From: Meino Christian Cramer <Meino.Cramer / gmx.de>
Subject: Re: [ANN] SQLite-Ruby 1.3.0
Date: Tue, 13 Jul 2004 07:24:33 +0200 (CEST)

Hi Jamis,

 an addition:

 After activating gcc-3.4.1 be hand, sqlite-ruby 1.3.0 does compile
 and install fine.

 So the remaining question is: What source of knowledge does the
 install process of sqlite-ruby use to figure out that there is a
 gcc-3.4.1 "somewhere in the deep of the system" installed and hidden
 from the world (ok,ok, I am definetly /NOT/ Shakespeare ;O))) and to
 choose the OPTIONS for that compiler but then call gcc-3.3.4 -- and
 fail. 

 Interesting...

 Two other things:
 Do you think it would be possible to have an install process which is
 separated from the configure/compile process for sqlite-ruby? I think
 it is a good idea to do as less as possible as root in general.

 When I searched for reasons of the gcc-mystique I encountered on my
 system :) I found that sqlite itsself can generate HTML-output.
 Is it possible to get such an output via sqlite-ruby?

 Ruby.use!
 Meino

> From: Jamis Buck <jgb3 / email.byu.edu>
> Subject: Re: [ANN] SQLite-Ruby 1.3.0
> Date: Tue, 13 Jul 2004 07:20:05 +0900
> 
> Hi Jamis,
> 
>  thank you for your reply ! :)
> 
>  Things I have installed between 1.2.9.1 and 1.3.0
> 
>  Fox 1.2.6
>  scintilla 1.6.1
>  scite 1.6.1
>  fxscintilla 1.6.1
>   gem 0.7
>   fxruby 1.2.0
> 
>   May be, there is some "bad influence" ? ;)
> 
>   my mkmf.log:
> 
>   have_library: checking for main() in -lsqlite... -------------------- no
> 
>   "gcc -o conftest -I/home/mccramer/tmp/sqlite-ruby-1.3.0/build -I/usr/lib/ruby/1.8/i686-linux  -O3 -mtune=athlon-xp -mcpu=athlon-xp -mfpmath=sse -funroll-loops -fforce-addr -falign-functions=4 -mpreferred-stack-boundary=2 -msse -m3dnow -mmmx  -fPIC conftest.c  -L"/usr/lib"      -lruby-static -lsqlite  -ldl -lcrypt -lm   -lc"
>   cc1: error: invalid option `tune=athlon-xp'
>   checked program was:
>   /* begin */
>   
>   /*top*/
>   int main() { return 0; }
>   int t() { main(); return 0; }
>   /* end */
>   
>   "gcc -o conftest -I/home/mccramer/tmp/sqlite-ruby-1.3.0/build -I/usr/lib/ruby/1.8/i686-linux  -O3 -mtune=athlon-xp -mcpu=athlon-xp -mfpmath=sse -funroll-loops -fforce-addr -falign-functions=4 -mpreferred-stack-boundary=2 -msse -m3dnow -mmmx  -fPIC conftest.c  -L"/usr/lib"      -lruby-static -lsqlite  -ldl -lcrypt -lm   -lc"
>   cc1: error: invalid option `tune=athlon-xp'
>   checked program was:
>   /* begin */
>   
>   
>   /*top*/
>   int main() { return 0; }
>   int t() { void ((*volatile p)()); p = (void ((*)()))main; return 0; }
>   /* end */
> 
>   --------------------
>   
>   have_header: checking for sqlite.h... -------------------- no
>   
>   "gcc -E -I/home/mccramer/tmp/sqlite-ruby-1.3.0/build -I/usr/lib/ruby/1.8/i686-linux  -O3 -mtune=athlon-xp -mcpu=athlon-xp -mfpmath=sse -funroll-loops -fforce-addr -falign-functions=4 -mpreferred-stack-boundary=2 -msse -m3dnow -mmmx  -fPIC  conftest.c -o conftest.i"
>   cc1: error: invalid option `tune=athlon-xp'
>   checked program was:
>   /* begin */
>   #include <sqlite.h>
>   /* end */
>   
>   --------------------
> 
> 
>   Now I see the source of bug: It is the "-mtune" option of gcc, which exits in
>   gcc's from version 3.4.x on. This was misinterpreted as "no sqlite installed".
> 
>   BUT:  :O)
> 
>   I have installed gcc 3.3.4 (under /usr as normal) and I have a
>   hidden installation of gcc 3.4.1 (under /opt/gcc3.4.n/), which can
>   only be activated by preceeding PATH with the appropiate path to
>   gcc-3.4.1 /manually/ and switching the CFLAGS/CXXFLAGS /manually/.
> 
>   I had installed gcc-3.4.1 for experimenting.
> 
>   When I do a "echo $CFlAGS/$CXXFlAGS" as myself I get:
> 
>     [sqlite-ruby-1.3.0/] :echo $CFLAGS 
>     -O3 -m3dnow -march=athlon-xp -mcpu=athlon-xp -mfpmath=sse -funroll-loops -fomit-frame-pointer -fforce-mem -fforce-addr -finline-functions -falign-functions=4 -mpreferred-stack-boundary=2
>     [sqlite-ruby-1.3.0/] :echo $CXXFLAGS 
>     -O3 -m3dnow -march=athlon-xp -mcpu=athlon-xp -mfpmath=sse -funroll-loops -fomit-frame-pointer -fforce-mem -fforce-addr -finline-functions -falign-functions=4 -mpreferred-stack-boundary=2
> 
>   when I do a "sudo echo $CFlAGS/$CXXFlAGS", which would be equivalent
>   to "sudo ruby install.rb" I get 
> 
>     [sqlite-ruby-1.3.0/] :sudo echo $CFLAGS 
>     -O3 -m3dnow -march=athlon-xp -mcpu=athlon-xp -mfpmath=sse -funroll-loops -fomit-frame-pointer -fforce-mem -fforce-addr -finline-functions -falign-functions=4 -mpreferred-stack-boundary=2
>     [sqlite-ruby-1.3.0/] :sudo echo $CXXFLAGS 
>     -O3 -m3dnow -march=athlon-xp -mcpu=athlon-xp -mfpmath=sse -funroll-loops -fomit-frame-pointer -fforce-mem -fforce-addr -finline-functions -falign-functions=4 -mpreferred-stack-boundary=2
> 
>  No "-mtune" option visible so far.
> 
>  I did a "grep -ril mtune" through the sqlite-ruby sources...nothing
>  (as you already know :)
> 
>  What is going on here. Does have SQlite-Ruby the seventh sense here ?
>  :)))
> 
>  Where does the "-mtune" came from ?
> 
>  Kind regards and thank you very much for your help in advance!
>  Meino