Clarify why check for XInput

[freeglut] / CMakeLists.txt

diff --git a/CMakeLists.txt b/CMakeLists.txt
index e2cf980..fc22ed6 100644 (file)
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -197,6 +197,10 @@ ENDIF()
 IF(WIN32)
     # hide insecure CRT warnings, common practice
     ADD_DEFINITIONS(-D_CRT_SECURE_NO_WARNINGS)
+    IF(MSVC)
+        SET( CMAKE_DEBUG_POSTFIX "d" )
+    ENDIF(MSVC)
+    
 ENDIF()
 
 IF(CMAKE_COMPILER_IS_GNUCC)
@@ -207,6 +211,7 @@ IF(CMAKE_COMPILER_IS_GNUCC)
   ENDIF()
 ENDIF(CMAKE_COMPILER_IS_GNUCC)
 
+INCLUDE(CheckIncludeFiles)
 IF(UNIX AND NOT ANDROID)
     FIND_PACKAGE(X11 REQUIRED)
     LIST(APPEND LIBS ${X11_LIBRARIES})
@@ -222,6 +227,11 @@ IF(UNIX AND NOT ANDROID)
         ENDIF()
         LIST(APPEND LIBS ${X11_Xxf86vm_LIB})
     ENDIF()
+    IF(X11_Xinput_FOUND)
+        # Needed for multi-touch:
+        CHECK_INCLUDE_FILES("${X11_Xinput_INCLUDE_PATH}/X11/extensions/XInput2.h" HAVE_X11_EXTENSIONS_XINPUT2_H)
+        LIST(APPEND LIBS ${X11_Xinput_LIB})
+    ENDIF()
 ENDIF()
 IF(ANDROID)
     # -landroid for ANativeWindow
@@ -229,7 +239,6 @@ IF(ANDROID)
     LIST(APPEND LIBS android log)
 ENDIF()
 
-INCLUDE(CheckIncludeFiles)
 INCLUDE(CheckFunctionExists)
 INCLUDE(CheckTypeSize)
 CHECK_INCLUDE_FILES(sys/types.h HAVE_SYS_TYPES_H)
@@ -241,9 +250,6 @@ CHECK_INCLUDE_FILES(sys/ioctl.h HAVE_SYS_IOCTL_H)
 CHECK_INCLUDE_FILES(fcntl.h    HAVE_FCNTL_H)
 CHECK_INCLUDE_FILES(errno.h    HAVE_ERRNO_H)
 CHECK_INCLUDE_FILES(usbhid.h   HAVE_USBHID_H)
-CHECK_FUNCTION_EXISTS(sinf      HAVE_SINF)
-CHECK_FUNCTION_EXISTS(cosf      HAVE_COSF)
-CHECK_FUNCTION_EXISTS(sqrtf     HAVE_SQRTF)
 CHECK_FUNCTION_EXISTS(gettimeofday HAVE_GETTIMEOFDAY)
 CHECK_FUNCTION_EXISTS(vfprintf  HAVE_VFPRINTF)
 CHECK_FUNCTION_EXISTS(_doprnt   HAVE_DOPRNT)
@@ -392,9 +398,11 @@ ADD_DEMO(Resizer         progs/demos/Resizer/Resizer.cpp)
 ADD_DEMO(multi-touch     progs/demos/multi-touch/multi-touch.c)
 ADD_DEMO(shapes          progs/demos/shapes/shapes.c)
 ADD_DEMO(smooth_opengl3  progs/demos/smooth_opengl3/smooth_opengl3.c)
-ADD_DEMO(spaceball       progs/demos/spaceball/spaceball.c
-                         progs/demos/spaceball/vmath.c
-                         progs/demos/spaceball/vmath.h)
+IF(UNIX)
+    ADD_DEMO(spaceball       progs/demos/spaceball/spaceball.c
+                             progs/demos/spaceball/vmath.c
+                             progs/demos/spaceball/vmath.h)
+ENDIF()
 ADD_DEMO(subwin          progs/demos/subwin/subwin.c)
 ADD_DEMO(timer           progs/demos/timer/timer.c)