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[metaconfig.git] / U / threads / d_readdir_r.U
1 ?RCS: $Id: d_readdir_r.U,v 0RCS:
2 ?RCS: Copyright (c) 2002,2003 Jarkko Hietaniemi
3 ?RCS:
4 ?RCS: You may distribute under the terms of either the GNU General Public
5 ?RCS: License or the Artistic License, as specified in the README file.
6 ?RCS:
7 ?RCS: Generated by the reentr.pl from the Perl 5.8 distribution.
8 ?RCS:
9 ?MAKE:d_readdir_r readdir_r_proto: Inlibc Protochk Hasproto i_systypes \
10         usethreads i_dirent extern_C
11 ?MAKE:  -pick add $@ %<
12 ?S:d_readdir_r:
13 ?S:     This variable conditionally defines the HAS_READDIR_R symbol,
14 ?S:     which indicates to the C program that the readdir_r()
15 ?S:     routine is available.
16 ?S:.
17 ?S:readdir_r_proto:
18 ?S:     This variable encodes the prototype of readdir_r.
19 ?S:     It is zero if d_readdir_r is undef, and one of the
20 ?S:     REENTRANT_PROTO_T_ABC macros of reentr.h if d_readdir_r
21 ?S:     is defined.
22 ?S:.
23 ?C:HAS_READDIR_R:
24 ?C:     This symbol, if defined, indicates that the readdir_r routine
25 ?C:     is available to readdir re-entrantly.
26 ?C:.
27 ?C:READDIR_R_PROTO:
28 ?C:     This symbol encodes the prototype of readdir_r.
29 ?C:     It is zero if d_readdir_r is undef, and one of the
30 ?C:     REENTRANT_PROTO_T_ABC macros of reentr.h if d_readdir_r
31 ?C:     is defined.
32 ?C:.
33 ?H:#$d_readdir_r HAS_READDIR_R  /**/
34 ?H:#define READDIR_R_PROTO $readdir_r_proto     /**/
35 ?H:.
36 ?T:try hdrs d_readdir_r_proto
37 : see if readdir_r exists
38 set readdir_r d_readdir_r
39 eval $inlibc
40 case "$d_readdir_r" in
41 "$define")
42         hdrs="$i_systypes sys/types.h define stdio.h $i_dirent dirent.h"
43         case "$d_readdir_r_proto:$usethreads" in
44         ":define")      d_readdir_r_proto=define
45                 set d_readdir_r_proto readdir_r $hdrs
46                 eval $hasproto ;;
47         *)      ;;
48         esac
49         case "$d_readdir_r_proto" in
50         define)
51         case "$readdir_r_proto" in
52         ''|0) try='int readdir_r(DIR*, struct dirent*, struct dirent**);'
53         ./protochk "$extern_C $try" $hdrs && readdir_r_proto=I_TSR ;;
54         esac
55         case "$readdir_r_proto" in
56         ''|0) try='int readdir_r(DIR*, struct dirent*);'
57         ./protochk "$extern_C $try" $hdrs && readdir_r_proto=I_TS ;;
58         esac
59         case "$readdir_r_proto" in
60         ''|0)   d_readdir_r=undef
61                 readdir_r_proto=0
62                 echo "Disabling readdir_r, cannot determine prototype." >&4 ;;
63         * )     case "$readdir_r_proto" in
64                 REENTRANT_PROTO*) ;;
65                 *) readdir_r_proto="REENTRANT_PROTO_$readdir_r_proto" ;;
66                 esac
67                 echo "Prototype: $try" ;;
68         esac
69         ;;
70         *)      case "$usethreads" in
71                 define) echo "readdir_r has no prototype, not using it." >&4 ;;
72                 esac
73                 d_readdir_r=undef
74                 readdir_r_proto=0
75                 ;;
76         esac
77         ;;
78 *)      readdir_r_proto=0
79         ;;
80 esac
81