在Windows 7中编译JNI [英] Compile for JNI in windows 7

问题描述

我想编译一个名为 jbliss 的开源项目， a>作为一个DLL在Windows 7下，所以我可以使用它与JNI在Java。一切都在Linux中使用已经提供的包中的makefile工作得很好。

I am trying to compile an open source project called jbliss as a DLL under windows 7, so that I can use it with JNI in Java. Everything works fine in Linux using the makefile already provided in the package.

我的第一个搜索指向cygwin，然后我遵循了几个建议，如这一个，这基本上告诉我使用：

My first search pointed me to cygwin, and then I followed several suggestions, like this one, which basically tells me to use:

gcc-3 -D __int64="long long" -mno-cygwin -Wl,--add-stdcall-alias 
  -I"<JAVA_HOME>\include" -I"<JAVA_HOME>\include\win32" -shared -o jbliss.dll *.cc

这使我主要遇到以下错误：

This brings me mainly to the following error:

bliss-0.50/timer.cc:2:23: sys/times.h: No such file or directory

，并找到此帖，这表明使用 -I / usr / include / 。但是这将导致比解决更多的错误：

I googled this error, and found this post, which suggests to use -I /usr/include/. But that will cause more errors than it solves:

In file included from /usr/lib/gcc/i686-pc-mingw32/3.4.4/include/c++/bits/stl_algobase.h:67,
                 from /usr/lib/gcc/i686-pc-mingw32/3.4.4/include/c++/bits/stl_tree.h:66,
                 from /usr/lib/gcc/i686-pc-mingw32/3.4.4/include/c++/set:66,
                 from bliss-0.50/graph.cc:4:
/usr/lib/gcc/i686-pc-mingw32/3.4.4/include/c++/cstdlib:181: error: `::strtold' has not been declared
/usr/lib/gcc/i686-pc-mingw32/3.4.4/include/c++/cstdlib:200: error: `__gnu_cxx::strtold' has not been declared

所以我坐在现在困惑，希望得到一个答案，gcc的选择使用它正确。
我刚刚下载了cygwin，我会说我有最新的版本。

So I am sitting now puzzled and hoping for an answer, which options of gcc to use to get it right. I have just downloaded cygwin and I would say I have the lastest version.

提前感谢。

额外的本地信息：

$ which gcc
/usr/bin/gcc

$ echo $PATH
/usr/local/bin:/usr/bin:/cygdrive/c/WATCOM/BINNT:/cygdrive/c/WATCOM/BINW:/cygdrive/c/Windows/system32:/cygdrive/c/Windows:/cygdrive/c/Windows/System32/Wbem:/cygdrive/c/Windows/System32/WindowsPowerShell/v1.0:/cygdrive/c/Program Files (x86)/QuickTime Alternative/QTSystem:/cygdrive/c/Program Files/TortoiseSVN/bin:/cygdrive/c/Program Files/MATLAB/R2011b/runtime/win64:/cygdrive/c/Program Files/MATLAB/R2011b/bin:/cygdrive/c/Program Files (x86)/OpenSSH/bin:/cygdrive/c/Program Files/MiKTeX 2.9/miktex/bin/x64:/cygdrive/c/Program Files (x86)/Graphviz 2.28/bin

推荐答案

Googling进一步向我展示了sys / times.h不是（并且显然不应该是）在mingw可用。 sys / times.h下的include文件被认为是平台相关的，因此在windows上不支持。

Googling further shows me the fact that indeed sys/times.h is not (and apparently is not supposed to be) available on mingw. The include files under sys/times.h are said to be platform dependent and therefore not supported on windows.

解决方案是尽可能地删除对sys / times.h（或任何平台相关库）的任何调用。删除这些包含文件（当然向编译器添加适当的选项）可以成功构建。

The solution is to remove any call to sys/times.h (or any platform dependent library) as far as possible. Removing these include files (and of course adding proper options to the compiler) leads to a successful build.

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