Re: how to use AC_LIB_LINKFLAGS with a multi-library package?
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Hi Bruno, Bruno Haible wrote: > >> 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. > > I agree, what you need is a 'configure --help' that proposes > > --with-ffcall-prefix[=DIR] search for ffcall in DIR/include and DIR/lib > --without-ffcall-prefix don't search for ffcall in includedir and libdir > > I would use an AC_ARG_WITH that produces this help output and then assigns > the value of the with_ffcall_prefix variable to with_avcall_prefix and > with_callback_prefix. the problem is that AC_LIB_LINKFLAGS_BODY does all the checking work AND also calls AC_LIB_ARG_WITH. I suggest that AC_LIB_LINKFLAGS_BODY is split into the checking part and the arg-with part - then the checking part could be used with ffcall.m4 I also suggest that ffcall.m4 is added to gnulib (together with sigsegv.m4 from clisp), just like iconv.m4 is in gnulib. Sam. -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.6 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFHTYQxPp1Qsf2qnMcRAk3qAJ9y1NaL4GTwtp4+L7UJa1mcB5oVBgCfbYDF /qIRbkeotLNUwYAyIkgc7nw= =QQW7 -END PGP SIGNATURE-
Re: how to use AC_LIB_LINKFLAGS with a multi-library package?
Hi Sam, > 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. I agree, what you need is a 'configure --help' that proposes --with-ffcall-prefix[=DIR] search for ffcall in DIR/include and DIR/lib --without-ffcall-prefix don't search for ffcall in includedir and libdir I would use an AC_ARG_WITH that produces this help output and then assigns the value of the with_ffcall_prefix variable to with_avcall_prefix and with_callback_prefix. Bruno
how to use AC_LIB_LINKFLAGS with a multi-library package?
-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-
