diff options
| -rw-r--r-- | Makefile | 3 | ||||
| -rw-r--r-- | init/Kconfig | 14 |
2 files changed, 17 insertions, 0 deletions
@@ -785,6 +785,9 @@ stackp-flags-$(CONFIG_STACKPROTECTOR_STRONG) := -fstack-protector-strong KBUILD_CFLAGS += $(stackp-flags-y) +KBUILD_CFLAGS-$(CONFIG_WERROR) += -Werror +KBUILD_CFLAGS += $(KBUILD_CFLAGS-y) + ifdef CONFIG_CC_IS_CLANG KBUILD_CPPFLAGS += -Qunused-arguments # The kernel builds with '-std=gnu89' so use of GNU extensions is acceptable. diff --git a/init/Kconfig b/init/Kconfig index e708180e9a59..8cb97f141b70 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -137,6 +137,20 @@ config COMPILE_TEST here. If you are a user/distributor, say N here to exclude useless drivers to be distributed. +config WERROR + bool "Compile the kernel with warnings as errors" + default y + help + A kernel build should not cause any compiler warnings, and this + enables the '-Werror' flag to enforce that rule by default. + + However, if you have a new (or very old) compiler with odd and + unusual warnings, or you have some architecture with problems, + you may need to disable this config option in order to + successfully build the kernel. + + If in doubt, say Y. + config UAPI_HEADER_TEST bool "Compile test UAPI headers" depends on HEADERS_INSTALL && CC_CAN_LINK |