43 lines
1.4 KiB
Diff
43 lines
1.4 KiB
Diff
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From 52484af83a58664c3cc91b8af07aeeea271f67ef Mon Sep 17 00:00:00 2001
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From: Gilles Talis <gilles.talis@gmail.com>
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Date: Sun, 9 Jan 2022 10:58:36 +0100
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Subject: [PATCH] Check if platform supports feenableexcept
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Signed-off-by: Gilles Talis <gilles.talis@gmail.com>
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---
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configure.ac | 4 ++++
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src/tesseract.cpp | 2 +-
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2 files changed, 5 insertions(+), 1 deletion(-)
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diff --git a/configure.ac b/configure.ac
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index 9177d64..80cd735 100644
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--- a/configure.ac
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+++ b/configure.ac
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@@ -188,6 +188,10 @@ case "${host_cpu}" in
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esac
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+# check whether feenableexcept is supported. some C libraries (e.g. uclibc) don't.
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+AC_CHECK_FUNC(feenableexcept, [feenableexcept=true], [feenableexcept=false])
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+AM_CONDITIONAL([HAVE_FEENABLEEXCEPT], $feenableexcept)
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+
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AX_CHECK_COMPILE_FLAG([-fopenmp-simd], [openmp_simd=true], [openmp_simd=false], [$WERROR])
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AM_CONDITIONAL([OPENMP_SIMD], $openmp_simd)
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diff --git a/src/tesseract.cpp b/src/tesseract.cpp
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index 933116e..9154db8 100644
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--- a/src/tesseract.cpp
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+++ b/src/tesseract.cpp
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@@ -629,7 +629,7 @@ static void PreloadRenderers(tesseract::TessBaseAPI &api,
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**********************************************************************/
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int main(int argc, char **argv) {
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-#if defined(__USE_GNU)
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+#if defined(__USE_GNU) && defined(HAVE_FEENABLEEXCEPT)
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// Raise SIGFPE.
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# if defined(__clang__)
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// clang creates code which causes some FP exceptions, so don't enable those.
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--
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2.32.0
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