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configure, pc-bios/optionrom: pass cross CFLAGS correctly

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The optionrom build is disregarding the flags passed to the configure
script via --cross-cflags-i386.  Pass it down and add it to the Makefile.

This will make it possible to get the -m32 flag from $target_cflags to
force a 32-bit build on 64-bit hosts, instead of supplying manually the
arcane -Wa,-32 and linker emulation options.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2022-06-15 11:42:01 +02:00
parent ebca847d05
commit 640aabc8ae
2 changed files with 19 additions and 15 deletions
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2
pc-bios/optionrom/Makefile
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@ -11,7 +11,7 @@ CFLAGS = -O2 -g
quiet-command = $(if $(V),$1,$(if $(2),@printf " %-7s %s\n" $2 $3 && $1, @$1))
cc-option = $(if $(shell $(CC) $1 -c -o /dev/null -xc /dev/null >/dev/null 2>&1 && echo OK), $1, $2)
override CFLAGS += -march=i486 -Wall -m16
override CFLAGS += -march=i486 -Wall $(EXTRA_CFLAGS) -m16
# If -fcf-protection is enabled in flags or compiler defaults that will
# conflict with -march=i486