The following issue has been SUBMITTED.
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http://www.cmake.org/Bug/view.php?id=13942
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Reported By: Carlton Henderson
Assigned To:
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Project: CMake
Issue ID: 13942
Category: CCMake
Reproducibility: always
Severity: major
Priority: normal
Status: new
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Date Submitted: 2013-02-21 17:50 EST
Last Modified: 2013-02-21 17:50 EST
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Summary: FindJNI.cmake will not respect JAVA_HOME when
setting JAVA_INCLUDE_PATH if jni.h exists in CMAKE_SYSTEM_PREFIX_PATH
Description:
I have multiple JDKs installed on my machine. Also, I have gcc and its java
support installed. So, to instruct CMake which java to use, I set the
environment variable JAVA_HOME=/opt/java6 before running cmake. CMake set most
of the java-related variables correctly except JAVA_INCLUDE_PATH which it set to
/usr/local/include.
Steps to Reproduce:
- touch /usr/local/include/jni.h # or install libgcj using the SMCgcc package
from sunfreeware
- install java6 in /opt/java6
- JAVA_HOME=/opt/java6
- export JAVA_HOME
- construct a CMakeLists.txt file which uses
- cmake /path/to/sources
- grep JAVA_INCLUDE_PATH: CMakeCache.txt
=>actual> JAVA_INCLUDE_PATH:PATH=/usr/local/include
=>expected> JAVA_INCLUDE_PATH:PATH=/opt/java6/include
- We didn't notice it until we went to make something that builds against jni.h
=> "/usr/local/include/jni.h", line 81: Error: #error jni.h not ported to this
platform.
- The above error happens because the c++ compiler finds
/usr/local/include/jni.h instead of /opt/java6/include/jni.h
Additional Information:
A minimalist fix might be to just add HINTS right after
"find_path(JAVA_INCLUDE_PATH jni.h" in FindJNI.cmake. That is, add HINTS right
before ${JAVA_AWT_INCLUDE_DIRECTORIES} so these directories are searched before
each path in CMAKE_SYSTEM_PREFIX_PATH.
However, CMake users such as myself would love to see FindJNI.cmake test the
variables to make sure that all the JAVA and JNI-related variables point to the
same JVM (like how CMake smartly checks to make sure the C compiler works).
Thanks,
-Carl
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Issue History
Date Modified Username Field Change
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2013-02-21 17:50 Carlton HendersonNew Issue
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