error: conflicting declaration ‘typedef struct LZ4_stream_t LZ4_stream_t’

解决LZ4编译冲突问题

原创已于 2024-02-22 17:39:24 修改 · 5.5k 阅读

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于 2021-08-05 15:32:57 首次发布

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这篇博客主要介绍了在编译过程中遇到的LZ4头文件冲突问题，以及如何通过备份并创建符号链接来解决这个问题。解决方案包括使用`mv`命令备份冲突的flann/ext/lz4.h和lz4hc.h文件，然后用`ln -s`命令创建指向/usr/include/lz4.h和lz4hc.h的符号链接。

问题描述：

/usr/include/lz4.h:196:57: error: conflicting declaration ‘typedef struct LZ4_stream_t LZ4_stream_t’
typedef struct { long long table[LZ4_STREAMSIZE_U64]; } LZ4_stream_t;

/usr/include/lz4.h:249:72: error: conflicting declaration ‘typedef struct LZ4_streamDecode_t LZ4_streamDecode_t’
typedef struct { unsigned long long table[LZ4_STREAMDECODESIZE_U64]; } LZ4_streamDecode_t;

解决方案：

sudo mv /usr/include/flann/ext/lz4.h /usr/include/flann/ext/lz4.h.bak
sudo mv /usr/include/flann/ext/lz4hc.h /usr/include/flann/ext/lz4hc.h.bak
 
sudo ln -s /usr/include/lz4.h /usr/include/flann/ext/lz4.h
sudo ln -s /usr/include/lz4hc.h /usr/include/flann/ext/lz4hc.h