daw_base: install an initscript to enable real-time scheduling behaviour if the system does not have PAM

1 files changed, 27 insertions, 1 deletions

diff --git a/daw_base/build/daw_base.SlackBuild b/daw_base/build/daw_base.SlackBuild
index bee2f21e..10d1137a 100755
--- a/daw_base/build/daw_base.SlackBuild
+++ b/daw_base/build/daw_base.SlackBuild
@@ -150,9 +150,31 @@ sh $SRCDIR/gen_wallpaper_from_bitmap.sh \
   -r $PKG/usr/share/wallpapers
 chown -R root:root $PKG/usr/share/wallpapers/
 
+# Install a sample initscript for PAM-less systems:
+mkdir -p $PKG/etc
+cat << "EOT" > $PKG/etc/initscript.realtime
+# Set umask to safe level:
+umask 022
+# Disable core dumps:
+ulimit -c 0
+# Allow unlimited size to be locked into memory:
+ulimit -l unlimited
+# Address issue of jackd failing to start with realtime scheduling:
+ulimit -r 95
+# Execute the program.
+eval exec "$4"
+EOT
+
 # Add this to the doinst.sh:
 mkdir -p $PKG/install
 cat <<EOINS >> $PKG/install/doinst.sh
+# In case PAM is not available, we install an initscript
+# to configure real-time scheduling for DAW:
+if [ ! -L lib/libpam.so.? ] && [ ! -L lib64/libpam.so.? ] ; then
+  mv etc/initscript.realtime  etc/initscript.new
+  chmod +x etc/initscript.new
+fi
+
 # Handle the incoming configuration files:
 config() {
   for infile in \$1; do
@@ -184,6 +206,9 @@ preserve_perms() {
 config etc/security/limits.d/rt_audio.conf.new
 config etc/sysctl.d/daw.conf.new
 config etc/udev/rules.d/40-timer-permissions.rules.new
+if [ -f etc/initscript.new ]; then
+  config etc/initscript.new
+fi
 
 # Update the desktop database:
 if [ -x usr/bin/update-desktop-database ]; then
@@ -206,7 +231,8 @@ EOINS
 
 # Add documentation:
 mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
-cp -a $SRCDIR/README.1st $PKG/usr/doc/$PRGNAM-$VERSION || true
+cp -a $SRCDIR/README.1st $PKG/usr/doc/$PRGNAM-$VERSION/
+cp -a $SRCDIR/gen_wallpaper_from_bitmap.sh $PKG/usr/doc/$PRGNAM-$VERSION/
 cat $SRCDIR/$(basename $0) > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild
 chown -R root:root $PKG/usr/doc/$PRGNAM-$VERSION
 find $PKG/usr/doc -type f -exec chmod 644 {} \;