dev-cpp/string-theory: add 3.9

Fixes for CMake4, failing tests inside.

Closes: https://bugs.gentoo.org/880353
Closes: https://bugs.gentoo.org/951904
Signed-off-by: NHOrus <jy6x2b32pie9@yahoo.com>
Closes: https://github.com/gentoo/gentoo/pull/41247
Signed-off-by: Sam James <sam@gentoo.org>

dev-cpp/string-theory/Manifest

@@ -1,2 +1,3 @@
 DIST string-theory-3.5.tar.gz 589905 BLAKE2B c2bc926b8568efc1fbe27861619bd8249ad788297dd537cff393d212b3bb12a529847b740fc8ba82dc28501fb05800eb8debf3e4832cf145b5c13882ac45e900 SHA512 30300155e64ace8197ed531baffe4e835c269ac10d6857ac9f29501e0a1f69965994d6f2fa2e64544e7d441de635e2d370be24efcf00a0d24066730d19f022a6
 DIST string-theory-3.6.tar.gz 590461 BLAKE2B e8441ead9b13e8f107c47d0695ca669f40558567590b85310903f550edf2d4cbb8622f36857b9563d33a629398358e33024c97b97a8f151a3899f9cee30ee237 SHA512 2bbd8e6c5c2501cc9616ee6a77b60a7cac5e7c9fa58d6616f6ba39cfdee33dc1b072c5d1b34bd2f88726fb4d65d32032595be7a67854a2e894eb3d81d4a8eea9
+DIST string-theory-3.9.tar.gz 68952 BLAKE2B f18c558b38b346d5cfcaa18ae6ea28c223571c8c016b686f5ed787c17c34cb6bec62e064072adf8a5ebc7d2eab89173d171f02a180f3664f36f05cf8d7845808 SHA512 a36825ab22be64c7c7b54861e88dea0bde5f0b80d32fc86b863e4409c820a25fea17cfbf2d068c1fdf4fb371714337dff390d31c983ea898fbdc37a09c469b4a

dev-cpp/string-theory/files/string-theory-3.9-unbundle-gtest.patch

@@ -0,0 +1,18 @@
+Use system GTest instead of fetching it
+https://bugs.gentoo.org/880353
+--- a/test/CMakeLists.txt	2025-03-23 22:20:35.060895402 +0300
++++ b/test/CMakeLists.txt	2025-03-23 22:22:29.964436254 +0300
+@@ -33,12 +33,7 @@
+ set(BUILD_GMOCK OFF CACHE INTERNAL "Override gtest default" FORCE)
+ set(INSTALL_GTEST OFF CACHE INTERNAL "Override gtest default" FORCE)
+ 
+-include(FetchContent)
+-FetchContent_Declare(gtest
+-    GIT_REPOSITORY https://github.com/google/googletest.git
+-    GIT_TAG v1.15.2
+-)
+-FetchContent_MakeAvailable(gtest)
++find_package(GTest REQUIRED)
+ 
+ add_executable(st_gtests "")
+ target_link_libraries(st_gtests PRIVATE gtest gtest_main string_theory)

dev-cpp/string-theory/string-theory-3.9.ebuild

@@ -0,0 +1,36 @@
+# Copyright 1999-2025 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit cmake
+
+DESCRIPTION="A flexible modern C++ library for string manipulation and storage"
+HOMEPAGE="https://github.com/zrax/string_theory/"
+SRC_URI="https://github.com/zrax/string_theory/archive/${PV}.tar.gz -> ${P}.tar.gz"
+S="${WORKDIR}/string_theory-${PV}"
+
+LICENSE="MIT"
+SLOT="0"
+KEYWORDS="~amd64 ~arm64 ~ppc64 ~x86"
+IUSE="test"
+RESTRICT="!test? ( test )"
+
+DEPEND="
+	test? ( >=dev-cpp/gtest-1.15.2 )
+"
+
+PATCHES=( "${FILESDIR}/${P}-unbundle-gtest.patch" )
+
+src_configure() {
+	local mycmakeargs=(
+		-DST_BUILD_TESTS=$(usex test)
+	)
+
+	cmake_src_configure
+}
+
+src_test() {
+	cd "${BUILD_DIR}/test" || die
+	./st_gtests || die
+}