[Qemu-devel] [PATCH 1/2] Use libtool instead of ar to create static libraries on Darwin.

[Christopher Friedt <chrisfriedt@gmail.com>]

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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 <chrisfriedt@gmail.com>
---
 rules.mak | 4 ++++
 1 file changed, 4 insertions(+)


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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)
+	$(call quiet-command,rm -f $@ && libtool -static -o $@ $^,"  libtool    $(TARGET_DIR)$@")
+else
 	$(call quiet-command,rm -f $@ && $(AR) rcs $@ $^,"  AR    $(TARGET_DIR)$@")
+endif
 
 quiet-command = $(if $(V),$1,$(if $(2),@echo $2 && $1, @$1))