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I am working on VANET. for that, i need to install NS2 on my fedora 24 system. NS 2 version - ns 2.34 . During the installation process, i followed all the steps of ns 2.34 and made changes in the respective files. But at last, i found an error like the one attached in the screenshot. Error: narrowing conversion of 252 from 'int' to 'char' inside play.xbm

I am unable to solve this error. Please guide me for this. enter image description here

Dalin Huang
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jenis shah
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2 Answers2

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I solved the problem.

Refer to:error: narrowing conversion of ‘194’ from ‘int’ to ‘char’ inside { }

Add-funsigned-char to the L48 of the Makefile in the /ns-allinone-2.34/nam-1.15 directory

image: the code was added like this

Jian Song
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i followed all the steps of ns 2.34

Some old "ns2 tutorials" were valid only for a very short time.

Fedora 24 :

Your compiling errors : g++ version 6.3 is OK with ns-2.34, but patching is required. I.e. ns-2.34 was built for g++ version 4.1.2.

ns234_gcc49.patch https://drive.google.com/file/d/0B7S255p3kFXNZDNyV1BPZHhEY0U/view?usp=sharing

cd ns-allinone-2.34/
patch -p0 < ns234_gcc49.patch
./install

P.S. : ns-allinone-2.34 + ns234_gcc49.patch was tested OK with two different Fedora 24 : The 64bits version and the 32bits version. ns-allinone-2.34 can of course also be compiled as is / no changes : export CC=gcc34 CXX=g++34 && ./install

Requires : # dnf install compat-gcc-34-c++

Knud Larsen
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