openal: Fix AL header path for Mac OS X
authorJustin Kim <jeongseok.kim@sk.com>
Mon, 24 Dec 2018 14:05:55 +0000 (23:05 +0900)
committerJustin Kim <jeongseok.kim@sk.com>
Mon, 24 Dec 2018 15:42:31 +0000 (00:42 +0900)
commit2faa08ff2877de8f299e6434048920fca0ef831e
tree8c90adb9becacc64fa4e039c77ea158b1bc66487
parentb5af1b9f2e7f076e6f13058cdb92e61e660a5fa8
openal: Fix AL header path for Mac OS X

OpenAL.framework doesn't provide 'alext.h'.
Thus, openal is enabled only if the dependency
is set by pkg-config.

fixes: #852
ext/openal/gstopenalsink.h
ext/openal/gstopenalsrc.h
ext/openal/meson.build