[Android] build: fix gas building on vlc 3.0 and 4.0 branch

[Zhao]

vlc-android | branch: master | Zhao <quinkblack at foxmail.com> | Wed Oct 31 21:02:11 2018 +0800| [3e1f7bc6f466813e9760f671a0afe8510ea68dfe] | committer: Geoffrey Métais

build: fix gas building on vlc 3.0 and 4.0 branch

Signed-off-by: Geoffrey Métais <geoffrey.metais at gmail.com>

> https://code.videolan.org/videolan/vlc-android/commit/3e1f7bc6f466813e9760f671a0afe8510ea68dfe
---

 compile-libvlc.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/compile-libvlc.sh b/compile-libvlc.sh
index e97d8dee4..432f9d895 100755
--- a/compile-libvlc.sh
+++ b/compile-libvlc.sh
@@ -84,7 +84,7 @@ cd vlc/extras/tools
 checkfail "buildsystem tools: bootstrap failed"
 make $MAKEFLAGS
 checkfail "buildsystem tools: make failed"
-make $MAKEFLAGS .gas
+make $MAKEFLAGS .gas || make $MAKEFLAGS .buildgas
 checkfail "buildsystem tools: make failed"
 cd ../../..