---
name: "fltk-config"
section: "1"
platform: "linux"
package: "fltk"
version: "1.4.5-2"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/fltk-config"
---

# fltk-config(1)

script to get information about the installed version of fltk.

## NAME

fltk-config - script to get information about the installed version of fltk.

## SYNOPSIS

fltk-config \[ --prefix *\[=DIR\]* \] \[ --exec-prefix *\[=DIR\]* \] \[ --version \] \[ --api-version \] \[ --use-gl \] \[ --use-images \] \[ --use-glut \] \[ --cc \] \[ --cxx \] \[ --cflags \] \[ --cxxflags \] \[ --ldflags \] \[ --ldstaticflags \] \[ --libs \] \[ -D*name\[=value\]* \] \[ -g \] \[ --compile *program.cxx* \]

## DESCRIPTION

*fltk-config* is a utility script that can be used to get information about the current version of FLTK that is installed on the system, what compiler and linker options to use when building FLTK-based applications, and to build simple FLTK applications.

The following options are supported:

- \--api-version

  Displays the current FLTK API version number, e.g. "1.1".

- \--cc

  - \--cxx

  Displays the C/C++ compiler that was used to compile FLTK.

- \--cflags

  - \--cxxflags

  Displays the C/C++ compiler options to use when compiling source files that use FLTK.

- \--compile *program.cxx*

  Compiles the source file *program.cxx* into *program*. This option implies "--post *program*".

- \-g

  Enables debugging information when compiling with the *--compile* option.

- \--ldflags

  Displays the linker options to use when linking a FLTK application.

- \--ldstaticflags

  Displays the linker options to use when linking a FLTK application to the static FLTK libraries.

- \--libs

  Displays the full path to the FLTK library files, to be used for dependency checking.

- \--use-gl

  Enables OpenGL support.

- \--use-glut

  Enables GLUT support.

- \--use-images

  Enables image file support.

- \--version

  Displays the current FLTK version number, e.g. "1.1.0".

## SEE ALSO

[fluid(1)](/fluid/1.md), [fltk-options(1)](/fltk-options/1.md), [fltk(3)](/fltk/3.md)\
 FLTK Programming Manual\
 FLTK Web Site, https://www.fltk.org/

## AUTHORS

Bill Spitzak and others.