# Copyright 1999-2026 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2

EAPI=8

inherit flag-o-matic toolchain-funcs

DESCRIPTION="Powerful security toolkit for adding encryption to software"
HOMEPAGE="https://github.com/cryptlib/cryptlib"
SRC_URI="https://github.com/cryptlib/cryptlib/archive/refs/tags/v${PV}.tar.gz -> ${P}.tar.gz"
S="${WORKDIR}/${P}"

LICENSE="Sleepycat"
SLOT="0"
KEYWORDS="~amd64 ~x86"
IUSE="doc ldap odbc"

RDEPEND="
	virtual/zlib
	ldap? ( net-nds/openldap )
	odbc? ( dev-db/unixODBC )
"
DEPEND="${RDEPEND}"

src_prepare() {
	default

	sed -i \
		-e "s:-m.*=pentium::g" \
		-e "s:-fomit-frame-pointer::g" \
		-e "s:-O2::g" \
		-e "s:-O3::g" \
		-e "s:-O4::g" \
		makefile || die

	sed -i \
		-e "s/-march=[[:alnum:]\.=-]*//g" \
		-e "s/-mcpu=[[:alnum:]\.=-]*//g" \
		-e "s:-O2::g" \
		-e "s:-O3::g" \
		tools/ccopts.sh || die

	sed -i -e 's:i\[3,4,5,6\]86:___:g' makefile || die

	# cryptlib otherwise prefers clang whenever it is installed, ignoring CC.
	sed -i \
		-e '/# If we.*clang installed/,/fi/d' \
		tools/getcompiler.sh || die
}

src_compile() {
	local buildopts=()

	replace-flags -O  -O2
	replace-flags -O0 -O2
	replace-flags -O1 -O2
	replace-flags -Os -O2
	is-flagq -O* || append-flags -O2

	append-flags -fPIC
	append-cppflags -D__UNIX__ -DNDEBUG -I.

	use ldap && buildopts+=( -DHAS_LDAP )
	use odbc && buildopts+=( -DHAS_ODBC )

	DISABLE_AUTODETECT=1 emake \
		CC="$(tc-getCC)" \
		LD="$(tc-getCC)" \
		AR="$(tc-getAR)" \
		STRIP=true \
		CFLAGS="${CPPFLAGS} ${CFLAGS} -c" \
		BUILDOPTS="${buildopts[*]}" \
		shared
}

src_install() {
	local libname="libcl.so.3.4.9"
	local libdir="$(get_libdir)"

	newlib.so "${libname}" "${libname}"
	dosym "${libname}" "/usr/${libdir}/libcl.so.3.4"
	dosym "${libname}" "/usr/${libdir}/libcl.so"

	doheader cryptlib.h
	dodoc README README.md SECURITY.md architecture.md
	use doc && dodoc manual.pdf
}