Example 1 demonstrates how the compile and link command can be in one step using g++. In this tutorial, I will provide a step by step guide to build a fully equipped Makefile. Make sure to align your Makefile using tabs. In contrast, a Makefile only compiles the source files that have been modified since the last compile time saving compute time.
However, when you have a complicated compilation process, retyping the compile command becomes cumbersome and it also recompiles all your object binaries (even the source files you did not modify since the last compilation). L flag can be used to specify additional library locations and you will have to use -l flag to specify which library needs to be linked (eg:-lpthread). If you have additional include files, -I flag can be used to specify the include directory containing.
The command will compile each C++ source file and create object files. Usual compilation with g++ will involve a command as follows. This article explains how you can set up your own makefile for your C / C++ project.
Makefiles provide a way to organize build steps involved in C / C++ project compilation.
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