Question

我想在ubuntu 11.10服务器上编译Gosmore。

我的源代码来自：

http://svn.openstreetmap.org/applications/rendering/gosmore/

当我尝试命令“make”命令时，我收到如下错误：

gcc -lm density.c -o density
/tmp/ccNQSatu.o: In function `main':
density.c:(.text+0x21f): undefined reference to `exp'
density.c:(.text+0x224): undefined reference to `atan'
density.c:(.text+0x2c3): undefined reference to `exp'
density.c:(.text+0x2c8): undefined reference to `atan'
density.c:(.text+0x5d3): undefined reference to `exp'
density.c:(.text+0x5d8): undefined reference to `atan'
density.c:(.text+0x67a): undefined reference to `exp'
density.c:(.text+0x67f): undefined reference to `atan'
density.c:(.text+0x723): undefined reference to `exp'
density.c:(.text+0x728): undefined reference to `atan'
density.c:(.text+0x793): undefined reference to `exp'
density.c:(.text+0x798): undefined reference to `atan'
collect2: ld returned 1 exit status
make: *** [jni/bboxes.c] Error 1

如何解决这个问题？

Answer 1

exp，atan，这些是在数学库中，它被称为libm.a，你用-lm链接到它，你做了但是顺序错误：gcc -lm density.c -o density是错误的，gcc density.c -lm -o密度是正确的。

我能够使用最新版本的gosmore重现您的问题，这是我的github副本中的补丁。

https://github.com/h4ck3rm1k3/gosmore/commit/67bd8e2dd7e76de47a31b3c3df1ab33b8fda797b

不要忘记积极的反馈！谢谢麦克

Gosmore在ubuntu 11.10上编译错误

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