Merge pull request #832 from cthorn42/maint/main/nokogiri_gem_install_patch

(maint) Use packaged libxml to build nokogiri on MacOS

Author: mhashizume

configs/components/_base-rubygem.rb

@@ -37,6 +37,15 @@
 pkg.url("https://rubygems.org/downloads/#{name}-#{version}.gem")
 pkg.mirror("#{settings[:buildsources_url]}/#{name}-#{version}.gem")
 
-pkg.install do
-  "#{settings[:gem_install]} #{name}-#{version}.gem"
+# If a gem needs more command line options to install set the :gem_install_options
+# in its component file rubygem-<compoment>, before the instance_eval of this file.
+if settings[:gem_install_options].nil?
+  pkg.install do
+    "#{settings[:gem_install]} #{name}-#{version}.gem"
+  end
+else
+  pkg.install do
+    "#{settings[:gem_install]} #{name}-#{version}.gem #{settings[:gem_install_options]}"
+  end
 end
+

configs/components/rubygem-nokogiri.rb

@@ -1,18 +1,24 @@
 component 'rubygem-nokogiri' do |pkg, _settings, _platform|
   pkg.version '1.14.2'
   pkg.sha256sum 'c765a74aac6cf430a710bb0b6038b8ee11f177393cd6ae8dadc7a44a6e2658b6'
+  # On macOS when we are not cross compiling we need to use runtime's libxml2 and libxslt
+  if platform.is_macos? && !platform.is_cross_compiled?
+    settings[:gem_install_options] = "-- --use-system-libraries \
+        --with-xml2-lib=#{settings[:libdir]} \
+        --with-xml2-include=#{settings[:includedir]}/libxml2 \
+        --with-xslt-lib=#{settings[:libdir]} \
+        --with-xslt-include=#{settings[:includedir]}"
+  end
   instance_eval File.read('configs/components/_base-rubygem.rb')
-
   pkg.build_requires 'rubygem-mini_portile2'
-
   gem_home = settings[:gem_home]
   pkg.environment "GEM_HOME", gem_home
-
-  # When cross compiling nokogiri native extensions on macOS 11/12 ARM, there is a 94M tmp
-  # directory that's not needed
-  if platform.is_macos? && platform.architecture == 'arm64'
-    install do
-      "rm -r #{gem_home}/gems/nokogiri-#{pkg.get_version}/ext/nokogiri/tmp"
+  if platform.is_macos?
+    pkg.environment "PKG_CONFIG_PATH", "#{settings[:libdir]}/pkgconfig"
+    if platform.is_cross_compiled?
+      pkg.install do
+        "rm -r #{gem_home}/gems/nokogiri-#{pkg.get_version}/ext/nokogiri/tmp"
+      end
     end
   end
 end