Hi Pat, On Mon, Sep 26, 2005 at 12:51:53AM +0200, Patrice Dumas wrote: > So it seems that there is a kind of caching that cannot be disabled and > that is preventing such tests to work. Indeed, you can switch off the cache _file_, so that it is not read at the beginning and written at the end, but you cannot switch off the "internal" caching of autoconf. > checking for netcdf.h... no > checking for netcdf.h... (cached) no ... while you would expect: checking for netcdf.h... no checking for netcdf.h... yes which really looks weird, so you added an echo to get: checking for netcdf.h... no checking for netcdf.h... found with libnc-dap yes Anyway, the internal cache is a limitation of current autoconf. I think there is a very natural workaround/fix: AC_CHECK_HEADERS([hdf2/netcdf.h]) AC_CHECK_HEADERS([libnc-dap/netcdf.h]) or, if there is possibility that netcdf.h includes other files from the same directory: CPPFLAGS_save=$CPPFLAGS CPPFLAGS="$CPPFLAGS -I/usr/include/hdf2" AC_CHECK_HEADERS([hdf2/netcdf.h]) CPPFLAGS="$CPPFLAGS_save" CPPFLAGS_save=$CPPFLAGS CPPFLAGS="$CPPFLAGS -I/usr/include/libnc-dap/" AC_CHECK_HEADERS([libnc-dap/netcdf.h]) CPPFLAGS=$CPPFLAGS_save BTW: The quotes in some of your assignments were redundant, so I removed theme. (Documented in the chapter on portable shell programming in the Autoconf manual.) Then you have defines HAVE_HDF2_NETCDF_H and HAVE_LIBNC_DAP_NETCDF_H. Do you like it this way? Stepan Kasal _______________________________________________ Autoconf mailing list Autoconf@xxxxxxx http://lists.gnu.org/mailman/listinfo/autoconf
