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Merge pull request #182 from tpetazzoni/libm-fix

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Link against libm when needed
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Eric Haszlakiewicz
2015-05-08 21:19:48 -04:00
parent 82a1316f76 93582ad85e
commit e1eb298de1
2 changed files with 6 additions and 1 deletions
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4
configure.ac
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@@ -53,6 +53,10 @@ AC_CHECK_DECLS([isinf], [], [], [[#include <math.h>]])
AC_CHECK_DECLS([_isnan], [], [], [[#include <float.h>]])
AC_CHECK_DECLS([_finite], [], [], [[#include <float.h>]])
if test "$ac_cv_have_decl_isnan" = "yes" ; then
AC_TRY_LINK([#include <math.h>], [float f = 0.0; return isnan(f)], [], [LIBS="$LIBS -lm"])
fi
#check if .section.gnu.warning accepts long strings (for __warn_references)
AC_LANG_PUSH([C])