fix IDSDIR to make pciutils reproducible (issue #147)

modules/pciutils

@@ -11,23 +11,28 @@ pciutils_tar := pciutils-$(pciutils_version).tar.xz
 pciutils_url := https://www.kernel.org/pub/software/utils/pciutils/$(pciutils_tar)
 pciutils_hash := 64293c6ab9318c40ef262b76d87bd9097531759752bac556e50979b1e63cfe66
 
+# IDSDIR must be set to a constant during the build,
+# but not during the install to make the libpci.so.3
+# reproducible.  Otherwise the build path will be embedded
+# in the library and executables.
+
 pciutils_target := \
 	$(MAKE_JOBS) \
 	CC="$(heads_cc)"  \
 	ZLIB=no \
 	HWDB=no \
 	SHARED=yes \
+	IDSDIR=/ \
 	PREFIX=$(INSTALL) \
-	install \
 	&& \
 	$(MAKE) \
 	-C $(build)/$(pciutils_dir) \
-	$(MAKE_JOBS) \
 	CC="$(heads_cc)"  \
 	ZLIB=no \
 	HWDB=no \
 	SHARED=yes \
 	PREFIX=$(INSTALL) \
+	install \
 	install-lib \
 
 pciutils_output := \