Hi, 

I would like to build csound5 on debian sid and installed the debian
packages `libportmidi0' and `libportmidi-dev'.  But still scons
complains with

  Checking for C library portmidi... (cached) no

When trying to understand why the `portmidiFound' test fails, I get the
following:

  gcc -o \
  >   conftest_3 -Wl,-Bdynamic conftest_3.o -L. -L. -L/usr/local/lib -L.
-L. \
  >   -L/usr/lib/fltk-1.1 -L/usr/lib/j2sdk1.5-sun/include -lsndfile
-lportaudio -lportmidi
  /usr/lib/gcc/i486-linux-gnu/4.2.3/../../../../lib/libportmidi.so:
undefined reference to `Pt_Start'
  /usr/lib/gcc/i486-linux-gnu/4.2.3/../../../../lib/libportmidi.so:
undefined reference to `Pt_Time'
  /usr/lib/gcc/i486-linux-gnu/4.2.3/../../../../lib/libportmidi.so:
undefined reference to `Pt_Started'
  collect2: ld returned 1 exit status

What can I do?

Might this be caused by the debian portmidi packages (which seem to be
from 2004)?

Should I install portmidi from source?

Thanks for your help, Dietrich


By the way, is this the right mailing list to ask such questions?

---
Here the failing test in more detail:

mkdir -p /tmp/conftest
cd /tmp/conftest

cat > conftest_3.c < /usr/lib/gcc/i486-linux-gnu/4.2.3/../../../../lib/libportmidi.so:
undefined reference to `Pt_Start'
> /usr/lib/gcc/i486-linux-gnu/4.2.3/../../../../lib/libportmidi.so:
undefined reference to `Pt_Time'
> /usr/lib/gcc/i486-linux-gnu/4.2.3/../../../../lib/libportmidi.so:
undefined reference to `Pt_Started'
> collect2: ld returned 1 exit status

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It's a farce/thriller/romance... and I don't remember if Csound is 
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The debut of Penny Bell's's musical composition, featuring the use of 
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///////////
If any of you guys want to write a customer review - the winner is also 
chosen by popularity from customer responses... hint... hint... wink... 
wink...

Jeff Harrington
http://jeffharrington.org

Hi Felipe,

On Thu, 2008-01-17 at 12:16 -0300, Felipe Sateler wrote:
> On Thursday 17 January 2008 11:31:29 Dietrich Bollmann wrote:
> >   Checking for C library portmidi... (cached) no
> 
> This seems to indicate that the test is not actually being run. You could try 
> deleting the scons cache (rm -r .scon*), and then trying again.
> Note that there are some already-built debian packages (by me), which you are 
> welcome to test, available at http://cs.bath.ac.uk/jpff/Csound5/debian
> -- 
> Felipe Sateler

Even after deleting the scons cache the result is the same.
(This time: Checking for C library portmidi... no )

In order to understand why the test failed I looked at the `config.log'
file where I found the following:

------------
...snip...
scons: Configure: Checking for C library portmidi... 
.sconf_temp/conftest_3.c <-
  |
  |
  |#include "portmidi.h"
  |
  |int
  |main() {
  |  
  |return 0;
  |}
  |
gcc -o .sconf_temp/conftest_3.o -c -Wall -g -O2 -DLINUX -DPIPES -DSDFT
-DBETA -DHAVE_SOCKETS -I. -IH -I/usr/include/fltk-1.1 -I/usr/local/incl
ude -I/usr/include -I/usr/include
-I/usr/X11R6/include .sconf_temp/conftest_3.c
gcc -o .sconf_temp/conftest_3 -Wl,-Bdynamic .sconf_temp/conftest_3.o -L.
-L. -L/usr/local/lib -L. -L. -L/usr/lib/fltk-1.1 -L/usr/lib/j2sdk1.5-
sun/include -lsndfile -lportaudio -lportmidi
/usr/lib/gcc/i486-linux-gnu/4.2.3/../../../../lib/libportmidi.so:
undefined reference to `Pt_Start'
/usr/lib/gcc/i486-linux-gnu/4.2.3/../../../../lib/libportmidi.so:
undefined reference to `Pt_Time'
/usr/lib/gcc/i486-linux-gnu/4.2.3/../../../../lib/libportmidi.so:
undefined reference to `Pt_Started'
collect2: ld returned 1 exit status
scons: Configure: no
...ship...
------------

Then I tried the test manually for myself again (see my last email) and
got - the same of course :)

------------
 gcc -o \
>   conftest_3 -Wl,-Bdynamic conftest_3.o -L. -L. -L/usr/local/lib -L.
-L. \
>   -L/usr/lib/fltk-1.1 -L/usr/lib/j2sdk1.5-sun/include -lsndfile
-lportaudio -lportmidi
/usr/lib/gcc/i486-linux-gnu/4.2.3/../../../../lib/libportmidi.so:
undefined reference to `Pt_Start'
/usr/lib/gcc/i486-linux-gnu/4.2.3/../../../../lib/libportmidi.so:
undefined reference to `Pt_Time'
/usr/lib/gcc/i486-linux-gnu/4.2.3/../../../../lib/libportmidi.so:
undefined reference to `Pt_Started'
collect2: ld returned 1 exit status
------------

The linker couldn't find the references for `Pt_Start', `Pt_Time' and
`Pt_Started'.

I tested the csound debian packages but would like to fiddle around with
the sources from time to time :)

Concerning your second mail:

On Thu, 2008-01-17 at 12:22 -0300, Felipe Sateler wrote: 
> On Thursday 17 January 2008 12:16:11 Felipe Sateler wrote:
> > On Thursday 17 January 2008 11:31:29 Dietrich Bollmann wrote:
> Duh, I somehow skipped the "undefined symbols" part. 
> 
> This is certainly strange. My scons log doesn't show this step. conftest_3 is 
> only compiled into an object file, not a program. Maybe this is related to 
> the dirty cache?

Did you look into the `config.log' file?

In the case of portaudio for which the test succeeded there is:

--------------
scons: Configure: Checking for C library portaudio... 
.sconf_temp/conftest_2.c <-
  |
  |
  |#include "portaudio.h"
  |
  |int
  |main() {
  |  
  |return 0;
  |}
  |
gcc -o .sconf_temp/conftest_2.o -c -Wall -g -O2 -DLINUX -DPIPES -DSDFT -DBETA -DHAVE_SOCKETS -I. -IH -I/usr/include/fltk-1.1 -I/usr/local/incl
ude -I/usr/include -I/usr/include -I/usr/X11R6/include .sconf_temp/conftest_2.c
gcc -o .sconf_temp/conftest_2 -Wl,-Bdynamic .sconf_temp/conftest_2.o -L. -L. -L/usr/local/lib -L. -L. -L/usr/lib/fltk-1.1 -L/usr/lib/j2sdk1.5-
sun/include -lsndfile -lportaudio
scons: Configure: yes
---------------

So I suppose in your case it looked like the following for portmidi?:

---------------
scons: Configure: Checking for C library portmidi... 
.sconf_temp/conftest_3.c <-
  |
  |
  |#include "portmidi.h"
  |
  |int
  |main() {
  |  
  |return 0;
  |}
  |
gcc -o .sconf_temp/conftest_3.o -c -Wall -g -O2 -DLINUX -DPIPES -DSDFT -DBETA -DHAVE_SOCKETS -I. -IH -I/usr/include/fltk-1.1 -I/usr/local/incl
ude -I/usr/include -I/usr/include -I/usr/X11R6/include .sconf_temp/conftest_3.c
gcc -o .sconf_temp/conftest_3 -Wl,-Bdynamic .sconf_temp/conftest_3.o -L. -L. -L/usr/local/lib -L. -L. -L/usr/lib/fltk-1.1 -L/usr/lib/j2sdk1.5-
sun/include -lsndfile -lportaudio -lportmidi
scons: Configure: yes
----------------

and not - as in my case - like

----------------
...snip...
gcc -o .sconf_temp/conftest_3 -Wl,-Bdynamic .sconf_temp/conftest_3.o -L. -L. -L/usr/local/lib -L. -L. -L/usr/lib/fltk-1.1 -L/usr/lib/j2sdk1.5-
sun/include -lsndfile -lportaudio -lportmidi
/usr/lib/gcc/i486-linux-gnu/4.2.3/../../../../lib/libportmidi.so: undefined reference to `Pt_Start'
/usr/lib/gcc/i486-linux-gnu/4.2.3/../../../../lib/libportmidi.so: undefined reference to `Pt_Time'
/usr/lib/gcc/i486-linux-gnu/4.2.3/../../../../lib/libportmidi.so: undefined reference to `Pt_Started'
collect2: ld returned 1 exit status
scons: Configure: no
----------------

:(

I fear the debian package might be old and I have to install portmidi from 
source in order to make it work with csound5.

But I am not sure if this really is the right way to go ... that's why I am 
asking for help.

Did you compile on Debian sid without these problems?

Thanks for your help, Dietrich