diff options
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 124 |
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], [], [], |