Hi Bob, * Bob Rossi wrote on Tue, Jul 05, 2005 at 05:25:21PM CEST: > > I am having a little trouble using autoconf to configure my package. > Currently, I am tring to build a package that depends on another > package. Basically CGDB (main package) depends on Readline (second > package). > > I am using > AC_CONFIG_SUBDIRS(readline-5.0) > to configure readline. This works well. > > There is 2 problems I need to solve. The first is, since readline is > installed in cgdb/readline-5.0, I need a way of telling > > AC_CHECK_HEADERS(readline.h history.h) > AC_CHECK_LIB(readline, readline, > [AC_DEFINE(HAVE_LIBREADLINE, 1, readline library)], > AC_MSG_ERROR([Packaged readline failed to build. > Please submit a bug report.])) > > the above 2 commands how to find the installed readline. For instance, > AC_CHECK_LIB does not know to look in cgdb/readline-5.0 for readline.h. > What is the best way to accomplish this? Well, I would give the user the choice to - either use your shipped readline library - or use a previously installed readline library - or (if appropriate) disable readline functionality. Something like a --with-readline[=included] might be useful, although I don't know of an established convention for the optional `=included' part. > Also, AC_CHECK_LIB can not even look for libreadline.a until after the > "make" is done. Is there a way to ./configure && make && make install > the readline package, and then continue with CGDB's configure? Well, if you use your prepackaged readline, there is no need to check for either the headers nor the library -- you know they _will_ be there. (Of course, in that case your configure.ac should set appropriate flags for preprocessor and linker/libs.) So, the AC_CHECK_HEADERS/ AC_CHECK_LIB tests should not be invoked then. Use ordering in toplevel Makefile.am variable SUBDIRS to ensure readline gets built before its users. Regards, Ralf _______________________________________________ Autoconf mailing list Autoconf@xxxxxxx http://lists.gnu.org/mailman/listinfo/autoconf
