java - R CMD javareconf ➜ fatal error : 'jni.h' file not found

Question

我正在尝试使用 Java 配置 R，在运行 sudo R CMD javareconf 后我得到了这个。

sudo R CMD javareconf                                                                  12:16:29  23.11.17
Java interpreter : /usr/bin/java
Java version     : 9.0.1
Java home path   : /Library/Java/JavaVirtualMachines/jdk-9.0.1.jdk/Contents/Home
Java compiler    : /usr/bin/javac
Java headers gen.: /usr/bin/javah
Java archive tool: /usr/bin/jar
System Java on macOS

trying to compile and link a JNI program
detected JNI cpp flags    : -I/System/Library/Frameworks/JavaVM.framework/Headers
detected JNI linker flags : -framework JavaVM
clang -I/usr/local/Cellar/r/3.4.2/lib/R/include -DNDEBUG -I/System/Library/Frameworks/JavaVM.framework/Headers  -I/usr/local/opt/gettext/include -I/usr/local/opt/readline/include -I/usr/local/include   -fPIC  -g -O2  -c conftest.c -o conftest.o
conftest.c:1:10: fatal error: 'jni.h' file not found
#include <jni.h>
         ^~~~~~~
1 error generated.
make: *** [conftest.o] Error 1
Unable to compile a JNI program


JAVA_HOME        : /Library/Java/JavaVirtualMachines/jdk-9.0.1.jdk/Contents/Home
Java library path:
JNI cpp flags    :
JNI linker flags :
Updating Java configuration in /usr/local/Cellar/r/3.4.2/lib/R
Done.

我担心 fatal error :找不到“jni.h”文件。

因此我可以安装 rJava。

有什么想法吗？谢谢!

Answer 1

好的!

似乎我解决了用 java 重新安装 R 的问题

brew reinstall R --with-openblas --with-java 然后我运行 sudo R CMD javareconf\JAVA_CPPFLAGS='-I/System/Library/Frameworks/JavaVM.framework/标题-I/Library/Java/JavaVirtualMachines/jdk-9.0.1.jdk/

输出如下:

/usr/local/Cellar/r/3.4.2/lib/R/bin/javareconf: line 66: -I/Library/Java/JavaVirtualMachines/jdk-9.0.1.jdk/: No such file or directory
Java interpreter : /Library/Java/JavaVirtualMachines/jdk-9.0.1.jdk/Contents/Home/bin/java
Java version     : 9.0.1
Java home path   : /Library/Java/JavaVirtualMachines/jdk-9.0.1.jdk/Contents/Home
Java compiler    : /Library/Java/JavaVirtualMachines/jdk-9.0.1.jdk/Contents/Home/bin/javac
Java headers gen.: /Library/Java/JavaVirtualMachines/jdk-9.0.1.jdk/Contents/Home/bin/javah
Java archive tool: /Library/Java/JavaVirtualMachines/jdk-9.0.1.jdk/Contents/Home/bin/jar
System Java on macOS

trying to compile and link a JNI program
detected JNI cpp flags    : -I/System/Library/Frameworks/JavaVM.framework/Headers
detected JNI linker flags : -framework JavaVM
clang -I/usr/local/Cellar/r/3.4.2/lib/R/include -DNDEBUG -I/System/Library/Frameworks/JavaVM.framework/Headers  -I/usr/local/opt/gettext/include -I/usr/local/opt/readline/include -I/usr/local/include   -fPIC  -I/Library/Java/JavaVirtualMachines/jdk-9.0.1.jdk/Contents/Home/include -I/Library/Java/JavaVirtualMachines/jdk-9.0.1.jdk/Contents/Home/include/darwin  -c conftest.c -o conftest.o
clang -dynamiclib -Wl,-headerpad_max_install_names -undefined dynamic_lookup -single_module -multiply_defined suppress -L/usr/local/Cellar/r/3.4.2/lib/R/lib -L/usr/local/opt/openblas/lib -L/usr/local/opt/gettext/lib -L/usr/local/opt/readline/lib -L/usr/local/lib -o conftest.so conftest.o -framework JavaVM -L/usr/local/Cellar/r/3.4.2/lib/R/lib -lR -lintl -Wl,-framework -Wl,CoreFoundation


JAVA_HOME        : /Library/Java/JavaVirtualMachines/jdk-9.0.1.jdk/Contents/Home
Java library path:
JNI cpp flags    : -I/System/Library/Frameworks/JavaVM.framework/Headers
JNI linker flags : -framework JavaVM
Updating Java configuration in /usr/local/Cellar/r/3.4.2/lib/R
Done.

我将 JAVA_HOME 设置为:

export JAVA_HOME="$(/usr/libexec/java_home)" 

这是正确的吗？或者最好不要定义 JAVA_HOME？