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1 | ?RCS: $Id: yacc.U,v 3.0 1993/08/18 12:10:03 ram Exp $ |
| 2 | ?RCS: |
| 3 | ?RCS: Copyright (c) 1991-1993, Raphael Manfredi |
| 4 | ?RCS: |
| 5 | ?RCS: You may redistribute only under the terms of the Artistic Licence, |
| 6 | ?RCS: as specified in the README file that comes with the distribution. |
| 7 | ?RCS: You may reuse parts of this distribution only within the terms of |
| 8 | ?RCS: that same Artistic Licence; a copy of which may be found at the root |
| 9 | ?RCS: of the source tree for dist 3.0. |
| 10 | ?RCS: |
| 11 | ?RCS: $Log: yacc.U,v $ |
| 12 | ?RCS: Revision 3.0 1993/08/18 12:10:03 ram |
| 13 | ?RCS: Baseline for dist 3.0 netwide release. |
| 14 | ?RCS: |
| 85e6fe83 |
15 | ?MAKE:yacc yaccflags: Guess Myread Oldconfig byacc bison cat test package |
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16 | ?MAKE: -pick add $@ %< |
| 17 | ?S:yacc: |
| 18 | ?S: This variable holds the name of the compiler compiler we |
| 19 | ?S: want to use in the Makefile. It can be yacc, byacc, or bison -y. |
| 20 | ?S:. |
| 21 | ?S:yaccflags: |
| 22 | ?S: This variable contains any additional yacc flags desired by the |
| 23 | ?S: user. It is up to the Makefile to use this. |
| 24 | ?S:. |
| 25 | : determine compiler compiler |
| 26 | case "$yacc" in |
| 27 | '') |
| 28 | dflt=yacc;; |
| 29 | *) |
| 30 | dflt="$yacc";; |
| 31 | esac |
| 32 | echo " " |
| 33 | rp="yacc" |
| 34 | if $test -f "$byacc"; then |
| 35 | dflt="$byacc" |
| 36 | rp="byacc or $rp" |
| 37 | fi |
| 38 | if $test -f "$bison"; then |
| 39 | rp="$rp or bison -y" |
| 40 | fi |
| 41 | $cat <<EOM |
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42 | $package no longer requires a compiler compiler, so the following is optional. |
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43 | EOM |
| 44 | rp="Which compiler compiler ($rp) shall I use?" |
| 45 | . ./myread |
| 46 | yacc="$ans" |
| 47 | case "$yacc" in |
| 48 | *bis*) |
| 49 | case "$yacc" in |
| 50 | *-y*) ;; |
| 51 | *) |
| 52 | yacc="$yacc -y" |
| 53 | echo "(Adding -y option to bison to get yacc-compatible behaviour.)" |
| 54 | ;; |
| 55 | esac |
| 56 | ;; |
| 57 | esac |
| 58 | |
| 59 | @if yaccflags |
| 60 | : see if we need extra yacc flags |
| 61 | dflt="$yaccflags" |
| 62 | case "$dflt" in |
| 63 | '') dflt=none;; |
| 64 | esac |
| 65 | $cat <<EOH |
| 66 | |
| 67 | Your yacc program may need extra flags to normally process the parser sources. |
| 68 | Do NOT specify any -d or -v flags here, since those are explicitely known |
| 69 | by the various Makefiles. However, if your machine has strange/undocumented |
| 70 | options (like -Sr# on SCO to specify the maximum number of grammar rules), then |
| 71 | please add them here. To use no flags, specify the word "none". |
| 72 | |
| 73 | EOH |
| 74 | rp="Any additional yacc flags?" |
| 75 | . ./myread |
| 76 | case "$ans" in |
| 77 | none) yaccflags='';; |
| 78 | *) yaccflags="$ans";; |
| 79 | esac |
| 80 | |
| 81 | @end |
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