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-rw-r--r--Makefile5
1 files changed, 5 insertions, 0 deletions
diff --git a/Makefile b/Makefile
index abb49bf8596..2b1e37da2bb 100644
--- a/Makefile
+++ b/Makefile
@@ -102,6 +102,10 @@ ifeq ("$(origin O)", "command line")
KBUILD_OUTPUT := $(O)
endif
+ifeq ("$(origin W)", "command line")
+ export KBUILD_ENABLE_EXTRA_GCC_CHECKS := 1
+endif
+
# That's our default target when none is given on the command line
PHONY := _all
_all:
@@ -1262,6 +1266,7 @@ help:
@echo ' make O=dir [targets] Locate all output files in "dir", including .config'
@echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)'
@echo ' make C=2 [targets] Force check of all c source with $$CHECK'
+ @echo ' make W=1 [targets] Enable extra gcc checks'
@echo ''
@echo 'Execute "make" or "make all" to build all targets marked with [*] '
@echo 'For further info see the ./README file'