-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 How do I check for a package (ffcall) which consists of several libraries (avcall and callback)? I do not want to force the user to do pass the prefix twice: "--with-avcall-prefix=/usr/local --with-callback-prefix=/usr/local" I want "--with-ffcall-prefix=/usr/local" instead.
my first attempt: AC_DEFUN([CL_FFCALL],[dnl AC_ARG_WITH([ffcall], AC_HELP_STRING([--with-ffcall],[use (default is YES, if present)]), [cl_cv_use_ffcall=$withval], [cl_cv_use_ffcall=no]) AC_CACHE_CHECK([whether to use ffcall],[cl_cv_use_ffcall],[cl_cv_use_ffcall=yes]) AC_REQUIRE([AC_LIB_PREPARE_PREFIX])dnl prerequisite of AC_LIB_LINKFLAGS_BODY AC_REQUIRE([AC_LIB_RPATH])dnl prerequisite of AC_LIB_LINKFLAGS_BODY - --->>>>>>>AC_LIB_LINKFLAGS_BODY([ffcall])dnl set LIBFFCALL et al if test $cl_cv_use_ffcall = yes; then AC_CACHE_CHECK([whether ffcall is present],[cl_cv_have_ffcall],[dnl cl_cv_have_ffcall=no AC_CHECK_HEADERS(avcall.h callback.h) AC_SEARCH_LIBS(__builtin_avcall,avcall) AC_SEARCH_LIBS(is_callback,callback) if test $ac_cv_header_avcall_h = yes -a $ac_cv_header_callback_h = yes \ -o $ac_cv_search___builtin_avcall = yes -o $ac_cv_search_is_callback = yes then cl_cv_have_ffcall=yes fi fi])]) is clearly wrong because there is no libffcall.so, one should be checking for libavcall.so and libcallback.so instead, so - --->>>>>>>AC_LIB_LINKFLAGS_BODY([ffcall]) should be replaced with - --->>>>>>>AC_LIB_LINKFLAGS_BODY([avcall]) - --->>>>>>>AC_LIB_LINKFLAGS_BODY([callback]) which will add options --with-avcall-prefix and --with-callback-prefix instead of --with-ffcall-prefix. For a moment I thought AC_LIB_LINKFLAGS_BODY([ffcall],[avcall callback]) would do the trick, but now I doubt that: there is really no libffcall library, so AC_LIB_LINKFLAGS_BODY will fail... Any suggestions? thanks. Sam. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFHTJ6nPp1Qsf2qnMcRAuA8AKCDgcH9qj6Tdrt61Pf8CBhFoc22eQCeKLcC pk7k2T5dMeIqH/xuBtaRtWQ= =RX0E -----END PGP SIGNATURE-----