gnatmake

Ada program build utility

TLDR

Compile an Ada program

$ gnatmake [main.adb]

Compile with optimization

$ gnatmake -O2 [main.adb]

Compile with debugging info

$ gnatmake -g [main.adb]

Compile with parallel jobs

$ gnatmake -j4 [main.adb]

Specify output executable name

$ gnatmake [main.adb] -o [program]

Force recompilation of all sources

$ gnatmake -f [main.adb]

SYNOPSIS

gnatmake [options] filename [options_]

gnatmake is the primary build utility for Ada programs in the GNAT (GNU Ada Toolset) environment. It automatically determines dependencies by analyzing Ada's with clauses, compiles modified source files, and performs binding and linking to create an executable. Unlike traditional make utilities, gnatmake always recomputes dependencies from sources, ensuring accurate tracking of changes.

PARAMETERS

-jN

Use N parallel jobs for compilation.

-g

Generate debugging information.

-Olevel

Optimization level (0, 1, 2, 3, or s for size).

-o name

Output executable name.

-c

Compile only, do not bind or link.

-f

Force recompilation of all sources.

-q

Quiet mode, less output.

-v

Verbose mode.

-Idir

Add directory to source search path.

--RTS=runtime

Specify Ada runtime library.

INSTALL

sudo apt install gnat-12

sudo dnf install gcc-gnat

sudo apk add gcc-gnat

CAVEATS

Multiple main files can be specified to build several executables. Dependencies are computed from Ada source files rather than object file timestamps.