Java JNI和Cygwin

Question

我尝试编写一个简单的Java JNI代码，如HelloWorld。我试图按照一个例子，但我认为这太旧了，命令已过时。我已经重新安装了Cygwin，我尝试了minGW。寄托都不错，但我如果我要建立的.dll文件，每次收到此错误：

"/usr/bin/make" -f nbproject/Makefile-Debug.mk QMAKE= SUBPROJECTS= .build-conf 
make[1]: Entering directory '/cygdrive/c/Users/Tobias/Documents/NetBeansProjects/HelloWorldNative' 
"/usr/bin/make" -f nbproject/Makefile-Debug.mk dist/HelloWorldNative.dll 
make[2]: Entering directory '/cygdrive/c/Users/Tobias/Documents/NetBeansProjects/HelloWorldNative' 
mkdir -p build/Debug/Cygwin_4.x-Windows 
rm -f "build/Debug/Cygwin_4.x-Windows/HelloWorld.o.d" 
gcc -Wl,--add-stdcall-alias -shared -m32 -c -g -I../../../../../Programme/Java/jdk1.8.0_60/include -I../../../../../Programme/Java/jdk1.8.0_60/include/win32 -MMD -MP -MF "build/Debug/Cygwin_4.x-Windows/HelloWorld.o.d" -o build/Debug/Cygwin_4.x-Windows/HelloWorld.o HelloWorld.c 
mkdir -p dist 
gcc -Wl,--add-stdcall-alias -shared -m32 -o dist/HelloWorldNative.dll build/Debug/Cygwin_4.x-Windows/HelloWorld.o -shared 
/usr/lib/gcc/x86_64-pc-cygwin/4.9.3/../../../../x86_64-pc-cygwin/bin/ld: skipping incompatible /usr/lib/gcc/x86_64-pc-cygwin/4.9.3//libgcc_s.dll.a when searching for -lgcc_s 
/usr/lib/gcc/x86_64-pc-cygwin/4.9.3/../../../../x86_64-pc-cygwin/bin/ld: skipping incompatible /usr/lib/gcc/x86_64-pc-cygwin/4.9.3/libgcc_s.dll.a when searching for -lgcc_s 
/usr/lib/gcc/x86_64-pc-cygwin/4.9.3/../../../../x86_64-pc-cygwin/bin/ld: skipping incompatible /usr/lib/gcc/x86_64-pc-cygwin/4.9.3//libgcc_s.dll.a when searching for -lgcc_s 
/usr/lib/gcc/x86_64-pc-cygwin/4.9.3/../../../../x86_64-pc-cygwin/bin/ld: skipping incompatible /usr/lib/gcc/x86_64-pc-cygwin/4.9.3/libgcc_s.dll.a when searching for -lgcc_s 
/usr/lib/gcc/x86_64-pc-cygwin/4.9.3/../../../../x86_64-pc-cygwin/bin/ld: cannot find -lgcc_s 
/usr/lib/gcc/x86_64-pc-cygwin/4.9.3/../../../../x86_64-pc-cygwin/bin/ld: skipping incompatible /usr/lib/gcc/x86_64-pc-cygwin/4.9.3//libgcc.a when searching for -lgcc 
/usr/lib/gcc/x86_64-pc-cygwin/4.9.3/../../../../x86_64-pc-cygwin/bin/ld: skipping incompatible /usr/lib/gcc/x86_64-pc-cygwin/4.9.3//libgcc.a when searching for -lgcc 
/usr/lib/gcc/x86_64-pc-cygwin/4.9.3/../../../../x86_64-pc-cygwin/bin/ld: skipping incompatible /usr/lib/gcc/x86_64-pc-cygwin/4.9.3/libgcc.a when searching for -lgcc 
/usr/lib/gcc/x86_64-pc-cygwin/4.9.3/../../../../x86_64-pc-cygwin/bin/ld: skipping incompatible /usr/lib/gcc/x86_64-pc-cygwin/4.9.3/libgcc.a when searching for -lgcc 
/usr/lib/gcc/x86_64-pc-cygwin/4.9.3/../../../../x86_64-pc-cygwin/bin/ld: skipping incompatible /usr/lib/gcc/x86_64-pc-cygwin/4.9.3//libgcc.a when searching for -lgcc 
/usr/lib/gcc/x86_64-pc-cygwin/4.9.3/../../../../x86_64-pc-cygwin/bin/ld: skipping incompatible /usr/lib/gcc/x86_64-pc-cygwin/4.9.3/libgcc.a when searching for -lgcc 
/usr/lib/gcc/x86_64-pc-cygwin/4.9.3/../../../../x86_64-pc-cygwin/bin/ld: cannot find -lgcc 
/usr/lib/gcc/x86_64-pc-cygwin/4.9.3/../../../../x86_64-pc-cygwin/bin/ld: skipping incompatible /usr/lib/gcc/x86_64-pc-cygwin/4.9.3/../../../libcygwin.a when searching for -lcygwin 
/usr/lib/gcc/x86_64-pc-cygwin/4.9.3/../../../../x86_64-pc-cygwin/bin/ld: skipping incompatible /usr/lib/gcc/x86_64-pc-cygwin/4.9.3/../../../libcygwin.a when searching for -lcygwin 
/usr/lib/gcc/x86_64-pc-cygwin/4.9.3/../../../../x86_64-pc-cygwin/bin/ld: skipping incompatible /usr/lib/gcc/x86_64-pc-cygwin/4.9.3/../../../libcygwin.a when searching for -lcygwin 
/usr/lib/gcc/x86_64-pc-cygwin/4.9.3/../../../../x86_64-pc-cygwin/bin/ld: cannot find -lcygwin 
/usr/lib/gcc/x86_64-pc-cygwin/4.9.3/../../../../x86_64-pc-cygwin/bin/ld: cannot find -ladvapi32 
/usr/lib/gcc/x86_64-pc-cygwin/4.9.3/../../../../x86_64-pc-cygwin/bin/ld: cannot find -lshell32 
/usr/lib/gcc/x86_64-pc-cygwin/4.9.3/../../../../x86_64-pc-cygwin/bin/ld: cannot find -luser32 
/usr/lib/gcc/x86_64-pc-cygwin/4.9.3/../../../../x86_64-pc-cygwin/bin/ld: cannot find -lkernel32 
/usr/lib/gcc/x86_64-pc-cygwin/4.9.3/../../../../x86_64-pc-cygwin/bin/ld: skipping incompatible /usr/lib/gcc/x86_64-pc-cygwin/4.9.3//libgcc_s.dll.a when searching for -lgcc_s 
/usr/lib/gcc/x86_64-pc-cygwin/4.9.3/../../../../x86_64-pc-cygwin/bin/ld: skipping incompatible /usr/lib/gcc/x86_64-pc-cygwin/4.9.3/libgcc_s.dll.a when searching for -lgcc_s 
/usr/lib/gcc/x86_64-pc-cygwin/4.9.3/../../../../x86_64-pc-cygwin/bin/ld: skipping incompatible /usr/lib/gcc/x86_64-pc-cygwin/4.9.3//libgcc_s.dll.a when searching for -lgcc_s 
/usr/lib/gcc/x86_64-pc-cygwin/4.9.3/../../../../x86_64-pc-cygwin/bin/ld: skipping incompatible /usr/lib/gcc/x86_64-pc-cygwin/4.9.3/libgcc_s.dll.a when searching for -lgcc_s 
/usr/lib/gcc/x86_64-pc-cygwin/4.9.3/../../../../x86_64-pc-cygwin/bin/ld: cannot find -lgcc_s 
/usr/lib/gcc/x86_64-pc-cygwin/4.9.3/../../../../x86_64-pc-cygwin/bin/ld: skipping incompatible /usr/lib/gcc/x86_64-pc-cygwin/4.9.3//libgcc.a when searching for -lgcc 
/usr/lib/gcc/x86_64-pc-cygwin/4.9.3/../../../../x86_64-pc-cygwin/bin/ld: skipping incompatible /usr/lib/gcc/x86_64-pc-cygwin/4.9.3//libgcc.a when searching for -lgcc 
/usr/lib/gcc/x86_64-pc-cygwin/4.9.3/../../../../x86_64-pc-cygwin/bin/ld: skipping incompatible /usr/lib/gcc/x86_64-pc-cygwin/4.9.3/libgcc.a when searching for -lgcc 
/usr/lib/gcc/x86_64-pc-cygwin/4.9.3/../../../../x86_64-pc-cygwin/bin/ld: skipping incompatible /usr/lib/gcc/x86_64-pc-cygwin/4.9.3/libgcc.a when searching for -lgcc 
/usr/lib/gcc/x86_64-pc-cygwin/4.9.3/../../../../x86_64-pc-cygwin/bin/ld: skipping incompatible /usr/lib/gcc/x86_64-pc-cygwin/4.9.3//libgcc.a when searching for -lgcc 
/usr/lib/gcc/x86_64-pc-cygwin/4.9.3/../../../../x86_64-pc-cygwin/bin/ld: skipping incompatible /usr/lib/gcc/x86_64-pc-cygwin/4.9.3/libgcc.a when searching for -lgcc 
/usr/lib/gcc/x86_64-pc-cygwin/4.9.3/../../../../x86_64-pc-cygwin/bin/ld: cannot find -lgcc 
collect2: error: ld returned 1 exit status 
nbproject/Makefile-Debug.mk:62: recipe for target 'dist/HelloWorldNative.dll' failed 
make[2]: *** [dist/HelloWorldNative.dll] Error 1 
make[2]: Leaving directory '/cygdrive/c/Users/Tobias/Documents/NetBeansProjects/HelloWorldNative' 
nbproject/Makefile-Debug.mk:59: recipe for target '.build-conf' failed 
make[1]: *** [.build-conf] Error 2 
make[1]: Leaving directory '/cygdrive/c/Users/Tobias/Documents/NetBeansProjects/HelloWorldNative' 
nbproject/Makefile-impl.mk:39: recipe for target '.build-impl' failed 
make: *** [.build-impl] Error 2 

BUILD FAILED (exit value 2, total time: 4s) 

最好的问候，

T.郑

Answer 1

是不是因为你正在尝试编译32位程序，但没有安装32位库？您可能需要安装32位版本的cygwin。见Compiling a c program on a 64 bit machine with a 32 bit binary