swi-prolog: optional libarchive support

Also prevent finding a MacPorts installed libarchive.

Closes #28666.

1 files changed, 10 insertions, 0 deletions

diff --git a/Library/Formula/swi-prolog.rb b/Library/Formula/swi-prolog.rb
index dc0862a6f..7d15a5ab8 100644
--- a/Library/Formula/swi-prolog.rb
+++ b/Library/Formula/swi-prolog.rb
@@ -22,6 +22,7 @@ class SwiProlog < Formula
 
   depends_on 'readline'
   depends_on 'gmp'
+  depends_on 'libarchive' => :optional
 
   if build.with? "xpce"
     depends_on 'pkg-config' => :build
@@ -41,6 +42,15 @@ class SwiProlog < Formula
   end
 
   def install
+    # The archive package hard-codes a check for MacPort libarchive
+    # Replace this with a check for Homebrew's libarchive, or nowhere
+    if build.with? "libarchive"
+      inreplace "packages/archive/configure.in", "/opt/local",
+                                                 Formula['libarchive'].opt_prefix
+    else
+      ENV.append "DISABLE_PKGS", "archive"
+    end
+
     args = ["--prefix=#{libexec}", "--mandir=#{man}"]
     ENV.append 'DISABLE_PKGS', "jpl" if build.without? "jpl"
     ENV.append 'DISABLE_PKGS', "xpce" if build.without? "xpce"