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c9c0d073da
Add autoconf style build infrastructure to the ZFS tree. This includes autogen.sh, configure.ac, m4 macros, some scripts/*, and makefiles for all the core ZFS components.
21 lines
483 B
Plaintext
21 lines
483 B
Plaintext
dnl #
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dnl # 2.6.24 API change
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dnl # Empty write barriers are now supported and we should use them.
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_BIO_EMPTY_BARRIER], [
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AC_MSG_CHECKING([whether bio_empty_barrier() is defined])
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EXTRA_KCFLAGS="-Werror"
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ZFS_LINUX_TRY_COMPILE([
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#include <linux/bio.h>
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],[
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struct bio bio;
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(void)bio_empty_barrier(&bio);
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],[
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_BIO_EMPTY_BARRIER, 1,
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[bio_empy_barrier() is defined])
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],[
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AC_MSG_RESULT(no)
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])
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])
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