Distributions packaging dtc may need to set extra flags. Currently when they do that it overrides the ones set by the makefile. This is particularly problematic when compiling without yaml, as the yaml detection is ignored. ld: dtc.o: in function `main': dtc.c:(.text.startup+0x718): undefined reference to `dt_to_yaml' This patch provides a EXTRA_CFLAGS variable that is added to the list of CFLAGS, and can be set on the command line when packaging. Signed-off-by: Joel Stanley <joel@xxxxxxxxx> --- I was updating the version shipped by buildroot and hit this issue. If you have other suggestions for how to resolve the issue then I am open to them. Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Makefile b/Makefile index e6b32cf1cbf5..6807669569b3 100644 --- a/Makefile +++ b/Makefile @@ -18,7 +18,7 @@ CONFIG_LOCALVERSION = CPPFLAGS = -I libfdt -I . WARNINGS = -Wall -Wpointer-arith -Wcast-qual -Wnested-externs \ -Wstrict-prototypes -Wmissing-prototypes -Wredundant-decls -Wshadow -CFLAGS = -g -Os $(SHAREDLIB_CFLAGS) -Werror $(WARNINGS) +CFLAGS = -g -Os $(SHAREDLIB_CFLAGS) -Werror $(WARNINGS) $(EXTRA_CFLAGS) BISON = bison LEX = flex -- 2.20.1
