0000530: OMNeT++ does not compile with -ansi flag

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Date Submitted

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0000530

OMNeT++

Installer / Productizing

public

2012-01-25 10:03

2017-02-01 17:19

Reporter

michael

Assigned To

andras

Priority

normal

Severity

minor

Reproducibility

always

Status

resolved

Resolution

won't fix

Platform

OS Version

Product Version

4.2.1

Target Version

Fixed in Version

5.1pre3

Summary

0000530: OMNeT++ does not compile with -ansi flag

Description

Hi,

if I define the -ansi flag for CFLAGS_DEBUG/CFLAGS_RELEASE in configure user than the OMNeT++ make fails:

g++ -c -O2 -DNDEBUG=1 -ansi -fno-stack-protector -ftree-vectorize -finline-funct
ions -march=native -mfpmath=sse -fsee -mtune=native -I/usr/include -fno-stack-
protector -DXMLPARSER=libxml -DWITH_PARSIM -DWITH_NETBUILDER -I. -Id:/Tools/omne
tpp-4.2.1/include/platdep -o d:/Tools/omnetpp-4.2.1/out/gcc-release/src/common/f
ilereader.o filereader.cc
filereader.cc: In member function 'int FileReader::readFileEnd(void*)':
filereader.cc:93:5: error: '_fileno' was not declared in this scope
filereader.cc: In member function 'void FileReader::fillBuffer(bool)':
filereader.cc:240:9: error: '_fileno' was not declared in this scope
filereader.cc: In member function 'bool FileReader::isLineStart(char*)':
filereader.cc:285:12: error: '_fileno' was not declared in this scope
filereader.cc: In function 'const char* strnistr(const char*, const char*, int,
bool)':
filereader.cc:532:95: error: 'strncasecmp' was not declared in this scope
filereader.cc: In member function 'int64_t FileReader::getFileSizeInternal()':
filereader.cc:574:26: error: 'fileno' was not declared in this scope
make[2]: *** [d:/Tools/omnetpp-4.2.1/out/gcc-release/src/common/filereader.o] Error 1
make[2]: Leaving directory `/d/Tools/omnetpp-4.2.1/src/common'

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Notes
(0001304) andras (administrator) 2017-02-01 17:19	According to the GCC manual, "[-ansi] is equivalent to -std=c++98". Since 5.1, OMNeT++ requires C++11. When compiling with -ansi, we indeed get a lot of errors due to unrecognized C++11 constructs such as local type inference using "auto". Thus, looks like -ansi cannot be supported.

Issue History
Date Modified	Username	Field	Change
2012-01-25 10:03	michael	New Issue
2017-02-01 17:19	andras	Note Added: 0001304
2017-02-01 17:19	andras	Status	new => resolved
2017-02-01 17:19	andras	Fixed in Version	=> 5.1pre3
2017-02-01 17:19	andras	Resolution	open => won't fix
2017-02-01 17:19	andras	Assigned To	=> andras