net-libs/dpdk: add static linker patch

closes: https://bugs.gentoo.org/830145
Package-Manager: Portage-3.0.30, Repoman-3.0.3
Signed-off-by: Aisha Tammy <gentoo@aisha.cc>

net-libs/dpdk/dpdk-21.11.ebuild

@@ -4,7 +4,7 @@
 EAPI=7
 
 PYTHON_COMPAT=( python3_{8..10} )
-inherit python-single-r1 meson
+inherit toolchain-funcs python-single-r1 meson
 
 DESCRIPTION="Data Plane Development Kit libraries for fast userspace networking"
 HOMEPAGE="https://dpdk.org/"
@@ -44,12 +44,15 @@ BDEPEND="
 	dev-lang/nasm
 "
 
+PATCHES=( "${FILESDIR}/dpdk-21.11-static_linker.patch" )
+
 src_configure() {
 	python-single-r1_pkg_setup
 	local emesonargs=(
 		-Denable_kmods=false
 		-Dmachine=default
 		-Dplatform=generic
+		-Dstatic_linker=$(tc-getAR)
 		$(meson_use test tests)
 	)
 	meson_src_configure

net-libs/dpdk/files/dpdk-21.11-static_linker.patch

@@ -0,0 +1,45 @@
+allow setting static linker
+
+diff --git a/buildtools/meson.build b/buildtools/meson.build
+index 22ea0ba..1da02ad 100644--- a/buildtools/meson.build
++++ b/buildtools/meson.build
+@@ -24,14 +24,19 @@ binutils_avx512_check = (py3 + files('binutils-avx512-check.py') +
+ # select library and object file format
+ pmdinfo = py3 + files('gen-pmdinfo-cfile.py') + [meson.current_build_dir()]
+ pmdinfogen = py3 + files('pmdinfogen.py')
++ar = ''
++if cc.get_id() == 'gcc' or host_machine.system() != 'windows'
++    ar = 'ar'
++else
++    ar = 'llvm-ar'
++endif
++if get_option('static_linker') != ''
++    ar = get_option('static_linker')
++endif
+ if host_machine.system() == 'windows'
+-    if cc.get_id() == 'gcc'
+-        pmdinfo += 'ar'
+-    else
+-        pmdinfo += 'llvm-ar'
+-    endif
++    pmdinfo += ar
+     pmdinfogen += 'coff'
+ else
+-    pmdinfo += 'ar'
++    pmdinfo += ar
+     pmdinfogen += 'elf'
+ endif
+
+diff --git a/meson_options.txt b/meson_options.txt
+index 7c220ad..c5c09b4 100644
+--- a/meson_options.txt
++++ b/meson_options.txt
+@@ -26,6 +26,8 @@ option('flexran_sdk', type: 'string', value: '', description:
+        'Path to FlexRAN SDK optional Libraries for BBDEV device')
+ option('ibverbs_link', type: 'combo', choices : ['static', 'shared', 'dlopen'], value: 'shared', description:
+        'Linkage method (static/shared/dlopen) for Mellanox PMDs with ibverbs dependencies.')
++option('static_linker', type: 'string', value: '', description:
++       'Linker to use for creating static libraries.')
+ option('include_subdir_arch', type: 'string', value: '', description:
+        'subdirectory where to install arch-dependent headers')
+ option('kernel_dir', type: 'string', value: '', description: