games/snes9x: Fix build without portaudio.

Signed-off-by: B. Watson <urchlay@slackware.uk>

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

games/snes9x/README

@@ -31,10 +31,18 @@ Notes:
   or RETROARCH=no to forcibly disable the core. Note that RetroArch
   doesn't have to be installed to build the libretro core, but it's
   useless without RetroArch installed. Also note: the libretro core
-  builds, but has not been tested by the SlackBuild author.
+  builds, but has not been tested by the SlackBuild author. If it
+  works for you, let me know so I can update this README.
 
 - OSS audio is disabled by default. Most users won't be affected,
   since PulseAudio is now the default audio system on Slackware, and
   ALSA is the fallback option. If you *need* OSS support, set OSS=yes
-  in the script's environment. You may also disable PulseAudio by
-  setting PULSE=no in the environment.
+  in the script's environment.
+
+- PulseAudio is enabled by default. You can disable it with PULSE=no
+  in the environment.
+
+- portaudio is an optional dependency. It's autodetected at build time,
+  but you can disable it with PORTAUDIO=no in the environment. I have
+  no idea why anyone would want to built snes9x with portaudio, but
+  do whatever you decide to do.

games/snes9x/slack-desc

@@ -14,6 +14,6 @@ snes9x: for the SNES and Super Famicom Nintendo game systems on your PC or
 snes9x: Workstation. The games include some real gems that were only ever
 snes9x: released in Japan.
 snes9x:
-snes9x: Build options: PULSE=@WITHPULSE@  OSS=@WITHOSS@  RETROARCH=@build_ra@
-snes9x:
+snes9x: Build options:
+snes9x: PULSE=@PU@  OSS=@OSS@  RETROARCH=@RA@  PORTAUDIO=@PA@
 snes9x:

games/snes9x/snes9x.SlackBuild

@@ -6,6 +6,7 @@
 
 # Licensed under the WTFPL. See http://www.wtfpl.net/txt/copying/ for details.
 
+# 20230418 bkw: BUILD=2, make portaudio optional + autodetected.
 # 20230410 bkw: update for 1.62.3.
 # Most of the work needed for this update was done by M.Dinslage,
 # to whom I owe thanks. I updated the man page, and added the
@@ -18,7 +19,7 @@ cd $(dirname $0) ; CWD=$(pwd)
 
 PRGNAM=snes9x
 VERSION=${VERSION:-1.62.3}
-BUILD=${BUILD:-1}
+BUILD=${BUILD:-2}
 TAG=${TAG:-_SBo}
 PKGTYPE=${PKGTYPE:-tgz}
 
@@ -95,6 +96,13 @@ if [ "${OSS:-no}" = "no" ]; then
   WITHOSS=no
 fi
 
+WITH_PA=no
+PA_OPT="-DUSE_PORTAUDIO=OFF"
+if pkg-config --exists portaudio-2.0 && [ "${PORTAUDIO:-yes}" = "yes" ]; then
+  WITH_PA=yes
+  PA_OPT="-DUSE_PORTAUDIO=ON"
+fi
+
 SLKCFLAGS+=" -DNDEBUG"
 mkdir -p gtk/build
 cd gtk/build
@@ -103,7 +111,7 @@ cd gtk/build
     -DCMAKE_CXX_FLAGS:STRING="$SLKCFLAGS" \
     -DCMAKE_INSTALL_PREFIX=/usr \
     -DCMAKE_INSTALL_BINDIR=games \
-    $PULSEOPT $OSSOPT \
+    $PULSEOPT $OSSOPT $PA_OPT \
     -DCMAKE_INSTALL_DATAROOTDIR=share \
     -DUSE_SYSTEMZIP=OFF \
     -DCMAKE_BUILD_TYPE=Release ..
@@ -187,9 +195,10 @@ cp -a LICENSE README* docs/* unix/docs/* unix/snes9x.conf.default $PKGDOC
 cat $CWD/$PRGNAM.SlackBuild > $PKGDOC/$PRGNAM.SlackBuild
 
 mkdir -p $PKG/install
-sed -e "s,@WITHPULSE@,$WITHPULSE," \
-    -e "s,@WITHOSS@,$WITHOSS," \
-    -e "s,@build_ra@,$build_ra," \
+sed -e "s,@PU@,$WITHPULSE," \
+    -e "s,@OSS@,$WITHOSS," \
+    -e "s,@PA@,$WITH_PA," \
+    -e "s,@RA@,$build_ra," \
     < $CWD/slack-desc \
     > $PKG/install/slack-desc
 cat $CWD/doinst.sh > $PKG/install/doinst.sh