Fall back to qemu based builds for armv7l

Unfortunately the linux32 wrapper + aarch64 host lead to armv8l
builds on travis.
As a quick fix we go back to qemu based building for armv7l.
The tests where disabled for armv7l because installing the required numpy
took too long and we hit the maximum allowed travis build time.

.travis.yml

@@ -60,16 +60,18 @@ jobs:
     - arch: amd64
       env: P=linux_i686 A=cp38
     # linux_armv7l
-    - arch: arm64
-      env: P=linux_armv7l A=cp34m
-    - arch: arm64
-      env: P=linux_armv7l A=cp35m
-    - arch: arm64
-      env: P=linux_armv7l A=cp36m
-    - arch: arm64
-      env: P=linux_armv7l A=cp37m
-    - arch: arm64
-      env: P=linux_armv7l A=cp38
+    # armv7l is still build using qemu on x86, because it was not easily possible to build for armv7l (The best was armv8l using linux32 wrapper)
+    # The tests are disabled for armv7l because installing the required numpy took too long and we hit the maximum allowed travis build time.
+    - arch: amd64
+      env: P=linux_armv7l A=cp34m ARGS="--disable-tests"
+    - arch: amd64
+      env: P=linux_armv7l A=cp35m ARGS="--disable-tests"
+    - arch: amd64
+      env: P=linux_armv7l A=cp36m ARGS="--disable-tests"
+    - arch: amd64
+      env: P=linux_armv7l A=cp37m ARGS="--disable-tests"
+    - arch: amd64
+      env: P=linux_armv7l A=cp38 ARGS="--disable-tests"
     # linux_aarch64
     - arch: arm64
       env: P=linux_aarch64 A=cp34m
@@ -120,7 +122,7 @@ script:
   if [ "$TRAVIS_CPU_ARCH" == "amd64" ]; then
       docker run --rm --privileged multiarch/qemu-user-static:register --reset
   fi
-- "./scripts/build/build-arch.sh --platform-tag $P --abi-tag $A --pylon-dir ./pylon_installer"
+- "./scripts/build/build-arch.sh --platform-tag $P --abi-tag $A --pylon-dir ./pylon_installer $ARGS"
 
 deploy:
   provider: releases

changelog.txt

@@ -4,6 +4,7 @@ Version 1.6.0
     - Fixed unittests that failed in python 3.8
     - Updated to current pylon version for windows and linux
     - Enabled unittests in CI-builds
+    - Fixed aarch64 binary wheel releases on github
 
 Version 1.5.4
     - Date 2020-04-16