Created attachment 31249 [details] apr-delete-APR_CHECK_SIZEOF_EXTENDED.patch APR_CHECK_SIZEOF_EXTENDED was written to work around deficiencies in old versions of AC_CHECK_SIZEOF. autoconf has since improved significantly. looks like the release is using autoconf-2.69, so it shouldn't be a big problem to update things. specifically, AC_CHECK_SIZEOF supports non-native types (ones that are defined in headers and not the compiler itself), and it supports detecting the size even when cross-compiling. the attached patch against trunk should do the trick.
Added to trunk in r 1871980. Backported to apr v1.7 in r 1871981.