Hi Matthew,
thank you for the bug report, Woodrow Setzer just uploaded a minor
bugfix and I assume he informed you off-list.
One additional note for the records:
We suggest odesolve users should switch over to the new deSolve package.
It is maintained by the the same (and two additional) authors like
odesolve. It is almost ;-) fully compatible to odesolve and will replace
it completely. The authors renamed it to deSolve, because it's able to
solve also DAE and PDE systems, not only ODEs, so the name odesolve was
too narrow and is now deprecated.
Note that deSolve has a package vignette about writing models in
compiled code.
Thomas Petzoldt
Redding, Matthew wrote:
Hello R Developers,
This is my first foray into using c-code with R, so please forgive my
foolishness.
I had a look at the archives and did not find anything on this, so
hopefully I am not doubling up.
I have tried to use R cmd to create an object file from the odesolve
dynload example.
I am using windows and have just installed rtools, and have the latest
version of stable R (2..7.2).
This is what happened:
C:\Program Files\R\R-2.7.2\library\odesolve\dynload\c>Rcmd SHLIB mymod.c
making mymod.d from mymod.c
windres --preprocessor="gcc -E -xc -DRC_INVOKED" -I
C:/PROGRA~1/R/R-27~1.2/include -i mymod_res.rc -o mymod_res.o
gcc -std=gnu99 -shared -s -o mymod.dll mymod.def mymod.o mymod_res.o
-LC:/PROGRA~1/R/R-27~1.2/bin -lR
Cannot export myderivs: symbol not found
Cannot export myjac: symbol not found
Cannot export mymod: symbol not found
mymod.o: In function `mymod':
/home/setzer/tasks/Programming_Projects/odesolve/odesolve/inst/dynload/c
/mymod.c:14: undefined reference to `GLOBAL_OFFSET_TA
BLE_'
mymod.o: In function `myderivs':
/home/setzer/tasks/Programming_Projects/odesolve/odesolve/inst/dynload/c
/mymod.c:21: undefined reference to `GLOBAL_OFFSET_TA
BLE_'
mymod.o: In function `myjac':
/home/setzer/tasks/Programming_Projects/odesolve/odesolve/inst/dynload/c
/mymod.c:30: undefined reference to `GLOBAL_OFFSET_TA
BLE_'
collect2: ld returned 1 exit status
make: *** [mymod.dll] Error 1
Any ideas what I have not got set up properly? What do I need to do to
get this firing?
Advice appreciated.
Kind regards,
Matt Redding
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Thomas Petzoldt
Technische Universitaet Dresden
Institut fuer Hydrobiologie [EMAIL PROTECTED]
01062 Dresden http://tu-dresden.de/hydrobiologie/
GERMANY
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