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33 lines
1.0 KiB
Plaintext
33 lines
1.0 KiB
Plaintext
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dnl #
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dnl # Linux 5.15 gets rid of -isystem and external <stdarg.h> inclusion
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dnl # and ships its own <linux/stdarg.h>. Check if this header file does
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dnl # exist and provide all necessary definitions for variable argument
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dnl # functions. Adjust the inclusion of <stdarg.h> according to the
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dnl # results.
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_SRC_STANDALONE_LINUX_STDARG], [
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ZFS_LINUX_TEST_SRC([has_standalone_linux_stdarg], [
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#include <linux/stdarg.h>
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#if !defined(va_start) || !defined(va_end) || \
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!defined(va_arg) || !defined(va_copy)
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#error "<linux/stdarg.h> is invalid"
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#endif
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],[])
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])
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AC_DEFUN([ZFS_AC_KERNEL_STANDALONE_LINUX_STDARG], [
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dnl #
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dnl # Linux 5.15 ships its own stdarg.h and doesn't allow to
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dnl # include compiler headers.
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dnl #
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AC_MSG_CHECKING([whether standalone <linux/stdarg.h> exists])
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ZFS_LINUX_TEST_RESULT([has_standalone_linux_stdarg], [
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AC_MSG_RESULT([yes])
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AC_DEFINE(HAVE_STANDALONE_LINUX_STDARG, 1,
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[standalone <linux/stdarg.h> exists])
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],[
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AC_MSG_RESULT([no])
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])
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])
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