Fixed if_ruby.c for compilation without Ruby.framework

Author: splhack

src/auto/configure

@@ -7059,7 +7059,7 @@ $as_echo "$rubyhdrdir" >&6; }
 	  RUBY_LIBS="$RUBY_LIBS -L$rubylibdir"
         elif test -d "/System/Library/Frameworks/Ruby.framework"; then
                         RUBY_LIBS="-framework Ruby"
-                        RUBY_CFLAGS="-DRUBY_VERSION=$rubyversion"
+                        RUBY_CFLAGS="-DRUBY_VERSION=$rubyversion -DRUBY_FRAMEWORK"
             librubyarg=
 	fi
 

src/configure.in

@@ -1846,7 +1846,7 @@ if test "$enable_rubyinterp" = "yes" -o "$enable_rubyinterp" = "dynamic"; then
             dnl On Mac OS X it is safer to just use the -framework flag
             RUBY_LIBS="-framework Ruby"
             dnl Don't include the -I flag when -framework is set
-            RUBY_CFLAGS="-DRUBY_VERSION=$rubyversion"
+            RUBY_CFLAGS="-DRUBY_VERSION=$rubyversion -DRUBY_FRAMEWORK"
             librubyarg=
 	fi
 

src/if_ruby.c

@@ -107,13 +107,13 @@
 # define rb_num2int rb_num2int_stub
 #endif
 
-#ifdef FEAT_GUI_MACVIM
+#ifdef RUBY_FRAMEWORK
 # include <Ruby/ruby.h>
 #else
 # include <ruby.h>
 #endif
 #ifdef RUBY19_OR_LATER
-# ifdef FEAT_GUI_MACVIM
+# ifdef RUBY_FRAMEWORK
 #  include <Ruby/ruby/encoding.h>
 # else
 #  include <ruby/encoding.h>