configure: Print a more helpful error if autoconf-archive is not installed
... because an undefined macro receives another macro as parameter and autoconf is not smart enough to produce a useful error message. Signed-off-by: Radoslav Kolev <radoslav.kolev@suse.com> Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
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@ -1792,6 +1792,11 @@ LIBS=""
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# Defined in acinclude.m4.
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grub_ASM_USCORE
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grub_PROG_TARGET_CC
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# The error message produced by autoconf if autoconf-archive is not installed is
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# quite misleading and not very helpful. So, try point people in the right direction.
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m4_ifndef([AX_CHECK_LINK_FLAG], [m4_fatal([autoconf-archive is missing. You must install it to generate the configure script.])])
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if test "x$TARGET_APPLE_LINKER" != x1 ; then
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AX_CHECK_LINK_FLAG([-Wl,--image-base,0x400000],
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[TARGET_IMG_BASE_LDOPT="-Wl,--image-base"],
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