doc: prefer installing using Meson rather than Ninja

After doing a build, to install DPDK system-wide our documentation
recommended using the "ninja install" command. However, for anyone
building as a non-root user and only installing as root, the "meson
install" command is a better alternative, as it provides for
automatically dropping or elevating privileges as necessary in more
recent meson releases [1].

[1] https://mesonbuild.com/Installing.html#installing-as-the-superuser

Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>

.ci/linux-build.sh

@@ -151,14 +151,14 @@ if [ "$ABI_CHECKS" = "true" ]; then
         git clone --single-branch -b "$REF_GIT_TAG" $REF_GIT_REPO $refsrcdir
         meson setup $OPTS -Dexamples= $refsrcdir $refsrcdir/build
         ninja -C $refsrcdir/build
-        DESTDIR=$(pwd)/reference ninja -C $refsrcdir/build install
+        DESTDIR=$(pwd)/reference meson install -C $refsrcdir/build
         find reference/usr/local -name '*.a' -delete
         rm -rf reference/usr/local/bin
         rm -rf reference/usr/local/share
         echo $REF_GIT_TAG > reference/VERSION
     fi
 
-    DESTDIR=$(pwd)/install ninja -C build install
+    DESTDIR=$(pwd)/install meson install -C build
     devtools/check-abi.sh reference install ${ABI_CHECKS_WARN_ONLY:-}
 fi
 
@@ -172,7 +172,7 @@ fi
 
 # Test examples compilation with an installed dpdk
 if [ "$BUILD_EXAMPLES" = "true" ]; then
-    [ -d install ] || DESTDIR=$(pwd)/install ninja -C build install
+    [ -d install ] || DESTDIR=$(pwd)/install meson install -C build
     export LD_LIBRARY_PATH=$(dirname $(find $(pwd)/install -name librte_eal.so)):$LD_LIBRARY_PATH
     export PKG_CONFIG_PATH=$(dirname $(find $(pwd)/install -name libdpdk.pc)):$PKG_CONFIG_PATH
     export PKGCONF="pkg-config --define-prefix"

devtools/test-meson-builds.sh

@@ -158,8 +158,8 @@ compile () # <builddir>
 install_target () # <builddir> <installdir>
 {
 	rm -rf $2
-	echo "DESTDIR=$2 $ninja_cmd -C $1 install" >&$verbose
-	DESTDIR=$2 $ninja_cmd -C $1 install >&$veryverbose
+	echo "DESTDIR=$2 $MESON install -C $1" >&$verbose
+	DESTDIR=$2 $MESON install -C $1 >&$veryverbose
 }
 
 build () # <directory> <target cc | cross file> <ABI check> [meson options]

doc/guides/contributing/coding_style.rst

@@ -956,7 +956,7 @@ ext_deps
 headers
 	**Default Value = []**.
 	Used to return the list of header files for the library that should be
-	installed to $PREFIX/include when ``ninja install`` is run. As with
+	installed to $PREFIX/include when ``meson install`` is run. As with
 	source files, these should be specified using the meson ``files()``
 	function.
 	When ``check_includes`` build option is set to ``true``, each header file

doc/guides/cryptodevs/uadk.rst

@@ -90,7 +90,7 @@ Test steps
       meson setup build (--reconfigure)
       cd build
       ninja
-      sudo ninja install
+      sudo meson install
 
 #. Prepare hugepages for DPDK (see also :doc:`../tools/hugepages`)
 

doc/guides/freebsd_gsg/build_dpdk.rst

@@ -47,7 +47,7 @@ The final, install, step generally needs to be run as root::
   meson setup build
   cd build
   ninja
-  ninja install
+  meson install
 
 This will install the DPDK libraries and drivers to `/usr/local/lib` with a
 pkg-config file `libdpdk.pc` installed to `/usr/local/lib/pkgconfig`. The

doc/guides/freebsd_gsg/build_sample_apps.rst

@@ -22,7 +22,7 @@ the system when DPDK is installed, and so can be built using GNU make.
    on the FreeBSD system.
 
 The following shows how to compile the helloworld example app, following
-the installation of DPDK using `ninja install` as described previously::
+the installation of DPDK using `meson install` as described previously::
 
         $ export PKG_CONFIG_PATH=/usr/local/lib/pkgconfig
 

doc/guides/linux_gsg/build_dpdk.rst

@@ -68,11 +68,11 @@ Once configured, to build and then install DPDK system-wide use:
 
         cd build
         ninja
-        ninja install
+        meson install
         ldconfig
 
 The last two commands above generally need to be run as root,
-with the `ninja install` step copying the built objects to their final system-wide locations,
+with the `meson install` step copying the built objects to their final system-wide locations,
 and the last step causing the dynamic loader `ld.so` to update its cache to take account of the new objects.
 
 .. note::

doc/guides/prog_guide/build-sdk-meson.rst

@@ -12,7 +12,7 @@ following set of commands::
 	meson setup build
 	cd build
 	ninja
-	ninja install
+	meson install
 
 This will compile DPDK in the ``build`` subdirectory, and then install the
 resulting libraries, drivers and header files onto the system - generally
@@ -165,7 +165,7 @@ printing each command on a new line as it runs.
 Installing the Compiled Files
 ------------------------------
 
-Use ``ninja install`` to install the required DPDK files onto the system.
+Use ``meson install`` to install the required DPDK files onto the system.
 The install prefix defaults to ``/usr/local`` but can be used as with other
 options above. The environment variable ``DESTDIR`` can be used to adjust
 the root directory for the install, for example when packaging.