gpm: sets D equal to DESTDIR instead of ROOT in do_install

This corrects a gpm install failure due to ROOT being used instead of
DESTDIR, resulting in DESTDIR being undefined.

Upstream-Status: Inappropriate (distribution/packaging fix)

Signed-off-by: Stephen Arnold <stephen.arnold42@gmail.com>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>

meta-oe/recipes-support/gpm/gpm_1.99.7.bb

@@ -40,7 +40,7 @@ CFLAGS += "-Wno-extra -Wno-error=unused-but-set-parameter -Wno-error=unused-but-
 CFLAGS += "-Wno-error=int-to-pointer-cast -Wno-error"
 
 do_install () {
-    oe_runmake 'ROOT=${D}' install
+    oe_runmake 'DESTDIR=${D}' install
     install -m 0644 src/headers/gpm.h ${D}${includedir}
     install -d ${D}/${sysconfdir}/init.d
     install -m 0755 ${WORKDIR}/init ${D}/${sysconfdir}/init.d/gpm