libebur128: build with -O2, fix build on musl

srcpkgs/libebur128/template

@@ -1,15 +1,20 @@
 # Template file for 'libebur128'
 pkgname=libebur128
 version=1.2.4
-revision=1
+revision=2
 build_style=cmake
+configure_args="-DCMAKE_BUILD_TYPE=None"
 short_desc="Implementation of the EBU R 128 standard for loudness normalisation"
 maintainer="Frank Steinborn <steinex@nognu.de>"
-license="MIT, BSD-4-Clause-UC"
+license="MIT"
 homepage="https://github.com/jiixyj/libebur128"
-distfiles="https://github.com/jiixyj/${pkgname}/archive/v${version}.tar.gz"
+distfiles="https://github.com/jiixyj/libebur128/archive/v${version}.tar.gz"
 checksum=2ee41a3a5ae3891601ae975d5ec2642b997d276ef647cf5c5b363b6127f7add8
 
+if [ "$XBPS_TARGET_LIBC" = musl ]; then
+	makedepends="musl-legacy-compat"
+fi
+
 post_install() {
 	vlicense COPYING
 }