--- a/rtmidi-3.0.0/configure	2017-08-31 18:53:21.000000000 -0700
+++ b/rtmidi-3.0.0/configure	2017-09-28 19:18:37.512786478 -0700
@@ -16625,7 +16625,6 @@
 # Set paths if prefix is defined
 if test "x$prefix" != "x" && test "x$prefix" != "xNONE"; then
   LIBS="$LIBS -L$prefix/lib"
-  CPPFLAGS="$CPPFLAGS -I$prefix/include/rtmidi"
 fi
 
 # For -I and -D flags
--- a/rtmidi-3.0.0/configure.ac	2017-08-31 17:10:07.000000000 -0700
+++ b/rtmidi-3.0.0/configure.ac	2017-09-28 19:19:37.515888982 -0700
@@ -77,7 +77,6 @@
 # Set paths if prefix is defined
 if test "x$prefix" != "x" && test "x$prefix" != "xNONE"; then
   LIBS="$LIBS -L$prefix/lib"
-  CPPFLAGS="$CPPFLAGS -I$prefix/include/rtmidi"
 fi
 
 # For -I and -D flags