From e0e86b4e4f2bcc2c39084994d6e28d90d4feff05 Mon Sep 17 00:00:00 2001
From: Frank Denis <github@pureftpd.org>
Date: Wed, 15 Jan 2025 22:19:16 +0100
Subject: [PATCH] Add -Dstatic

---
 README.md | 8 ++++++--
 build.zig | 6 +++++-
 2 files changed, 11 insertions(+), 3 deletions(-)

diff --git a/README.md b/README.md
index 0aa9b58..e664a73 100644
--- a/README.md
+++ b/README.md
@@ -23,11 +23,15 @@ Dependencies:
 * [libsodium](https://libsodium.org/) (*optional*)
 * [zig](https://ziglang.org)
 
-Compilation with libsodium:
+Compilation with libsodium, dynamically linked (libsodium will need to be installed on the system for the command to run):
 
     $ zig build -Drelease
 
-Compilation without libsodium:
+Compilation with libsodium, statically linked (libsodium will only be needed for compilation):
+
+    $ zig build -Drelease -Dstatic
+
+Compilation without libsodium, no dependencies:
 
     $ zig build -Drelease -Dwithout_libsodium
 
diff --git a/build.zig b/build.zig
index f0a655a..111fb5b 100644
--- a/build.zig
+++ b/build.zig
@@ -5,6 +5,7 @@ pub fn build(b: *std.Build) !void {
     const optimize = b.standardOptimizeOption(.{ .preferred_optimize_mode = .ReleaseSmall });
 
     const use_libzodium = b.option(bool, "without_libsodium", "Use the zig standard library instead of libsodium") orelse false;
+    const use_static_linking = b.option(bool, "static", "Statically link the binary") orelse false;
 
     const minisign = b.addExecutable(.{
         .name = "minisign",
@@ -31,7 +32,10 @@ pub fn build(b: *std.Build) !void {
     } else {
         minisign.root_module.linkSystemLibrary(
             "sodium",
-            .{ .use_pkg_config = .yes },
+            .{
+                .use_pkg_config = .yes,
+                .preferred_link_mode = if (use_static_linking) .static else .dynamic,
+            },
         );
     }
     minisign.addIncludePath(b.path("src"));