build: avoid non-srcdir installation failure (apibuild.py)

* docs/Makefile.am (libvirt-api.xml): Insert missing "$(srcdir)/".
Also, remove unnecessary sub-shell.

diff --git a/docs/Makefile.am b/docs/Makefile.am
index 4df5154fb523a1509561108af40bcde76d36c6fc..8821e08d7ccea62d6d5a332c957df04fa0642afe 100644 (file)
--- a/docs/Makefile.am
+++ b/docs/Makefile.am
@@ -131,7 +131,7 @@ devhelp/index.html devhelp/libvirt.devhelp: libvirt-api.xml $(devhelpxsl)
 libvirt-api.xml libvirt-refs.xml: apibuild.py \
                $(srcdir)/../include/libvirt/*.h \
                $(srcdir)/../src/libvirt.c $(srcdir)/../src/util/virterror.c
-       -(./apibuild.py)
+       -$(srcdir)/apibuild.py
 
 clean-local:
        rm -f *~ *.bak *.hierarchy *.signals *-unused.txt