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From: Thomas Monjalon <thomas@monjalon.net>
To: qian.q.xu@intel.com
Cc: adrien.mazarguil@6wind.com, dev@dpdk.org, hemant.agrawal@nxp.com,
	bruce.richardson@intel.com
Subject: compilation error on Suse 11 - LPM init of anon union
Date: Sat, 13 Jan 2018 20:14:06 +0100	[thread overview]
Message-ID: <13541534.8OkorCjPcv@xps> (raw)

Hi,

There is a new compilation error since this commit in LPM:
	http://dpdk.org/commit/b2e1c99
The brace has been removed because unnecessary with anonymous union.

This union is declared with RTE_STD_C11 for compatibility
with old compilers:
	/** C extension macro for environments lacking C11 features. */
	#if !defined(__STDC_VERSION__) || __STDC_VERSION__ < 201112L
	#define RTE_STD_C11 __extension__                                                                    
	#else
	#define RTE_STD_C11
	#endif

Unfortunately, it does not work on Suse 11 SP2 with GCC 4.5.1:
	lib/librte_lpm/rte_lpm.c: In function ‘add_depth_big_v20’:
	lib/librte_lpm/rte_lpm.c:886:4: error:
	unknown field ‘group_idx’ specified in initializer

Curiously, the error is exactly the same with ICC 16.0.2:
	http://dpdk.org/ml/archives/test-report/2018-January/038443.html
Is it really using different compilers in those 2 tests?

Someone to check the value of __STDC_VERSION__ with those compilers?
	gcc -dM -E -xc /dev/null | grep STDC_VERSION

Thanks for the help

             reply	other threads:[~2018-01-13 19:14 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-01-13 19:14 Thomas Monjalon [this message]
2018-01-15 16:18 ` compilation error on Suse 11 - LPM init of anon union Adrien Mazarguil
2018-01-15 17:08   ` Adrien Mazarguil
2018-01-17 22:49     ` Thomas Monjalon
2018-01-17 22:51       ` Thomas Monjalon

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