Source build cannot find jni.h

[breneez]

For kicks, I was attempting to build the NXJ project from source, per the instructions in the README. But it doesn't seem to be able to find my JNI headers (jni.h). Where is the appropriate place to specify my JDK install?

[lawrie]

Where is the build failing? I guess it is in libnxt as that is the only part that I think currently uses jni. As jlibnxt is not used for anything much yet, you can remove the build of that from SConstruct and the rest of the libnxt build should work. The build of jlibnxt worked for me, but that may be because I ran it from Eclipse. I will look at whsat I need o do ti the SConstruct file to make it work outside Eclipse.

[breneez]

Thanks for your reply,

I'm not very familiar with the output of scons, though the build.xml looks pretty similar to ant. It doesn't look like it tells you which targets it's working on like ant.

The script prints:

Code: Select all

adam@Echelon:~/esvn_wksp/lejos/lejos/trunk/libnxt$ scons
scons: Reading SConscript files ...
scons: done reading SConscript files.
scons: Building targets ...
scons: `libnxt.a' is up to date.
scons: `fwflash' is up to date.
scons: `runc' is up to date.
scons: `runjava' is up to date.
scons: `nxjupload' is up to date.
scons: `nxjflash' is up to date.
gcc -o main_jlibnxt.os -c -Wall -std=gnu99 -g -ggdb -D_NXT_LITTLE_ENDIAN -fPIC main_jlibnxt.c
In file included from main_jlibnxt.c:29:
jlibnxt.h:2:17: error: jni.h: No such file or directory
In file included from main_jlibnxt.c:29:
jlibnxt.h:15: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'jint'
jlibnxt.h:23: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'void'
jlibnxt.h:31: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'void'
jlibnxt.h:39: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'void'
jlibnxt.h:47: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'jbyteArray'
main_jlibnxt.c:31: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'jint'
main_jlibnxt.c:46: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'void'
main_jlibnxt.c:57: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'void'
main_jlibnxt.c:68: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'void'
main_jlibnxt.c:84: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'jbyteArray'
scons: *** [main_jlibnxt.os] Error 1
scons: building terminated because of errors.


I tried throwing a pathelement to my JDK include directory in with all the includepath elements, but it didn't seem to do any good.