Fix for libmp3lame compilation for x86 on Mac with arm processors

Author: Javernaut

scripts/libmp3lame/build.sh

@@ -1,5 +1,14 @@
 #!/usr/bin/env bash
 
+CFLAGS=
+if [ "$ANDROID_ABI" = "x86" ] ; then
+# mp3lame's configure script sets -mtune=native for i686,
+# which leads to compilation errors on Mac with arm processors,
+# because 'native' is recognized as apple-m1 processor.
+# Passing an empty mtune resets the value to default
+    CFLAGS="-mtune="
+fi
+
 ./configure \
     --prefix=${INSTALL_DIR} \
     --host=${TARGET} \
@@ -11,6 +20,7 @@
     --disable-analyzer-hooks \
     --disable-gtktest \
     --disable-frontend \
+    CFLAGS=$CFLAGS \
     CC=${FAM_CC} \
     AR=${FAM_AR} \
     RANLIB=${FAM_RANLIB} || exit 1