diff --git a/CMakeLists.txt b/CMakeLists.txt
index 59dff41..20c2ec5 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -61,7 +61,7 @@
 # $DateTime: 2016/01/18 19:29:17 $$Author: bbarber $
 
 project(qhull)
-cmake_minimum_required(VERSION 2.6)
+cmake_minimum_required(VERSION 3.0)
 
 # Define qhull_VERSION in CMakeLists.txt, Makefile, qhull-exports.def, qhull_p-exports.def, qhull_r-exports.def, qhull-warn.pri
 set(qhull_VERSION2 "2015.2 2016/01/18")  # not used, See global.c, global_r.c, rbox.c, rbox_r.c
@@ -610,10 +610,48 @@ add_test(NAME user_eg3
 # Define install
 # ---------------------------------------
 
-install(TARGETS ${qhull_TARGETS_INSTALL}
+install(TARGETS ${qhull_TARGETS_INSTALL} EXPORT QhullTargets
         RUNTIME DESTINATION ${BIN_INSTALL_DIR}
         LIBRARY DESTINATION ${LIB_INSTALL_DIR}
-        ARCHIVE DESTINATION ${LIB_INSTALL_DIR})
+        ARCHIVE DESTINATION ${LIB_INSTALL_DIR}
+        INCLUDES DESTINATION include)
+
+include(CMakePackageConfigHelpers)
+
+write_basic_package_version_file(
+    "${CMAKE_CURRENT_BINARY_DIR}/Qhull/QhullConfigVersion.cmake"
+    VERSION ${qhull_VERSION}
+    COMPATIBILITY AnyNewerVersion
+)
+
+export(EXPORT QhullTargets
+  FILE "${CMAKE_CURRENT_BINARY_DIR}/Qhull/QhullTargets.cmake"
+  NAMESPACE Qhull::
+)
+
+configure_file(Config.cmake.in
+  "${CMAKE_CURRENT_BINARY_DIR}/Qhull/QhullConfig.cmake"
+  @ONLY
+)
+
+set(ConfigPackageLocation lib/cmake/Qhull)
+install(EXPORT QhullTargets
+  FILE
+    QhullTargets.cmake
+  NAMESPACE
+    Qhull::
+  DESTINATION
+    ${ConfigPackageLocation}
+)
+install(
+  FILES
+    "${CMAKE_CURRENT_BINARY_DIR}/Qhull/QhullConfig.cmake"
+    "${CMAKE_CURRENT_BINARY_DIR}/Qhull/QhullConfigVersion.cmake"
+  DESTINATION
+    ${ConfigPackageLocation}
+  COMPONENT
+    Devel
+)
 
 install(FILES ${libqhull_HEADERS}    DESTINATION ${INCLUDE_INSTALL_DIR}/libqhull)
 install(FILES ${libqhull_DOC}        DESTINATION ${INCLUDE_INSTALL_DIR}/libqhull)
diff --git a/Config.cmake.in b/Config.cmake.in
new file mode 100644
index 0000000..bc92bfe
--- /dev/null
+++ b/Config.cmake.in
@@ -0,0 +1,2 @@
+include("${CMAKE_CURRENT_LIST_DIR}/QhullTargets.cmake")
+
diff --git a/src/libqhull_r/user_r.h b/src/libqhull_r/user_r.h
index fc105b9..7cca65a 100644
--- a/src/libqhull_r/user_r.h
+++ b/src/libqhull_r/user_r.h
@@ -139,7 +139,7 @@ Code flags --
    REALfloat =   1      all numbers are 'float' type
              =   0      all numbers are 'double' type
 */
-#define REALfloat 0
+#define REALfloat 1
 
 #if (REALfloat == 1)
 #define realT float