shared-macros.mk: support for parallel builds opt-in

Marcel Telka

2023-06-26 115d4d6b1515fa8b293307262adcdb8e90fde032

shared-macros.mk: support for parallel builds opt-in

 make-rules/setup.py.mk

@@ -181,7 +181,7 @@
# where egg-info is re-generated
CLONEY_ARGS = CLONEY_MODE="copy"

COMPONENT_BUILD_CMD = $(PYTHON) setup.py --no-user-cfg build
COMPONENT_BUILD_CMD = $(PYTHON) setup.py --no-user-cfg build $(COMPONENT_BUILD_SETUP_PY_ARGS)

# build the configured source
$(BUILD_DIR)/%/.built:    $(SOURCE_DIR)/.prep

 make-rules/shared-macros.mk

@@ -418,6 +418,16 @@
CONFIGURE_32 =        $(BUILD_DIR_32)/.configured
CONFIGURE_64 =        $(BUILD_DIR_64)/.configured

# In ideal world all components should support parallel build but it is often
# not the case.  So by default we do not run parallel build and allow
# components to opt-in for parallel build by setting USE_PARALLEL_BUILD = yes
# before the shared-macros.mk file is included.
PARALLEL_JOBS ?= 8
ifeq ($(strip $(USE_PARALLEL_BUILD)),yes)
COMPONENT_BUILD_GMAKE_ARGS += -j$(PARALLEL_JOBS)
COMPONENT_BUILD_SETUP_PY_ARGS += -j$(PARALLEL_JOBS)
endif

BUILD_DIR_NO_ARCH =    $(BUILD_DIR)/$(MACH)
BUILD_DIR_32 =        $(BUILD_DIR)/$(MACH32)
BUILD_DIR_64 =        $(BUILD_DIR)/$(MACH64)