LinkMode is a type; for the value, consistently use "linkage"

Author: jedisct1

.github/workflows/compile.yml

@@ -41,8 +41,8 @@ jobs:
           zig build -Dtarget=wasm32-wasi
           zig build -Dtarget=wasm32-freestanding
 
-          zig build -Dlink-mode=dynamic
-          zig build -Dlink-mode=dynamic -Drelease
-          zig build -Dlink-mode=dynamic -Drelease -Dfavor-performance
-          zig build -Dlink-mode=dynamic -Drelease -Dwith-benchmark
-          zig build -Dlink-mode=dynamic -Drelease -Dwith-benchmark -Dfavor-performance
+          zig build -Dlinkage=dynamic
+          zig build -Dlinkage=dynamic -Drelease
+          zig build -Dlinkage=dynamic -Drelease -Dfavor-performance
+          zig build -Dlinkage=dynamic -Drelease -Dwith-benchmark
+          zig build -Dlinkage=dynamic -Drelease -Dwith-benchmark -Dfavor-performance

README.md

@@ -26,9 +26,9 @@ Note that the compiler makes a difference. Zig (or a recent `clang` with target-
 zig build -Drelease
 ```
 
-To build the library as a shared object using the `-Dlink-mode` option:
+To build the library as a shared object using the `-Dlinkage` option:
 ```sh
-zig build -Dlink-mode=dynamic -Drelease
+zig build -Dlinkage=dynamic -Drelease
 ```
 
 The library and headers are installed in the `zig-out` folder.

build.zig

@@ -5,7 +5,7 @@ pub fn build(b: *std.Build) void {
     const with_benchmark: bool = b.option(bool, "with-benchmark", "Compile benchmark") orelse false;
     const optimize = b.standardOptimizeOption(.{ .preferred_optimize_mode = .ReleaseFast });
     const version = std.SemanticVersion.parse("0.4.5") catch unreachable;
-    const linkage = b.option(std.builtin.LinkMode, "link-mode", "Link mode") orelse .static;
+    const linkage = b.option(std.builtin.LinkMode, "linkage", "Link mode") orelse .static;
 
     const lib = b.addLibrary(.{
         .name = "aegis",