22 lines
623 B
Bash
22 lines
623 B
Bash
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#!/bin/sh
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CC="${1}"
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# Make sure we have enough version components
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HDR_VER="${2}.0.0"
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HDR_M="${HDR_VER%%.*}"
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HDR_V="${HDR_VER#*.}"
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HDR_m="${HDR_V%%.*}"
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# We do not want to account for the patch-level, since headers are
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# not supposed to change for different patchlevels, so we mask it out.
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# This only applies to kernels >= 3.0, but those are the only one
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# we actually care about; we treat all 2.6.x kernels equally.
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exec ${CC} -E -x c -o - - >/dev/null 2>&1 <<_EOF_
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#include <linux/version.h>
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#if (LINUX_VERSION_CODE & ~0xFF) != KERNEL_VERSION(${HDR_M},${HDR_m},0)
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#error Incorrect kernel header version.
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#endif
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_EOF_
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