fpc: link against libiconv (#7799)

dev-lang/fpc/patches/fpc-3.2.2.patchset

@@ -0,0 +1,38 @@
+From b26e59fd8a486ede17adfde5f63d6a8939abaf60 Mon Sep 17 00:00:00 2001
+From: hfsfox <darkkitsunezx128k2309@gmail.com>
+Date: Tue, 24 Jan 2023 02:21:42 +0200
+Subject: libiconv and libGLU fix
+
+
+diff --git a/fpcsrc/packages/opengl/src/glu.pp b/fpcsrc/packages/opengl/src/glu.pp
+index 3d79616..534a3da 100644
+--- a/fpcsrc/packages/opengl/src/glu.pp
++++ b/fpcsrc/packages/opengl/src/glu.pp
+@@ -73,8 +73,10 @@ Const
+   GLU_Lib = 'opengl.dll';
+ {$elseif defined(darwin)}
+   GLU_LIB =  '/System/Library/Frameworks/OpenGL.framework/Libraries/libGLU.dylib';
+-{$elseif defined(haiku) or defined(OpenBSD)}
++{$elseif defined(OpenBSD)}
+   GLU_LIB = 'libGLU.so';
++{ $elseif defined(haiku)}
++  GLU_LIB = 'libGLU.so.1';
+ {$elseif defined(MorphOS)}
+   GLU_LIB = 'tinygl.library';
+ {$else}
+diff --git a/fpcsrc/rtl/unix/cwstring.pp b/fpcsrc/rtl/unix/cwstring.pp
+index 688bc55..ba832af 100644
+--- a/fpcsrc/rtl/unix/cwstring.pp
++++ b/fpcsrc/rtl/unix/cwstring.pp
+@@ -64,7 +64,7 @@ Const
+     libprefix='lib';
+ {$else}
+   {$ifdef haiku}
+-    libiconvname='textencoding';  // is in libtextencoding under Haiku
++    libiconvname='libiconv';  // is in libtextencoding under Haiku
+     libprefix='lib';
+   {$else}
+     {$if defined(darwin) or defined(aix)}
+-- 
+2.37.3
+