Add build.zig file

README.md

@@ -16,11 +16,22 @@ public key:
 Compilation / installation
 --------------------------
 
+## Using [Zig](https://ziglang.org):
+
 Dependencies:
 
+* [libsodium](https://libsodium.org/)
+
+Compilation:
+
+    $ zig build -Drelease-small
+
+## Using cmake and gcc or clang:
+
 * [libsodium](https://libsodium.org/)
 * cmake
 * pkg-config
+* gcc or clang
 
 Compilation:
 
@@ -50,10 +61,6 @@ Minisign is also available in chocolatey on Windows:
 
     $ choco install minisign
 
-Minisign is also available on Ubuntu as a PPA:
-
-    $ [sudo] add-apt-repository ppa:dysfunctionalprogramming/minisign
-
 Minisign is also available with docker:
 
     $ docker run -i --rm jedisct1/minisign

build.zig

@@ -0,0 +1,17 @@
+const std = @import("std");
+
+pub fn build(b: *std.build.Builder) !void {
+    var target = b.standardTargetOptions(.{});
+    const mode = b.standardReleaseOptions();
+
+    const minisign = b.addExecutable("minisign", null);
+    minisign.setTarget(target);
+    minisign.setBuildMode(mode);
+    minisign.install();
+    minisign.linkLibC();
+    minisign.linkSystemLibrary("sodium");
+
+    minisign.addIncludeDir("src");
+    minisign.addSystemIncludeDir("/usr/local/include");
+    minisign.addCSourceFiles(&.{ "src/base64.c", "src/get_line.c", "src/helpers.c", "src/minisign.c" }, &.{});
+}

src/minisign.c

@@ -1,6 +1,5 @@
 
 #include <assert.h>
-#include <getopt.h>
 #include <inttypes.h>
 #include <limits.h>
 #include <stddef.h>
@@ -10,6 +9,7 @@
 #include <stdlib.h>
 #include <string.h>
 #include <time.h>
+#include <unistd.h>
 
 #include <sodium.h>