annotate src/libsndfile-1.0.27/M4/clang.m4 @ 83:ae30d91d2ffe
Replace these with versions built using an older toolset (so as to avoid ABI compatibilities when linking on Ubuntu 14.04 for packaging purposes)
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Chris Cannam |
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Fri, 07 Feb 2020 11:51:13 +0000 |
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1df64224f5ac |
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1 dnl @synopsis MN_C_COMPILER_IS_CLANG
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2 dnl
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3 dnl Find out if a compiler claiming to be gcc really is gcc (fuck you clang).
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4 dnl @version 1.0 Oct 31 2013
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5 dnl @author Erik de Castro Lopo <erikd AT mega-nerd DOT com>
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6 dnl
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7 dnl Permission to use, copy, modify, distribute, and sell this file for any
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8 dnl purpose is hereby granted without fee, provided that the above copyright
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9 dnl and this permission notice appear in all copies. No representations are
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10 dnl made about the suitability of this software for any purpose. It is
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11 dnl provided "as is" without express or implied warranty.
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12 dnl
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13
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14
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15 AC_DEFUN([MN_C_COMPILER_IS_CLANG],
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16 [AC_CACHE_CHECK(whether we are using the CLANG C compiler,
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17 mn_cv_c_compiler_clang,
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18 [ AC_LANG_ASSERT(C)
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19 AC_TRY_LINK([
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20 #include <stdio.h>
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21 ],
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22 [
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23 #ifndef __clang__
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24 This is not clang!
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25 #endif
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26 ],
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27 mn_cv_c_compiler_clang=yes,
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28 mn_cv_c_compiler_clang=no
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29 ])
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30 )
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31 ])
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