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[Qemu-devel] Undefined reference to 'ffs' when building for win64


From: Jacob Kroon
Subject: [Qemu-devel] Undefined reference to 'ffs' when building for win64
Date: Wed, 6 Feb 2013 14:12:23 +0100

Hi,

I'm trying to cross-build qemu for win64 on a Fedora 18/x86_64 system,
using all the necessary mingw64 packages from Fedora. Using latest
qemu from git (5f876756c57c15f5e14d4136fc432b74f05f082b), I get an
error when linking "qemu-img.exe":

block.o: In function `bdrv_set_dirty_tracking':
/home/sejakr/Projects/flexemu/qemu/block.c:4316: undefined reference to `ffs'
block/qcow2.o: In function `qcow2_create2':
/home/sejakr/Projects/flexemu/qemu/block/qcow2.c:1184: undefined
reference to `ffs'
block/qed.o: In function `bdrv_qed_open':
/home/sejakr/Projects/flexemu/qemu/block/qed.c:429: undefined reference to `ffs'
/home/sejakr/Projects/flexemu/qemu/block/qed.c:431: undefined reference to `ffs'
collect2: error: ld returned 1 exit status
make[1]: *** [qemu-img.exe] Error 1
make[1]: Leaving directory `/home/sejakr/Projects/flexemu/qemu'
make: *** [qemu-build] Error 2

Same problem happens when linking qemu-io.exe and qemu-system-i386w.exe.

If necessary, please CC me as I am not a subscriber to the mailing list.

Regards
Jacob



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