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@@ -785,14 +785,40 @@ AC_DEFUN([STARPU_LOOK_FOR_OPENCL],
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])
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if test x$enable_opencl = xyes -o x$enable_opencl = xmaybe; then
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- STARPU_LOOK_FOR_OPENCL()
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- # in case OpenCL was explicitely required, but is not available, this is an error
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- if test x$enable_opencl = xyes -a x$have_valid_opencl = xno; then
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- AC_MSG_ERROR([cannot find OpenCL])
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- fi
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+ case $target in
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+ *-*-darwin*)
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+ AC_MSG_CHECKING(whether OpenCL is available)
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- # now we enable OpenCL if and only if a proper setup is available
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- enable_opencl=$have_valid_opencl
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+ SAVED_LIBS=$LIBS
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+ LIBS="$LIBS -framework OpenCL"
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+ AC_LINK_IFELSE(
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+ [AC_LANG_PROGRAM([[
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+ #ifdef __APPLE_CC__
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+ #include <OpenCL/opencl.h>
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+ #else
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+ #include <CL/cl.h>
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+ #endif
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+ ]],
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+ [[return clSetKernelArg(0, 0, 0, 0); ]])],
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+ [AC_MSG_RESULT(yes)
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+ enable_opencl=yes
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+ have_valid_opencl=yes
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+ STARPU_OPENCL_CPPFLAGS=
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+ STARPU_OPENCL_LDFLAGS="-framework OpenCL"],
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+ [AC_MSG_RESULT(no)
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+ enable_opencl=no])
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+ LIBS=$SAVED_LIBS
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+ ;;
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+ *)
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+ STARPU_LOOK_FOR_OPENCL()
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+ # in case OpenCL was explicitely required, but is not available, this is an error
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+ if test x$enable_opencl = xyes -a x$have_valid_opencl = xno; then
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+ AC_MSG_ERROR([cannot find OpenCL])
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+ fi
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+ # now we enable OpenCL if and only if a proper setup is available
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+ enable_opencl=$have_valid_opencl
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+ ;;
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+ esac
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fi
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AC_MSG_CHECKING(whether OpenCL should be used)
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