tectonic: fix MacOS references.

Needed after Homebrew/brew#16306.
Homebrew · Dec 14, 2023 · 58df39e · 58df39e
1 parent 27ecc47
commit 58df39e
Showing 1 changed file with 5 additions and 2 deletions.
diff --git a/Formula/t/tectonic.rb b/Formula/t/tectonic.rb
@@ -38,8 +38,11 @@ class Tectonic < Formula
 
   def install
     ENV.cxx11
-    ENV["MACOSX_DEPLOYMENT_TARGET"] = MacOS.version.to_s # needed for CLT-only builds
-    ENV.delete("HOMEBREW_SDKROOT") if MacOS.version == :high_sierra
+
+    if OS.mac?
+      ENV["MACOSX_DEPLOYMENT_TARGET"] = MacOS.version.to_s # needed for CLT-only builds
+      ENV.delete("HOMEBREW_SDKROOT") if MacOS.version == :high_sierra
+    end
 
     # Ensure that the `openssl` crate picks up the intended library.
     # https://crates.io/crates/openssl#manual-configuration