -lpthread). Pay attention to the order of libraries. +It is probably necessary to specify your threading library *before* +your standard C library, e.g. it might be necessary to have -lpthread +-lc, instead of -lc -lpthread. You may also need to use -lc_r instead of -lc. Once you have specified all your compiler flags, you can have Configure