[PATCH v2 3/4] doc: arm64 cross build numactl compilers

["Juraj Linkeš" <juraj.linkes@pantheon.tech>]

Numactl cross compilation doesn't work with clang, remove it and fix the
gcc cross compiler executable name.

Signed-off-by: Juraj Linkeš <juraj.linkes@pantheon.tech>
---
 doc/guides/linux_gsg/cross_build_dpdk_for_arm64.rst | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/doc/guides/linux_gsg/cross_build_dpdk_for_arm64.rst b/doc/guides/linux_gsg/cross_build_dpdk_for_arm64.rst
index af159bbf93..6153bc5b77 100644
--- a/doc/guides/linux_gsg/cross_build_dpdk_for_arm64.rst
+++ b/doc/guides/linux_gsg/cross_build_dpdk_for_arm64.rst
@@ -35,13 +35,14 @@ NUMA is required by most modern machines, not needed for non-NUMA architectures.
    git checkout v2.0.13 -b v2.0.13
    ./autogen.sh
    autoconf -i
-   ./configure --host=aarch64-linux-gnu CC=<compiler> --prefix=<numa install dir>
+   ./configure --host=aarch64-linux-gnu CC=aarch64-none-linux-gnu-gcc --prefix=<numa install dir>
    make install
 
 .. note::
 
-   The compiler above can be either aarch64-linux-gnu-gcc or clang.
-   See below for information on how to get specific compilers.
+   The compiler is aarch64-none-linux-gnu-gcc if you download gcc using the
+   below guide. If you're using a different compiler, make sure you're using
+   the proper executable name.
 
 The numa header files and lib file is generated in the include and lib folder
 respectively under ``<numa install dir>``.
-- 
2.20.1