sci-physics/reduze: switch to sys-libs/db:5.3

This version has a more permissive licence and reduze was the only consumer
left of 6.0. Dropping it will allow us to remove db:6.0. Sadly, reduze
does not build with 4.8, which is the main bdb version.

Signed-off-by: Sam James <sam@gentoo.org>
Closes: https://github.com/gentoo/gentoo/pull/29032
Signed-off-by: Sam James <sam@gentoo.org>

sci-physics/reduze/files/reduze-2.2-db.patch

@@ -6,7 +6,7 @@ diff -r -U2 a/reduze/CMakeLists.txt b/reduze/CMakeLists.txt
  	find_path(DB_INCLUDE_PATH NAMES dbstl_common.h
 -	          PATHS /usr/local/include/db4 /usr/local/include
 -	                /usr/include/db4 /usr/include)
-+	          PATHS /usr/include/db6.0)
++	          PATHS /usr/include/db5.3)
      # we also need db.h but just assume its in the same directory
  	find_library(DB_LIBRARY NAMES db_stl
 -	             PATHS /usr/lib /usr/local/lib)

sci-physics/reduze/reduze-2.4-r1.ebuild

@@ -1,7 +1,7 @@
-# Copyright 1999-2021 Gentoo Authors
+# Copyright 1999-2023 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
-EAPI=7
+EAPI=8
 
 inherit cmake
 
@@ -16,12 +16,14 @@ IUSE="berkdb doc examples mpi"
 
 RDEPEND="
 	>=sci-mathematics/ginac-1.4.1
-	berkdb? ( sys-libs/db:6.0[cxx] )
-	mpi? ( virtual/mpi )"
+	berkdb? ( sys-libs/db:5.3=[cxx] )
+	mpi? ( virtual/mpi )
+"
 DEPEND="${RDEPEND}"
 BDEPEND="
 	virtual/pkgconfig
-	doc? ( app-doc/doxygen )"
+	doc? ( app-doc/doxygen )
+"
 
 PATCHES=(
 	"${FILESDIR}"/${P}-cmake.patch