diff options
Diffstat (limited to 'm4/tsearch.m4')
-rw-r--r-- | m4/tsearch.m4 | 64 |
1 files changed, 0 insertions, 64 deletions
diff --git a/m4/tsearch.m4 b/m4/tsearch.m4 deleted file mode 100644 index 9f8782e4..00000000 --- a/m4/tsearch.m4 +++ /dev/null | |||
@@ -1,64 +0,0 @@ | |||
1 | # tsearch.m4 serial 8 | ||
2 | dnl Copyright (C) 2006-2021 Free Software Foundation, Inc. | ||
3 | dnl This file is free software; the Free Software Foundation | ||
4 | dnl gives unlimited permission to copy and/or distribute it, | ||
5 | dnl with or without modifications, as long as this notice is preserved. | ||
6 | |||
7 | AC_DEFUN([gl_FUNC_TSEARCH], | ||
8 | [ | ||
9 | AC_REQUIRE([gl_SEARCH_H_DEFAULTS]) | ||
10 | AC_CHECK_FUNCS([tsearch twalk]) | ||
11 | if test $ac_cv_func_tsearch = yes; then | ||
12 | dnl On OpenBSD 4.0, the return value of tdelete() is incorrect. | ||
13 | AC_REQUIRE([AC_PROG_CC]) | ||
14 | AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles | ||
15 | AC_CACHE_CHECK([whether tdelete works], [gl_cv_func_tdelete_works], | ||
16 | [ | ||
17 | AC_RUN_IFELSE([AC_LANG_SOURCE([[ | ||
18 | #include <stddef.h> | ||
19 | #include <search.h> | ||
20 | static int | ||
21 | cmp_fn (const void *a, const void *b) | ||
22 | { | ||
23 | return *(const int *) a - *(const int *) b; | ||
24 | } | ||
25 | int | ||
26 | main () | ||
27 | { | ||
28 | int result = 0; | ||
29 | int x = 0; | ||
30 | void *root = NULL; | ||
31 | if (!(tfind (&x, &root, cmp_fn) == NULL)) | ||
32 | result |= 1; | ||
33 | tsearch (&x, &root, cmp_fn); | ||
34 | if (!(tfind (&x, &root, cmp_fn) != NULL)) | ||
35 | result |= 2; | ||
36 | if (!(tdelete (&x, &root, cmp_fn) != NULL)) | ||
37 | result |= 4; | ||
38 | return result; | ||
39 | }]])], [gl_cv_func_tdelete_works=yes], [gl_cv_func_tdelete_works=no], | ||
40 | [case "$host_os" in | ||
41 | openbsd*) gl_cv_func_tdelete_works="guessing no" ;; | ||
42 | # Guess yes on native Windows. | ||
43 | mingw*) gl_cv_func_tdelete_works="guessing yes" ;; | ||
44 | *) gl_cv_func_tdelete_works="guessing yes" ;; | ||
45 | esac | ||
46 | ]) | ||
47 | ]) | ||
48 | case "$gl_cv_func_tdelete_works" in | ||
49 | *no) | ||
50 | REPLACE_TSEARCH=1 | ||
51 | ;; | ||
52 | esac | ||
53 | else | ||
54 | HAVE_TSEARCH=0 | ||
55 | fi | ||
56 | if test $ac_cv_func_twalk != yes; then | ||
57 | HAVE_TWALK=0 | ||
58 | fi | ||
59 | ]) | ||
60 | |||
61 | # Prerequisites of lib/tsearch.c. | ||
62 | AC_DEFUN([gl_PREREQ_TSEARCH], [ | ||
63 | : | ||
64 | ]) | ||