build: use lazy evaluation for NPROC to speed up metadata dump

Reduces package metadata dump time by ~10% Signed-off-by: Felix Fietkau <[email protected]>
lkiuyu · Jan 14, 2025 · dac8021 · dac8021
1 parent 3963dab
commit dac8021
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/rules.mk b/rules.mk
@@ -96,7 +96,7 @@ TARGET_SUFFIX=$(call qstrip,$(CONFIG_TARGET_SUFFIX))
 BUILD_SUFFIX:=$(call qstrip,$(CONFIG_BUILD_SUFFIX))
 SUBDIR:=$(patsubst $(TOPDIR)/%,%,${CURDIR})
 BUILD_SUBDIR:=$(patsubst $(TOPDIR)/%,%,${CURDIR})
-NPROC:=$(shell sysctl -n hw.ncpu 2>/dev/null || nproc)
+NPROC=$(shell sysctl -n hw.ncpu 2>/dev/null || nproc)
 export SHELL:=/usr/bin/env bash
 
 IS_PACKAGE_BUILD := $(if $(filter package/%,$(BUILD_SUBDIR)),1)