dev-cpp/vexcl: depend on clhpp

Closes: https://bugs.gentoo.org/843878
Signed-off-by: Alessandro Barbieri <lssndrbarbieri@gmail.com>

dev-cpp/vexcl/metadata.xml

@@ -16,7 +16,6 @@
 	</upstream>
 	<use>
 		<flag name="amdsi">Implement workaround for AMD SI GPUs</flag>
-		<flag name="clhpp">Install the OpenCL C++ header provided by VexCL</flag>
 		<!--<flag name="clogs">Use clogs algorithms</flag>-->
 		<flag name="backend-compute">Use Boost.Compute algorithms</flag>
 		<!--<flag name="backend-cuda">Use CUDA as backend</flag>-->

dev-cpp/vexcl/vexcl-1.4.3-r1.ebuild

@@ -26,10 +26,11 @@ IUSE_BACKEND="
 	+backend-opencl
 "
 #	backend-cuda
-IUSE="${IUSE_BACKEND} amdsi clhpp examples test" #clogs
+IUSE="${IUSE_BACKEND} amdsi examples test" #clogs
 
 RDEPEND="
 	dev-libs/boost:=
+	dev-libs/clhpp
 	backend-jit? ( virtual/opencl )
 	backend-opencl? ( virtual/opencl )
 "
@@ -53,12 +54,12 @@ src_configure() {
 
 	local mycmakeargs=(
 		-DBoost_USE_STATIC_LIBS=OFF
-		-DVEXCL_BUILD_EXAMPLES=OFF
+		-DVEXCL_INSTALL_CL_HPP=OFF
 
 		-DVEXCL_AMD_SI_WORKAROUND=$(usex amdsi)
 		-DVEXCL_BACKEND="${backend}"
+		-DVEXCL_BUILD_EXAMPLES=$(usex examples)
 		-DVEXCL_BUILD_TESTS=$(usex test)
-		-DVEXCL_INSTALL_CL_HPP=$(usex clhpp)
 	)
 #		-DVEXCL_CLOGS=$(usex clogs)