games/odamex: Add SDL2 option.

Signed-off-by: B. Watson <yalhcru@gmail.com>

Signed-off-by: Willy Sudiarto Raharjo <willysr@slackbuilds.org>

games/odamex/odamex.SlackBuild

@@ -6,6 +6,10 @@
 
 # Licensed under the WTFPL. See http://www.wtfpl.net/txt/copying/ for details.
 
+# 20211231 bkw: BUILD=2.
+# - the SDL2 segfault will likely be fixed soon (reported to PV, along
+#   with a patch). add SDL2 environment variable, default to no.
+
 # 20211028 bkw: update for v0.9.5.
 # - had to switch to SDL 1 to avoid SDL2_Mixer-related segfaults.
 #   unfortunately I can't get the music to work with SDL 1...
@@ -28,7 +32,7 @@ cd $(dirname $0) ; CWD=$(pwd)
 
 PRGNAM=odamex
 VERSION=${VERSION:-0.9.5}
-BUILD=${BUILD:-1}
+BUILD=${BUILD:-2}
 TAG=${TAG:-_SBo}
 PKGTYPE=${PKGTYPE:-tgz}
 
@@ -40,9 +44,6 @@ if [ -z "$ARCH" ]; then
   esac
 fi
 
-# If the variable PRINT_PACKAGE_NAME is set, then this script will report what
-# the name of the created package would be, and then exit. This information
-# could be useful to other scripts.
 if [ ! -z "${PRINT_PACKAGE_NAME}" ]; then
   echo "$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE"
   exit 0
@@ -89,6 +90,14 @@ chown -R root:root .
 find . -type f -exec chmod 644 {} \+
 find . -type d -exec chmod 755 {} \+
 
+SDL12ARG=ON
+[ "${SDL2:-no}" = "yes" ] && SDL12ARG=OFF
+
+# 20220101 bkw: do not use systemwide install of portmidi, if it exists.
+# This is to avoid a hidden portmidi dependency breaking the odamex
+# binary when portmidi gets removed or upgraded.
+patch -p1 < $CWD/use_bundled_portmidi.diff
+
 # Make the launcher look in /usr/games for the odamex binary rather
 # than the current directory. User can override with the settings
 # dialog, this just sets the default.
@@ -105,7 +114,7 @@ cd build
     -DCMAKE_INSTALL_PREFIX=/usr \
     -DCMAKE_INSTALL_BINDIR=games \
     -DwxWidgets_CONFIG_EXECUTABLE=$WXCONFIG \
-    -DUSE_SDL12=ON \
+    -DUSE_SDL12=$SDL12ARG \
     -DCMAKE_BUILD_TYPE=Release ..
   make VERBOSE=1
 cd ..