src/Makefile: Fix parallel build after xen_xl_disk parser introduction

Well, the parallel build doesn't work as there are not dependencies
set correctly. When running 'make -j' I see this error:

make[2]: Entering directory '/home/zippy/work/libvirt/libvirt.git/src'
  GEN      util/virkeymaps.h
  GEN      locking/lock_protocol.h
make[2]: *** No rule to make target 'xenconfig/xen_xl_disk.h', needed by 'all'.  Stop.
make[2]: *** Waiting for unfinished jobs....
  GEN      lxc/lxc_controller_dispatch.h

The fix is to correctly set dependencies by letting make know that .c
and .h are to be generated from .l. Moreover, the section is moved
closer to the other section which uses it.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>

diff --git a/src/Makefile.am b/src/Makefile.am
index ca662c34fadb425d158374b35065f9e5c6fe872c..1031cc67250d238859930eef8291a2b36b1f58cb 100644 (file)
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -1053,12 +1053,21 @@ libvirt_vmx_la_SOURCES = $(VMX_SOURCES)
 endif WITH_VMX
 
 if WITH_XENCONFIG
-AM_LFLAGS = -Pxl_disk_ --header-file=../$*.h
-LEX_OUTPUT_ROOT = lex.xl_disk_
-BUILT_SOURCES += xenconfig/xen_xl_disk.c xenconfig/xen_xl_disk.h
+# Disable the default rule for lex files because we need to generate the
+# xen_xl_disk files into srcdir instead of builddir.
+.l.c:
+
+$(XENXLDISKPARSER_GENERATED): $(XENXLDISKPARSER_SOURCES)
+       $(AM_V_LEX) $(LEXCOMPILE) $<
+
+AM_LFLAGS = -Pxl_disk_ --header-file=$(abs_srcdir)/xenconfig/xen_xl_disk.h \
+               --outfile=$(abs_srcdir)/xenconfig/xen_xl_disk.c
+XENXLDISKPARSER_GENERATED = xenconfig/xen_xl_disk.c xenconfig/xen_xl_disk.h
+
+BUILT_SOURCES += $(XENXLDISKPARSER_GENERATED)
 # Generated header file is not implicitly added to dist
-EXTRA_DIST += xenconfig/xen_xl_disk.h
-CLEANFILES += xenconfig/xen_xl_disk.h xenconfig/xen_xl_disk.c
+EXTRA_DIST += $(XENXLDISKPARSER_GENERATED)
+MAINTAINERCLEANFILES += $(XENXLDISKPARSER_GENERATED)
 
 XENXLDISKPARSER_SOURCES = xenconfig/xen_xl_disk.l
 
@@ -1078,6 +1087,8 @@ libvirt_xenxldiskparser_la_CFLAGS = \
                -I$(top_srcdir)/src/conf $(AM_CFLAGS) -Wno-unused-parameter
 libvirt_xenxldiskparser_la_SOURCES = \
        $(XENXLDISKPARSER_SOURCES)
+libvirt_xenxldiskparser_la_DEPENDENCIES = \
+       $(XENXLDISKPARSER_GENERATED)
 
 noinst_LTLIBRARIES += libvirt_xenconfig.la
 libvirt_la_BUILT_LIBADD += libvirt_xenconfig.la