diff options
Diffstat (limited to 'gnulib/m4/tsearch.m4')
m--------- | gnulib | 0 | ||||
-rw-r--r-- | gnulib/m4/tsearch.m4 | 59 |
2 files changed, 59 insertions, 0 deletions
diff --git a/gnulib b/gnulib deleted file mode 160000 -Subproject 443bc5ffcf7429e557f4a371b0661abe98ddbc1 diff --git a/gnulib/m4/tsearch.m4 b/gnulib/m4/tsearch.m4 new file mode 100644 index 0000000..9d1a1ad --- /dev/null +++ b/gnulib/m4/tsearch.m4 @@ -0,0 +1,59 @@ +# tsearch.m4 serial 6 +dnl Copyright (C) 2006-2011 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FUNC_TSEARCH], +[ + AC_REQUIRE([gl_SEARCH_H_DEFAULTS]) + AC_CHECK_FUNCS([tsearch]) + if test $ac_cv_func_tsearch = yes; then + dnl On OpenBSD 4.0, the return value of tdelete() is incorrect. + AC_REQUIRE([AC_PROG_CC]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_CACHE_CHECK([whether tdelete works], [gl_cv_func_tdelete_works], + [ + AC_RUN_IFELSE([AC_LANG_SOURCE([[ +#include <stddef.h> +#include <search.h> +static int +cmp_fn (const void *a, const void *b) +{ + return *(const int *) a - *(const int *) b; +} +int +main () +{ + int result = 0; + int x = 0; + void *root = NULL; + if (!(tfind (&x, &root, cmp_fn) == NULL)) + result |= 1; + tsearch (&x, &root, cmp_fn); + if (!(tfind (&x, &root, cmp_fn) != NULL)) + result |= 2; + if (!(tdelete (&x, &root, cmp_fn) != NULL)) + result |= 4; + return result; +}]])], [gl_cv_func_tdelete_works=yes], [gl_cv_func_tdelete_works=no], + [case "$host_os" in + openbsd*) gl_cv_func_tdelete_works="guessing no";; + *) gl_cv_func_tdelete_works="guessing yes";; + esac + ]) + ]) + case "$gl_cv_func_tdelete_works" in + *no) + REPLACE_TSEARCH=1 + ;; + esac + else + HAVE_TSEARCH=0 + fi +]) + +# Prerequisites of lib/tsearch.c. +AC_DEFUN([gl_PREREQ_TSEARCH], [ + : +]) |