build: fix testing of augeas files in VPATH builds

Without this fix, a VPATH build (such as used by ./autobuild.sh)
fails with messages like:

make[3]: Entering directory `/home/remote/eblake/libvirt-tmp2/build/daemon'
../../build-aux/augeas-gentest.pl libvirtd.conf ../../daemon/test_libvirtd.aug.in test_libvirtd.aug
cannot read libvirtd.conf: No such file or directory at ../../build-aux/augeas-gentest.pl line 38.

Since the test files are not part of the tarball, we can generate
them into the build dir, but rather than create a subdirectory
just for the test file, it is easier to test them directly in
libvirt.git/src.

* daemon/Makefile.am (AUG_GENTEST): Factor out definition.
(test_libvirtd.aug): Look for correct file.
* src/Makefile.am (AUG_GENTEST): Use $(PERL).
(qemu/test_libvirtd_qemu.aug, lxc/test_libvirtd_lxc.aug)
(locking/test_libvirt_sanlock.aug): Rename to avoid subdirectories.
(check-augeas-qemu, check-augeas-lxc, check-augeas-sanlock): Reflect
location of built tests.
* configure.ac (PERL): Substitute perl.

4 files changed, 31 insertions, 25 deletions

diff --git a/.gitignore b/.gitignore
index 50ff3bf7d2..d535398622 100644
--- a/.gitignore
+++ b/.gitignore
@@ -109,6 +109,7 @@
 /src/remote/*_protocol.[ch]
 /src/rpc/virkeepaliveprotocol.[ch]
 /src/rpc/virnetprotocol.[ch]
+/src/test_libvirt*.aug
 /src/util/virkeymaps.h
 /src/virt-aa-helper
 /tests/*.log
diff --git a/configure.ac b/configure.ac
index 59962c5133..7d8d26b1e6 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2243,6 +2243,9 @@ AM_CONDITIONAL([WITH_PYTHON], [test "$with_python" = "yes"])
 AC_SUBST([PYTHON_VERSION])
 AC_SUBST([PYTHON_INCLUDES])
 
+dnl Allow perl overrides
+AC_PATH_PROG([PERL], [perl])
+
 AC_ARG_ENABLE([with-test-suite],
               AC_HELP_STRING([--with-test-suite], [build test suite by default @<:@default=check@:>@]),
               [case "${withval}" in
diff --git a/daemon/Makefile.am b/daemon/Makefile.am
index daf24ea48a..08e37a9db7 100644
--- a/daemon/Makefile.am
+++ b/daemon/Makefile.am
@@ -351,12 +351,14 @@ libvirtd.service: libvirtd.service.in $(top_builddir)/config.status
 
 check-local: check-augeas
 
-test_libvirtd.aug: test_libvirtd.aug.in libvirtd.conf
-	$(AM_V_GEN)$(PERL) $(top_srcdir)/build-aux/augeas-gentest.pl libvirtd.conf $< $@
+AUG_GENTEST = $(PERL) $(top_srcdir)/build-aux/augeas-gentest.pl
+
+test_libvirtd.aug: test_libvirtd.aug.in $(srcdir)/libvirtd.conf
+	$(AM_V_GEN)$(AUG_GENTEST) $(srcdir)/libvirtd.conf $< $@
 
 check-augeas: test_libvirtd.aug
 	$(AM_V_GEN)if test -x '$(AUGPARSE)'; then \
-	  '$(AUGPARSE)' -I $(srcdir) $(srcdir)/test_libvirtd.aug; \
+	  '$(AUGPARSE)' -I $(srcdir) test_libvirtd.aug; \
 	fi
 
 
diff --git a/src/Makefile.am b/src/Makefile.am
index 1fde936971..d7beea6a11 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -782,8 +782,8 @@ libvirt_driver_qemu_impl_la_SOURCES = $(QEMU_DRIVER_SOURCES)
 conf_DATA += qemu/qemu.conf
 
 augeas_DATA += qemu/libvirtd_qemu.aug
-augeastest_DATA += qemu/test_libvirtd_qemu.aug
-CLEANFILES += qemu/test_libvirtd_qemu.aug
+augeastest_DATA += test_libvirtd_qemu.aug
+CLEANFILES += test_libvirtd_qemu.aug
 
 endif
 EXTRA_DIST += qemu/qemu.conf qemu/libvirtd_qemu.aug \
@@ -823,8 +823,8 @@ libvirt_driver_lxc_impl_la_SOURCES = $(LXC_DRIVER_SOURCES)
 conf_DATA += lxc/lxc.conf
 
 augeas_DATA += lxc/libvirtd_lxc.aug
-augeastest_DATA += lxc/test_libvirtd_lxc.aug
-CLEANFILES += lxc/test_libvirtd_lxc.aug
+augeastest_DATA += test_libvirtd_lxc.aug
+CLEANFILES += test_libvirtd_lxc.aug
 
 endif
 EXTRA_DIST += lxc/lxc.conf lxc/libvirtd_lxc.aug lxc/test_libvirtd_lxc.aug.in
@@ -1119,41 +1119,41 @@ check-local: check-augeas
 
 check-augeas: check-augeas-qemu check-augeas-lxc check-augeas-sanlock
 
-AUG_GENTEST = $(top_srcdir)/build-aux/augeas-gentest.pl
+AUG_GENTEST = $(PERL) $(top_srcdir)/build-aux/augeas-gentest.pl
 
 if WITH_QEMU
-qemu/test_libvirtd_qemu.aug: qemu/test_libvirtd_qemu.aug.in qemu/qemu.conf $(AUG_GENTEST)
-	$(AM_V_GEN)$(AUG_GENTEST) qemu/qemu.conf $< $@
+test_libvirtd_qemu.aug: qemu/test_libvirtd_qemu.aug.in \
+		$(srcdir)/qemu/qemu.conf $(AUG_GENTEST)
+	$(AUG_GENTEST) $(srcdir)/qemu/qemu.conf $< $@
 
-check-augeas-qemu: qemu/test_libvirtd_qemu.aug
+check-augeas-qemu: test_libvirtd_qemu.aug
 	$(AM_V_GEN)if test -x '$(AUGPARSE)'; then \
-	    '$(AUGPARSE)' -I $(srcdir)/qemu \
-	    $(srcdir)/qemu/test_libvirtd_qemu.aug; \
+	    '$(AUGPARSE)' -I $(srcdir)/qemu test_libvirtd_qemu.aug; \
 	fi
 else
 check-augeas-qemu:
 endif
 
 if WITH_LXC
-lxc/test_libvirtd_lxc.aug: lxc/test_libvirtd_lxc.aug.in lxc/lxc.conf $(AUG_GENTEST)
-	$(AM_V_GEN)$(AUG_GENTEST) lxc/lxc.conf $< $@
+test_libvirtd_lxc.aug: lxc/test_libvirtd_lxc.aug.in \
+		$(srcdir)/lxc/lxc.conf $(AUG_GENTEST)
+	$(AUG_GENTEST) $(srcdir)/lxc/lxc.conf $< $@
 
-check-augeas-lxc: lxc/test_libvirtd_lxc.aug
+check-augeas-lxc: test_libvirtd_lxc.aug
 	$(AM_V_GEN)if test -x '$(AUGPARSE)'; then \
-	    '$(AUGPARSE)' -I $(srcdir)/lxc \
-	    $(srcdir)/lxc/test_libvirtd_lxc.aug; \
+	    '$(AUGPARSE)' -I $(srcdir)/lxc test_libvirtd_lxc.aug; \
 	fi
 else
 check-augeas-lxc:
 endif
 
-locking/test_libvirt_sanlock.aug: locking/test_libvirt_sanlock.aug.in locking/qemu-sanlock.conf $(AUG_GENTEST)
-	$(AM_V_GEN)$(AUG_GENTEST) locking/qemu-sanlock.conf $< $@
+test_libvirt_sanlock.aug: locking/test_libvirt_sanlock.aug.in \
+		locking/qemu-sanlock.conf $(AUG_GENTEST)
+	$(AUG_GENTEST) locking/qemu-sanlock.conf $< $@
 
-check-augeas-sanlock: locking/test_libvirt_sanlock.aug
+check-augeas-sanlock: test_libvirt_sanlock.aug
 	$(AM_V_GEN)if test -x '$(AUGPARSE)'; then \
-	    '$(AUGPARSE)' -I $(srcdir)/locking \
-	    $(srcdir)/locking/test_libvirt_sanlock.aug; \
+	    '$(AUGPARSE)' -I $(srcdir)/locking test_libvirt_sanlock.aug; \
 	fi
 
 #
@@ -1357,8 +1357,8 @@ sanlock_la_LIBADD = -lsanlock_client \
 		../gnulib/lib/libgnu.la
 
 augeas_DATA += locking/libvirt_sanlock.aug
-augeastest_DATA += locking/test_libvirt_sanlock.aug
-CLEANFILES += locking/test_libvirt_sanlock.aug
+augeastest_DATA += test_libvirt_sanlock.aug
+CLEANFILES += test_libvirt_sanlock.aug
 
 $(builddir)/locking/%-sanlock.conf: $(srcdir)/locking/sanlock.conf
 	$(AM_V_GEN)$(MKDIR_P) locking ; \