Use master PortAudio + fix some bugs

lib-src/portaudio-v19/.github/asiosdk-version.txt

@@ -0,0 +1,5 @@
+GitHub Actions uses the hash of this file as the cache key for the ASIO SDK.
+Update this file when a new version of the ASIO SDK is released to trigger
+a new download on GitHub Actions instead of using the old cache.
+
+asiosdk_2.3.3_2019-06-14.zip

lib-src/portaudio-v19/.github/workflows/MSBuild.yml

@@ -4,12 +4,12 @@ on: [push, pull_request]
 
 env:
   # Path to the solution file relative to the root of the project.
-  SOLUTION_FILE_PATH: ./build/msvc/portaudio.sln
-  VCPROJ_FILE_PATH: ./build/msvc/portaudio.vcproj
-  VCXPROJ_FILE_PATH: ./build/msvc/portaudio.vcxproj
-  VCXPROJ_FILTERS_FILE_PATH: ./build/msvc/portaudio.vcxproj.filters
-  VCXPROJ_USER_FILE_PATH: ./build/msvc/portaudio.vcxproj.user
-  DEF_FILE_PATH: ./build/msvc/portaudio.def
+  SOLUTION_FILE_PATH: ./msvc/portaudio.sln
+  VCPROJ_FILE_PATH: ./msvc/portaudio.vcproj
+  VCXPROJ_FILE_PATH: ./msvc/portaudio.vcxproj
+  VCXPROJ_FILTERS_FILE_PATH: ./msvc/portaudio.vcxproj.filters
+  VCXPROJ_USER_FILE_PATH: ./msvc/portaudio.vcxproj.user
+  DEF_FILE_PATH: ./msvc/portaudio.def
 
 jobs:
   build:

lib-src/portaudio-v19/.github/workflows/autotools.yml

@@ -0,0 +1,20 @@
+name: autotools build
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  build-autotools:
+
+    runs-on: ubuntu-latest
+    name: Ubuntu
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: configure
+      run: ./configure
+    - name: make
+      run: make