[Bug target/52122] [4.6/4.7/4.8 Regression] incorrect ln -s replacement for mingw like targets in configure files

[daniel.f.starke at freenet dot de]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52122

--- Comment #9 from Daniel Starke <daniel.f.starke at freenet dot de> 2012-09-24 16:55:33 UTC ---
The problem in autoconf was fixed with version 2.69. I suggest to update
AC_PREREQ within the configure.ac files to this version.