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Linux 3.9 compat: Undefine GCC_VERSION

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The mainline kernel started defining GCC_VERSION with commit
torvalds/linux@3f3f8d2f48.
Unfortunately, LZ4 also defines this macro, but the two
defintions are incompatible. We undefine GCC_VERSION in lz4.c
to handle this.

Signed-off-by: Richard Yao <ryao@cs.stonybrook.edu>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #1339
This commit is contained in:
Richard Yao 2013-03-04 15:52:11 -05:00 committed by Brian Behlendorf
parent 7c72f8e391
commit 1c24b699b0
1 changed files with 8 additions and 0 deletions
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8
module/zfs/lz4.c
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@ -243,6 +243,14 @@ lz4_decompress(void *s_start, void *d_start, size_t s_len, size_t d_len, int n)
/* Disable restrict */
#define restrict
/*
* Linux : GCC_VERSION is defined as of 3.9-rc1, so undefine it.
* torvalds/linux@3f3f8d2f48acfd8ed3b8e6b7377935da57b27b16
*/
#ifdef GCC_VERSION
#undef GCC_VERSION
#endif
#define GCC_VERSION (__GNUC__ * 100 + __GNUC_MINOR__)
#if (GCC_VERSION >= 302) || (__INTEL_COMPILER >= 800) || defined(__clang__)