3 files changed, 48 insertions, 21 deletions
diff --git a/system/86box/86box.SlackBuild b/system/86box/86box.SlackBuild
index c859af6ace..d93cd66fd7 100644
--- a/system/86box/86box.SlackBuild
+++ b/system/86box/86box.SlackBuild
@@ -8,10 +8,8 @@
 
 # Notes:
 
-# This thing uses the current directory for its config file. I thought
-# about patching it to use ~/.86box.cfg or ~/.config/86Box/86box.cfg,
-# but it might be considered a feature (create each VM in it own
-# directory, with its own 86box.cfg).
+# Version 4.x used to write the config file to the current directory.
+# Starting with 5.0, it stores configs in ~/.config/86box.
 
 # We now have rtmidi in the repo. The build doesn't autodetect it and
 # disable it if it's missing, we have to help it out with -DRTMIDI=OFF
@@ -23,9 +21,9 @@
 # The other frontends are mac/windows only.
 # Anyway, it has a nice Qt GUI, I don't see why it needs a frontend.
 
+# 20250829 bkw: update for v5.0.
 # 20240925 bkw: update for v4.2.1.
 # 20240812 bkw: update for v4.2.
-
 # 20240311 bkw: update for v4.1.
 # - submitted a build for rtmidi, so it's now supported here as an
 #   optional dep.
@@ -34,7 +32,7 @@ cd $(dirname $0) ; CWD=$(pwd)
 
 PRGNAM=86box
 SRCNAM=86Box
-VERSION=${VERSION:-4.2.1}
+VERSION=${VERSION:-5.0}
 BUILD=${BUILD:-1}
 TAG=${TAG:-_SBo}
 PKGTYPE=${PKGTYPE:-tgz}
@@ -52,22 +50,43 @@ if [ ! -z "${PRINT_PACKAGE_NAME}" ]; then
   exit 0
 fi
 
+# 20250829 bkw: Starting with version 5.0, SSE2 is required at
+# runtime, for x86 and x86_64. If we're somehow building on an ancient
+# CPU that lacks SSE2, warn the user, but don't stop the build.
+# There is probably a way to patch it to build without SSE2 on x86,
+# but I'm not spending a lot of time to figure it out because I doubt
+# anyone really needs it.
+check_sse2() {
+  grep -q '\<sse2\>' /proc/cpuinfo && return
+  cat <<EOF
+
+********************************************************************
+* WARNING: 86box requires SSE2 extensions, but you are building on a
+* system without SSE2. If you install the resulting package on this
+* system, it will fail with "Illegal Instruction" errors.
+*
+* Press ^C within 5 seconds to abort the build, or wait 5 seconds to
+* continue.
+********************************************************************
+
+EOF
+  sleep 5
+}
+
 TMP=${TMP:-/tmp/SBo}
 PKG=$TMP/package-$PRGNAM
 OUTPUT=${OUTPUT:-/tmp}
 
 if [ "$ARCH" = "i586" ]; then
-  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
-  LIBDIRSUFFIX=""
+  SLKCFLAGS="-O2 -march=i586 -mtune=i686 -msse2"
+  check_sse2
 elif [ "$ARCH" = "i686" ]; then
-  SLKCFLAGS="-O2 -march=i686 -mtune=i686"
-  LIBDIRSUFFIX=""
+  SLKCFLAGS="-O2 -march=i686 -mtune=i686 -msse2"
+  check_sse2
 elif [ "$ARCH" = "x86_64" ]; then
   SLKCFLAGS="-O2 -fPIC"
-  LIBDIRSUFFIX="64"
 else
   SLKCFLAGS="-O2"
-  LIBDIRSUFFIX=""
 fi
 
 set -e
@@ -84,6 +103,7 @@ find -L .  -perm /111 -a \! -perm 755 -a -exec chmod 755 {} + -o \
         \! -perm /111 -a \! -perm 644 -a -exec chmod 644 {} +
 
 # 20240311 bkw: rtmidi still not autodetected in 4.1.
+# 20250829 bkw: or 5.0 either.
 if [ "${RTMIDI:-yes}" != "yes" ] || ! pkg-config --exists rtmidi; then
   RTMIDI="-DRTMIDI=OFF"
 fi
@@ -92,11 +112,9 @@ mkdir -p build
 cd build
   cmake \
     $RTMIDI \
-    -DCMAKE_C_FLAGS:STRING="$SLKCFLAGS" \
-    -DCMAKE_CXX_FLAGS:STRING="$SLKCFLAGS" \
+    -DCMAKE_C_FLAGS="$SLKCFLAGS" \
+    -DCMAKE_CXX_FLAGS="$SLKCFLAGS" \
     -DCMAKE_INSTALL_PREFIX=/usr \
-    -DLIB_SUFFIX=${LIBDIRSUFFIX} \
-    -DMAN_INSTALL_DIR=/usr/man \
     -DCMAKE_BUILD_TYPE=Release ..
   make
   make install/strip DESTDIR=$PKG
diff --git a/system/86box/86box.info b/system/86box/86box.info
index 811fa49f9b..1d21965f78 100644
--- a/system/86box/86box.info
+++ b/system/86box/86box.info
@@ -1,10 +1,10 @@
 PRGNAM="86box"
-VERSION="4.2.1"
+VERSION="5.0"
 HOMEPAGE="https://86box.net/"
-DOWNLOAD="https://github.com/86Box/86Box/archive/v4.2.1/86Box-4.2.1.tar.gz \
-          https://github.com/86Box/roms/archive/v4.2.1/roms-4.2.1.tar.gz"
-MD5SUM="80067d3f51df6c693e699eeba3249d8e \
-        1c337b77aeaca8005a56b3434e94c41a"
+DOWNLOAD="https://github.com/86Box/86Box/archive/v5.0/86Box-5.0.tar.gz \
+          https://github.com/86Box/roms/archive/v5.0/roms-5.0.tar.gz"
+MD5SUM="99cebc5a2ed57cb52e32431fc6cbca89 \
+        1cc493aa3338042710248b112dabc09b"
 DOWNLOAD_x86_64=""
 MD5SUM_x86_64=""
 REQUIRES="libslirp"
diff --git a/system/86box/README b/system/86box/README
index 41469b1f1a..51f38977e7 100644
--- a/system/86box/README
+++ b/system/86box/README
@@ -30,3 +30,12 @@ Optional dependency: rtmidi (autodetected). If rtmidi is installed
 at build time, 86box will be built with support for it. If you have
 rtmidi installed but want to build without it, export RTMIDI=no in the
 environment. MIDI will still work without rtmidi.
+
+Optional dependency: gamemode. This is a runtime dependency, so it can
+be installed at any time without having to rebuild 86box.
+
+Note: Starting with version 5.0, 86box requires SSE2 extensions to run
+on 32-bit x86. Unless your CPU is over 20 years old, this shouldn't
+cause a problem. It's still possible to *build* 86box on a system
+that lacks SSE2, but not *run* it (you could install the package on a
+different machine that has SSE2 and it would work).