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https://github.com/servalproject/serval-dna.git
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e8e87b8a34
Recent addition of the GCC __attribute__(alloc_size) to some functions in mem.h broke the build when using Clang 3.5. This commit introduces configure-time checks for all GCC attributes used in the Serval source code, and adapts accordingly.
64 lines
1.8 KiB
C
64 lines
1.8 KiB
C
/*
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Copyright (C) 2015 Serval Project Inc.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#ifndef __SERVAL_DNA__FEATURES_H
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#define __SERVAL_DNA__FEATURES_H
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/* Useful macros not specific to Serval DNA
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*/
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// Number of elements in an array (Warning: does not work if A is a pointer!).
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#define NELS(A) (sizeof (A) / sizeof *(A))
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// Support for various GCC attributes.
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#ifdef HAVE_FUNC_ATTRIBUTE_ERROR
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# define __ATTRIBUTE_error(m) __error__(m)
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#else
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# define __ATTRIBUTE_error(m)
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#endif
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#ifdef HAVE_FUNC_ATTRIBUTE_FORMAT
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# define __ATTRIBUTE_format(a,b,c) __format__(a,b,c)
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#else
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# define __ATTRIBUTE_format(a,b,c)
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#endif
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#ifdef HAVE_FUNC_ATTRIBUTE_MALLOC
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# define __ATTRIBUTE_malloc __malloc__
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#else
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# define __ATTRIBUTE_malloc
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#endif
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#ifdef HAVE_FUNC_ATTRIBUTE_ALLOC_SIZE
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# define __ATTRIBUTE_alloc_size(n) __alloc_size__(n)
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#else
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# define __ATTRIBUTE_alloc_size(n)
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#endif
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// To suppress the "unused parameter" warning from -Wunused-parameter.
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#ifdef HAVE_FUNC_ATTRIBUTE_UNUSED
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# define __ATTRIBUTE_unused __unused__
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# define UNUSED(x) x __attribute__((__unused__))
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#else
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# define __ATTRIBUTE_unused
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# define UNUSED(x) x
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#endif
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#endif // __SERVAL_DNA__FEATURES_H
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