[PR PATCH] giac: update to 1.9.0.49.

[tornaria <tornaria@users.noreply.github.com>]

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There is a new pull request by tornaria against master on the void-packages repository

https://github.com/tornaria/void-packages giac
https://github.com/void-linux/void-packages/pull/43856

giac: update to 1.9.0.49.
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#### Testing the changes
- I tested the changes in this PR: **briefly** (tested with sagemath 9.8 and 10.0.rc2)



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A patch file from https://github.com/void-linux/void-packages/pull/43856.patch is attached

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From 9d68f8a836c460d18e10d6819e034f1062725172 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Gonzalo=20Tornar=C3=ADa?= <tornaria@cmat.edu.uy>
Date: Sun, 30 Apr 2023 19:23:01 -0300
Subject: [PATCH] giac: update to 1.9.0.49.

---
 srcpkgs/giac/template | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/srcpkgs/giac/template b/srcpkgs/giac/template
index 0aa6500beb4c..4979287c40bf 100644
--- a/srcpkgs/giac/template
+++ b/srcpkgs/giac/template
@@ -1,6 +1,6 @@
 # Template file for 'giac'
 pkgname=giac
-version=1.9.0.43
+version=1.9.0.49
 revision=1
 build_style=gnu-configure
 configure_args="--disable-micropy --disable-quickjs"
@@ -15,13 +15,18 @@ license="GPL-3.0-or-later"
 homepage="https://www-fourier.ujf-grenoble.fr/~parisse/giac.html"
 changelog="https://www-fourier.ujf-grenoble.fr/~parisse/install_en#new"
 distfiles="https://www-fourier.ujf-grenoble.fr/~parisse/debian/dists/stable/main/source/giac_${version%.*}-${version##*.}.tar.gz"
-checksum=e3aea307c651a87914e57098fa3d0587b0eafe631a3aed74ac710229bb4d1abb
+checksum=b9cd59b52b261a1598ab95bcd2d4b3f7ce1f90b226a9e5ad19e6e200b6f39147
 
 # need more than 4*65536 stack, see try_parse() in gen.cc line 11812
 LDFLAGS="-Wl,-z,stack-size=2097152"
 
 build_options="openblas"
 
+case $XBPS_TARGET_MACHINE in
+	# avoid numerical noise caused by extended-precision of registers
+	i686*) CXXFLAGS="-mfpmath=sse -msse2" ;;
+esac
+
 case "$XBPS_TARGET_MACHINE" in
 	x86_64*|i686*|aarch64*|armv[67]*|ppc64*)
 		# Prefer accelerated routines where available