On Wed, 24 Jul 2019 15:13:49 -0400 Steven Rostedt <rostedt@xxxxxxxxxxx> wrote: > [ Patrick, I don't have udis86 on my machines, can you test to see if > this will include it if you do not set NO_UDIS86? ] > > As we need to update both LDFLAGS and CFLAGS, move the test to see if > udisc86 is installed to a variable, and then set NO_UDIS86 if it is > not found. This way we do not need to test if it exists twice, nor > have LDFLAGS set unconditionally. > > Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=204277 > > Reported-by: howaboutsynergy@xxxxx > Signed-off-by: Steven Rostedt (VMware) <rostedt@xxxxxxxxxxx> > --- > diff --git a/Makefile b/Makefile > index 0aa98517..e98535ea 100644 > --- a/Makefile > +++ b/Makefile > @@ -136,9 +136,14 @@ export NO_PYTHON > test-build = $(if $(shell sh -c 'echo "$(1)" | \ > $(CC) -o /dev/null -c -x c - > /dev/null 2>&1 && echo y'), > $2) > +UDIS86_AVAILABLE := $(call test-build,\#include <udis86.h>, y) > +ifneq ($(UDIS86_AVAILABLE), y) The value of UDIS86_AVAILABLE ends up having whitespace, so this line always fails. If you change it to the line below, it works. ifneq ($(strip $(UDIS86_AVAILABLE)), y) > +NO_UDIS86 := 1 > +endif > + > ifndef NO_UDIS86 > # have udis86 disassembler library? > -udis86-flags := $(call test-build,\#include <udis86.h>,-DHAVE_UDIS86 > -ludis86) +udis86-flags := -DHAVE_UDIS86 -ludis86 > udis86-ldflags := -ludis86 > endif # NO_UDIS86 >
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