Added fix for latest mono when using ncurses 6.1

2 files changed, 110 insertions, 0 deletions

diff --git a/dev-lang/mono/files/mono-5.10.0.179-ncurses61.patch b/dev-lang/mono/files/mono-5.10.0.179-ncurses61.patch
new file mode 100644
index 0000000..93a1f8f
--- /dev/null
+++ b/dev-lang/mono/files/mono-5.10.0.179-ncurses61.patch
@@ -0,0 +1,106 @@
+diff -Naur mono-5.10.0.179.orig/mcs/class/corlib/System/TermInfoReader.cs mono-5.10.0.179/mcs/class/corlib/System/TermInfoReader.cs
+--- mono-5.10.0.179.orig/mcs/class/corlib/System/TermInfoReader.cs	2018-03-19 07:46:31.000000000 +0000
++++ mono-5.10.0.179/mcs/class/corlib/System/TermInfoReader.cs	2018-03-25 20:57:57.721279733 +0100
+@@ -72,16 +72,16 @@
+ 	//
+ 
+ 	class TermInfoReader {
+-		//short nameSize;
+-		short boolSize;
+-		short numSize;
+-		short strOffsets;
+-		//short strSize;
++		int boolSize;
++		int numSize;
++		int strOffsets;
+ 
+ 		//string [] names; // Last one is the description
+ 		byte [] buffer;
+ 		int booleansOffset;
+ 		//string term;
++		
++		int intOffset;
+ 
+ 		public TermInfoReader (string term, string filename)
+ 		{
+@@ -114,12 +114,21 @@
+ //			get { return term; }
+ //		}
+ 
++		void DetermineVersion (short magic)
++		{
++			if (magic == 0x11a)
++				intOffset = 2;
++			else if (magic == 0x21e)
++				intOffset = 4;
++			else
++				throw new Exception (String.Format ("Magic number is unexpected: {0}", magic));
++		}
++
+ 		void ReadHeader (byte [] buffer, ref int position)
+ 		{
+ 			short magic = GetInt16 (buffer, position);
+ 			position += 2;
+-			if (magic != 282)
+-				throw new Exception (String.Format ("Magic number is wrong: {0}", magic));
++			DetermineVersion (magic);
+ 			
+ 			/*nameSize =*/ GetInt16 (buffer, position);
+ 			position += 2;
+@@ -161,8 +170,8 @@
+ 			if ((offset % 2) == 1)
+ 				offset++;
+ 
+-			offset += ((int) number) * 2;
+-			return GetInt16 (buffer, offset);
++			offset += ((int) number) * intOffset;
++			return GetInteger (buffer, offset);
+ 		}
+ 
+ 		public string Get (TermInfoStrings tstr)
+@@ -175,7 +184,7 @@
+ 			if ((offset % 2) == 1)
+ 				offset++;
+ 
+-			offset += numSize * 2;
++			offset += numSize * intOffset;
+ 			int off2 = GetInt16 (buffer, offset + (int) tstr * 2);
+ 			if (off2 == -1)
+ 				return null;
+@@ -193,7 +202,7 @@
+ 			if ((offset % 2) == 1)
+ 				offset++;
+ 
+-			offset += numSize * 2;
++			offset += numSize * intOffset;
+ 			int off2 = GetInt16 (buffer, offset + (int) tstr * 2);
+ 			if (off2 == -1)
+ 				return null;
+@@ -211,6 +220,27 @@
+ 			return (short) (uno + dos * 256);
+ 		}
+ 
++		int GetInt32 (byte [] buffer, int offset)
++		{
++			int b1 = (int) buffer [offset];
++			int b2 = (int) buffer [offset + 1];
++			int b3 = (int) buffer [offset + 2];
++			int b4 = (int) buffer [offset + 3];
++			if (b1 == 255 && b2 == 255 && b3 == 255 && b4 == 255)
++				return -1;
++
++			return b1 + b2 << 8 + b3 << 16 + b4 << 24;
++		}
++
++		int GetInteger (byte [] buffer, int offset)
++		{
++			if (intOffset == 2)
++				return GetInt16 (buffer, offset);
++			else
++				// intOffset == 4
++				return GetInt32 (buffer, offset);
++		}
++
+ 		string GetString (byte [] buffer, int offset)
+ 		{
+ 			int length = 0;
diff --git a/dev-lang/mono/mono-5.10.0.179.ebuild b/dev-lang/mono/mono-5.10.0.179.ebuild
index f25dd8d..f709724 100644
--- a/dev-lang/mono/mono-5.10.0.179.ebuild
+++ b/dev-lang/mono/mono-5.10.0.179.ebuild
@@ -32,8 +32,12 @@ DEPEND="${COMMONDEPEND}
 	!dev-lang/mono-basic
 "
 
+# Patch added for ncurses 6.1
+# https://github.com/mono/mono/issues/6752
+
 PATCHES=(
 	"${FILESDIR}"/${PN}-5.0.1.1-x86_32.patch
+	"${FILESDIR}"/${PN}-5.10.0.179-ncurses61.patch
 )
 
 #S="${WORKDIR}/${PN}-$(get_version_component_range 1-3)"