package: Port libargon2 package

This is an optional dependency of a more recent cryptsetup package. It
replaces the bundled one and is supposed to be faster.

Signed-off-by: Phil Sutter <phil@nwl.cc>

package/libargon2/Makefile

@@ -0,0 +1,40 @@
+# This file is part of the OpenADK project. OpenADK is copyrighted
+# material, please see the LICENCE file in the top-level directory.
+
+include $(ADK_TOPDIR)/rules.mk
+
+PKG_NAME:=		libargon2
+PKG_VERSION:=		20190702
+PKG_RELEASE:=		1
+PKG_HASH:=		daf972a89577f8772602bf2eb38b6a3dd3d922bf5724d45e7f9589b5e830442c
+PKG_DESCR:=		Password hashing software that won the Password Hashing Competition (PHC)
+PKG_SECTION:=		libs/crypto
+PKG_URL:=		https://github.com/P-H-C/phc-winner-argon2
+PKG_SITES:=		https://github.com/P-H-C/phc-winner-argon2/archive/refs/tags/
+DISTFILES:=             $(PKG_VERSION).tar.gz
+WRKDIST=		$(WRKDIR)/phc-winner-argon2-$(PKG_VERSION)
+
+PKG_SUBPKGS:=		LIBARGON2 ARGON2
+PKGSD_ARGON2:=		libargon2 command-line utility
+PKGSS_ARGON2:=		libargon2
+PKGSC_ARGON2:=		app/crypto
+
+include $(ADK_TOPDIR)/mk/package.mk
+
+$(eval $(call PKG_template,LIBARGON2,libargon2,$(PKG_VERSION)-$(PKG_RELEASE),$(PKG_DEPENDS),$(PKG_DESCR),$(PKG_SECTION)))
+$(eval $(call PKG_template,ARGON2,argon2,$(PKG_VERSION)-$(PKG_RELEASE),$(PKGSS_ARGON2),$(PKGSD_ARGON2),$(PKGSC_ARGON2)))
+
+CONFIG_STYLE:=		manual
+MAKE_ENV+=		LIBRARY_REL=lib
+
+libargon2-install:
+	$(INSTALL_DIR) ${IDIR_LIBARGON2}/usr/lib
+	$(CP) ${WRKINST}/usr/lib/libargon2.so* \
+		${IDIR_LIBARGON2}/usr/lib
+
+argon2-install:
+	$(INSTALL_DIR) $(IDIR_ARGON2)/usr/bin
+	$(INSTALL_BIN) $(WRKINST)/usr/bin/argon2 \
+		$(IDIR_ARGON2)/usr/bin
+
+include $(ADK_TOPDIR)/mk/pkg-bottom.mk