https://perl5.git.perl.org / metaconfig.git / blame
| Commit | Line | Data |
|---|---|---|
| 937acff7 JH |
1 | ?RCS: $Id: Inhdr.U,v 3.0.1.2 1995/05/12 12:01:31 ram Exp $ |
| 2 | ?RCS: | |
| 3 | ?RCS: Copyright (c) 1991-1993, Raphael Manfredi | |
| 4c42341b | 4 | ?RCS: |
| 937acff7 JH |
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: Inhdr.U,v $ | |
| 12 | ?RCS: Revision 3.0.1.2 1995/05/12 12:01:31 ram | |
| 13 | ?RCS: patch54: deleted tabs that caused some /bin/sh to core dump (ADO) | |
| 14 | ?RCS: | |
| 15 | ?RCS: Revision 3.0.1.1 1994/10/29 15:55:01 ram | |
| 16 | ?RCS: patch36: call ./whoa explicitely instead of relying on PATH | |
| 17 | ?RCS: | |
| 18 | ?RCS: Revision 3.0 1993/08/18 12:05:01 ram | |
| 19 | ?RCS: Baseline for dist 3.0 netwide release. | |
| 20 | ?RCS: | |
| 21 | ?X: | |
| 22 | ?X: This unit checks wether a set of header files exists or not. | |
| 23 | ?X: If the first header is not found, the function tries to locate | |
| 24 | ?X: the next header, and so on, until one is found or there is no | |
| 25 | ?X: more header in the list. | |
| 26 | ?X: | |
| 27 | ?X: To use it, say: | |
| 28 | ?X: set header i_header [ header2 i_header2 ... ] | |
| 29 | ?X: eval $inhdr | |
| 30 | ?X: | |
| 31 | ?MAKE:Inhdr: test Findhdr Whoa | |
| 32 | ?MAKE: -pick add $@ %< | |
| 33 | ?LINT:define inhdr | |
| 937acff7 JH |
34 | ?V:inhdr |
| 35 | ?S:inhdr: | |
| 36 | ?S: This shell variable is used internally by Configure to check | |
| 37 | ?S: wether a set of headers exist or not. A typical use is: | |
| 38 | ?S: set header i_header [ header2 i_header2 ... ] | |
| 39 | ?S: eval $inhdr | |
| 40 | ?S: That will print a message, saying wether header was found or | |
| 41 | ?S: not and set i_header* accordingly. If the first header is not | |
| 42 | ?S: found, we try the next one, until the list is empty or one is found. | |
| 43 | ?S:. | |
| 44 | ?T:xxx xxf var td xxnf tu yyy instead was cont | |
| 45 | : define an alternate in-header-list? function | |
| 46 | inhdr='echo " "; td=$define; tu=$undef; yyy=$@; | |
| 47 | cont=true; xxf="echo \"<\$1> found.\" >&4"; | |
| 48 | case $# in 2) xxnf="echo \"<\$1> NOT found.\" >&4";; | |
| 49 | *) xxnf="echo \"<\$1> NOT found, ...\" >&4";; | |
| 50 | esac; | |
| 51 | case $# in 4) instead=instead;; *) instead="at last";; esac; | |
| 52 | while $test "$cont"; do | |
| 53 | xxx=`./findhdr $1` | |
| 54 | var=$2; eval "was=\$$2"; | |
| 55 | if $test "$xxx" && $test -r "$xxx"; | |
| 56 | then eval $xxf; | |
| 57 | ?X: Next line shifted left 1 tabstop to avoid sh core dump on MachTen 2.1.1. | |
| 58 | eval "case \"\$$var\" in $undef) . ./whoa; esac"; eval "$var=\$td"; | |
| 59 | cont=""; | |
| 60 | else eval $xxnf; | |
| 61 | ?X: Likewise, the next line has been shifted left 1 tabstop -- ADO, 08/03/95 | |
| 62 | eval "case \"\$$var\" in $define) . ./whoa; esac"; eval "$var=\$tu"; fi; | |
| 63 | set $yyy; shift; shift; yyy=$@; | |
| 64 | case $# in 0) cont="";; | |
| 65 | 2) xxf="echo \"but I found <\$1> $instead.\" >&4"; | |
| 66 | xxnf="echo \"and I did not find <\$1> either.\" >&4";; | |
| 67 | *) xxf="echo \"but I found <\$1\> instead.\" >&4"; | |
| 68 | xxnf="echo \"there is no <\$1>, ...\" >&4";; | |
| 69 | esac; | |
| 70 | done; | |
| 71 | ?X: Remaining values are set to 'undef' | |
| 72 | while $test "$yyy"; | |
| 73 | do set $yyy; var=$2; eval "was=\$$2"; | |
| 74 | eval "case \"\$$var\" in $define) . ./whoa; esac"; eval "$var=\$tu"; | |
| 75 | set $yyy; shift; shift; yyy=$@; | |
| 76 | done' | |
| 77 |