doc: merge Linux requirements for applications build

When building end-applications linked with DPDK, the only additional
tool needed is pkg-config/pkgconf. However, the standard development
tools meta-packages on most distro's include this as standard, meaning
it does not really require its own section. The one outlier in the
existing text is "alpine" where it is not present when using "libc-dev"
target. However, changing "gcc" and "libc-dev" to "alpine-sdk"
metapackage aligns alpine with the other distros in this regard.

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

diff --git a/doc/guides/linux_gsg/sys_reqs.rst b/doc/guides/linux_gsg/sys_reqs.rst
index e166e6e60ef81af5660deb40caac2244b96d7d5a..b2eacac6dca57c8e9e009e7dd1d39cd9c1b6e450 100644 (file)
--- a/doc/guides/linux_gsg/sys_reqs.rst
+++ b/doc/guides/linux_gsg/sys_reqs.rst
@@ -25,11 +25,19 @@ Compilation of the DPDK
     The setup commands and installed packages needed on various systems may be different.
     For details on Linux distributions and the versions tested, please consult the DPDK Release Notes.
 
-*   General development tools including a supported C compiler such as gcc (version 4.9+) or clang (version 3.4+).
+*   General development tools including a supported C compiler such as gcc (version 4.9+) or clang (version 3.4+),
+    and ``pkg-config`` or ``pkgconf`` to be used when building end-user binaries against DPDK.
 
     * For RHEL/Fedora systems these can be installed using ``dnf groupinstall "Development Tools"``
     * For Ubuntu/Debian systems these can be installed using ``apt install build-essential``
-    * For Alpine Linux, ``apk add gcc libc-dev bsd-compat-headers libexecinfo-dev``
+    * For Alpine Linux, ``apk add alpine-sdk bsd-compat-headers libexecinfo-dev``
+
+.. note::
+
+   pkg-config 0.27, supplied with RHEL-7,
+   does not process the Libs.private section correctly,
+   resulting in statically linked applications not being linked properly.
+   Use an updated version of ``pkg-config`` or ``pkgconf`` instead when building applications
 
 *   Python 3.5 or later.
 
@@ -85,20 +93,6 @@ For poll-mode drivers, the additional dependencies for each driver can be
 found in that driver's documentation in the relevant DPDK guide document,
 e.g. :doc:`../nics/index`
 
-
-Building DPDK Applications
---------------------------
-
-The tool pkg-config or pkgconf, integrated in most build systems,
-must be used to parse options and dependencies from libdpdk.pc.
-
-.. note::
-
-   pkg-config 0.27, supplied with RHEL-7,
-   does not process the Libs.private section correctly,
-   resulting in statically linked applications not being linked properly.
-
-
 Running DPDK Applications
 -------------------------