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f30d8b0188
* m4/readline.m4: Set gnupg_cv_have_readline. * configure.ac: Add readline support to summary output. -- Readline is an optional feature which is build if the readline development files are available on the build systems. Too often they are missing on a (new) build machine which at least makes debugging inconvenient. Backport useful code from fixes for bug 1447. * configure.ac: Cehck for inet_ntop. * m4/libcurl.m4: Provide a #define for the version of the curl library. -- We do not have keyserver helpers anymore but this fixes may come handy eventually.