When I was compiling CMAKE-3.11.4 with GNU-5.4.0, we encountered the error

"The C++ compiler does not support C++11 (e.g. std::unique_ptr)"

This was rather complex to solve. I believe if I upgrade my GNU Compilers, it might work. Somehow at GNU 5.4, it does not recognize the C++11 support.

But when I downgraded to Cmake-3.9.6, it works immediately without issues. Do look at https://cmake.org/files/v3.9/

# cd $CMAKE_HOME
#./bootstrap
# gmake

If you compiling using cmake and you make encounter error like this. This is despite the fact that you use the latest compiler like GNU-5.2.0. But somehow the cmake is still looking at the older gnu that comes with CentOS 6

[user1@node1 build]$ cmake ..
-- The C compiler identification is GNU 4.4.7
-- The CXX compiler identification is GNU 4.4.7
-- Check for working C compiler: /usr/bin/cc
-- Check for working C compiler: /usr/bin/cc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/c++
-- Check for working CXX compiler: /usr/bin/c++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
CMake Error at CMakeLists.txt:24 (message):
The compiler /usr/bin/c++ has no C++11 support. Aborting.

To resolve this, you have to be more explicit in the cmake parameter point to the corrcet g++, gcc

[user1@node1 build]$ cmake .. -DCMAKE_CXX_COMPILER=/usr/local/gcc-5.2.0/bin/g++ -DCMAKE_C_COMPILER=/usr/local/gcc-5.2.0/bin/gcc

I encountered error when compiling GCC 4.8.1 on CentOS 6 I have the prequistics (via yum installed)

1. gmp 4.3.1-7.el6_2.2
2. mpfr  2.4.1-6.el6
3. mpc 0.19-1.el6.rf

But still I enountered the error

configure: error: Building GCC requires GMP 4.2+, MPFR 2.4.0+ and MPC 0.8.0+. 
Try the --with-gmp, --with-mpfr and/or --with-mpc options to specify their locations.  
Source code for these libraries can be found at their respective hosting sites as well as 
at ftp://gcc.gnu.org/pub/gcc/infrastructure/

To resolve the issue, download from the ftp://gcc.gnu.org/pub/gcc/infrastructure/ the following application and compile them.

1. gmp-4.3.2.tar.bz2
2. mpfr-2.4.2.tar.bz2
3. mpc-0.8.1.tar.gz

1. Install gmp-4.3.2

# bunzip2 gmp-4.3.2.tar.bz2
# tar -zxvf gmp-4.3.2.tar
# cd gmp-4.3.2
# ./configure --prefix=/usr/local/gmp-4.3.2
# make
# make install

2. Install mpfr-2.4.2 (requires gmp-4.3.2 as prerequisites)

# bunzip2 mpfr-2.4.2.tar.bz2
# tar -zxvf mpfr-2.4.2.tar
# cd mpfr-2.4.2
# ./configure --prefix=/usr/local/mpfr-2.4.2 --with-gmp=/usr/local/gmp-4.3.2/
# make
# make install

3. Install mpc-0.8.1 (requires gmp-4.3.2 and mpfr-2.4.2 as prerequisites )

# tar -zxvf mpc-0.8.1.tar.gz
# cd mpc-0.8.1
#./configure --prefix=/usr/local/mpc-0.8.1/ --with-gmp=/usr/local/gmp-4.3.2/ --with-mpfr=/usr/local/mpfr-2.4.2
# make
# make install

4. Update your LD_LIBRARY_PATH reflect /usr/local/mpc-0.8.1/lib In your .bash_profile include the following

export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/mpc-0.8.1

5. Install the glibc-devel.i686. For more information, do look at Error when compiling GCC 4.8.1 (linuxtoolkit.blogspot.com)
6. Finally install GNU CC 4.8.1

# tar -zxvf  gcc-4.8.1.tar.gz
# cd gcc-4.8.1
# mkdir build-gcc
# cd build-gcc
# ../configure --prefix=/usr/local/gcc-4.8.1 --with-mpfr=/usr/local/mpfr-2.4.2 --with-mpc=/usr/local/mpc-0.8.1 --with-gmp=/usr/local/gmp-4.3.2
# make
# make install