[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH] fix libxl build issues
Building in a tree with read-only source files failed because the flex/ bison generated files are left in place. All of the source files (instead of all of the object files) were depending on libxl.h (in particular forcing the needless re-generation of the flex/bison generated files). For _libxl_types.[ch] a single non-pattern rule was used. For non- pattern rules with multiple targets, other than for pattern ones, the body gets executed once for each target, causing problems when building with -j<n>, <n> >= 2. Convert this rule to a pattern one. The flex/bison generated headers pointlessly depended on the corresponding source files. Use multiple-target pattern rules instead. It would also have been nice if the minimal flex/bison versions needed to successfully build libxl were documented: neither flex 2.5.31 nor bison 2.1 (as found e.g. on SLE10) is sufficient. Signed-off-by: Jan Beulich <jbeulich@xxxxxxxxxx> --- 2010-09-20.orig/tools/libxl/Makefile 2010-09-20 14:23:28.000000000 +0200 +++ 2010-09-20/tools/libxl/Makefile 2010-09-20 14:24:20.000000000 +0200 @@ -42,18 +42,15 @@ XL_OBJS = xl.o xl_cmdimpl.o xl_cmdtable. all: $(CLIENTS) libxenlight.so libxenlight.a libxlutil.so libxlutil.a \ $(AUTOSRCS) $(AUTOINCS) -$(AUTOINCS): $(AUTOSRCS) - -#%_y.h: %_y.c -#%_l.h: %_l.c - $(LIBXLU_OBJS): $(AUTOINCS) -%.c: %.y - $(BISON) --output=$@ $< - -%.c: %.l - $(FLEX) --header-file=$*.h --outfile=$@ $< +%.c %.h: %.y + @rm -f $*.[ch] + $(BISON) --output=$*.c $< + +%.c %.h: %.l + @rm -f $*.[ch] + $(FLEX) --header-file=$*.h --outfile=$*.c $< genpath-target = $(call buildmakevars2file,_libxl_paths.h) $(eval $(genpath-target)) @@ -66,12 +63,12 @@ libxl_paths.c: _libxl_paths.h libxl.h: _libxl_types.h -$(LIBXL_OBJS:%.o=%.c) $(LIBXLU_OBJS:%.o=%.c) $(XL_OBJS:%.o=%.c): libxl.h +$(LIBXL_OBJS) $(LIBXLU_OBJS) $(XL_OBJS): libxl.h -_libxl_types.h _libxl_types.c: libxl.idl gentypes.py libxltypes.py - $(PYTHON) gentypes.py libxl.idl __libxl_types.h __libxl_types.c - mv __libxl_types.h _libxl_types.h - mv __libxl_types.c _libxl_types.c +_libxl_%.h _libxl_%.c: libxl.idl gen%.py libxl%.py + $(PYTHON) gen$*.py libxl.idl __libxl_$*.h __libxl_$*.c + mv __libxl_$*.h _libxl_$*.h + mv __libxl_$*.c _libxl_$*.c libxenlight.so: libxenlight.so.$(MAJOR) ln -sf $< $@ Attachment:
libxlu-cfg-build.patch _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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