Mercurial > hg > CbC > CbC_llvm

annotate autoconf/m4/huge_val.m4 @ 17:5e1f5bc27634

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remove codeFlag for llvm type and add __CodeTy
author Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
date Sat, 05 Oct 2013 22:04:18 +0900
parents 9ad51c7bc036
children
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1 #
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2 # This function determins if the HUGE_VAL macro is compilable with the
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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3 # -pedantic switch or not. XCode < 2.4.1 doesn't get it right.
9ad51c7bc036 1st commit. remove git dir and add all files.
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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4 #
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5 AC_DEFUN([AC_HUGE_VAL_CHECK],[
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6 AC_CACHE_CHECK([for HUGE_VAL sanity], [ac_cv_huge_val_sanity],[
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7 AC_LANG_PUSH([C++])
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8 ac_save_CXXFLAGS=$CXXFLAGS
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9 CXXFLAGS="$CXXFLAGS -pedantic"
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10 AC_RUN_IFELSE([AC_LANG_PROGRAM([[#include <math.h>]],
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11 [[double x = HUGE_VAL; return x != x;]])],
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12 [ac_cv_huge_val_sanity=yes],[ac_cv_huge_val_sanity=no],
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13 [ac_cv_huge_val_sanity=yes])
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14 CXXFLAGS=$ac_save_CXXFLAGS
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15 AC_LANG_POP([C++])
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16 ])
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17 AC_SUBST(HUGE_VAL_SANITY,$ac_cv_huge_val_sanity)
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18 ])