fix: Do not require zig for CI builds (#430)

* fix: Do not require zig for CI builds

fixes #429

* chore: Update docs for - fix: Do not require zig for CI builds

Author: dmtrKovalenko

crates/fff-core/build.rs

@@ -1,36 +1,28 @@
 fn main() {
-    // When the `zlob` feature is enabled (Zig-compiled C library):
-    // On Windows MSVC, explicitly link the C runtime libraries.
-    // Zig-compiled static libraries don't emit /DEFAULTLIB directives for the
-    // MSVC CRT, so symbols like strcmp, memcpy etc. would be unresolved.
     if std::env::var("CARGO_FEATURE_ZLOB").is_ok() {
+        if !zig_available() {
+            panic!(
+                "The `zlob` feature is enabled but Zig is not installed. \
+                 Install Zig (https://ziglang.org/download/) or build without \
+                 `--features zlob`."
+            );
+        }
+
         let target = std::env::var("TARGET").unwrap_or_default();
         if target.contains("windows") && target.contains("msvc") {
             println!("cargo:rustc-link-lib=msvcrt");
             println!("cargo:rustc-link-lib=ucrt");
             println!("cargo:rustc-link-lib=vcruntime");
         }
-    } else if std::env::var("CI").is_ok() {
-        // CI must always build with zlob for production-quality binaries.
-        if !zig_available() {
-            panic!(
-                "CI detected but Zig is not installed. \
-                 Please install Zig and build with `--features zlob`."
-            );
-        }
-        panic!(
-            "CI detected but `zlob` feature is not enabled. \
-             Build with `--features zlob`."
-        );
-    } else {
+    } else if std::env::var("CARGO_PRIMARY_PACKAGE").is_ok() && zig_available() {
         // Hint: if Zig is available but the zlob feature wasn't enabled,
         // let the developer know they can get faster glob matching.
-        if zig_available() {
-            println!(
-                "cargo:warning=Zig detected but `zlob` feature is not enabled. \
-                 Build with `--features zlob` for faster glob matching."
-            );
-        }
+        // Only emit this hint when this crate is the primary package to
+        // avoid noisy warnings for downstream consumers.
+        println!(
+            "cargo:warning=Zig detected but `zlob` feature is not enabled. \
+             Build with `--features zlob` for faster glob matching."
+        );
     }
 }
 

doc/fff.nvim.txt

@@ -1,5 +1,5 @@
 *fff.nvim.txt*
-                            For Neovim >= 0.10.0    Last change: 2026 April 27
+                            For Neovim >= 0.10.0    Last change: 2026 April 30
 
 ==============================================================================
 Table of Contents                                 *fff.nvim-table-of-contents*