Target Darwin

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This article applies to macOS only.

See also: Multiplatform Programming Guide

Apple iOS new.svg

This article applies to iOS only.

See also: Multiplatform Programming Guide

English (en)

<translate> Warning: </translate> Warning In Lazarus 2.2.0/FPC 3.2.2 and later, the target for building iOS applications was changed from Darwin to iOS due to the advent of the Apple Silicon M1 (ARM64) processor in Mac computers.


Darwin is the target for macOS and iOS, both PowerPC, ARM and ARM64, i386 and X86_64. Programs may also be run on a machine with only Darwin installed.


See Installing Lazarus on macOS.


1) Lazarus IDE

Lazarus is a Delphi-style RAD environment

2) Lightweight IDE

A free IDE in the classic Mac style

3) Any Editor (AlphaX, BBedit, ...) and command line (fpc your_pascal_program.pas)

Universal binaries

Normally for each processor - operating system combination there is one executable, but in macOS you can combine an aarch64 (ARM64) binary and an x86_64 binary into a so-called "universal binary" or "multi-architecture binary" that will run on both Apple ARM64 processors and Intel 64 bit processors. To do this the ARM64 and x86_64 executables have to be compiled separately and then combined using the lipo command line utility.

It is also possible to combine a PowerPC binaries and an x86 binaries into a single combined binary using the lipo command line tool. You would need to first download the PowerPC cross-compiler so you only need to use ppcppc instead of fpc to build your project to generate the PowerPC binary. If you have a PowerPC computer, then the simplest solution is to build the x86 binary on a different computer with x86 architecture.

See also