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Re: [Qemu-trivial] [PATCH 1/2] Use libtool instead of ar to create stati
From: |
Fam Zheng |
Subject: |
Re: [Qemu-trivial] [PATCH 1/2] Use libtool instead of ar to create static libraries on Darwin. |
Date: |
Tue, 3 May 2016 09:04:35 +0800 |
User-agent: |
Mutt/1.6.0 (2016-04-01) |
Cc'ing Peter Maydell, who must have better ideas than me on building on Mac.
On Mon, 05/02 20:47, Christopher Friedt wrote:
>
> Currently, at least on Mac OS X 10.11.4 (El Capitan), Qemu fails to build for
> a few reasons.
>
> One of those reasons is that Apple's ld (at least ld64) does not properly
> process archive files created with ar (even Apple's ar).
>
> After some RTFM'ing, I came upon this tidbit, which is unfortunate. Luckily,
> autotools packages are not broken.
>
> "Libtool with -static is intended to replace ar(5) and ranlib."
> http://www.manpages.info/macosx/libtool.1.html
>
> In any case, this change takes Apple's recommendations into account and
> allows Qemu to build on Mac OS X El Capitan.
>
> Signed-off-by: Christopher Friedt <address@hidden>
> ---
> rules.mak | 4 ++++
> 1 file changed, 4 insertions(+)
>
> diff --git a/rules.mak b/rules.mak
> index d1ff311..44421af 100644
> --- a/rules.mak
> +++ b/rules.mak
> @@ -105,7 +105,11 @@ modules:
> $(call LINK,$(filter %.o %.a %.mo, $^))
>
> %.a:
> +ifeq ($(shell uname),Darwin)
I think you can use "ifdef CONFIG_DARWIN" here.
> + $(call quiet-command,rm -f $@ && libtool -static -o $@ $^," libtool
> $(TARGET_DIR)$@")
Is libtool always available on Mac OS X? If not, we may need to add the
detection to ./configure.
Fam
> +else
> $(call quiet-command,rm -f $@ && $(AR) rcs $@ $^," AR
> $(TARGET_DIR)$@")
> +endif
>
> quiet-command = $(if $(V),$1,$(if $(2),@echo $2 && $1, @$1))
>