[PR PATCH] [RFC] add sse flags to i686 profile

[Calandracas606 <Calandracas606@users.noreply.github.com>]

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There is a new pull request by Calandracas606 against master on the void-packages repository

https://github.com/Calandracas606/void-packages i686-sse2
https://github.com/void-linux/void-packages/pull/51333

[RFC] add sse flags to i686 profile
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#### Testing the changes
- I tested the changes in this PR: **NO**

I don't actually have any i686 hardware to test with, but I've built a few packages without issues.

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There are several packages which require sse2 and fpmath flags to be added manually.

The void documentation quite clearly states that pentium 4 (sse2) is the base system requirements: https://docs.voidlinux.org/installation/index.html#base-system-requirements

If the base requirements are pentium4, we could alternately set gcc's `-march=pentium4` flag


A patch file from https://github.com/void-linux/void-packages/pull/51333.patch is attached

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From 050c4c8f57bf18f98d9351c8da6f491fc789426d Mon Sep 17 00:00:00 2001
From: Daniel Martinez <danielmartinez@cock.li>
Date: Thu, 18 Jul 2024 15:30:15 -0400
Subject: [PATCH] add sse flags to i686 profile

---
 common/build-profiles/i686-musl.sh | 2 +-
 common/build-profiles/i686.sh      | 2 +-
 common/cross-profiles/i686-musl.sh | 2 +-
 common/cross-profiles/i686.sh      | 2 +-
 4 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/common/build-profiles/i686-musl.sh b/common/build-profiles/i686-musl.sh
index a607ef619e7915..824ff11631f110 100644
--- a/common/build-profiles/i686-musl.sh
+++ b/common/build-profiles/i686-musl.sh
@@ -1,4 +1,4 @@
-XBPS_TARGET_CFLAGS="-mtune=i686"
+XBPS_TARGET_CFLAGS="-mtune=i686 -msse -msse2 -mfpmath=sse"
 XBPS_TARGET_CXXFLAGS="$XBPS_TARGET_CFLAGS"
 XBPS_TARGET_FFLAGS="$XBPS_TARGET_CFLAGS"
 XBPS_TRIPLET="i686-linux-musl"
diff --git a/common/build-profiles/i686.sh b/common/build-profiles/i686.sh
index ac69fb0c519d38..8b974fd9f79e86 100644
--- a/common/build-profiles/i686.sh
+++ b/common/build-profiles/i686.sh
@@ -1,4 +1,4 @@
-XBPS_TARGET_CFLAGS="-mtune=i686"
+XBPS_TARGET_CFLAGS="-mtune=i686 -msse -msse2 -mfpmath=sse"
 XBPS_TARGET_CXXFLAGS="$XBPS_TARGET_CFLAGS"
 XBPS_TARGET_FFLAGS="$XBPS_TARGET_CFLAGS"
 XBPS_TRIPLET="i686-pc-linux-gnu"
diff --git a/common/cross-profiles/i686-musl.sh b/common/cross-profiles/i686-musl.sh
index c1cdf60f5ebb8e..185065dd87d23a 100644
--- a/common/cross-profiles/i686-musl.sh
+++ b/common/cross-profiles/i686-musl.sh
@@ -3,7 +3,7 @@
 XBPS_TARGET_MACHINE="i686-musl"
 XBPS_TARGET_QEMU_MACHINE="i386"
 XBPS_CROSS_TRIPLET="i686-linux-musl"
-XBPS_CROSS_CFLAGS="-march=i686"
+XBPS_CROSS_CFLAGS="-march=i686 -msse -msse2 -mfpmath=sse"
 XBPS_CROSS_CXXFLAGS="$XBPS_CROSS_CFLAGS"
 XBPS_CROSS_FFLAGS="$XBPS_CROSS_CFLAGS"
 XBPS_CROSS_RUSTFLAGS="--sysroot=${XBPS_CROSS_BASE}/usr"
diff --git a/common/cross-profiles/i686.sh b/common/cross-profiles/i686.sh
index 16f44013ab7610..5313d260b11f62 100644
--- a/common/cross-profiles/i686.sh
+++ b/common/cross-profiles/i686.sh
@@ -3,7 +3,7 @@
 XBPS_TARGET_MACHINE="i686"
 XBPS_TARGET_QEMU_MACHINE="i386"
 XBPS_CROSS_TRIPLET="i686-pc-linux-gnu"
-XBPS_CROSS_CFLAGS="-march=i686"
+XBPS_CROSS_CFLAGS="-march=i686 -msse -msse2 -mfpmath=sse"
 XBPS_CROSS_CXXFLAGS="$XBPS_CROSS_CFLAGS"
 XBPS_CROSS_FFLAGS="$XBPS_CROSS_CFLAGS"
 XBPS_CROSS_RUSTFLAGS="--sysroot=${XBPS_CROSS_BASE}/usr"