cmake install error : not running ./bootstrap

Thanks All!!

[sohyeon@theochem11 cmake-3.15.3]$ export PATH=./:~/GCC-7.3.0/bin/:$PATH

[sohyeon@theochem11 cmake-3.15.3]$ gcc --version

gcc (GCC) 7.3.0
Copyright (C) 2017 Free Software Foundation, Inc.

This is free software; see the source for copying conditions.  There is NO

warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

[sohyeon@theochem11 cmake-3.15.3]$ ./bootstrap && make && sudo make install
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CMake 3.15.3, Copyright 2000-2019 Kitware, Inc. and Contributors
Found GNU toolchain
C compiler on this system is: gcc       
C++ compiler on this system is: g++  -std=gnu++11  
Makefile processor on this system is: gmake
g++ has setenv
g++ has unsetenv
g++ does not have environ in stdlib.h
g++ has stl wstring
g++ has <ext/stdio_filebuf.h>

---------------------------------------------
gmake: `cmake'는 이미 갱신되었습니다. 
/export/home/sohyeon/cmake-3.15.3/Bootstrap.cmk/cmake: /usr/lib64/libstdc++.so.6: version `GLIBCXX_3.4.14' not found (required by /export/home/sohyeon/cmake-3.15.3/Bootstrap.cmk/cmake)
/export/home/sohyeon/cmake-3.15.3/Bootstrap.cmk/cmake: /usr/lib64/libstdc++.so.6: version `GLIBCXX_3.4.18' not found (required by /export/home/sohyeon/cmake-3.15.3/Bootstrap.cmk/cmake)
/export/home/sohyeon/cmake-3.15.3/Bootstrap.cmk/cmake: /usr/lib64/libstdc++.so.6: version `CXXABI_1.3.5' not found (required by /export/home/sohyeon/cmake-3.15.3/Bootstrap.cmk/cmake)
/export/home/sohyeon/cmake-3.15.3/Bootstrap.cmk/cmake: /usr/lib64/libstdc++.so.6: version `GLIBCXX_3.4.15' not found (required by /export/home/sohyeon/cmake-3.15.3/Bootstrap.cmk/cmake)
/export/home/sohyeon/cmake-3.15.3/Bootstrap.cmk/cmake: /usr/lib64/libstdc++.so.6: version `GLIBCXX_3.4.20' not found (required by /export/home/sohyeon/cmake-3.15.3/Bootstrap.cmk/cmake)
/export/home/sohyeon/cmake-3.15.3/Bootstrap.cmk/cmake: /usr/lib64/libstdc++.so.6: version `GLIBCXX_3.4.21' not found (required by /export/home/sohyeon/cmake-3.15.3/Bootstrap.cmk/cmake)
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Error when bootstrapping CMake:
Problem while running initial CMake
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Should I download the required libraries and move them to the /export/home/sohyeon/cmake-3.15.3/Bootstrap.cmk/cmake directory?

How can I install cmake? (using Linux)

( p.s. `cmake'는 이미 갱신되었습니다. = "cmake" has already been updated.)