2014-02-22 23:23:33 +01:00
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Add a check for FE_DIVBYZERO
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Some architectures (namely Microblaze) do have fenv.h and
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feenableexcept, but they don't have the FE_DIVBYZERO definition. This
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patch adds a configure check for FE_DIVBYZERO, and only uses it if
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it's available.
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Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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Index: b/configure.ac
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===================================================================
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--- a/configure.ac
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+++ b/configure.ac
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@@ -838,6 +838,11 @@
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AC_DEFINE(HAVE_FEENABLEEXCEPT, 1, [Whether we have feenableexcept()])
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fi
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+AC_CHECK_DECL([FE_DIVBYZERO], [], [], [[#include <fenv.h>]])
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2014-02-23 11:08:25 +01:00
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+if test x$ac_cv_have_decl_FE_DIVBYZERO = xyes; then
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2014-02-22 23:23:33 +01:00
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+ AC_DEFINE(HAVE_FEDIVBYZERO, 1, [Whether we have FE_DIVBYZERO])
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+fi
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+
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AC_CHECK_FUNC(gettimeofday, have_gettimeofday=yes, have_gettimeofday=no)
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AC_CHECK_HEADER(sys/time.h, have_sys_time_h=yes, have_sys_time_h=no)
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if test x$have_gettimeofday = xyes && test x$have_sys_time_h = xyes; then
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Index: b/test/utils.c
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===================================================================
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--- a/test/utils.c
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+++ b/test/utils.c
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@@ -776,9 +776,11 @@
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{
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#ifdef HAVE_FENV_H
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#ifdef HAVE_FEENABLEEXCEPT
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+#ifdef HAVE_FE_DIVBYZERO
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feenableexcept (FE_DIVBYZERO);
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#endif
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#endif
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+#endif
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}
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void *
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