+dnl check for wchar_t
+AC_CACHE_CHECK([for wchar_t], wx_cv_type_wchar_t,
+[
+ AC_TRY_COMPILE([#include <wchar.h>],
+ [
+ wchar_t wc, *ws;
+ wc = L'a';
+ ws = L"Hello, world!";
+ ],
+ wx_cv_type_wchar_t=yes,
+ AC_TRY_COMPILE([#include <stdlib.h>],
+ [
+ wchar_t wc, *ws;
+ wc = L'a';
+ ws = L"Hello, world!";
+ ],
+ wx_cv_type_wchar_t=yes,
+ wx_cv_type_wchar_t=no)
+ )
+])
+
+if test "$wx_cv_type_wchar_t" = "yes"; then
+ AC_DEFINE(wxUSE_WCHAR_T)
+fi
+
+dnl check what exactly size_t is on this machine - this is necessary to avoid
+dnl ambiguos overloads in several places, notably wx/string.h and wx/array.h
+AC_LANG_SAVE
+AC_LANG_CPLUSPLUS
+AC_CACHE_CHECK([if size_t is unsigned int],
+ wx_cv_size_t_is_uint,
+ dnl an obvious check like AC_TRY_COMPILE[struct Foo { ... };] doesn't work
+ dnl with egcs (at least) up to 1.1.1 as it allows you to compile duplicate
+ dnl methods in a local class (i.e. class inside a function) declaration
+ dnl without any objections!!
+ dnl
+ dnl hence the hack below: we must have Foo at global scope!
+ AC_TRY_COMPILE([#include <stddef.h>],
+ [
+ return 0; }
+
+ struct Foo { void foo(size_t); void foo(unsigned int); };
+
+ int bar() {
+ ],
+ wx_cv_size_t_is_uint=no,
+ wx_cv_size_t_is_uint=yes
+ )
+)
+
+if test "$wx_cv_size_t_is_uint" = "yes"; then
+ AC_DEFINE(wxSIZE_T_IS_UINT)
+else
+ AC_CACHE_CHECK([if size_t is unsigned long],
+ wx_cv_size_t_is_ulong,
+ AC_TRY_COMPILE([#include <stddef.h>],
+ [
+ return 0; }
+
+ struct Foo { void foo(size_t); void foo(unsigned long); };
+
+ int bar() {
+ ],
+ wx_cv_size_t_is_ulong=no,
+ wx_cv_size_t_is_ulong=yes
+ )
+ )
+
+ if test "$wx_cv_size_t_is_ulong" = "yes"; then
+ AC_DEFINE(wxSIZE_T_IS_ULONG)
+ fi
+fi
+
+AC_LANG_RESTORE
+
projects / wxWidgets.git / blobdiff