alarm/kodi-rpi to 20.5-3

Only build with LTO enabled for aarch64

alarm/kodi-rpi/PKGBUILD

@@ -23,7 +23,7 @@ _commit=8ff17bbfc65c9b3c1923e85c4b40e5033aceebcc
 _clangbuild=
 
 pkgver=20.5
-pkgrel=2
+pkgrel=3
 arch=('aarch64' 'armv7h')
 url="https://github.com/graysky2/xbmc/tree/gs-gbm_nexus"
 license=('GPL2')
@@ -136,10 +136,12 @@ build() {
     # in a single package which is consistent with how LibreELEC is currently built, see:
     # https://github.com/LibreELEC/LibreELEC.tv/commit/8e6605f6da56f25a00272b1cbacb93d40200153f#commitcomment-46341034
     CFLAGS="-mcpu=cortex-a53 -mfpu=neon-fp-armv8 -mfloat-abi=hard"
+    _args=(-DUSE_LTO=OFF)
   elif [[ $CARCH = "aarch64" ]]; then
     # note that we use a value of cortex-a53 here to allow RPi3 and RPi4 to use the same package
     # consistent with rationale of previous comment
     CFLAGS="-mcpu=cortex-a53"
+    _args=(-DUSE_LTO=ON)
   fi
 
   CFLAGS+=" -O2 -pipe -fstack-protector-strong -fno-plt -fexceptions -Wp,-D_FORTIFY_SOURCE=2 -Wformat -Werror=format-security -fstack-clash-protection"
@@ -153,11 +155,10 @@ build() {
     #export DISTCC_HOSTS="localhost/5 10.0.1.103/5:3636"
   fi
 
-  _args=(
+  _args+=(
     -DCMAKE_BUILD_TYPE=Release
     -DCMAKE_INSTALL_PREFIX=/usr
     -DCMAKE_INSTALL_LIBDIR=/usr/lib
-    -DUSE_LTO=ON
     -DVERBOSE=ON
     -DENABLE_LDGOLD=OFF
     -DENABLE_AIRTUNES=ON