Seek and Tell do the right thing in wxIn/OutputStream now
Check for GNU extension in configure.in: this is needed for GLIBC 2.1/GCC 2.95
-> this enables _GNU_SOURCE
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@3293 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
caches the results)
2. aclocal.m4 is automatically generated by aclocal from acinclude.m4
3. fixes to configure for Cygnus compilation (Win32)
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@2772 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775