+dnl With Sun CC, temporaries have block scope by default. This flag is needed
+dnl to get the expression scope behaviour that conforms to the standard.
+if test "x$SUNCXX" = xyes; then
+ CXXFLAGS="$CXXFLAGS -features=tmplife"
+fi
+
+dnl check for std::string or std::wstring
+if test "$wxUSE_STD_STRING" = "yes" -o "$wxUSE_STL" = "yes"; then
+ AC_LANG_PUSH(C++)
+
+ if test "$wxUSE_UNICODE" = "yes"; then
+ std_string="std::wstring"
+ char_type="wchar_t"
+ else
+ std_string="std::string"
+ char_type="char"
+ fi
+
+ dnl check if <string> declares std::wstring
+ AC_MSG_CHECKING([for $std_string in <string>])
+ AC_TRY_COMPILE([#include <string>],
+ [$std_string foo;],
+ [AC_MSG_RESULT(yes)
+ AC_DEFINE(HAVE_STD_WSTRING)],
+ [AC_MSG_RESULT(no)
+ AC_MSG_CHECKING([if std::basic_string<$char_type> works])
+ AC_TRY_COMPILE([
+ #ifdef HAVE_WCHAR_H
+ # ifdef __CYGWIN__
+ # include <stddef.h>
+ # endif
+ # include <wchar.h>
+ #endif
+ #ifdef HAVE_STDLIB_H
+ # include <stdlib.h>
+ #endif
+ #include <stdio.h>
+ #include <string>
+ ],
+ [std::basic_string<$char_type> foo;
+ const $char_type* dummy = foo.c_str();],
+ [AC_MSG_RESULT(yes)],
+ [AC_MSG_RESULT([no])
+ if test "$wxUSE_STL" = "yes"; then
+ AC_MSG_ERROR([Can't use --enable-stl without $std_string or std::basic_string<$char_type>])
+ elif grep wxUSE_STD_STRING $wx_arg_cache_file >/dev/null; then
+ AC_MSG_ERROR([Can't use --enable-std_string without $std_string or std::basic_string<$char_type>])
+ else
+ AC_MSG_WARN([No $std_string or std::basic_string<$char_type>, switching to --disable-std_string])
+ wxUSE_STD_STRING=no
+ fi
+ ]
+ )
+ ])
+
+ AC_LANG_POP
+fi
+
+if test "$wxUSE_STD_IOSTREAM" = "yes"; then
+ AC_LANG_PUSH(C++)
+
+ AC_CHECK_TYPES([std::istream, std::ostream],,
+ [wxUSE_STD_IOSTREAM=no],
+ [#include <iostream>])
+
+ if test "$wxUSE_STD_IOSTREAM" != "yes"; then
+ if grep wxUSE_STD_IOSTREAM $wx_arg_cache_file >/dev/null; then
+ AC_MSG_ERROR([Can't use --enable-std_iostreams without std::istream and std::ostream])
+ else
+ AC_MSG_WARN([No std::iostreams, switching to --disable-std_iostreams])
+ fi
+ fi
+
+ AC_LANG_POP
+fi
+