Adding Linker Flags in Xcode

c xcode gmp
Michael Dickens picture Michael Dickens · Jan 24, 2010 · Viewed 32.6k times · Source

(I'm not sure if "flag" is the word I'm looking for, but I'll explain it.)

I am trying to compile a program that uses the GMP big number library. But to be able to compile with GMP, I have to add -lgmp to the end of the command. For example, if I want to compile "program.c", I have to type gcc program.c -lgmp. This is easy from the command line, but I don't see how to do it in Xcode. How can I add the lgmp flag while using Xcode?

Answer

Rob Keniger picture Rob Keniger · Jan 26, 2010

Right-click the target in the Xcode Groups and Files list and select Get Info from the contextual menu. In the Build tab, type linker into the search field and then locate the Other Linker Flags item.

Double-click the Other Linker Flags item and add -lgmp.

Related questions

How to set include path in xcode project

I am trying to use a C library in an Objective-C Xcode project. The libraries directory structure is as follows: -- include/ |-- config.h |-- lib/ | |-- file1.h | |-- file2.h | |-- file3.h The library's docs say …

Read More
Getting warning in C for 'atoi' function

I'm currently coding for a challenge question in a book I'm reading. My code executes perfectly with the correct output, but i"m getting a warning in my code and I'm just wondering why. I'm getting a warning on the …

Read More
Can't compile a C program on a Mac after upgrading to Catalina 10.15

There's a previous question Can't compile C program on a Mac after upgrade to Mojave, and the answers to that have covered most of the variations on what goes wrong. Now — as of Monday 2019-10-07 — you can upgrade to …

Read More