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 18 Apr 2012, Exaos Lee, Bug Report, Build error with mlogger: invalid conversion from ‘void*’ to ‘gzFile’ 
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 19 Apr 2012, Stefan Ritt, Bug Report, Build error with mlogger: invalid conversion from ‘void*’ to ‘gzFile’
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25 Apr 2012, Konstantin Olchanski, Bug Report, Build error with mlogger: invalid conversion from ‘void*’ to ‘gzFile’
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27 Apr 2012, Stefan Ritt, Bug Report, Build error with mlogger: invalid conversion from ‘void*’ to ‘gzFile’
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Message ID: 786
Entry time: 18 Apr 2012
Reply to this: 787
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| Author: |
Exaos Lee |
| Topic: |
Bug Report |
| Subject: |
Build error with mlogger: invalid conversion from ‘void*’ to ‘gzFile’ |
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I tried to build MIDAS under ArchLinux, failed on errors as following:src/mlogger.cxx: In function ‘INT midas_flush_buffer(LOG_CHN*)’:
src/mlogger.cxx:1011:54: error: invalid conversion from ‘void*’ to ‘gzFile’ [-fpermissive]
In file included from src/mlogger.cxx:33:0:
/usr/include/zlib.h:1318:21: error: initializing argument 1 of ‘int gzwrite(gzFile, voidpc, unsigned int)’ [-fpermissive]
src/mlogger.cxx: In function ‘INT midas_log_open(LOG_CHN*, INT)’:
src/mlogger.cxx:1200:79: error: invalid conversion from ‘void*’ to ‘gzFile’ [-fpermissive]
In file included from src/mlogger.cxx:33:0: Please refer to attachment elog:786/1 for detail. There are also many warnings listed.
This error can be supressed by adding -fpermissive to CXXFLAGS. But the error message is correct."gzFile" is not equal to "void *"! C allows implicit casts between void* and any pointer type, C++ doesn't allow that. It's better to fix this error. A quick fix would be adding explicit casts. But I'm not sure what is the proper way to fix this. |
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