+
+ dnl We get "Large Files (ILP32) not supported in strict ANSI mode."
+ dnl #error from HP standard headers unless __STDC_EXT__ is defined.
+ dnl The compiler should define it automatically, but some old g++
+ dnl versions don't define it, so test and add it if necessary. AFAIK
+ dnl the problem only affects the C++ compiler so it is added to
+ dnl CXXFLAGS only.
+ if test "$USE_HPUX" = 1 -a "$GXX" = "yes"; then
+ AC_CACHE_CHECK(
+ [if -D__STDC_EXT__ is required],
+ wx_cv_STDC_EXT_required,
+ [
+ AC_LANG_SAVE
+ AC_LANG_CPLUSPLUS
+ AC_TRY_COMPILE(
+ [],
+ [
+ #ifndef __STDC_EXT__
+ choke me
+ #endif
+ ],
+ wx_cv_STDC_EXT_required=no,
+ wx_cv_STDC_EXT_required=yes
+ )
+ AC_LANG_RESTORE
+ ]
+ )
+ if test "x$wx_cv_STDC_EXT_required" = "xyes"; then
+ CXXFLAGS="$CXXFLAGS -D__STDC_EXT__"
+ fi
+ fi