what is -ltr in c
In the C programming language, the “-ltr” argument is commonly used with the gcc compiler to link additional libraries when compiling a program. The argument “-ltr” instructs the compiler to link the “rt” (Real-Time Library) library, which provides functions for real-time processing and application programming.
When compiling a C program using the gcc compiler, the process typically involves three main steps: preprocessing, compiling, and linking. The “-ltr” argument is specific to the linking stage and is used to include the Real-Time Library in the final executable program.
Here’s an example of how the “-ltr” argument might be used when compiling a C program with gcc:
gcc program.c -o program -ltr
In this command:
- “gcc” is the compiler command.
- “program.c” is the source code file to be compiled.
- “-o program” specifies the output file name for the compiled program.
- “-ltr” instructs the compiler to link the Real-Time Library.
By including the “-ltr” argument in the gcc command, the Real-Time Library functions are linked to the program, allowing it to access and utilize the functions provided by the library during execution.