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* build-aux/gendocs.sh (version): * doc/gendocs_template: * doc/gendocs_template_min: * doc/gnulib.texi: * lib/version-etc.c (COPYRIGHT_YEAR): Update copyright dates by hand in templates and the like. * all files: Run 'make update-copyright'.
60 lines
1.6 KiB
Plaintext
60 lines
1.6 KiB
Plaintext
# tsearch.m4 serial 6
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dnl Copyright (C) 2006-2017 Free Software Foundation, Inc.
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dnl This file is free software; the Free Software Foundation
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dnl gives unlimited permission to copy and/or distribute it,
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dnl with or without modifications, as long as this notice is preserved.
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AC_DEFUN([gl_FUNC_TSEARCH],
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[
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AC_REQUIRE([gl_SEARCH_H_DEFAULTS])
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AC_CHECK_FUNCS([tsearch])
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if test $ac_cv_func_tsearch = yes; then
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dnl On OpenBSD 4.0, the return value of tdelete() is incorrect.
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AC_REQUIRE([AC_PROG_CC])
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AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
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AC_CACHE_CHECK([whether tdelete works], [gl_cv_func_tdelete_works],
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[
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AC_RUN_IFELSE([AC_LANG_SOURCE([[
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#include <stddef.h>
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#include <search.h>
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static int
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cmp_fn (const void *a, const void *b)
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{
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return *(const int *) a - *(const int *) b;
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}
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int
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main ()
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{
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int result = 0;
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int x = 0;
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void *root = NULL;
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if (!(tfind (&x, &root, cmp_fn) == NULL))
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result |= 1;
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tsearch (&x, &root, cmp_fn);
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if (!(tfind (&x, &root, cmp_fn) != NULL))
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result |= 2;
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if (!(tdelete (&x, &root, cmp_fn) != NULL))
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result |= 4;
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return result;
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}]])], [gl_cv_func_tdelete_works=yes], [gl_cv_func_tdelete_works=no],
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[case "$host_os" in
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openbsd*) gl_cv_func_tdelete_works="guessing no";;
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*) gl_cv_func_tdelete_works="guessing yes";;
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esac
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])
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])
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case "$gl_cv_func_tdelete_works" in
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*no)
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REPLACE_TSEARCH=1
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;;
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esac
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else
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HAVE_TSEARCH=0
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fi
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])
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# Prerequisites of lib/tsearch.c.
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AC_DEFUN([gl_PREREQ_TSEARCH], [
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:
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])
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