Diffstat (limited to 'Makefile')
1 files changed, 6 insertions, 2 deletions
@@ -103,7 +103,7 @@ ifeq ("$(origin O)", "command line")
ifeq ("$(origin W)", "command line")
- export KBUILD_ENABLE_EXTRA_GCC_CHECKS := 1
+ export KBUILD_ENABLE_EXTRA_GCC_CHECKS := $(W)
# That's our default target when none is given on the command line
@@ -1274,7 +1274,11 @@ 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 ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where'
+ @echo ' 1: warnings which may be relevant and do not occur too often'
+ @echo ' 2: warnings which occur quite often but may still be relevant'
+ @echo ' 3: more obscure warnings, can most likely be ignored'
@echo 'Execute "make" or "make all" to build all targets marked with [*] '
@echo 'For further info see the ./README file'