We don't set any, but we should use them if they are passed in the
environment. On a Fedora Rawhide package build, annocheck
(https://sourceware.org/annobin/) reports:

  Hardened: /usr/bin/passt: FAIL: bind-now test because not linked with -Wl,-z,now

...despite the build system exporting -Wl,-z,now in LDFLAGS.

Signed-off-by: Stefano Brivio <sbrivio(a)redhat.com>
---
 Makefile | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/Makefile b/Makefile
index 26e64d5..644a541 100644
--- a/Makefile
+++ b/Makefile
@@ -105,11 +105,11 @@ seccomp.h: $(PASST_SRCS) $(PASST_HEADERS)
 	@ EXTRA_SYSCALLS=$(EXTRA_SYSCALLS) ./seccomp.sh $^
 
 passt: $(PASST_SRCS) $(PASST_HEADERS) seccomp.h
-	$(CC) $(CFLAGS) $(PASST_SRCS) -o passt
+	$(CC) $(CFLAGS) $(PASST_SRCS) -o passt $(LDFLAGS)
 
 passt.avx2: CFLAGS += -Ofast -mavx2 -ftree-vectorize -funroll-loops
 passt.avx2: $(PASST_SRCS) $(PASST_HEADERS) seccomp.h
-	$(CC) $(filter-out -O2,$(CFLAGS)) $(PASST_SRCS) -o passt.avx2
+	$(CC) $(filter-out -O2,$(CFLAGS)) $(PASST_SRCS) -o passt.avx2 $(LDFLAGS)
 
 passt.avx2: passt
 
@@ -117,7 +117,7 @@ pasta.avx2 pasta.1 pasta: pasta%: passt%
 	ln -s $< $@
 
 qrap: $(QRAP_SRCS) passt.h
-	$(CC) $(CFLAGS) $(QRAP_SRCS) -o qrap
+	$(CC) $(CFLAGS) $(QRAP_SRCS) -o qrap $(LDFLAGS)
 
 valgrind: EXTRA_SYSCALLS="rt_sigprocmask rt_sigtimedwait rt_sigaction \
 			  getpid gettid kill clock_gettime mmap munmap open \
-- 
2.35.1