Install Colmap in Centos7

1. Install gcc

1. install gcc g++ etc via yum
2. update gcc to higher version (I choose 5.4)

tar -xvf gcc-5.4.0.tar.bz2
cd gcc-5.4.0
./contrib/download_prerequisits
mkdir build
cd build
…/configure --enable-checking=release --enable-languages=c,c++ --disable-multilib
make
make install

mv gcc gcc-old
mv g++ g+±old
mv c++ c+±old
ls -s /usr/local/bin/gcc /usr/bin/gcc
ln -s /usr/local/bin/g++ /usr/bin/g++
ln -s /usr/local/bin/c++ /usr/bin/c++​

2. install cmake & boost & etc

• cmake

install cmake with high version

detail can be seen here

• BOOST

down load boost from