Howdy all! When I run the configure for HDF5, an open-source scientific data library, I get the following warning: checking winsock.h presence... yes configure: WARNING: winsock.h: present but cannot be compiled configure: WARNING: winsock.h: check for missing prerequisite headers? configure: WARNING: winsock.h: see the Autoconf documentation configure: WARNING: winsock.h: section "Present But Cannot Be Compiled" configure: WARNING: winsock.h: proceeding with the preprocessor's result configure: WARNING: winsock.h: in the future, the compiler will take precedence configure: WARNING: ## ------------------------------------ ## configure: WARNING: ## Report this to hdfhelp@xxxxxxxxxxxxx ## configure: WARNING: ## ------------------------------------ ## checking for winsock.h... yes 1 - Is there any way to turn this warning off? I really don't want users emailing this to the hdf support staff, since their answer is going to be: just ignore it. 2 - Is there any way to make autoconf go with the "future" behavior now, and say that winsock.h is not present, since it can't be compiled? The info pages rather imply that this test should fail, since winsock.h is not compilable. What am I missing? >From info: Previous versions of Autoconf merely checked whether the header was accepted by the preprocessor. This was changed because the old test was inappropriate for typical uses. Headers are typically used to compile, not merely to preprocess, and the old behavior sometimes accepted headers that clashed at compile-time. If you need to check whether a header is preprocessable, you can use `AC_PREPROC_IFELSE' (*note Running the Preprocessor::). Thanks! Ed -- Ed Hartnett -- ed@xxxxxxxxxxxxxxxx _______________________________________________ Autoconf mailing list Autoconf@xxxxxxx http://lists.gnu.org/mailman/listinfo/autoconf
