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33 lines
1.2 KiB
Diff
33 lines
1.2 KiB
Diff
From 806641b5ef504488f871b5cbd9e5c356d67d0bd1 Mon Sep 17 00:00:00 2001
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From: Edgar Bonet <bonet@grenoble.cnrs.fr>
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Date: Tue, 24 Sep 2024 20:03:18 -0700
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Subject: [PATCH] check for defined(FE_UNDERFLOW)
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According to fenv(3), the macro FE_UNDERFLOW is defined by fenv.h only
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if the implementation supports handling of the underflow exception. Do
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not assume the presence of fenv.h implies FE_UNDERFLOW is defined.
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Signed-off-by: Edgar Bonet <bonet@grenoble.cnrs.fr>
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Upstream: https://sourceforge.net/p/gnuplot/gnuplot-main/ci/926d2c26d31f4b69feda372c76a28643ef45359d/
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Upstream: https://sourceforge.net/p/gnuplot/gnuplot-main/ci/806641b5ef504488f871b5cbd9e5c356d67d0bd1/
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---
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src/complexfun.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/src/complexfun.c b/src/complexfun.c
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index 7a5d9a13f..7ddb4ed60 100644
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--- a/src/complexfun.c
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+++ b/src/complexfun.c
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@@ -86,7 +86,7 @@
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int_error(NO_CARET, "%s: error present on entry (errno %d %s)", who, errno, strerror(errno));
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#endif
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-#ifdef HAVE_FENV_H
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+#if defined (HAVE_FENV_H) && defined (FE_UNDERFLOW)
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#define handle_underflow( who, var ) \
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if (errno) { \
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if (fetestexcept(FE_UNDERFLOW)) { \
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--
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2.34.1
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