From 382fd7bbab37dbdead1a42f7dccd3dc4059c402e Mon Sep 17 00:00:00 2001
From: Mike Dalessio <mike.dalessio@gmail.com>
Date: Fri, 17 Nov 2023 14:24:10 -0500
Subject: [PATCH 1/6] ci: make sure the ports cache key includes extconf

because extconf contains the recipe by which libxml2/libxslt are built
---
 .github/workflows/ci.yml         | 14 +++++++-------
 .github/workflows/downstream.yml |  2 +-
 .github/workflows/upstream.yml   |  6 +++---
 3 files changed, 11 insertions(+), 11 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index df1b15d7fed..61798b3a75e 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -110,7 +110,7 @@ jobs:
         if: matrix.sys == 'disable'
         with:
           path: ports
-          key: ports-ubuntu-${{matrix.ruby}}-${{hashFiles('dependencies.yml', 'patches/**/*.patch')}}
+          key: ports-ubuntu-${{matrix.ruby}}-${{hashFiles('dependencies.yml', 'patches/**/*.patch', 'ext/nokogiri/extconf.rb')}}
       - run: bundle install --local || bundle install
       - run: bundle exec rake compile -- --${{matrix.sys}}-system-libraries
       - run: bundle exec rake test
@@ -141,7 +141,7 @@ jobs:
         if: matrix.sys == 'disable'
         with:
           path: ports
-          key: ports-ubuntu-${{matrix.ruby}}-${{hashFiles('dependencies.yml', 'patches/**/*.patch')}}
+          key: ports-ubuntu-${{matrix.ruby}}-${{hashFiles('dependencies.yml', 'patches/**/*.patch', 'ext/nokogiri/extconf.rb')}}
       - run: bundle install --local || bundle install
       - run: bundle exec rake compile -- --${{matrix.sys}}-system-libraries
       - run: bundle exec rake test:valgrind
@@ -202,7 +202,7 @@ jobs:
         if: matrix.sys == 'disable'
         with:
           path: ports
-          key: ports-ubuntu-${{matrix.ruby}}-${{hashFiles('dependencies.yml', 'patches/**/*.patch')}}
+          key: ports-ubuntu-${{matrix.ruby}}-${{hashFiles('dependencies.yml', 'patches/**/*.patch', 'ext/nokogiri/extconf.rb')}}
       - run: bundle install --local || bundle install
       - run: bundle exec rake compile -- --${{matrix.sys}}-system-libraries
       - run: bundle exec rake test
@@ -227,7 +227,7 @@ jobs:
         if: matrix.sys == 'disable'
         with:
           path: ports
-          key: ports-ubuntu-${{matrix.ruby}}-${{hashFiles('dependencies.yml', 'patches/**/*.patch')}}
+          key: ports-ubuntu-${{matrix.ruby}}-${{hashFiles('dependencies.yml', 'patches/**/*.patch', 'ext/nokogiri/extconf.rb')}}
       - run: bundle install --local || bundle install
       - run: bundle exec rake compile -- --${{matrix.sys}}-system-libraries
       - run: bundle exec rake test:valgrind
@@ -253,7 +253,7 @@ jobs:
         if: matrix.sys == 'disable'
         with:
           path: ports
-          key: ports-macos-${{hashFiles('dependencies.yml', 'patches/**/*.patch')}}
+          key: ports-macos-${{hashFiles('dependencies.yml', 'patches/**/*.patch', 'ext/nokogiri/extconf.rb')}}
       - run: bundle exec rake compile -- --${{matrix.sys}}-system-libraries
       - run: bundle exec rake test
 
@@ -283,7 +283,7 @@ jobs:
         if: matrix.sys == 'disable'
         with:
           path: ports
-          key: ports-windows-${{hashFiles('dependencies.yml', 'patches/**/*.patch')}}
+          key: ports-windows-${{hashFiles('dependencies.yml', 'patches/**/*.patch', 'ext/nokogiri/extconf.rb')}}
       - run: bundle exec rake compile -- --${{matrix.sys}}-system-libraries
       - run: bundle exec rake test
 
@@ -378,7 +378,7 @@ jobs:
         if: matrix.sys == 'disable'
         with:
           path: ports
-          key: ports-ubuntu-${{matrix.ruby}}-${{hashFiles('dependencies.yml', 'patches/**/*.patch')}}
+          key: ports-ubuntu-${{matrix.ruby}}-${{hashFiles('dependencies.yml', 'patches/**/*.patch', 'ext/nokogiri/extconf.rb')}}
       - run: bundle install --local || bundle install
       - run: bundle exec rake compile -- --${{matrix.sys}}-system-libraries
       - run: bundle exec rake test:memcheck
diff --git a/.github/workflows/downstream.yml b/.github/workflows/downstream.yml
index 90d8349459b..0ae0a88acb2 100644
--- a/.github/workflows/downstream.yml
+++ b/.github/workflows/downstream.yml
@@ -78,7 +78,7 @@ jobs:
       - uses: actions/cache@v3
         with:
           path: ports
-          key: ports-ubuntu-${{matrix.ruby}}-${{hashFiles('dependencies.yml', 'patches/**/*.patch')}}
+          key: ports-ubuntu-${{matrix.ruby}}-${{hashFiles('dependencies.yml', 'patches/**/*.patch', 'ext/nokogiri/extconf.rb')}}
       - if: matrix.precommand
         run: ${{matrix.precommand}}
       - run: gem install bundler -v ">= 2.3.22" # for "add --path"
diff --git a/.github/workflows/upstream.yml b/.github/workflows/upstream.yml
index b9d65333e14..197af4df0df 100644
--- a/.github/workflows/upstream.yml
+++ b/.github/workflows/upstream.yml
@@ -118,7 +118,7 @@ jobs:
         if: matrix.sys == 'disable'
         with:
           path: ports
-          key: ports-${{matrix.plat}}-${{hashFiles('dependencies.yml', 'patches/**/*.patch')}}
+          key: ports-${{matrix.plat}}-${{hashFiles('dependencies.yml', 'patches/**/*.patch', 'ext/nokogiri/extconf.rb')}}
       - run: bundle exec rake compile -- --${{matrix.sys}}-system-libraries
       - run: bundle exec rake test
 
@@ -142,7 +142,7 @@ jobs:
         if: matrix.sys == 'disable'
         with:
           path: ports
-          key: ports-ubuntu-head-${{hashFiles('dependencies.yml', 'patches/**/*.patch')}}
+          key: ports-ubuntu-head-${{hashFiles('dependencies.yml', 'patches/**/*.patch', 'ext/nokogiri/extconf.rb')}}
       - run: bundle exec rake compile -- --${{matrix.sys}}-system-libraries
       - run: bundle exec rake test:valgrind
       - run: bundle exec rake test:memcheck
@@ -172,7 +172,7 @@ jobs:
       - uses: actions/cache@v3
         with:
           path: ports
-          key: ports-ubuntu-3.2-${{hashFiles('dependencies.yml', 'patches/**/*.patch')}}
+          key: ports-ubuntu-3.2-${{hashFiles('dependencies.yml', 'patches/**/*.patch', 'ext/nokogiri/extconf.rb')}}
       - name: Update html5lib-tests
         run: |
           cd test/html5lib-tests

From ba4f31bdd136109c0db26a64ba1494d289a3a9b5 Mon Sep 17 00:00:00 2001
From: Mike Dalessio <mike.dalessio@gmail.com>
Date: Thu, 16 Nov 2023 22:52:28 -0500
Subject: [PATCH 2/6] dep: update libxml to 2.12.0 and libxslt to 1.1.39

though note that libxslt was also previously updated to 1.1.39 on the
v1.15.x branch.

- https://gitlab.gnome.org/GNOME/libxml2/-/releases/v2.12.0
- https://gitlab.gnome.org/GNOME/libxslt/-/releases/v1.1.39
---
 dependencies.yml | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/dependencies.yml b/dependencies.yml
index 0aa95bb151a..40a78dfefc9 100644
--- a/dependencies.yml
+++ b/dependencies.yml
@@ -1,12 +1,12 @@
 libxml2:
-  version: "2.11.5"
-  sha256: "3727b078c360ec69fa869de14bd6f75d7ee8d36987b071e6928d4720a28df3a6"
-  # sha-256 hash provided in https://download.gnome.org/sources/libxml2/2.11/libxml2-2.11.5.sha256sum
+  version: "2.12.0"
+  sha256: "431521c8e19ca396af4fa97743b5a6bfcccddbba90e16426a15e5374cd64fe0d"
+  # sha-256 hash provided in https://download.gnome.org/sources/libxml2/2.12/libxml2-2.12.0.sha256sum
 
 libxslt:
-  version: "1.1.38"
-  sha256: "1f32450425819a09acaff2ab7a5a7f8a2ec7956e505d7beeb45e843d0e1ecab1"
-  # sha-256 hash provided in https://download.gnome.org/sources/libxslt/1.1/libxslt-1.1.38.sha256sum
+  version: "1.1.39"
+  sha256: "2a20ad621148339b0759c4d4e96719362dee64c9a096dbba625ba053846349f0"
+  # sha-256 hash provided in https://download.gnome.org/sources/libxslt/1.1/libxslt-1.1.39.sha256sum
 
 zlib:
   version: "1.3"

From f3516ae734be8d3b65cfc35527ac60b725acc31f Mon Sep 17 00:00:00 2001
From: Mike Dalessio <mike.dalessio@gmail.com>
Date: Tue, 24 Oct 2023 08:39:53 -0400
Subject: [PATCH 3/6] dev: handle libxml 2.12's use of const for xmlError
 pointers

see https://gitlab.gnome.org/GNOME/libxml2/-/commit/45470611b047db78106dcb2fdbd4164163c15ab7 and other upstream commits
---
 ext/nokogiri/html4_sax_push_parser.c | 2 +-
 ext/nokogiri/nokogiri.h              | 9 ++++++---
 ext/nokogiri/test_global_handlers.c  | 2 +-
 ext/nokogiri/xml_document.c          | 6 +++---
 ext/nokogiri/xml_node.c              | 2 +-
 ext/nokogiri/xml_reader.c            | 2 +-
 ext/nokogiri/xml_relax_ng.c          | 2 +-
 ext/nokogiri/xml_sax_push_parser.c   | 2 +-
 ext/nokogiri/xml_schema.c            | 2 +-
 ext/nokogiri/xml_syntax_error.c      | 6 +++---
 10 files changed, 19 insertions(+), 16 deletions(-)

diff --git a/ext/nokogiri/html4_sax_push_parser.c b/ext/nokogiri/html4_sax_push_parser.c
index 569f76c5859..6955c0dcdb9 100644
--- a/ext/nokogiri/html4_sax_push_parser.c
+++ b/ext/nokogiri/html4_sax_push_parser.c
@@ -32,7 +32,7 @@ native_write(VALUE self, VALUE _chunk, VALUE _last_chunk)
 
   if ((status != 0) && !(ctx->options & XML_PARSE_RECOVER)) {
     // TODO: there appear to be no tests for this block
-    xmlErrorPtr e = xmlCtxtGetLastError(ctx);
+    xmlErrorConstPtr e = xmlCtxtGetLastError(ctx);
     Nokogiri_error_raise(NULL, e);
   }
 
diff --git a/ext/nokogiri/nokogiri.h b/ext/nokogiri/nokogiri.h
index ffc1749b91d..b8d6e18ba52 100644
--- a/ext/nokogiri/nokogiri.h
+++ b/ext/nokogiri/nokogiri.h
@@ -66,6 +66,9 @@ xmlNodePtr xmlLastElementChild(xmlNodePtr parent);
 #define XMLNS_PREFIX "xmlns"
 #define XMLNS_PREFIX_LEN 6 /* including either colon or \0 */
 
+#ifndef xmlErrorConstPtr
+#  define xmlErrorConstPtr const xmlError *
+#endif
 
 #include <ruby.h>
 #include <ruby/st.h>
@@ -227,9 +230,9 @@ void Nokogiri_structured_error_func_save(libxmlStructuredErrorHandlerState *hand
 void Nokogiri_structured_error_func_save_and_set(libxmlStructuredErrorHandlerState *handler_state, void *user_data,
     xmlStructuredErrorFunc handler);
 void Nokogiri_structured_error_func_restore(libxmlStructuredErrorHandlerState *handler_state);
-VALUE Nokogiri_wrap_xml_syntax_error(xmlErrorPtr error);
-void Nokogiri_error_array_pusher(void *ctx, xmlErrorPtr error);
-NORETURN_DECL void Nokogiri_error_raise(void *ctx, xmlErrorPtr error);
+VALUE Nokogiri_wrap_xml_syntax_error(xmlErrorConstPtr error);
+void Nokogiri_error_array_pusher(void *ctx, xmlErrorConstPtr error);
+NORETURN_DECL void Nokogiri_error_raise(void *ctx, xmlErrorConstPtr error);
 void Nokogiri_marshal_xpath_funcall_and_return_values(xmlXPathParserContextPtr ctx, int nargs, VALUE handler,
     const char *function_name) ;
 
diff --git a/ext/nokogiri/test_global_handlers.c b/ext/nokogiri/test_global_handlers.c
index 79bb6446612..cec0915fe89 100644
--- a/ext/nokogiri/test_global_handlers.c
+++ b/ext/nokogiri/test_global_handlers.c
@@ -3,7 +3,7 @@
 static VALUE foreign_error_handler_block = Qnil;
 
 static void
-foreign_error_handler(void *user_data, xmlErrorPtr c_error)
+foreign_error_handler(void *user_data, xmlErrorConstPtr c_error)
 {
   rb_funcall(foreign_error_handler_block, rb_intern("call"), 0);
 }
diff --git a/ext/nokogiri/xml_document.c b/ext/nokogiri/xml_document.c
index bfaaf94f54e..7b4284bd944 100644
--- a/ext/nokogiri/xml_document.c
+++ b/ext/nokogiri/xml_document.c
@@ -337,7 +337,7 @@ read_io(VALUE klass,
   xmlSetStructuredErrorFunc(NULL, NULL);
 
   if (doc == NULL) {
-    xmlErrorPtr error;
+    xmlErrorConstPtr error;
 
     xmlFreeDoc(doc);
 
@@ -383,7 +383,7 @@ read_memory(VALUE klass,
   xmlSetStructuredErrorFunc(NULL, NULL);
 
   if (doc == NULL) {
-    xmlErrorPtr error;
+    xmlErrorConstPtr error;
 
     xmlFreeDoc(doc);
 
@@ -537,7 +537,7 @@ create_entity(int argc, VALUE *argv, VALUE self)
         );
 
   if (NULL == ptr) {
-    xmlErrorPtr error = xmlGetLastError();
+    xmlErrorConstPtr error = xmlGetLastError();
     if (error) {
       rb_exc_raise(Nokogiri_wrap_xml_syntax_error(error));
     } else {
diff --git a/ext/nokogiri/xml_node.c b/ext/nokogiri/xml_node.c
index 01bd421d4d5..174c8319576 100644
--- a/ext/nokogiri/xml_node.c
+++ b/ext/nokogiri/xml_node.c
@@ -2138,7 +2138,7 @@ process_xincludes(VALUE self, VALUE options)
   xmlSetStructuredErrorFunc(NULL, NULL);
 
   if (rcode < 0) {
-    xmlErrorPtr error;
+    xmlErrorConstPtr error;
 
     error = xmlGetLastError();
     if (error) {
diff --git a/ext/nokogiri/xml_reader.c b/ext/nokogiri/xml_reader.c
index d603b9829e4..3c78d50c879 100644
--- a/ext/nokogiri/xml_reader.c
+++ b/ext/nokogiri/xml_reader.c
@@ -554,7 +554,7 @@ static VALUE
 read_more(VALUE self)
 {
   xmlTextReaderPtr reader;
-  xmlErrorPtr error;
+  xmlErrorConstPtr error;
   VALUE error_list;
   int ret;
 
diff --git a/ext/nokogiri/xml_relax_ng.c b/ext/nokogiri/xml_relax_ng.c
index ddb53bff390..d18946b4bc2 100644
--- a/ext/nokogiri/xml_relax_ng.c
+++ b/ext/nokogiri/xml_relax_ng.c
@@ -93,7 +93,7 @@ xml_relax_ng_parse_schema(
   xmlRelaxNGFreeParserCtxt(c_parser_context);
 
   if (NULL == c_schema) {
-    xmlErrorPtr error = xmlGetLastError();
+    xmlErrorConstPtr error = xmlGetLastError();
     if (error) {
       Nokogiri_error_raise(NULL, error);
     } else {
diff --git a/ext/nokogiri/xml_sax_push_parser.c b/ext/nokogiri/xml_sax_push_parser.c
index 0181819d497..99694df2d6b 100644
--- a/ext/nokogiri/xml_sax_push_parser.c
+++ b/ext/nokogiri/xml_sax_push_parser.c
@@ -59,7 +59,7 @@ native_write(VALUE self, VALUE _chunk, VALUE _last_chunk)
 
   if (xmlParseChunk(ctx, chunk, size, Qtrue == _last_chunk ? 1 : 0)) {
     if (!(ctx->options & XML_PARSE_RECOVER)) {
-      xmlErrorPtr e = xmlCtxtGetLastError(ctx);
+      xmlErrorConstPtr e = xmlCtxtGetLastError(ctx);
       Nokogiri_error_raise(NULL, e);
     }
   }
diff --git a/ext/nokogiri/xml_schema.c b/ext/nokogiri/xml_schema.c
index a94c18d404d..3540d7496d3 100644
--- a/ext/nokogiri/xml_schema.c
+++ b/ext/nokogiri/xml_schema.c
@@ -146,7 +146,7 @@ xml_schema_parse_schema(
   xmlSchemaFreeParserCtxt(c_parser_context);
 
   if (NULL == c_schema) {
-    xmlErrorPtr error = xmlGetLastError();
+    xmlErrorConstPtr error = xmlGetLastError();
     if (error) {
       Nokogiri_error_raise(NULL, error);
     } else {
diff --git a/ext/nokogiri/xml_syntax_error.c b/ext/nokogiri/xml_syntax_error.c
index a5f0e1ad71f..473ccca30e8 100644
--- a/ext/nokogiri/xml_syntax_error.c
+++ b/ext/nokogiri/xml_syntax_error.c
@@ -26,7 +26,7 @@ Nokogiri_structured_error_func_restore(libxmlStructuredErrorHandlerState *handle
 }
 
 void
-Nokogiri_error_array_pusher(void *ctx, xmlErrorPtr error)
+Nokogiri_error_array_pusher(void *ctx, xmlErrorConstPtr error)
 {
   VALUE list = (VALUE)ctx;
   Check_Type(list, T_ARRAY);
@@ -34,13 +34,13 @@ Nokogiri_error_array_pusher(void *ctx, xmlErrorPtr error)
 }
 
 void
-Nokogiri_error_raise(void *ctx, xmlErrorPtr error)
+Nokogiri_error_raise(void *ctx, xmlErrorConstPtr error)
 {
   rb_exc_raise(Nokogiri_wrap_xml_syntax_error(error));
 }
 
 VALUE
-Nokogiri_wrap_xml_syntax_error(xmlErrorPtr error)
+Nokogiri_wrap_xml_syntax_error(xmlErrorConstPtr error)
 {
   VALUE msg, e, klass;
 

From e6314df23999bed532694a0e12604e6b2a52bbce Mon Sep 17 00:00:00 2001
From: Mike Dalessio <mike.dalessio@gmail.com>
Date: Fri, 17 Nov 2023 14:11:30 -0500
Subject: [PATCH 4/6] ext: link libxml2 with `-lpthread` when necessary

libxml 2.12 has a hard dependency on pthread symbols on older systems
with glibc version < 2.34.

note that we also remove the patch for libxml threaded support from
2.11, since we're now explicitly specifying libpthread.
---
 ext/nokogiri/extconf.rb                       |  8 +++++
 ...bxml2-s-libc_single_threaded-support.patch | 30 -------------------
 2 files changed, 8 insertions(+), 30 deletions(-)
 delete mode 100644 patches/libxml2/0011-rip-out-libxml2-s-libc_single_threaded-support.patch

diff --git a/ext/nokogiri/extconf.rb b/ext/nokogiri/extconf.rb
index 33e9963ef48..4a9c3b9fd62 100644
--- a/ext/nokogiri/extconf.rb
+++ b/ext/nokogiri/extconf.rb
@@ -884,6 +884,7 @@ def configure
 
     cppflags = concat_flags(ENV["CPPFLAGS"])
     cflags = concat_flags(ENV["CFLAGS"], "-O2", "-U_FORTIFY_SOURCE", "-g")
+    libs = ""
 
     if cross_build_p
       cppflags = concat_flags(cppflags, "-DNOKOGIRI_PRECOMPILED_LIBRARIES")
@@ -913,6 +914,12 @@ def configure
       "--disable-dependency-tracking"
     end
 
+    # glibc 2.34 and later merged libpthread into libc, but we still need to know if it exists so we
+    # can link libxml2 against it.
+    if local_have_library("pthread", "pthread_key_delete")
+      libs = concat_flags(libs, "-lpthread")
+    end
+
     recipe.configure_options += [
       "--without-python",
       "--without-readline",
@@ -921,6 +928,7 @@ def configure
       "--with-threads",
       "CPPFLAGS=#{cppflags}",
       "CFLAGS=#{cflags}",
+      "LIBS=#{libs}",
     ]
   end
 
diff --git a/patches/libxml2/0011-rip-out-libxml2-s-libc_single_threaded-support.patch b/patches/libxml2/0011-rip-out-libxml2-s-libc_single_threaded-support.patch
deleted file mode 100644
index df5b77300dd..00000000000
--- a/patches/libxml2/0011-rip-out-libxml2-s-libc_single_threaded-support.patch
+++ /dev/null
@@ -1,30 +0,0 @@
-From fb618bd27ac7a9fd32973320016c7ff28dd2f60e Mon Sep 17 00:00:00 2001
-From: Mike Dalessio <mike.dalessio@gmail.com>
-Date: Fri, 5 May 2023 10:10:43 -0400
-Subject: [PATCH] rip out libxml2's libc_single_threaded support
-
-This is a preventative measure because this feature relies on a glibc
-version we can't realistically require of users today. We're not yet
-precompiling on a system with a modern-enough glibc to make this an
-actual problem, but I'm doing it while all of this context is fresh.
----
- threads.c | 3 ++-
- 1 file changed, 2 insertions(+), 1 deletion(-)
-
-diff --git a/threads.c b/threads.c
-index 60dbce4c..eb1c12e5 100644
---- a/threads.c
-+++ b/threads.c
-@@ -27,7 +27,8 @@
- 
- #if defined(HAVE_POSIX_THREADS) && \
-     defined(__GLIBC__) && \
--    __GLIBC__ * 100 + __GLIBC_MINOR__ >= 234
-+    __GLIBC__ * 100 + __GLIBC_MINOR__ >= 234 && \
-+    !defined(NOKOGIRI_PRECOMPILED_LIBRARIES)
- 
- /*
-  * The modern way available since glibc 2.32.
--- 
-2.40.1
-

From 985d15bb7ce41f7b65fc778b8e6a950ee744b509 Mon Sep 17 00:00:00 2001
From: Mike Dalessio <mike.dalessio@gmail.com>
Date: Fri, 17 Nov 2023 14:58:53 -0500
Subject: [PATCH 5/6] ext: allow libpthread in native platform gems

---
 rakelib/extensions.rake | 21 +++++++++++----------
 1 file changed, 11 insertions(+), 10 deletions(-)

diff --git a/rakelib/extensions.rake b/rakelib/extensions.rake
index cb2881436a0..c1dd5566046 100644
--- a/rakelib/extensions.rake
+++ b/rakelib/extensions.rake
@@ -141,6 +141,7 @@ CrossRuby = Struct.new(:version, :platform) do
         "ws2_32.dll",
         "user32.dll",
         "advapi32.dll",
+        "libwinpthread-1.dll",
         libruby_dll,
       ]
     when MINGWUCRT_PLATFORM_REGEX
@@ -160,6 +161,7 @@ CrossRuby = Struct.new(:version, :platform) do
         "api-ms-win-crt-string-l1-1-0.dll",
         "api-ms-win-crt-time-l1-1-0.dll",
         "api-ms-win-crt-utility-l1-1-0.dll",
+        "libwinpthread-1.dll",
         libruby_dll,
       ]
     when X86_LINUX_PLATFORM_REGEX
@@ -167,18 +169,18 @@ CrossRuby = Struct.new(:version, :platform) do
         "libm.so.6",
         "libc.so.6",
         "libdl.so.2", # on old dists only - now in libc
-      ].tap do |dlls|
-        dlls << "libpthread.so.0" if ver >= "3.2.0"
-      end
+        "libpthread.so.0", # on old dists only - now in libc
+        "ld-linux.so.2",
+        "ld-linux-x86-64.so.2",
+      ]
     when AARCH_LINUX_PLATFORM_REGEX
       [
         "libm.so.6",
         "libc.so.6",
         "libdl.so.2", # on old dists only - now in libc
+        "libpthread.so.0", # on old dists only - now in libc
         "ld-linux-aarch64.so.1",
-      ].tap do |dlls|
-        dlls << "libpthread.so.0" if ver >= "3.2.0"
-      end
+      ]
     when DARWIN_PLATFORM_REGEX
       [
         "/usr/lib/libSystem.B.dylib",
@@ -188,12 +190,11 @@ CrossRuby = Struct.new(:version, :platform) do
     when ARM_LINUX_PLATFORM_REGEX
       [
         "libm.so.6",
-        "libdl.so.2",
         "libc.so.6",
+        "libdl.so.2", # on old dists only - now in libc
+        "libpthread.so.0", # on old dists only - now in libc
         "ld-linux-armhf.so.3",
-      ].tap do |dlls|
-        dlls << "libpthread.so.0" if ver >= "3.2.0"
-      end
+      ]
     else
       raise "CrossRuby.allowed_dlls: unmatched platform: #{platform}"
     end

From 340dc31a175eec754af17a12a6af70550279dc7e Mon Sep 17 00:00:00 2001
From: Mike Dalessio <mike.dalessio@gmail.com>
Date: Sat, 18 Nov 2023 09:31:09 -0500
Subject: [PATCH 6/6] ci: test compiling packaged libraries on musl

because link-time behavior is important for the libpthread changes
being made.
---
 .github/workflows/ci.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 61798b3a75e..756f7d4330b 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -151,7 +151,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        sys: ["enable"]
+        sys: ["enable", "disable"]
     runs-on: ubuntu-latest
     container:
       image: ghcr.io/sparklemotion/nokogiri-test:alpine