cmake: include/cmake.mk add CMAKE_BINARY_SUBDIR to allow out of source tree builds

Some packages need out of source tree building with cmake, for example
when building kernel modules.
See an example here:
https://sourceforge.net/p/accel-ppp/code/ci/master/tree/README

Signed-off-by: Luke McKee <hojuruku@gmail.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name> [cleanup, rework]
This commit is contained in:
Luke McKee 2016-07-24 02:00:24 +07:00 committed by Felix Fietkau
parent 009d6d6024
commit eadf5fb7f8
2 changed files with 6 additions and 3 deletions

View file

@ -6,7 +6,9 @@ ifneq ($(findstring c,$(OPENWRT_VERBOSE)),)
MAKE_FLAGS+=VERBOSE=1
endif
CMAKE_SOURCE_DIR:=.
CMAKE_BINARY_DIR = $(PKG_BUILD_DIR)$(if $(CMAKE_BINARY_SUBDIR),/$(CMAKE_BINARY_SUBDIR))
CMAKE_SOURCE_DIR = $(PKG_BUILD_DIR)
MAKE_PATH = $(firstword $(CMAKE_BINARY_SUBDIR) .)
ifeq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
cmake_tool=$(TOOLCHAIN_DIR)/bin/$(1)
@ -35,7 +37,8 @@ CMAKE_HOST_FIND_ROOT_PATH:=$(STAGING_DIR)/host;$(STAGING_DIR_HOST)
CMAKE_SHARED_LDFLAGS:=-Wl,-Bsymbolic-functions
define Build/Configure/Default
(cd $(PKG_BUILD_DIR); \
mkdir -p $(CMAKE_BINARY_DIR)
(cd $(CMAKE_BINARY_DIR); \
CFLAGS="$(TARGET_CFLAGS) $(EXTRA_CFLAGS)" \
CXXFLAGS="$(TARGET_CFLAGS) $(EXTRA_CFLAGS)" \
LDFLAGS="$(TARGET_LDFLAGS) $(EXTRA_LDFLAGS)" \

View file

@ -136,7 +136,7 @@ MAKE_INSTALL_FLAGS = \
$(MAKE_FLAGS) \
DESTDIR="$(PKG_INSTALL_DIR)"
MAKE_PATH = .
MAKE_PATH ?= .
define Build/Compile/Default
+$(MAKE_VARS) \