Dependencies: Get Aubio with clone and not as submodule, so we get always the newest version.

.gitmodules

-[submodule "src/lib/aubio/aubio.git"]
-	path = src/lib/aubio/aubio.git
-	url = https://github.com/aubio/aubio

src/lib/aubio/.gitignore

-aubio.git/*
-*/*
\ No newline at end of file
+*
\ No newline at end of file

aubio.git @ 63fc1dfb

-Subproject commit 63fc1dfb73714cac40869e4469cb6eac1b37beab

src/lib/aubio/build_aubio.sh

@@ -2,11 +2,23 @@
 
 # anleitung von hier : https://aubio.org/manual/latest/installing.html#git-repository
 
-# add and update git submodule
-git submodule init
-git submodule update
-# cd into git repo
-cd aubio.git
+
+GIT_DIR="aubio.git"
+
+# add or update git
+if [ ! -d "$GIT_DIR" ]; then # if folder "GIT_DIR" does not exists
+  git clone https://github.com/aubio/aubio.git "$GIT_DIR"
+  cd "$GIT_DIR"
+else
+  cd "$GIT_DIR"
+  if [[ $(git pull) = "Already up to date." ]]; then
+    # we can skip recompiling, because the last build is already up to date
+    echo "Already up to date."
+    exit 0
+  fi
+fi
+# we are in the "$GIT_DIR" now
+
 # get waf to build
 ./scripts/get_waf.sh
 # build

src/lib/build_libs.sh

 #!/bin/bash
+set -e
+cd $(dirname "$0")
 
 echo "Build segvcatch"
 cd segvcatch