GNUmakefile: ensure DESTDIR and bup_shared_ldflags are defined

Satisfy --warn-undefined-variables

Signed-off-by: Rob Browning <rlb@defaultvalue.org>
Tested-by: Rob Browning <rlb@defaultvalue.org>

diff --git a/GNUmakefile b/GNUmakefile
index 3e288d3f627bb844aa34d10af630c985f78b1653..f07a3b5a59a15d402cc4dd4fdffed42b0c831757 100644 (file)
--- a/GNUmakefile
+++ b/GNUmakefile
@@ -34,6 +34,7 @@ os := $(call shout,$(os),Unable to determine OS)
 
 # Satisfy --warn-undefined-variables
 CFLAGS ?=
+DESTDIR ?=
 CPPFLAGS ?=
 LDFLAGS ?=
 TARGET_ARCH ?=
@@ -43,6 +44,8 @@ bup_shared_cflags := -Wno-unused-command-line-argument $(bup_shared_cflags)
 bup_shared_cflags := -Wno-unknown-pragmas -Wsign-compare $(bup_shared_cflags)
 bup_shared_cflags := -D_FILE_OFFSET_BITS=64 $(bup_shared_cflags)
 
+bup_shared_ldflags :=
+
 soext := .so
 ifeq ($(os),CYGWIN)
   soext := .dll