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Move generation of config-host.h to Makefile from configure

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Use timestamp based appreach to avoid not needed recompilation.
Add it to rules.mak

Many thanks to Paolo Bonzini for helpding the design, and the debug.

Patchworks-ID: 35190
Signed-off-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Juan Quintela 2009-10-07 02:40:58 +02:00 committed by Anthony Liguori
parent deed3ccfca
commit 1215c6e761
4 changed files with 21 additions and 23 deletions
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13
Makefile
View File

@ -29,7 +29,10 @@ else
DOCS=
endif
build-all: $(TOOLS) $(DOCS) recurse-all
SUBDIR_MAKEFLAGS=$(if $(V),,--no-print-directory)
build-all: config-host.h
$(call quiet-command, $(MAKE) $(SUBDIR_MAKEFLAGS) $(TOOLS) $(DOCS) recurse-all,)
config-host.mak: configure
ifneq ($(wildcard config-host.mak),)
@ -37,10 +40,12 @@ ifneq ($(wildcard config-host.mak),)
@sed -n "/.*Configured with/s/[^:]*: //p" $@ | sh
endif
SUBDIR_MAKEFLAGS=$(if $(V),,--no-print-directory)
config-host.h: config-host.h-timestamp
config-host.h-timestamp: config-host.mak
SUBDIR_RULES=$(patsubst %,subdir-%, $(TARGET_DIRS))
subdir-%:
subdir-%: config-host.h
$(call quiet-command,$(MAKE) $(SUBDIR_MAKEFLAGS) -C $* V="$(V)" TARGET_DIR="$*/" all,)
$(filter %-softmmu,$(SUBDIR_RULES)): libqemu_common.a
@ -200,7 +205,7 @@ clean:
done
distclean: clean
rm -f config-host.mak config-host.h config-host.ld $(DOCS) qemu-options.texi qemu-img-cmds.texi
rm -f config-host.mak config-host.h* config-host.ld $(DOCS) qemu-options.texi qemu-img-cmds.texi
rm -f qemu-{doc,tech}.{info,aux,cp,dvi,fn,info,ky,log,pg,toc,tp,vr}
for d in $(TARGET_DIRS) libhw32 libhw64 libuser; do \
rm -rf $$d || exit 1 ; \

20
configure vendored
View File

@ -1800,13 +1800,8 @@ echo "-> Your SDL version is too old - please upgrade to have SDL support"
fi
config_host_mak="config-host.mak"
config_host_h="config-host.h"
config_host_ld="config-host.ld"
#echo "Creating $config_host_mak and $config_host_h"
test -f $config_host_h && mv $config_host_h ${config_host_h}~
echo "# Automatically generated by configure - do not modify" > $config_host_mak
printf "# Configured with:" >> $config_host_mak
printf " '%s'" "$0" "$@" >> $config_host_mak
@ -2064,18 +2059,6 @@ echo "LIBS+=$LIBS" >> $config_host_mak
echo "LIBS_TOOLS+=$libs_tools" >> $config_host_mak
echo "EXESUF=$EXESUF" >> $config_host_mak
echo "/* Automatically generated by configure - do not modify */" > $config_host_h
/bin/sh $source_path/create_config < $config_host_mak >> $config_host_h
if test -f ${config_host_h}~ ; then
if cmp -s $config_host_h ${config_host_h}~ ; then
mv ${config_host_h}~ $config_host_h
else
rm ${config_host_h}~
fi
fi
# generate list of library paths for linker script
$ld --verbose -v 2> /dev/null | grep SEARCH_DIR > ${config_host_ld}
@ -2474,8 +2457,7 @@ fi
echo "LDFLAGS+=$ldflags" >> $config_mak
echo "QEMU_CFLAGS+=$cflags" >> $config_mak
echo "/* Automatically generated by configure - do not modify */" > $config_h
echo "#include \"../config-host.h\"" >> $config_h
echo "#include \"../config-host.h\"" > $config_h
/bin/sh $source_path/create_config < $config_mak >> $config_h

2
create_config
View File

@ -1,5 +1,7 @@
#!/bin/sh
echo "/* Automatically generated by create_config - do not modify */"
while read line; do
case $line in

9
rules.mak
View File

@ -35,3 +35,12 @@ quiet-command = $(if $(V),$1,$(if $(2),@echo $2 && $1, @$1))
cc-option = $(if $(shell $(CC) $1 $2 -S -o /dev/null -xc /dev/null \
>/dev/null 2>&1 && echo OK), $2, $3)
# Generate timestamp files for .h include files
%.h: %.h-timestamp
@test -f $@ || cp $< $@
%.h-timestamp: %.mak
$(call quiet-command, $(SRC_PATH)/create_config < $< > $@, " GEN $*.h")
@cmp $@ $*.h >/dev/null 2>&1 || cp $@ $*.h