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-rw-r--r--configure.ac124
1 files changed, 117 insertions, 7 deletions
diff --git a/configure.ac b/configure.ac
index 0787464b..639c15ba 100644
--- a/configure.ac
+++ b/configure.ac
@@ -525,14 +525,124 @@ AC_CHECK_HEADERS([sys/msg.h sys/mman.h signal.h], [], [], [AC_INCLUDES_DEFAULT])
AC_CHECK_HEADER([[search.h]],
[
- gl_FUNC_TSEARCH
- AS_IF([[test "x$HAVE_TSEARCH" = "x1" && test "x$REPLACE_TSEARCH" != "x1"]],
- [AC_DEFINE([[HAVE_SEARCH_H]], [[1]],
- [Define to 1 if you have the <search.h> header file and your system have properly functioning tsearch(), tfind() and tdelete() functions])])
- ],
- [], [AC_INCLUDES_DEFAULT])
+ MHD_CHECK_LINK_RUN([[for proper tsearch(), tfind() and tdelete()]],[[mhd_cv_sys_tsearch_usable]],
+ [
+ AS_CASE([$host_os],
+ [openbsd*],
+ [[ # Some OpenBSD versions have wrong return value for tdelete()
+ mhd_cv_sys_tsearch_usable='assuming no'
+ ]],
+ [netbsd*],
+ [[ # NetBSD had leaked root node for years
+ mhd_cv_sys_tsearch_usable='assuming no'
+ ]],
+ [[mhd_cv_sys_tsearch_usable='assuming yes']]
+ )
+ ],
+ [
+ AC_LANG_SOURCE(
+ [[
+#ifdef HAVE_STDDEF_H
+#include <stddef.h>
+#endif /* HAVE_STDDEF_H */
+#ifdef HAVE_STDLIB_H
+#include <stdlib.h>
+#endif /* HAVE_STDLIB_H */
+
+#include <stdio.h>
+#include <search.h>
-AM_CONDITIONAL([MHD_HAVE_TSEARCH], [[test "x$ac_cv_header_search_h" = xyes && test "x$HAVE_TSEARCH" = "x1" && test "x$REPLACE_TSEARCH" != "x1"]])
+static int cmp_func(const void *p1, const void *p2)
+{
+ return (*((const int *)p1)) - (*((const int *)p2));
+}
+
+int main(void)
+{
+ int ret = 0;
+ void *root_ptr = NULL;
+ int element1 = 1;
+ int **element_ptr_ptr1;
+ int **element_ptr_ptr2;
+
+ element_ptr_ptr1 =
+ (int **) tsearch ((void*) &element1, &root_ptr, &cmp_func);
+ if (NULL == element_ptr_ptr1)
+ {
+ fprintf (stderr, "NULL pointer has been returned when tsearch() called for the first time.\n");
+ return ++ret;
+ }
+ if (*element_ptr_ptr1 != &element1)
+ {
+ fprintf (stderr, "Wrong pointer has been returned when tsearch() called for the first time.\n");
+ return ++ret;
+ }
+ if (NULL == root_ptr)
+ {
+ fprintf (stderr, "Root pointer has not been set by tsearch().\n");
+ return ++ret;
+ }
+
+ element_ptr_ptr2 =
+ (int **) tsearch ((void*) &element1, &root_ptr, &cmp_func);
+ if (NULL == element_ptr_ptr2)
+ {
+ fprintf (stderr, "NULL pointer has been returned when tsearch() called for the second time.\n");
+ return ++ret;
+ }
+ if (*element_ptr_ptr2 != &element1)
+ {
+ fprintf (stderr, "Wrong pointer has been returned when tsearch() called for the second time.\n");
+ ++ret;
+ }
+ if (element_ptr_ptr2 != element_ptr_ptr1)
+ {
+ fprintf (stderr, "Wrong element has been returned when tsearch() called for the second time.\n");
+ ++ret;
+ }
+
+ element_ptr_ptr2 =
+ (int **) tfind ((void*) &element1, &root_ptr, &cmp_func);
+ if (NULL == element_ptr_ptr2)
+ {
+ fprintf (stderr, "NULL pointer has been returned by tfind().\n");
+ ++ret;
+ }
+ if (*element_ptr_ptr2 != &element1)
+ {
+ fprintf (stderr, "Wrong pointer has been returned when by tfind().\n");
+ ++ret;
+ }
+ if (element_ptr_ptr2 != element_ptr_ptr1)
+ {
+ fprintf (stderr, "Wrong element has been returned when tsearch() called for the second time.\n");
+ ++ret;
+ }
+
+ element_ptr_ptr1 =
+ (int **) tdelete ((void*) &element1, &root_ptr, &cmp_func);
+ if (NULL == element_ptr_ptr1)
+ {
+ fprintf (stderr, "NULL pointer has been returned by tdelete().\n");
+ ++ret;
+ }
+ if (NULL != root_ptr)
+ {
+ fprintf (stderr, "Root pointer has not been set to NULL by tdelete().\n");
+ ++ret;
+ }
+
+ return ret;
+}
+ ]]
+ )
+ ],
+ [AC_DEFINE([[MHD_USE_SYS_TSEARCH]], [[1]], [Define to 1 if you have properly working tsearch(), tfind() and tdelete() functions.])]
+ )
+ ],
+ [], [AC_INCLUDES_DEFAULT]
+)
+AM_CONDITIONAL([MHD_USE_SYS_TSEARCH], [[test "x$mhd_cv_sys_tsearch_usable" = "xyes" || test "x$mhd_cv_sys_tsearch_usable" = "xassuming yes"]])
# Optional headers used for tests
AC_CHECK_HEADERS([sys/sysctl.h netinet/ip_icmp.h netinet/icmp_var.h], [], [],