Man pages › Compared with Linux and the BSDs

`curl-config(1)` on Solnix vs Linux and the BSDs

curl-config on Solnix is the upstream curl project's script, published by pkgs.solnix.curl. Its option list is identical to the Linux curl-config page in the bundle. The bundle has no FreeBSD, OpenBSD or NetBSD curl-config page, so no BSD comparison can be made from it.

The manual pages

Solnix: curl-config(1) from pkgs.solnix.curl
Linux: curl-config(1) curl-8.22.0

What Solnix runs

The header says the command on PATH is curl, in the base system packages. No other illumos variants are shipped. The Solnix page is dated 2026-10-24 and the Linux page 2026-09-02, but the option text is the same apart from line wrapping and small wording changes.

Differences

Compared with	Topic	What differs
Linux	same program	The Solnix and Linux curl-config pages document the same 14 options (`--ca`, `--cc`, `--cflags`, `--checkfor`, `--configure`, `--feature`, `--help`, `--libs`, `--prefix`, `--protocols`, `--ssl-backends`, `--static-libs`, `--version`, `--vernum`). Their meanings, version notes and the 0/1 `--checkfor` exit status read the same. Source: Solnix curl-config(1) OPTIONS; Linux curl-config(1) OPTIONS
FreeBSD, OpenBSD, NetBSD	no BSD counterpart in the bundle	The bundle has no curl-config page for FreeBSD, OpenBSD or NetBSD. The manual text here does not say whether those systems ship curl-config or what options it accepts. Check the local installation before relying on it. Source: Bundle header lists only a Linux counterpart; no BSD sections present
Linux	page date	The Solnix page is dated 2026-10-24 and the Linux page 2026-09-02, and the Linux counterpart is labelled curl-8.22.0. The option descriptions are the same, so the dates do not indicate a documented behaviour change. Source: Solnix curl-config(1) footer; Linux curl-config(1) footer and header

Standards

POSIX: curl-config is not a POSIX.1-2024 utility.

Writing portable scripts

Do not assume the order of lines from --feature or --protocols. The manual says no particular order is guaranteed, and the entries are newline-separated.
Use --checkfor with its exit status (0 if new enough, 1 if not) to test the libcurl version. It was added in 7.15.4, so it is not in older versions.

Every difference here is taken from the manual pages linked above: Solnix's published page, Linux (man-pages and the GNU and util-linux manuals), FreeBSD, OpenBSD and NetBSD. Each row names its source. Where a manual is silent, this page is too. Compiled 2026-10-26. Found a mistake? Mail hackers@lists.solnix.io.