Differences

This shows you the differences between two versions of the page.

--- linux:legomindstorms [2014/01/07 23:14] – [Second Attempt: LEJOS] rlunaro
+++ linux:legomindstorms [2022/12/02 22:02] (current) – external edit 127.0.0.1
@@ Line 189: / Line 189: @@
 $ sudo apt-get install ant
 </code>
+And should have ''libusb-dev'' installed also.
+<code shell>
+sudo apt-get install libusb-dev
+</code>
+After doing that, make sure that the usb.h file is available in your destination system.
 ==== Hands on ====
@@ Line 210: / Line 219: @@
 Then go to the ''build'' directory and run ''ant''. This is for construct the USB support for java.
-<WRAP center round important 60%>
+In my case, this command failed. The problem was in the ''build.xml'' file located in NXJ_HOME/build/libnxt. I've reconstructed the compiler command:
-In my case, this command failed. The problem was in the ''build.xml'' file located in NXJ_HOME/build/libnxt.
-</WRAP>
+<code shell>
+gcc -Wall -std=gnu99 -fPIC main_jlibnxt.c
+</code>
+And it fails with this error:
+<code>
+main_jlibnxt.c:28:17: fatal error: usb.h: No such file or directory
+</code>
+**Solution:**
+    - Locate the usb.h file in your filesystem: ''find / -iname usb.h 2>/dev/null'': in my system this appears in ''/usr/include/usb.h''
+I've fixed the solution executing the ''make'' command and then:
+<code shell>
+$ cd NXJ_HOME/build
+$ ant
+</code>