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# Copyright 2013-2024 Lawrence Livermore National Security, LLC and other
# Spack Project Developers. See the top-level COPYRIGHT file for details.
#
# SPDX-License-Identifier: (Apache-2.0 OR MIT)

from spack.package import *


class Molden(MakefilePackage):
    """A package for displaying Molecular Density from various
    Ab Initio packages"""

    homepage = "https://www.theochem.ru.nl/molden/"
    url = "https://ftp.science.ru.nl/Molden/molden6.5.tar.gz"

    maintainers("dev-zero")

    version("6.7", sha256="ebd73e8d95271eb82a1464a7eab28a042662483bbff6e6dcc7db0d1c9b2e4432")
    version("6.6", sha256="2a2a7a116a336b607b50e8135bc2cca764c50e4a6896013ee3c6f582b741ee72")
    version("6.5", sha256="192631a0996b2bfa9f6b0769f83da38a9e4f83b1db9358982b23d6a594b4e8d4")

    depends_on("libx11")
    depends_on("libxmu")
    depends_on("gl@3:")
    depends_on("glu@1.3")
    depends_on("makedepend", type="build")

    parallel = False  # building in parallel is broken
    build_targets = ["clean", "all"]

    patch("for_aarch64.patch", when="target=aarch64:")

    def edit(self, spec, prefix):
        makefile = FileFilter("makefile")

        # never register extensions
        makefile.filter(r"(\s*)EXTEN = .*", r"\1EXTEN =")

        # always Spacks wrappers:
        makefile.filter(r"(\s*)CC = .*", r"\1CC = cc")
        makefile.filter(r"(\s*)FC = .*", r"\1FC = f77")

        # make sure we don't link in system X11 libs:
        makefile.filter(r"(.+)-L/usr/(?:X11R6/lib|X11R6/lib64|lib/X11) (.*)", r"\1 \2")
        makefile.filter(r"(.+)-I/usr/(?:X11R6/include|include/X11) (.*)", r"\1 \2")

        # enable basic optimization flags, arch-specific is done via wrappers
        cflags = "-O2 -funroll-loops"
        fflags = cflags

        makefile.filter(r"CFLAGS = (.*)", r"CFLAGS = {0} \1".format(cflags))
        makefile.filter(r"FFLAGS = (.*)", r"FFLAGS = {0} \1".format(fflags))

        if spec.target.family == "aarch64":
            makefile.filter(r"AFLAG=*", r"AFLAG=")
            makefile.filter(r"rm -f src/", r"rm -f ")

    def flag_handler(self, name, flags):
        if name == "fflags":
            if self.spec.satisfies("%gcc@10:"):
                if flags is None:
                    flags = []
                flags.append("-fallow-argument-mismatch")
        return (flags, None, None)

    def install(self, spec, prefix):
        install_tree("bin", prefix.bin)