util/xcompile: Only use -Wno-address-of-packed-member if supported
I thought gcc ignores -Wno-* stuff that it doesn't know about, but apparently not. Change-Id: If265a7bcdcfb5e83cc06b1f914dd6bab964eaca6 Signed-off-by: Patrick Georgi <pgeorgi@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/37037 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
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@ -185,6 +185,8 @@ detect_special_flags() {
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testcc "$GCC" "$CFLAGS_GCC -Wl,--build-id=none" &&
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CFLAGS_GCC="$CFLAGS_GCC -Wl,--build-id=none"
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testcc "$GCC" "$CFLAGS_GCC -Wno-address-of-packed-member" &&
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CFLAGS_GCC="$CFLAGS_GCC -Wno-address-of-packed-member"
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case "$architecture" in
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x86)
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;;
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@ -219,7 +221,7 @@ SUBARCH_SUPPORTED+=${TSUPP-${TARCH}}
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GCC_CC_${TARCH}:=${GCC}
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GCC_CFLAGS_${TARCH}:=${CFLAGS_GCC}
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# Generally available for GCC's cc1:
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GCC_CFLAGS_${TARCH}+=-Wlogical-op -Wno-address-of-packed-member
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GCC_CFLAGS_${TARCH}+=-Wlogical-op
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GCC_ADAFLAGS_${TARCH}:=${CFLAGS_GCC}
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GCC_COMPILER_RT_${TARCH}:=${CC_RT_GCC}
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GCC_COMPILER_RT_FLAGS_${TARCH}:=${CC_RT_EXTRA_GCC}
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