patch 7.4.976
Problem:    When compiling Vim for MSYS2 (linked with msys-2.0.dll), the Win32
            clipboard is not enabled.
Solution:   Recognize MSYS like CYGWIN. (Ken Takata)
diff --git a/src/auto/configure b/src/auto/configure
index 0564b9f..7e1d76d 100755
--- a/src/auto/configure
+++ b/src/auto/configure
@@ -9501,10 +9501,10 @@
 
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for CYGWIN environment" >&5
-$as_echo_n "checking for CYGWIN environment... " >&6; }
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for CYGWIN or MSYS environment" >&5
+$as_echo_n "checking for CYGWIN or MSYS environment... " >&6; }
 case `uname` in
-    CYGWIN*)    CYGWIN=yes; { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+    CYGWIN*|MSYS*)    CYGWIN=yes; { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
                 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for CYGWIN clipboard support" >&5
 $as_echo_n "checking for CYGWIN clipboard support... " >&6; }
diff --git a/src/configure.in b/src/configure.in
index 3934f88..7b901d8 100644
--- a/src/configure.in
+++ b/src/configure.in
@@ -2792,9 +2792,9 @@
 dnl ---------------------------------------------------------------------------
 
 dnl Check for Cygwin, which needs an extra source file if not using X11
-AC_MSG_CHECKING(for CYGWIN environment)
+AC_MSG_CHECKING(for CYGWIN or MSYS environment)
 case `uname` in
-    CYGWIN*)    CYGWIN=yes; AC_MSG_RESULT(yes)
+    CYGWIN*|MSYS*)    CYGWIN=yes; AC_MSG_RESULT(yes)
                 AC_MSG_CHECKING(for CYGWIN clipboard support)
                 if test "x$with_x" = "xno" ; then
                   OS_EXTRA_SRC=winclip.c; OS_EXTRA_OBJ=objects/winclip.o
diff --git a/src/version.c b/src/version.c
index f7a4a20..e034d45 100644
--- a/src/version.c
+++ b/src/version.c
@@ -742,6 +742,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    976,
+/**/
     975,
 /**/
     974,