err i was gonna mail that to Ralf only, but ended mailing to the mailing list(by mistake) sry for spamming all of u guys, but if u hav any ideas, then pls do guide me... thanks! sanjay On 9/17/07, Sanjay Gianchandani <sanjay.gianchandani@xxxxxxxxx> wrote: > > Hi Ralf, > sorry for mailing you directly, but I wasnt getting much response on the > mailing list, and I am still wondering as to which direction to proceed... > these changes that u suggested, if i inject them in acspecific.m4 , wont > that serve my purpose? > I am not exactly sure though, as I am not completely aware of the flow of > autoconf... > any help would be greatly appreciated... > moreover, I read somewhere that autoconf also uses some flags at compile > time, which means that I would need to ensure that these flags work in the > same way for the "changed" compiler too, right? any ideas abt which flags > autoconf uses? > > any help would b greatly appreciated! > thanks, > sanjay > > On 9/7/07, Ralf Wildenhues <Ralf.Wildenhues@xxxxxx > wrote: > > > > Hello Sanjay, > > > > * Sanjay Gianchandani wrote on Fri, Sep 07, 2007 at 02:55:16PM CEST: > > > I have been working on Solaris, and have been trying to increase the > > > efficiency of autoconf built softwares on the system. > > > The main issue here is that autoconf by default, and as a rule, uses > > the GNU > > > based compilers to make the software, while > > > on Solaris, Sun Studio compilers prove to be much more efficient. > > > > For yourself, just get in the habit of using > > .../configure -C CC=cc CXX=CC F77=f77 FC=f95 > > > > or write a config.site file that sets these as defaults once and for > > all, for your system; see > > <http://www.gnu.org/software/autoconf/manual/html_node/Site-Defaults.html > > > > > for more information. > > > > If you want to change the defaults for your specific package, but every > > user of it, then you can put something like > > : ${CC=cc} > > : ${CXX=CC} > > # ... > > > > in your configure.ac, right before AC_PROG_CC; but be warned that users > > may not like your decision all that much and at least require that you > > do this only on Solaris. For that, invoke AC_CANONICAL_HOST and then > > match $host against *-*-solaris*: > > AC_CANONICAL_HOST > > case $host in > > *-*-solaris*) : ${CC=cc} ... ;; > > esac > > AC_PROG_CC > > > > As to changing Autoconf's defaults globally, i.e., for everyone and > > every package without package-specific modifications: preference of GCC, > > > > the GNU Compiler Collection, is a policy decision. From an effort point > > of view, you'd have more luck in improving GCC so that it ends up being > > the better compiler, than getting GNU to promote a proprietary compiler > > over its own free one. ;-) > > > > Cheers, > > Ralf > > > > > > -- > > **************************************************************************** > §âñjây > ************************Words from my heart**************************** > We dont need no education! > give us free pizza instead ;) > ***************************************************************************** > > -- **************************************************************************** §âñjây ************************Words from my heart**************************** We dont need no education! give us free pizza instead ;) ***************************************************************************** _______________________________________________ Autoconf mailing list Autoconf@xxxxxxx http://lists.gnu.org/mailman/listinfo/autoconf
