autoconf: fix build out of tree

so that the following works:

git clone git@github.com:ceph/ceph.git
cd ceph
./autogen.sh
mkdir ../build
cd ../build
../ceph/configure --with-radosgw
make check

Signed-off-by: Loic Dachary <loic@dachary.org>

diff --git a/src/Makefile.am b/src/Makefile.am
index 5e745a0573f08a6cad1b4abe735bd7da18b89bf3..e09941ed8f357d8bd97f65b4a1d53707c1642b34 100644 (file)
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -300,7 +300,7 @@ ceph: ceph.in ./ceph_ver.h Makefile
                sed -e 's/#define \(.*VER\) /\1=/' >>$@.tmp
        grep "#define CEPH_GIT_VER" ./ceph_ver.h | \
          sed -e 's/#define \(.*VER\) /\1=/' -e 's/=\(.*\)$$/="\1"/' >>$@.tmp
-       cat $@.in >>$@.tmp
+       cat $(srcdir)/$@.in >>$@.tmp
        chmod a+x $@.tmp
        chmod a-w $@.tmp
        mv $@.tmp $@