How do I call a Java Native Interface C function from my Go code?










1














I am up with implementing my Java Native Interface functions in Golang using the golang C lib.

Now I want to convert a jstring to an UTF-8 string using the JNI function GetStringUTFChars but I get an error when doing it. These are the steps I have done:



In my Java class (called MyClass) where I have defined the JNI method, I have:



public static native void print(String msg);


Using javah, I have generated the .h-file with the function defined in C language:



JNIEXPORT void JNICALL Java_com_mypackage_MyClass_print
(JNIEnv *, jclass, jstring);


Then, in my Go code I have the following code:



package main

// #cgo CFLAGS: -I/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/include
// #cgo CFLAGS: -I/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/include/darwin
/*
#include <jni.h>
*/
import "C"

//export Java_com_mypackage_MyClass_print
func Java_com_mypackage_MyClass_print(env *C.JNIEnv, clazz C.jclass, str C.jstring)

_ = C.GetStringUTFChars(env, str, 0)




When I build the go file using:
go build -buildmode=c-shared -o libmyclass.dylib libmyclass.go
then I get the following error:



could not determine kind of name for C.GetStringUTFChars



How should I call the GetStringUTFChars defined in the JNI spec so I then can print the string with fmt.println?



EDIT 2

Removed "edit 1" since the procedure above was correct, it was just the LD_LIBRARY_PATH variable that was not set.










share|improve this question



















  • 1




    As far as I know, CGO doesn't support calling through C function pointers. So you'd have to write a small wrapper library in C with functions that take a JNIEnv* and then calls *(env)->TheActualJniFunction(env, ...
    – Michael
    Nov 11 '18 at 21:31















1














I am up with implementing my Java Native Interface functions in Golang using the golang C lib.

Now I want to convert a jstring to an UTF-8 string using the JNI function GetStringUTFChars but I get an error when doing it. These are the steps I have done:



In my Java class (called MyClass) where I have defined the JNI method, I have:



public static native void print(String msg);


Using javah, I have generated the .h-file with the function defined in C language:



JNIEXPORT void JNICALL Java_com_mypackage_MyClass_print
(JNIEnv *, jclass, jstring);


Then, in my Go code I have the following code:



package main

// #cgo CFLAGS: -I/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/include
// #cgo CFLAGS: -I/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/include/darwin
/*
#include <jni.h>
*/
import "C"

//export Java_com_mypackage_MyClass_print
func Java_com_mypackage_MyClass_print(env *C.JNIEnv, clazz C.jclass, str C.jstring)

_ = C.GetStringUTFChars(env, str, 0)




When I build the go file using:
go build -buildmode=c-shared -o libmyclass.dylib libmyclass.go
then I get the following error:



could not determine kind of name for C.GetStringUTFChars



How should I call the GetStringUTFChars defined in the JNI spec so I then can print the string with fmt.println?



EDIT 2

Removed "edit 1" since the procedure above was correct, it was just the LD_LIBRARY_PATH variable that was not set.










share|improve this question



















  • 1




    As far as I know, CGO doesn't support calling through C function pointers. So you'd have to write a small wrapper library in C with functions that take a JNIEnv* and then calls *(env)->TheActualJniFunction(env, ...
    – Michael
    Nov 11 '18 at 21:31













1












1








1







I am up with implementing my Java Native Interface functions in Golang using the golang C lib.

Now I want to convert a jstring to an UTF-8 string using the JNI function GetStringUTFChars but I get an error when doing it. These are the steps I have done:



In my Java class (called MyClass) where I have defined the JNI method, I have:



public static native void print(String msg);


Using javah, I have generated the .h-file with the function defined in C language:



JNIEXPORT void JNICALL Java_com_mypackage_MyClass_print
(JNIEnv *, jclass, jstring);


Then, in my Go code I have the following code:



package main

// #cgo CFLAGS: -I/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/include
// #cgo CFLAGS: -I/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/include/darwin
/*
#include <jni.h>
*/
import "C"

//export Java_com_mypackage_MyClass_print
func Java_com_mypackage_MyClass_print(env *C.JNIEnv, clazz C.jclass, str C.jstring)

_ = C.GetStringUTFChars(env, str, 0)




When I build the go file using:
go build -buildmode=c-shared -o libmyclass.dylib libmyclass.go
then I get the following error:



could not determine kind of name for C.GetStringUTFChars



How should I call the GetStringUTFChars defined in the JNI spec so I then can print the string with fmt.println?



EDIT 2

Removed "edit 1" since the procedure above was correct, it was just the LD_LIBRARY_PATH variable that was not set.










share|improve this question















I am up with implementing my Java Native Interface functions in Golang using the golang C lib.

Now I want to convert a jstring to an UTF-8 string using the JNI function GetStringUTFChars but I get an error when doing it. These are the steps I have done:



In my Java class (called MyClass) where I have defined the JNI method, I have:



public static native void print(String msg);


Using javah, I have generated the .h-file with the function defined in C language:



JNIEXPORT void JNICALL Java_com_mypackage_MyClass_print
(JNIEnv *, jclass, jstring);


Then, in my Go code I have the following code:



package main

// #cgo CFLAGS: -I/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/include
// #cgo CFLAGS: -I/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/include/darwin
/*
#include <jni.h>
*/
import "C"

//export Java_com_mypackage_MyClass_print
func Java_com_mypackage_MyClass_print(env *C.JNIEnv, clazz C.jclass, str C.jstring)

_ = C.GetStringUTFChars(env, str, 0)




When I build the go file using:
go build -buildmode=c-shared -o libmyclass.dylib libmyclass.go
then I get the following error:



could not determine kind of name for C.GetStringUTFChars



How should I call the GetStringUTFChars defined in the JNI spec so I then can print the string with fmt.println?



EDIT 2

Removed "edit 1" since the procedure above was correct, it was just the LD_LIBRARY_PATH variable that was not set.







c go jni cgo javah






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Nov 13 '18 at 16:47

























asked Nov 11 '18 at 20:15









Rox

48193567




48193567







  • 1




    As far as I know, CGO doesn't support calling through C function pointers. So you'd have to write a small wrapper library in C with functions that take a JNIEnv* and then calls *(env)->TheActualJniFunction(env, ...
    – Michael
    Nov 11 '18 at 21:31












  • 1




    As far as I know, CGO doesn't support calling through C function pointers. So you'd have to write a small wrapper library in C with functions that take a JNIEnv* and then calls *(env)->TheActualJniFunction(env, ...
    – Michael
    Nov 11 '18 at 21:31







1




1




As far as I know, CGO doesn't support calling through C function pointers. So you'd have to write a small wrapper library in C with functions that take a JNIEnv* and then calls *(env)->TheActualJniFunction(env, ...
– Michael
Nov 11 '18 at 21:31




As far as I know, CGO doesn't support calling through C function pointers. So you'd have to write a small wrapper library in C with functions that take a JNIEnv* and then calls *(env)->TheActualJniFunction(env, ...
– Michael
Nov 11 '18 at 21:31












1 Answer
1






active

oldest

votes


















1














JNI functions like GetStringUTFChars are function pointers and cannot be called directly from Go. You have to wrap the functions you need in a separate C file. e.g.



jx.c



#include <jni.h>

const char* jx_GetStringUTFChars(JNIEnv *env, jstring str, jboolean *isCopy)
return (*env)->GetStringUTFChars(env, str, isCopy);



After creating a library from the C file, your Go file will look something like this:



package main

/*
#cgo CFLAGS: -I/usr/java/jdk1.8.0_162/include/ -I/usr/java/jdk1.8.0_162/include/linux/
#cgo LDFLAGS: -L$SRCDIR/ -ljx

#include "jx.h"
*/
import "C"
import (
"fmt"
)

//export Java_com_mypackage_MyClass_print
func Java_com_mypackage_MyClass_print(env *C.JNIEnv, clazz C.jclass, str C.jstring)
s := C.jx_GetStringUTFChars(env, str, (*C.jboolean)(nil))
fmt.Println(C.GoString(s))


func main()


The reason why there is a separate C file just for the wrapper function is because of this clause in the documentation:




Using //export in a file places a restriction on the preamble: since it is copied into two different C output files, it must not contain any definitions, only declarations.







share|improve this answer




















  • Thanks! So the steps I need to to is first build a shared library of jx.c using gcc -shared -fPIC -I/.../libjx.so and then point to that shared library using LDFLAGS in the Go file? Correct? I have tried that and it compiles when I do go build... but when running my Java program that uses my JNI method, then I get Exception in thread "main" java.lang.UnsatisfiedLinkError: /home/rox/jnijava/target/libjnijava.so: libjx.so: cannot open shared object file: No such file or directory but both libjnijava.so (created by go build) and libjx.so (created by gcc -shared...) exist on that path.
    – Rox
    Nov 13 '18 at 8:26










  • Yes, build the C file first and then you can create a library using ar q libjx.a jx.c. Then build your go shared object, e.g. go build -buildmode=c-shared -o gox.so so.go. You might need to add libjx.so in your LD_LIBRARY_PATH. I suggest stackoverflow.com/questions/13428910/…
    – ssemilla
    Nov 13 '18 at 11:59










  • Please have a look at my edit above where I added the steps to reproduce the error on Linux with Java 11. I have set LD_LIBRARY_PATH to point at the folder with the shared objects. I have also tried with setting the Java option -Djava.library.path but with no luck. So I am still stuck :-(
    – Rox
    Nov 13 '18 at 15:01










  • This: /home/rox/gojni/target/libgojni.so is not = to this: /home/rox/jnijava/target/libjnijava.so.
    – ssemilla
    Nov 13 '18 at 15:59










  • Thanks! I was testing with some different projects on different platforms and copy-pasted from wrong project. :-) Got it working now though. It turned out that the LD_LIBRARY_PATH wasn´t set for the session I used.
    – Rox
    Nov 13 '18 at 16:44










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1 Answer
1






active

oldest

votes








1 Answer
1






active

oldest

votes









active

oldest

votes






active

oldest

votes









1














JNI functions like GetStringUTFChars are function pointers and cannot be called directly from Go. You have to wrap the functions you need in a separate C file. e.g.



jx.c



#include <jni.h>

const char* jx_GetStringUTFChars(JNIEnv *env, jstring str, jboolean *isCopy)
return (*env)->GetStringUTFChars(env, str, isCopy);



After creating a library from the C file, your Go file will look something like this:



package main

/*
#cgo CFLAGS: -I/usr/java/jdk1.8.0_162/include/ -I/usr/java/jdk1.8.0_162/include/linux/
#cgo LDFLAGS: -L$SRCDIR/ -ljx

#include "jx.h"
*/
import "C"
import (
"fmt"
)

//export Java_com_mypackage_MyClass_print
func Java_com_mypackage_MyClass_print(env *C.JNIEnv, clazz C.jclass, str C.jstring)
s := C.jx_GetStringUTFChars(env, str, (*C.jboolean)(nil))
fmt.Println(C.GoString(s))


func main()


The reason why there is a separate C file just for the wrapper function is because of this clause in the documentation:




Using //export in a file places a restriction on the preamble: since it is copied into two different C output files, it must not contain any definitions, only declarations.







share|improve this answer




















  • Thanks! So the steps I need to to is first build a shared library of jx.c using gcc -shared -fPIC -I/.../libjx.so and then point to that shared library using LDFLAGS in the Go file? Correct? I have tried that and it compiles when I do go build... but when running my Java program that uses my JNI method, then I get Exception in thread "main" java.lang.UnsatisfiedLinkError: /home/rox/jnijava/target/libjnijava.so: libjx.so: cannot open shared object file: No such file or directory but both libjnijava.so (created by go build) and libjx.so (created by gcc -shared...) exist on that path.
    – Rox
    Nov 13 '18 at 8:26










  • Yes, build the C file first and then you can create a library using ar q libjx.a jx.c. Then build your go shared object, e.g. go build -buildmode=c-shared -o gox.so so.go. You might need to add libjx.so in your LD_LIBRARY_PATH. I suggest stackoverflow.com/questions/13428910/…
    – ssemilla
    Nov 13 '18 at 11:59










  • Please have a look at my edit above where I added the steps to reproduce the error on Linux with Java 11. I have set LD_LIBRARY_PATH to point at the folder with the shared objects. I have also tried with setting the Java option -Djava.library.path but with no luck. So I am still stuck :-(
    – Rox
    Nov 13 '18 at 15:01










  • This: /home/rox/gojni/target/libgojni.so is not = to this: /home/rox/jnijava/target/libjnijava.so.
    – ssemilla
    Nov 13 '18 at 15:59










  • Thanks! I was testing with some different projects on different platforms and copy-pasted from wrong project. :-) Got it working now though. It turned out that the LD_LIBRARY_PATH wasn´t set for the session I used.
    – Rox
    Nov 13 '18 at 16:44















1














JNI functions like GetStringUTFChars are function pointers and cannot be called directly from Go. You have to wrap the functions you need in a separate C file. e.g.



jx.c



#include <jni.h>

const char* jx_GetStringUTFChars(JNIEnv *env, jstring str, jboolean *isCopy)
return (*env)->GetStringUTFChars(env, str, isCopy);



After creating a library from the C file, your Go file will look something like this:



package main

/*
#cgo CFLAGS: -I/usr/java/jdk1.8.0_162/include/ -I/usr/java/jdk1.8.0_162/include/linux/
#cgo LDFLAGS: -L$SRCDIR/ -ljx

#include "jx.h"
*/
import "C"
import (
"fmt"
)

//export Java_com_mypackage_MyClass_print
func Java_com_mypackage_MyClass_print(env *C.JNIEnv, clazz C.jclass, str C.jstring)
s := C.jx_GetStringUTFChars(env, str, (*C.jboolean)(nil))
fmt.Println(C.GoString(s))


func main()


The reason why there is a separate C file just for the wrapper function is because of this clause in the documentation:




Using //export in a file places a restriction on the preamble: since it is copied into two different C output files, it must not contain any definitions, only declarations.







share|improve this answer




















  • Thanks! So the steps I need to to is first build a shared library of jx.c using gcc -shared -fPIC -I/.../libjx.so and then point to that shared library using LDFLAGS in the Go file? Correct? I have tried that and it compiles when I do go build... but when running my Java program that uses my JNI method, then I get Exception in thread "main" java.lang.UnsatisfiedLinkError: /home/rox/jnijava/target/libjnijava.so: libjx.so: cannot open shared object file: No such file or directory but both libjnijava.so (created by go build) and libjx.so (created by gcc -shared...) exist on that path.
    – Rox
    Nov 13 '18 at 8:26










  • Yes, build the C file first and then you can create a library using ar q libjx.a jx.c. Then build your go shared object, e.g. go build -buildmode=c-shared -o gox.so so.go. You might need to add libjx.so in your LD_LIBRARY_PATH. I suggest stackoverflow.com/questions/13428910/…
    – ssemilla
    Nov 13 '18 at 11:59










  • Please have a look at my edit above where I added the steps to reproduce the error on Linux with Java 11. I have set LD_LIBRARY_PATH to point at the folder with the shared objects. I have also tried with setting the Java option -Djava.library.path but with no luck. So I am still stuck :-(
    – Rox
    Nov 13 '18 at 15:01










  • This: /home/rox/gojni/target/libgojni.so is not = to this: /home/rox/jnijava/target/libjnijava.so.
    – ssemilla
    Nov 13 '18 at 15:59










  • Thanks! I was testing with some different projects on different platforms and copy-pasted from wrong project. :-) Got it working now though. It turned out that the LD_LIBRARY_PATH wasn´t set for the session I used.
    – Rox
    Nov 13 '18 at 16:44













1












1








1






JNI functions like GetStringUTFChars are function pointers and cannot be called directly from Go. You have to wrap the functions you need in a separate C file. e.g.



jx.c



#include <jni.h>

const char* jx_GetStringUTFChars(JNIEnv *env, jstring str, jboolean *isCopy)
return (*env)->GetStringUTFChars(env, str, isCopy);



After creating a library from the C file, your Go file will look something like this:



package main

/*
#cgo CFLAGS: -I/usr/java/jdk1.8.0_162/include/ -I/usr/java/jdk1.8.0_162/include/linux/
#cgo LDFLAGS: -L$SRCDIR/ -ljx

#include "jx.h"
*/
import "C"
import (
"fmt"
)

//export Java_com_mypackage_MyClass_print
func Java_com_mypackage_MyClass_print(env *C.JNIEnv, clazz C.jclass, str C.jstring)
s := C.jx_GetStringUTFChars(env, str, (*C.jboolean)(nil))
fmt.Println(C.GoString(s))


func main()


The reason why there is a separate C file just for the wrapper function is because of this clause in the documentation:




Using //export in a file places a restriction on the preamble: since it is copied into two different C output files, it must not contain any definitions, only declarations.







share|improve this answer












JNI functions like GetStringUTFChars are function pointers and cannot be called directly from Go. You have to wrap the functions you need in a separate C file. e.g.



jx.c



#include <jni.h>

const char* jx_GetStringUTFChars(JNIEnv *env, jstring str, jboolean *isCopy)
return (*env)->GetStringUTFChars(env, str, isCopy);



After creating a library from the C file, your Go file will look something like this:



package main

/*
#cgo CFLAGS: -I/usr/java/jdk1.8.0_162/include/ -I/usr/java/jdk1.8.0_162/include/linux/
#cgo LDFLAGS: -L$SRCDIR/ -ljx

#include "jx.h"
*/
import "C"
import (
"fmt"
)

//export Java_com_mypackage_MyClass_print
func Java_com_mypackage_MyClass_print(env *C.JNIEnv, clazz C.jclass, str C.jstring)
s := C.jx_GetStringUTFChars(env, str, (*C.jboolean)(nil))
fmt.Println(C.GoString(s))


func main()


The reason why there is a separate C file just for the wrapper function is because of this clause in the documentation:




Using //export in a file places a restriction on the preamble: since it is copied into two different C output files, it must not contain any definitions, only declarations.








share|improve this answer












share|improve this answer



share|improve this answer










answered Nov 12 '18 at 15:31









ssemilla

3,077424




3,077424











  • Thanks! So the steps I need to to is first build a shared library of jx.c using gcc -shared -fPIC -I/.../libjx.so and then point to that shared library using LDFLAGS in the Go file? Correct? I have tried that and it compiles when I do go build... but when running my Java program that uses my JNI method, then I get Exception in thread "main" java.lang.UnsatisfiedLinkError: /home/rox/jnijava/target/libjnijava.so: libjx.so: cannot open shared object file: No such file or directory but both libjnijava.so (created by go build) and libjx.so (created by gcc -shared...) exist on that path.
    – Rox
    Nov 13 '18 at 8:26










  • Yes, build the C file first and then you can create a library using ar q libjx.a jx.c. Then build your go shared object, e.g. go build -buildmode=c-shared -o gox.so so.go. You might need to add libjx.so in your LD_LIBRARY_PATH. I suggest stackoverflow.com/questions/13428910/…
    – ssemilla
    Nov 13 '18 at 11:59










  • Please have a look at my edit above where I added the steps to reproduce the error on Linux with Java 11. I have set LD_LIBRARY_PATH to point at the folder with the shared objects. I have also tried with setting the Java option -Djava.library.path but with no luck. So I am still stuck :-(
    – Rox
    Nov 13 '18 at 15:01










  • This: /home/rox/gojni/target/libgojni.so is not = to this: /home/rox/jnijava/target/libjnijava.so.
    – ssemilla
    Nov 13 '18 at 15:59










  • Thanks! I was testing with some different projects on different platforms and copy-pasted from wrong project. :-) Got it working now though. It turned out that the LD_LIBRARY_PATH wasn´t set for the session I used.
    – Rox
    Nov 13 '18 at 16:44
















  • Thanks! So the steps I need to to is first build a shared library of jx.c using gcc -shared -fPIC -I/.../libjx.so and then point to that shared library using LDFLAGS in the Go file? Correct? I have tried that and it compiles when I do go build... but when running my Java program that uses my JNI method, then I get Exception in thread "main" java.lang.UnsatisfiedLinkError: /home/rox/jnijava/target/libjnijava.so: libjx.so: cannot open shared object file: No such file or directory but both libjnijava.so (created by go build) and libjx.so (created by gcc -shared...) exist on that path.
    – Rox
    Nov 13 '18 at 8:26










  • Yes, build the C file first and then you can create a library using ar q libjx.a jx.c. Then build your go shared object, e.g. go build -buildmode=c-shared -o gox.so so.go. You might need to add libjx.so in your LD_LIBRARY_PATH. I suggest stackoverflow.com/questions/13428910/…
    – ssemilla
    Nov 13 '18 at 11:59










  • Please have a look at my edit above where I added the steps to reproduce the error on Linux with Java 11. I have set LD_LIBRARY_PATH to point at the folder with the shared objects. I have also tried with setting the Java option -Djava.library.path but with no luck. So I am still stuck :-(
    – Rox
    Nov 13 '18 at 15:01










  • This: /home/rox/gojni/target/libgojni.so is not = to this: /home/rox/jnijava/target/libjnijava.so.
    – ssemilla
    Nov 13 '18 at 15:59










  • Thanks! I was testing with some different projects on different platforms and copy-pasted from wrong project. :-) Got it working now though. It turned out that the LD_LIBRARY_PATH wasn´t set for the session I used.
    – Rox
    Nov 13 '18 at 16:44















Thanks! So the steps I need to to is first build a shared library of jx.c using gcc -shared -fPIC -I/.../libjx.so and then point to that shared library using LDFLAGS in the Go file? Correct? I have tried that and it compiles when I do go build... but when running my Java program that uses my JNI method, then I get Exception in thread "main" java.lang.UnsatisfiedLinkError: /home/rox/jnijava/target/libjnijava.so: libjx.so: cannot open shared object file: No such file or directory but both libjnijava.so (created by go build) and libjx.so (created by gcc -shared...) exist on that path.
– Rox
Nov 13 '18 at 8:26




Thanks! So the steps I need to to is first build a shared library of jx.c using gcc -shared -fPIC -I/.../libjx.so and then point to that shared library using LDFLAGS in the Go file? Correct? I have tried that and it compiles when I do go build... but when running my Java program that uses my JNI method, then I get Exception in thread "main" java.lang.UnsatisfiedLinkError: /home/rox/jnijava/target/libjnijava.so: libjx.so: cannot open shared object file: No such file or directory but both libjnijava.so (created by go build) and libjx.so (created by gcc -shared...) exist on that path.
– Rox
Nov 13 '18 at 8:26












Yes, build the C file first and then you can create a library using ar q libjx.a jx.c. Then build your go shared object, e.g. go build -buildmode=c-shared -o gox.so so.go. You might need to add libjx.so in your LD_LIBRARY_PATH. I suggest stackoverflow.com/questions/13428910/…
– ssemilla
Nov 13 '18 at 11:59




Yes, build the C file first and then you can create a library using ar q libjx.a jx.c. Then build your go shared object, e.g. go build -buildmode=c-shared -o gox.so so.go. You might need to add libjx.so in your LD_LIBRARY_PATH. I suggest stackoverflow.com/questions/13428910/…
– ssemilla
Nov 13 '18 at 11:59












Please have a look at my edit above where I added the steps to reproduce the error on Linux with Java 11. I have set LD_LIBRARY_PATH to point at the folder with the shared objects. I have also tried with setting the Java option -Djava.library.path but with no luck. So I am still stuck :-(
– Rox
Nov 13 '18 at 15:01




Please have a look at my edit above where I added the steps to reproduce the error on Linux with Java 11. I have set LD_LIBRARY_PATH to point at the folder with the shared objects. I have also tried with setting the Java option -Djava.library.path but with no luck. So I am still stuck :-(
– Rox
Nov 13 '18 at 15:01












This: /home/rox/gojni/target/libgojni.so is not = to this: /home/rox/jnijava/target/libjnijava.so.
– ssemilla
Nov 13 '18 at 15:59




This: /home/rox/gojni/target/libgojni.so is not = to this: /home/rox/jnijava/target/libjnijava.so.
– ssemilla
Nov 13 '18 at 15:59












Thanks! I was testing with some different projects on different platforms and copy-pasted from wrong project. :-) Got it working now though. It turned out that the LD_LIBRARY_PATH wasn´t set for the session I used.
– Rox
Nov 13 '18 at 16:44




Thanks! I was testing with some different projects on different platforms and copy-pasted from wrong project. :-) Got it working now though. It turned out that the LD_LIBRARY_PATH wasn´t set for the session I used.
– Rox
Nov 13 '18 at 16:44

















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