在编译执行make命令的时候，提示make: g++: Command not found，原因是缺少组件导致的。
[smart@node-build cpp_jni]$ make
g++ -c -pipe -g -std=gnu++0x -Wall -W -fPIC -I. -I/usr/java/jdk1.8.0_131/include -I/usr/java/jdk1.8.0_131/include/linux -I../../../../Qt5.6.1/5.6/gcc_64/mkspecs/linux-g++ -o com_example_demo_jni_TestJni.o com_example_demo_jni_TestJni.cpp
make: g++: Command not found
make: *** [com_example_demo_jni_TestJni.o] Error 127
执行yum search "gcc-c++"查询缺少组件的版本，不同的操作系统版本可能会不一样。
[smart@node-build cpp_jni]$ yum search "gcc-c++"
Loaded plugins: fastestmirror
Determining fastest mirrors
* base: mirrors.nju.edu.cn
* extras: mirrors.nju.edu.cn
* updates: mirrors.aliyun.com
==================================================================================================== N/S matched: gcc-c++ =====================================================================================================
gcc-c++.x86_64 : C++ support for GCC
Name and summary matches only, use "search all" for everything.
切换到root用户，执行yum install "gcc-c++.x86_64" -y安装对应版本的组件
[root@node-build cpp_jni]# yum install "gcc-c++.x86_64" -y
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
* base: mirrors.cn99.com
* extras: mirrors.163.com
* updates: ftp.sjtu.edu.cn
Resolving Dependencies
--> Running transaction check
---> Package gcc-c++.x86_64 0:4.8.5-39.el7 will be installed
--> Processing Dependency: libstdc++-devel = 4.8.5-39.el7 for package: gcc-c++-4.8.5-39.el7.x86_64
--> Processing Dependency: libstdc++ = 4.8.5-39.el7 for package: gcc-c++-4.8.5-39.el7.x86_64
--> Processing Dependency: gcc = 4.8.5-39.el7 for package: gcc-c++-4.8.5-39.el7.x86_64
--> Processing Dependency: libmpfr.so.4()(64bit) for package: gcc-c++-4.8.5-39.el7.x86_64
--> Processing Dependency: libmpc.so.3()(64bit) for package: gcc-c++-4.8.5-39.el7.x86_64
--> Running transaction check
---> Package gcc.x86_64 0:4.8.5-39.el7 will be installed
--> Processing Dependency: libgomp = 4.8.5-39.el7 for package: gcc-4.8.5-39.el7.x86_64
--> Processing Dependency: cpp = 4.8.5-39.el7 for package: gcc-4.8.5-39.el7.x86_64
--> Processing Dependency: libgcc >= 4.8.5-39.el7 for package: gcc-4.8.5-39.el7.x86_64
--> Processing Dependency: glibc-devel >= 2.2.90-12 for package: gcc-4.8.5-39.el7.x86_64
---> Package libmpc.x86_64 0:1.0.1-3.el7 will be installed
---> Package libstdc++.x86_64 0:4.8.5-36.el7_6.2 will be updated
---> Package libstdc++.x86_64 0:4.8.5-39.el7 will be an update
---> Package libstdc++-devel.x86_64 0:4.8.5-39.el7 will be installed
---> Package mpfr.x86_64 0:3.1.1-4.el7 will be installed
--> Running transaction check
.......................................
Cleanup : glibc-2.17-260.el7_6.6.x86_64 17/19
Cleanup : glibc-common-2.17-260.el7_6.6.x86_64 18/19
Cleanup : libgcc-4.8.5-36.el7_6.2.x86_64 19/19
Verifying : kernel-headers-3.10.0-1127.8.2.el7.x86_64 1/19
Verifying : glibc-common-2.17-307.el7.1.x86_64 2/19
Verifying : glibc-headers-2.17-307.el7.1.x86_64 3/19
Verifying : glibc-devel-2.17-307.el7.1.x86_64 4/19
Verifying : gcc-c++-4.8.5-39.el7.x86_64 5/19
Verifying : mpfr-3.1.1-4.el7.x86_64 6/19
Verifying : cpp-4.8.5-39.el7.x86_64 7/19
Verifying : libmpc-1.0.1-3.el7.x86_64 8/19
Verifying : libgomp-4.8.5-39.el7.x86_64 9/19
Verifying : glibc-2.17-307.el7.1.x86_64 10/19
Verifying : gcc-4.8.5-39.el7.x86_64 11/19
Verifying : libstdc++-devel-4.8.5-39.el7.x86_64 12/19
Verifying : libgcc-4.8.5-39.el7.x86_64 13/19
Verifying : libstdc++-4.8.5-39.el7.x86_64 14/19
Verifying : glibc-2.17-260.el7_6.6.x86_64 15/19
Verifying : libgcc-4.8.5-36.el7_6.2.x86_64 16/19
Verifying : libgomp-4.8.5-36.el7_6.2.x86_64 17/19
Verifying : libstdc++-4.8.5-36.el7_6.2.x86_64 18/19
Verifying : glibc-common-2.17-260.el7_6.6.x86_64 19/19
Installed:
gcc-c++.x86_64 0:4.8.5-39.el7
Dependency Installed:
cpp.x86_64 0:4.8.5-39.el7 gcc.x86_64 0:4.8.5-39.el7 glibc-devel.x86_64 0:2.17-307.el7.1 glibc-headers.x86_64 0:2.17-307.el7.1 kernel-headers.x86_64 0:3.10.0-1127.8.2.el7 libmpc.x86_64 0:1.0.1-3.el7
libstdc++-devel.x86_64 0:4.8.5-39.el7 mpfr.x86_64 0:3.1.1-4.el7
Dependency Updated:
glibc.x86_64 0:2.17-307.el7.1 glibc-common.x86_64 0:2.17-307.el7.1 libgcc.x86_64 0:4.8.5-39.el7 libgomp.x86_64 0:4.8.5-39.el7 libstdc++.x86_64 0:4.8.5-39.el7
Complete!
提示安装完成，再次执行make后不再报错。
[smart@node-build cpp_jni]$ make
g++ -c -pipe -g -std=gnu++0x -Wall -W -fPIC -I. -I/usr/java/jdk1.8.0_131/include -I/usr/java/jdk1.8.0_131/include/linux -I../../../../Qt5.6.1/5.6/gcc_64/mkspecs/linux-g++ -o com_example_demo_jni_TestJni.o com_example_demo_jni_TestJni.cpp
rm -f libnative.so.1.0.0 libnative.so libnative.so.1 libnative.so.1.0
g++ -shared -Wl,-soname,libnative.so.1 -o libnative.so.1.0.0 com_example_demo_jni_TestJni.o
ln -s libnative.so.1.0.0 libnative.so
ln -s libnative.so.1.0.0 libnative.so.1
ln -s libnative.so.1.0.0 libnative.so.1.0
rm -f ../target/cpp/libnative.so.1.0.0
mv -f libnative.so.1.0.0 ../target/cpp/
rm -f ../target/cpp/libnative.so
rm -f ../target/cpp/libnative.so.1
rm -f ../target/cpp/libnative.so.1.0
mv -f libnative.so ../target/cpp/
mv -f libnative.so.1 ../target/cpp/
mv -f libnative.so.1.0 ../target/cpp/