Using gcc (in Cygwin) for JNI - resource.h not found. drand48 not found

Hello,
I am trying to use gcc for JNI. I have successfully executed simple programs like Hello World and Message Box. Now I have a C project that I am trying to use in JNI (Its FOIL 6.4 by Quinlan).
I have written the .java file and the .c (wrapper) file and am calling the top level function from FOIL. Whenever I try to run it I get several errors.
sys/resource.h: No such file or directory.
/tmp/ccGi67I4.o:state.c:(.text+0x4cb): undefined reference to `_drand48'
/tmp/ccGi67I4.o:state.c:(.text+0x85a): undefined reference to `_drand48'
I have the resource.h file in C:\cygwin\usr\include\sys but it still doesnt find it.
And drand48 is present in one of the include files, but it still gives me this error.
the way I use gcc to create the dll is:
$CYGWINBIN/gcc-3.exe -mno-cygwin -I$jdk/include -I$jdk/include/win32 -Wl,--add-stdcall-alias -shared -o foilJNI.dll foilJNI.c global.c main.c input.c output.c state.c literal.c evaluatelit.c search.c determinate.c order.c join.c utility.c finddef.c interpret.c prune.c constants.c
where $CYGWINBIN is C:\cygwin\bin
and $jdk is C:\Java\jdk1.6.0_20
Can anyone please tell me where the problem is.
Any suggestions are welcome.
Thanks
Nick

lahscin wrote:
(Its FOIL 6.4 by Quinlan).
Any suggestions are welcome.You want to do some task using a C library and then interface that to java.
Two parts, not one.
So
1. Define the task. This has nothing to do with code (java or C.)
2. Write C code that represents a library/API to achieve that task. This has nothing to do with java nor JNI.
3. Unit test 2 until it works.
4. Write JNI code to use the API from 2. This involves JNI/java.
Until you reach step 4 none of your questions have anything to do with JNI/Java. So you ask them on C forums, C compiler forums and forums specific to the library you are using.

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