From: Florian Weimer <fweimer(a)redhat.com> Future compilers will not support implicit ints by default, causing the probe to always fail. Link: https://bugs.passt.top/show_bug.cgi?id=42 Signed-off-by: Stefano Brivio <sbrivio(a)redhat.com> --- I'm just posting Florian's patch here for ease of review -- I just applied this by the way. Thanks Florian for the report and for the patch! Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Makefile b/Makefile index dd222a8..080c748 100644 --- a/Makefile +++ b/Makefile @@ -101,7 +101,7 @@ ifeq ($(shell :|$(CC) -fstack-protector-strong -S -xc - -o - >/dev/null 2>&1; ec FLAGS += -fstack-protector-strong endif -C := \#define _GNU_SOURCE\n\#include <fcntl.h>\nx = FALLOC_FL_COLLAPSE_RANGE; +C := \#define _GNU_SOURCE\n\#include <fcntl.h>\nint x = FALLOC_FL_COLLAPSE_RANGE; ifeq ($(shell printf "$(C)" | $(CC) -S -xc - -o - >/dev/null 2>&1; echo $$?),0) EXTRA_SYSCALLS += fallocate endif -- 2.35.1