why do they push the boost as mandatory in guru overlay for imhex?

app-editors/imhex/Manifest

@@ -1,2 +1,2 @@
-DIST imhex-1.36.2.gh.tar.gz 33211537 BLAKE2B e0c9c8ae8ce003a3115a239d89a660e7dd1c2c709c8aa1007463ddfc7861a5f10394cef1621a09ed9f7bd90fbfa5249a14aed619bd9f50c53500a1a9dc090aa0 SHA512 071bde53b20d68e9300922d507f20ee847bcb7c26e87c4a896126355cc9107dd0fd0226a6b74cc9792c1d1d1f6e75b50fa185f3556e490de96893cdce9e20031
+DIST imhex-1.37.1.gh.tar.gz 33722261 BLAKE2B b6cd8c03fe058a2b30d12dfa6ee89ff69ec5baa9857c3c94ad0489364b646f616f133b03affbf4706dec40ddac27753d6ba4581c55b3150a519e640e0a2ad525 SHA512 2a57fcf6d38e533a4db1b007e1e5e74748db2b36dad9dd67880bbabdeb1d107b020673e1ee59befa225b7eed30bec093577c0c35f95427f49ded058e4cdfb44c
-DIST imhex-patterns-1.36.2.gh.tar.gz 13564417 BLAKE2B 891f8610f643616c5e7625a2a1ca6035038ef67aa6e425fe9fb997a2b18484800bc8caa0ebb52bdeadd61595409b1b768d4bedc22621622c5865143a663507a7 SHA512 d19ca8d9eaa56a6e3e10ffe70aa6df6df49ae008365c182d6c6f7ffda3eae0f41ff40ab6d7670132e753fc7723555064a7cc61122ad20f5b77a35c48119fea26
+DIST imhex-patterns-1.37.1.gh.tar.gz 13620614 BLAKE2B ab909571ef060b664db523e3258e7bfda58c96a2a126a9b8a4eed933c2f6bf8e21e4836d0997757b6d0aae9746a613599a351a12dd573ebb7283999be7954838 SHA512 1e7bcf6798597d1cb12b521ecbc646b200cb71fc4569d7d9da10b5432c8ae658f8bf2e78aabb27ebd2dc2b154153f2e9dab40af7396e57c682d76f5da8ff87a6

app-editors/imhex/files/cmake_boost_regex.patch

@@ -0,0 +1,11 @@
+--- a/cmake/build_helpers.cmake
++++ b/cmake/build_helpers.cmake
+@@ -823,7 +823,7 @@ macro(addBundledLibraries)
+     endif()
+ 
+     if (USE_SYSTEM_BOOST)
+-        find_package(Boost REQUIRED)
++		find_package(Boost REQUIRED COMPONENTS regex)
+         set(BOOST_LIBRARIES Boost::regex)
+     else()
+         add_subdirectory(${THIRD_PARTY_LIBS_FOLDER}/boost ${CMAKE_CURRENT_BINARY_DIR}/boost EXCLUDE_FROM_ALL)

app-editors/imhex/files/cmake_mbedtls.patch

@@ -0,0 +1,20 @@
+--- a/cmake/modules/FindmbedTLS.cmake
++++ b/cmake/modules/FindmbedTLS.cmake
+@@ -19,13 +19,13 @@
+ # All rights reserved.
+ 
+ 
+-FIND_PATH(MBEDTLS_INCLUDE_DIR mbedtls/version.h)
++FIND_PATH(MBEDTLS_INCLUDE_DIR mbedtls/version.h PATH_SUFFIXES mbedtls3)
+ 
+ SET(MBEDTLS_FIND_QUIETLY TRUE)
+ 
+-FIND_LIBRARY(MBEDTLS_LIBRARY NAMES mbedtls libmbedtls libmbedx509)
+-FIND_LIBRARY(MBEDX509_LIBRARY NAMES mbedx509 libmbedx509)
+-FIND_LIBRARY(MBEDCRYPTO_LIBRARY NAMES mbedcrypto libmbedcrypto)
++FIND_LIBRARY(MBEDTLS_LIBRARY NAMES mbedtls mbedtls3 libmbedtls libmbedx509)
++FIND_LIBRARY(MBEDX509_LIBRARY NAMES mbedx509 mbedx5093 libmbedx509)
++FIND_LIBRARY(MBEDCRYPTO_LIBRARY NAMES mbedcrypto mbedcrypto3 libmbedcrypto)
+ 
+ IF(MBEDTLS_INCLUDE_DIR AND MBEDTLS_LIBRARY AND MBEDX509_LIBRARY AND MBEDCRYPTO_LIBRARY)
+     SET(MBEDTLS_FOUND TRUE)

app-editors/imhex/imhex-1.37.1-r1.ebuild

@@ -19,7 +19,7 @@ S_PATTERNS="${WORKDIR}/ImHex-Patterns-ImHex-v${PV}"
 LICENSE="GPL-2"
 SLOT="0"
 KEYWORDS="~amd64"
-IUSE="+system-llvm test lto +desktop-portal"
+IUSE="+system-llvm test lto +desktop-portal lz4 boost"
 RESTRICT="!test? ( test )"
 
 PATCHES=(
@@ -28,7 +28,11 @@ PATCHES=(
 	# Because it did not cause any issue, we can disable it
 	"${FILESDIR}/remove_dotnet.patch"
 	# Remove the different -Werror flags
-	"${FILESDIR}/remove_Werror.patch"
+	#"${FILESDIR}/remove_Werror.patch"
+	# Correct the cmake MbedTLS search call
+	"${FILESDIR}/cmake_mbedtls.patch"
+	# Set boost components to regex
+	"${FILESDIR}/cmake_boost_regex.patch"
 )
 
 DEPEND="
@@ -45,7 +49,7 @@ DEPEND="
 	>=media-libs/glfw-3.4[X]
 	media-libs/glm
 	media-libs/libglvnd
-	net-libs/mbedtls:0=
+	net-libs/mbedtls:=
 	net-misc/curl
 	sys-apps/file
 	sys-libs/zlib
@@ -54,9 +58,10 @@ DEPEND="
 "
 RDEPEND="${DEPEND}"
 BDEPEND="
-	system-llvm? ( llvm-core/llvm )
 	app-admin/chrpath
 	gnome-base/librsvg
+	lz4? ( app-arch/lz4 )
+	system-llvm? ( llvm-core/llvm )
 "
 
 pkg_pretend() {
@@ -102,6 +107,7 @@ src_configure() {
 		-D IMHEX_COMPRESS_DEBUG_INFO=OFF \
 		-D IMHEX_VERSION="${PV}" \
 		-D PROJECT_VERSION="${PV}" \
+		-D USE_SYSTEM_BOOST=$(usex boost) \
 		-D USE_SYSTEM_CAPSTONE=ON \
 		-D USE_SYSTEM_FMT=ON \
 		-D USE_SYSTEM_LLVM=$(usex system-llvm) \

metadata/md5-cache/app-editors/imhex-1.37.1-r1

@@ -0,0 +1,17 @@
+BDEPEND=app-admin/chrpath gnome-base/librsvg lz4? ( app-arch/lz4 ) system-llvm? ( llvm-core/llvm ) app-alternatives/ninja >=dev-build/cmake-3.20.5
+DEFINED_PHASES=compile configure install postinst postrm prepare pretend setup test unpack
+DEPEND=app-arch/bzip2 app-arch/xz-utils app-arch/zstd:= app-forensics/yara:= >=dev-cpp/nlohmann_json-3.10.2 dev-libs/capstone:= >=dev-libs/nativefiledialog-extended-1.2.1[desktop-portal?] >=dev-libs/libfmt-8.0.0:= media-libs/fontconfig media-libs/freetype >=media-libs/glfw-3.4[X] media-libs/glm media-libs/libglvnd net-libs/mbedtls:= net-misc/curl sys-apps/file sys-libs/zlib virtual/libiconv virtual/libintl
+DESCRIPTION=A hex editor for reverse engineers, programmers, and eyesight
+EAPI=8
+HOMEPAGE=https://github.com/WerWolv/ImHex
+INHERIT=cmake llvm-r1 toolchain-funcs flag-o-matic xdg-utils
+IUSE=+system-llvm test lto +desktop-portal lz4 boost +llvm_slot_19 llvm_slot_15 llvm_slot_16 llvm_slot_17 llvm_slot_18
+KEYWORDS=~amd64
+LICENSE=GPL-2
+RDEPEND=app-arch/bzip2 app-arch/xz-utils app-arch/zstd:= app-forensics/yara:= >=dev-cpp/nlohmann_json-3.10.2 dev-libs/capstone:= >=dev-libs/nativefiledialog-extended-1.2.1[desktop-portal?] >=dev-libs/libfmt-8.0.0:= media-libs/fontconfig media-libs/freetype >=media-libs/glfw-3.4[X] media-libs/glm media-libs/libglvnd net-libs/mbedtls:= net-misc/curl sys-apps/file sys-libs/zlib virtual/libiconv virtual/libintl
+REQUIRED_USE=^^ ( llvm_slot_15 llvm_slot_16 llvm_slot_17 llvm_slot_18 llvm_slot_19 )
+RESTRICT=!test? ( test )
+SLOT=0
+SRC_URI=https://github.com/WerWolv/ImHex/releases/download/v1.37.1/Full.Sources.tar.gz -> imhex-1.37.1.gh.tar.gz https://github.com/WerWolv/ImHex-Patterns/archive/refs/tags/ImHex-v1.37.1.tar.gz -> imhex-patterns-1.37.1.gh.tar.gz
+_eclasses_=toolchain-funcs	6afdb6107430c1832ca7e16aacbf8fa1	multilib	b2a329026f2e404e9e371097dda47f96	flag-o-matic	357f1a896fbedcd06e5ce55419c49eb9	multiprocessing	1e32df7deee68372153dca65f4a7c21f	ninja-utils	2df4e452cea39a9ec8fb543ce059f8d6	xdg-utils	42869b3c8d86a70ef3cf75165a395e09	cmake	10a50dfaf728b802fcfd37f8d0da9056	llvm-utils	7f49c40879f833f9d07e2d5a9643077b	llvm-r1	0bd586d3786517cd63802a520b404dda
+_md5_=eb0afc619513c7420fedfa05b45ec681