doc: Create infodir before writing to it and prefix with DESTDIR

Signed-off-by: Martin Winter <mwinter@opensourcerouting.org>

diff --git a/doc/Makefile.am b/doc/Makefile.am
index b822a3c68518f3d3dac2871abaaa9076aca42fa9..9d2285a4485b075931652b4a39531572aa216b91 100644 (file)
--- a/doc/Makefile.am
+++ b/doc/Makefile.am
@@ -86,8 +86,9 @@ developer.html:
 
 # info target, handled by automake installation
 install-data-local: frr.info
-       gzip < user/_build/texinfo/frr.info > ${infodir}/frr.info.gz
-       install-info user/_build/texinfo/frr.info ${infodir}/dir
+       install -d ${DESTDIR}${infodir}
+       gzip < user/_build/texinfo/frr.info > ${DESTDIR}${infodir}/frr.info.gz
+       install-info user/_build/texinfo/frr.info ${DESTDIR}${infodir}/dir
 
 # include sources for shipped docs
 EXTRA_DIST = manpages/defines.rst \