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Diffstat (limited to 'U/voidflags.U')
| -rw-r--r-- | U/voidflags.U | 148 |
1 files changed, 0 insertions, 148 deletions
diff --git a/U/voidflags.U b/U/voidflags.U deleted file mode 100644 index 7d9a0d06ba..0000000000 --- a/U/voidflags.U +++ /dev/null @@ -1,148 +0,0 @@ -?RCS: $Id: voidflags.U,v 3.0 1993/08/18 12:10:01 ram Exp $ -?RCS: -?RCS: Copyright (c) 1991-1993, Raphael Manfredi -?RCS: -?RCS: You may redistribute only under the terms of the Artistic Licence, -?RCS: as specified in the README file that comes with the distribution. -?RCS: You may reuse parts of this distribution only within the terms of -?RCS: that same Artistic Licence; a copy of which may be found at the root -?RCS: of the source tree for dist 3.0. -?RCS: -?RCS: $Log: voidflags.U,v $ -?RCS: Revision 3.0 1993/08/18 12:10:01 ram -?RCS: Baseline for dist 3.0 netwide release. -?RCS: -?MAKE:voidflags defvoidused: cat rm contains cc package Oldconfig Myread -?MAKE: -pick add $@ %< -?S:voidflags: -?S: This variable contains the eventual value of the VOIDFLAGS symbol, -?S: which indicates how much support of the void type is given by this -?S: compiler. See VOIDFLAGS for more info. -?S:. -?X: Exceptionally, we have to explicitely alias the symbol name for -?X: config_h.SH, otherwise the comment would not appear. -?C:VOIDFLAGS ~ %<: -?C: This symbol indicates how much support of the void type is given by this -?C: compiler. What various bits mean: -?C: -?C: 1 = supports declaration of void -?C: 2 = supports arrays of pointers to functions returning void -?C: 4 = supports comparisons between pointers to void functions and -?C: addresses of void functions -?C: 8 = suports declaration of generic void pointers -?C: -?C: The package designer should define VOIDUSED to indicate the requirements -?C: of the package. This can be done either by #defining VOIDUSED before -?C: including config.h, or by defining defvoidused in Myinit.U. If the -?C: latter approach is taken, only those flags will be tested. If the -?C: level of void support necessary is not present, defines void to int. -?C:. -?H:?%<:#ifndef VOIDUSED -?H:?%<:# define VOIDUSED $defvoidused -?H:?%<:#endif -?H:?%<:#define VOIDFLAGS $voidflags -?H:?%<:#if (VOIDFLAGS & VOIDUSED) != VOIDUSED -?H:?%<:# define void int /* is void to be avoided? */ -?H:?%<:# define M_VOID /* Xenix strikes again */ -?H:?%<:# define VOID -?H:?%<:#else -?H:?%<:# define VOID void -?H:?%<:#endif -?H:. -?W:%<:void VOID VOIDUSED -?INIT:: full support for void wanted by default -?INIT:defvoidused=15 -?INIT: -?LINT:describe defvoidused -?LINT:known void M_VOID VOIDUSED -: check for void type -echo " " -$cat >&4 <<EOM -Checking to see how well your C compiler groks the void type... - - Support flag bits are: - 1: basic void declarations. - 2: arrays of pointers to functions returning void. - 4: operations between pointers to and addresses of void functions. - 8: generic void pointers. - -EOM -case "$voidflags" in -'') - $cat >try.c <<'EOCP' -#if TRY & 1 -void main() { -#else -main() { -#endif - extern void moo(); /* function returning void */ - void (*goo)(); /* ptr to func returning void */ -#if TRY & 8 - void *hue; /* generic ptr */ -#endif -#if TRY & 2 - void (*foo[10])(); -#endif - -#if TRY & 4 - if(goo == moo) { - exit(0); - } -#endif - exit(0); -} -EOCP -?X: This unit used to use cc -S in those tests to try to speed up things, but -?X: unfortunately, AIX 3.2 does not support this option. - if $cc -c -DTRY=$defvoidused try.c >.out 2>&1 ; then - voidflags=$defvoidused - echo "It appears to support void to the level $package wants ($defvoidused)." - if $contains warning .out >/dev/null 2>&1; then - echo "However, you might get some warnings that look like this:" - $cat .out - fi - else -echo "Hmm, your compiler has some difficulty with void. Checking further..." >&4 - if $cc -c -DTRY=1 try.c >/dev/null 2>&1 ; then - echo "It supports 1..." - if $cc -c -DTRY=3 try.c >/dev/null 2>&1 ; then - echo "It also supports 2..." - if $cc -c -DTRY=7 try.c >/dev/null 2>&1 ; then - voidflags=7 - echo "And it supports 4 but not 8 definitely." - else - echo "It doesn't support 4..." - if $cc -c -DTRY=11 try.c >/dev/null 2>&1 ; then - voidflags=11 - echo "But it supports 8." - else - voidflags=3 - echo "Neither does it support 8." - fi - fi - else - echo "It does not support 2..." - if $cc -c -DTRY=13 try.c >/dev/null 2>&1 ; then - voidflags=13 - echo "But it supports 4 and 8." - else - if $cc -c -DTRY=5 try.c >/dev/null 2>&1 ; then - voidflags=5 - echo "And it supports 4 but has not heard about 8." - else - echo "However it supports 8 but not 4." - fi - fi - fi - else - echo "There is no support at all for void." - voidflags=0 - fi - fi -esac -dflt="$voidflags"; -rp="Your void support flags add up to what?" -. ./myread -voidflags="$ans" -$rm -f try.* .out - |