Re: [libvirt] [PATCH] Makefile: Fix parallel build after Xen-xl parser introduction
Michal Privoznik wrote:
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(a)redhat.com>
---
I'm not fully satisfied with this patch yet. I mean, for some
reason it creates 'src/.h' file, but hey - it makes parallel
build work again. Any brighter idea appreciated.
Interesting. I don't see the file using your patch. What version of
automake? I'm using the rather old 1.13.
src/Makefile.am | 36 +++++++++++++++++++-----------------
1 file changed, 19 insertions(+), 17 deletions(-)
diff --git a/src/Makefile.am b/src/Makefile.am
index c6d736e..7619cf0 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -1000,23 +1000,6 @@ CPU_SOURCES = \
VMX_SOURCES = \
vmx/vmx.c vmx/vmx.h
-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
-# 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
-
-XENXLDISKPARSER_SOURCES = xenconfig/xen_xl_disk.l
-
-XENCONFIG_SOURCES = \
- xenconfig/xenxs_private.h \
- xenconfig/xen_common.c xenconfig/xen_common.h \
- xenconfig/xen_sxpr.c xenconfig/xen_sxpr.h \
- xenconfig/xen_xm.c xenconfig/xen_xm.h \
- xenconfig/xen_xl.c xenconfig/xen_xl.h \
- xenconfig/xen_xl_disk.h
-
pkgdata_DATA = cpu/cpu_map.xml
EXTRA_DIST += $(pkgdata_DATA)
@@ -1078,6 +1061,25 @@ libvirt_xenxldiskparser_la_CFLAGS = \
libvirt_xenxldiskparser_la_SOURCES = \
$(XENXLDISKPARSER_SOURCES)
+AM_LFLAGS = -Pxl_disk_ --header-file=../$*.h
+XENXLDISKPARSER_GENERATED = xenconfig/xen_xl_disk.c xenconfig/xen_xl_disk.h
+BUILT_SOURCES += $(XENXLDISKPARSER_GENERATED)
+EXTRA_DIST += $(XENXLDISKPARSER_GENERATED)
+MAINTAINERCLEANFILES += $(XENXLDISKPARSER_GENERATED)
+
+XENXLDISKPARSER_SOURCES = xenconfig/xen_xl_disk.l
+
+$(XENXLDISKPARSER_GENERATED): $(XENXLDISKPARSER_SOURCES)
+ $(SHELL) $(YLWRAP) $< lex.xl_disk_.c $@ -- $(LEXCOMPILE)
Answering Daniel's question about the expansion of AM_LFLAGS, on my
system the whole ylwrap invocation expands to
/bin/sh ../build-aux/ylwrap xenconfig/xen_xl_disk.l lex.xl_disk_.c
xenconfig/xen_xl_disk.c -- flex -Pxl_disk_
--header-file=../xenconfig/xen_xl_disk.h
Regards,
Jim
+
+XENCONFIG_SOURCES = \
+ xenconfig/xenxs_private.h \
+ xenconfig/xen_common.c xenconfig/xen_common.h \
+ xenconfig/xen_sxpr.c xenconfig/xen_sxpr.h \
+ xenconfig/xen_xm.c xenconfig/xen_xm.h \
+ xenconfig/xen_xl.c xenconfig/xen_xl.h \
+ xenconfig/xen_xl_disk_i.h
+
noinst_LTLIBRARIES += libvirt_xenconfig.la
libvirt_la_BUILT_LIBADD += libvirt_xenconfig.la
libvirt_xenconfig_la_CFLAGS = \