sci-libs/caffe2: fix when PORTAGE_TMPDIR is not the default value

Closes: https://bugs.gentoo.org/946201
Signed-off-by: Alfredo Tupone <tupone@gentoo.org>

sci-libs/caffe2/caffe2-2.5.1-r5.ebuild

@@ -119,6 +119,7 @@ PATCHES=(
 	"${FILESDIR}"/${P}-gentoo.patch
 	"${FILESDIR}"/${PN}-2.4.0-cpp-httplib.patch
 	"${FILESDIR}"/${P}-glog-0.6.0.patch
+	"${FILESDIR}"/${P}-newfix-functorch-install.patch
 )
 
 src_prepare() {
@@ -295,9 +296,6 @@ src_install() {
 	# Used by pytorch ebuild
 	insinto "/var/lib/${PN}"
 	doins "${BUILD_DIR}"/CMakeCache.txt
-	mv "${D}${S}"/functorch/functorch.so \
-		"${D}"/var/lib/${PN}/functorch.so || die
-	rm -r "${D}"/var/tmp || die
 	dostrip -x /var/lib/${PN}/functorch.so
 
 	rm -rf python

sci-libs/caffe2/files/caffe2-2.5.1-newfix-functorch-install.patch

@@ -0,0 +1,8 @@
+--- a/functorch/CMakeLists.txt	2024-11-10 11:18:29.151992840 +0100
++++ b/functorch/CMakeLists.txt	2024-11-10 11:20:19.642389982 +0100
+@@ -42,4 +42,4 @@
+ if(NOT ${TORCH_PYTHON_LINK_FLAGS} STREQUAL "")
+   set_target_properties(${PROJECT_NAME} PROPERTIES LINK_FLAGS ${TORCH_PYTHON_LINK_FLAGS})
+ endif()
+-install(TARGETS ${PROJECT_NAME} DESTINATION "${CMAKE_CURRENT_SOURCE_DIR}")
++install(TARGETS ${PROJECT_NAME} DESTINATION "/var/lib/caffe2/")