clucene_core_2: fix build with musl and gcc>=11 (#217146)

pkgs/development/libraries/clucene-core/2.x.nix

@@ -37,6 +37,10 @@ stdenv.mkDerivation rec {
     ./Install-contribs-lib.patch
     # From arch
     ./fix-missing-include-time.patch
+
+    # required for darwin and linux-musl
+    ./pthread-include.patch
+
   ] ++ lib.optionals stdenv.isDarwin [ ./fix-darwin.patch ];
 
   # fails with "Unable to find executable:

pkgs/development/libraries/clucene-core/fix-darwin.patch

@@ -1,16 +1,3 @@
---- a/src/shared/CLucene/LuceneThreads.h
-+++ b/src/shared/CLucene/LuceneThreads.h
-@@ -7,6 +7,9 @@
- #ifndef _LuceneThreads_h
- #define  _LuceneThreads_h
-
-+#if defined(_CL_HAVE_PTHREAD)
-+	#include <pthread.h>
-+#endif
-
- CL_NS_DEF(util)
- class CLuceneThreadIdCompare;
-
 --- a/src/shared/CLucene/config/repl_tchar.h
 +++ b/src/shared/CLucene/config/repl_tchar.h
 @@ -28,26 +28,26 @@

pkgs/development/libraries/clucene-core/pthread-include.patch

@@ -0,0 +1,14 @@
+--- a/src/shared/CLucene/LuceneThreads.h
++++ b/src/shared/CLucene/LuceneThreads.h
+@@ -7,6 +7,9 @@
+ #ifndef _LuceneThreads_h
+ #define  _LuceneThreads_h
+
++#if defined(_CL_HAVE_PTHREAD)
++	#include <pthread.h>
++#endif
+
+ CL_NS_DEF(util)
+ class CLuceneThreadIdCompare;
+
+