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cmake error: multiple definition of `main'


Wryshu

Question

SOLVED: See reply below

Anyone have a solution how to get past this?

Following the wiki for CentOS 7 for MaNGOS Zero, getting an error on:

cmake /opt/mangos/SOURCES/server -DTBB_USE_EXTERNAL=1 -DCMAKE_BUILD_TYPE=release -DACE_USE_EXTERNAL=0 -DCMAKE_INSTALL_PREFIX=/opt/mangos -DINCLUDE_BINDINGS_DIR=scripts -DPCH=0 -DCMAKE_CXX_FLAGS="-O3 -march=native" -DCMAKE_C_FLAGS="-O3 -march=native"

Linking CXX shared library libmangosscript.so
CMakeFiles/mangosscript.dir/_build/CMakeFiles/2.8.11/CompilerIdCXX/CMakeCXXCompi         lerId.cpp.o: In function `main':
CMakeCXXCompilerId.cpp:(.text.startup+0x0): multiple definition of `main'
CMakeFiles/mangosscript.dir/tool/git_id/git_id.cpp.o:git_id.cpp:(.text.startup+0         x0): first defined here
collect2: error: ld returned 1 exit status
make[2]: *** [src/bindings/scripts/libmangosscript.so] Error 1
make[1]: *** [src/bindings/scripts/CMakeFiles/mangosscript.dir/all] Error 2
make: *** [all] Error 2

sudo make install

sudo make install
[  0%] Built target genrev
[  0%] Built target revision.h
[  0%] Built target ACE_Project
[  1%] Built target detour
[  5%] Built target g3dlite
[  5%] Built target gsoap
[ 26%] Built target storm
[ 26%] Built target framework
[ 28%] Built target shared
[ 29%] Built target realmd
[ 47%] Built target game
[ 48%] Built target mangosd
Linking CXX shared library libmangosscript.so
CMakeFiles/mangosscript.dir/_build/CMakeFiles/2.8.11/CompilerIdCXX/CMakeCXXCompilerId.cpp                                                                                                                                                    .o: In function `main':
CMakeCXXCompilerId.cpp:(.text.startup+0x0): multiple definition of `main'
CMakeFiles/mangosscript.dir/tool/git_id/git_id.cpp.o:git_id.cpp:(.text.startup+0x0): firs                                                                                                                                                    t defined here
collect2: error: ld returned 1 exit status
make[2]: *** [src/bindings/scripts/libmangosscript.so] Error 1
make[1]: *** [src/bindings/scripts/CMakeFiles/mangosscript.dir/all] Error 2
make: *** [all] Error 2

Many thanks for looking!

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1 answer to this question

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I got some help in a PM on this from H0zen, and want to share what I learned.

First of all, if you follow the tutorial, you will not get the latest, so instead do the following:

create a SOURCES folder in your home folder

mkdir SOURCES && cd SOURCES

now git the source

git clone --recursive -b develop21 https://github.com/mangoszero/server.git mangos0

cd mangos0
git clone --recursive -b develop21 https://github.com/mangoszero/database.git database

create a _build folder

mkdir _build && cd _build

run cmake

** NOTE, make sure you chown /opt/mangos to the users compiling, or use sudo and chown later **

cmake .. -DCMAKE_INSTALL_PREFIX=/opt/mangos

now compile, and take a long break

make install

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