Breaks nvidia building. Roll back for now.

Revert "configure.ac, Makefile.am: Allow setting of OpenCL location"

This reverts commit a9893d818dac53cb52c2ed06ece59195228f44d9.

Makefile.am

@@ -9,8 +9,7 @@ EXTRA_DIST	= example-cfg.json
 
 SUBDIRS		= compat
 
-INCLUDES	= $(PTHREAD_FLAGS) -fno-strict-aliasing $(JANSSON_INCLUDES) \
-		  @OPENCL_INCLUDES@
+INCLUDES	= $(PTHREAD_FLAGS) -fno-strict-aliasing $(JANSSON_INCLUDES)
 
 bin_PROGRAMS	= minerd
 

configure.ac

@@ -39,31 +39,8 @@ case $target in
     ;;
 esac
 
-dnl Figure out where OpenCL is, either passed or system-wide
-AC_ARG_WITH([opencl-libdir],
-	[AC_HELP_STRING([--with-opencl-libdir],[specify OpenCL library])],
-	[with_opencl_lib=$withval],
-	[with_opencl_lib="auto"])
-if test "x$with_opencl_lib" = xauto; then
-	AC_CHECK_LIB([OpenCL], [OpenCL], [OPENCL_LIBS="-lOpenCL"], AC_MSG_ERROR([OpenCL library could not be found]))
-else
-	OPENCL_LIBS="$with_opencl_lib/libOpenCL.so"
-fi
-OPENCL_INCLUDES=""
-AC_ARG_WITH([opencl-inc],
-	[AC_HELP_STRING([--with-opencl-inc],[specify OpenCL include paths])],
-	[with_opencl_inc=$withval],
-	[with_opencl_inc="auto"])
-if test "x$with_opencl_inc" = xauto; then
-	AC_CHECK_HEADERS(CL/cl.h, [found="yes"])
-	AC_CHECK_HEADERS(OpenCL/opencl.h, [found="yes"])
-	if test "x$found" = x; then
-		AC_MSG_ERROR([OpenCL headers could not be found])
-	fi
-else
-	OPENCL_INCLUDES="-I$with_opencl_inc"
-fi
 
+AC_CHECK_LIB(OpenCL, clSetKernelArg, OPENCL_LIBS=-lOpenCL)
 AC_CHECK_LIB(jansson, json_loads, request_jansson=false, request_jansson=true)
 AC_CHECK_LIB(pthread, pthread_create, PTHREAD_LIBS=-lpthread)
 
@@ -120,7 +97,6 @@ LIBCURL_CHECK_CONFIG(, 7.10.1, ,
   [AC_MSG_ERROR([Missing required libcurl >= 7.10.1])])
 
 AC_SUBST(OPENCL_LIBS)
-AC_SUBST(OPENCL_INCLUDES)
 AC_SUBST(JANSSON_LIBS)
 AC_SUBST(PTHREAD_FLAGS)
 AC_SUBST(PTHREAD_LIBS)