Why Does Compiling `info.c` with GCC Require the `-lstdc ` Flag?

Compiling C Programs with GCC

While GCC is capable of compiling C code, the compiler errors encountered when attempting to compile "info.c" are due to linker errors. These errors stem from the lack of linking to the standard C library.

To resolve this issue, add the -lstdc flag to the compilation command:

gcc info.C -lstdc++

Alternatively, a simpler solution is to utilize g , which does the following:

• Selects the appropriate back-end compiler based on file extension, similar to GCC.
• Compiles all C source files as C , contrasting with GCC's compilation of .c files as C.
• By default, includes libstdc in the linking step, regardless of input languages.

The following excerpt from a comment by Rup succinctly explains the differences:

"GCC will select the correct back-end compiler based on file extension. However, it links binaries against just the standard C and GCC helper libraries by default. In contrast, g includes libstdc in its linking step by default, regardless of input languages."

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