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# Copyright 2013-2023 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)
import os
import re
from spack.package import *
class Flex(AutotoolsPackage):
"""Flex is a tool for generating scanners."""
homepage = "https://github.com/westes/flex"
url = "https://github.com/westes/flex/releases/download/v2.6.1/flex-2.6.1.tar.gz"
tags = ["build-tools"]
executables = ["^flex$"]
license("BSD-2-Clause")
version("2.6.4", sha256="e87aae032bf07c26f85ac0ed3250998c37621d95f8bd748b31f15b33c45ee995")
version(
"2.6.3",
sha256="68b2742233e747c462f781462a2a1e299dc6207401dac8f0bbb316f48565c2aa",
preferred=True,
)
# Avoid flex '2.6.2' (major bug)
# See issue #2554; https://github.com/westes/flex/issues/113
version("2.6.1", sha256="3c43f9e658e45e8aae3cf69fa11803d60550865f023852830d557c5f0623c13b")
version("2.6.0", sha256="cde6e46064a941a3810f7bbc612a2c39cb3aa29ce7eb775089c2515d0adfa7e9")
version("2.5.39", sha256="258d3c9c38cae05932fb470db58b6a288a361c448399e6bda2694ef72a76e7cd")
variant("nls", default=False, description="Enable native language support")
variant("lex", default=True, description="Provide symlinks for lex and libl")
depends_on("bison", type="build")
depends_on("gettext@0.19:", type="build", when="+nls")
depends_on("gettext@0.19:", type="build", when="@:2.6.0,2.6.4")
depends_on("help2man", type="build", when="@:2.6.0,2.6.4")
depends_on("findutils", type="build")
depends_on("diffutils", type="build")
# Older tarballs don't come with a configure script and the patch for
# 2.6.4 touches configure
depends_on("m4", type="build")
depends_on("autoconf", type="build", when="@:2.6.0,2.6.4")
depends_on("automake", type="build", when="@:2.6.0,2.6.4")
depends_on("libtool", type="build", when="@:2.6.0,2.6.4")
# 2.6.4 fails to compile with newer versions of gcc/glibc, see:
# - https://github.com/spack/spack/issues/8152
# - https://github.com/spack/spack/issues/6942
# - https://github.com/westes/flex/issues/241
patch(
"https://github.com/westes/flex/commit/24fd0551333e7eded87b64dd36062da3df2f6380.patch?full_index=1",
sha256="f8b85a00849bfb58c9b68e177b369f1e060ed8758253ff8daa57a873eae7b7a5",
when="@2.6.4",
)
def flag_handler(self, name, flags):
spec = self.spec
iflags = []
if name == "cflags":
if spec.satisfies("%oneapi"):
iflags.append("-Wno-error=implicit-function-declaration")
return (iflags, None, None)
@classmethod
def determine_version(cls, exe):
output = Executable(exe)("--version", output=str, error=str)
match = re.search(r"flex\s+(\S+)", output)
return match.group(1) if match else None
@classmethod
def determine_variants(cls, exes, version):
results = []
for exe in exes:
variants = ""
path = os.path.dirname(exe)
if "lex" in os.listdir(path):
variants += "+lex"
else:
variants += "~lex"
results.append(variants)
return results
@when("@:2.6.0,2.6.4")
def autoreconf(self, spec, prefix):
autogen = Executable("./autogen.sh")
autogen()
@property
def force_autoreconf(self):
# The patch for 2.6.4 touches configure
return self.spec.satisfies("@2.6.4")
def url_for_version(self, version):
url = "https://github.com/westes/flex"
if version >= Version("2.6.1"):
url += "/releases/download/v{0}/flex-{0}.tar.gz".format(version)
elif version == Version("2.6.0"):
url += "/archive/v{0}.tar.gz".format(version)
elif version >= Version("2.5.37"):
url += "/archive/flex-{0}.tar.gz".format(version)
else:
url += "/archive/flex-{0}.tar.gz".format(version.dashed)
return url
def configure_args(self):
args = []
args += self.enable_or_disable("nls")
return args
@run_after("install", when="+lex")
def symlink_lex(self):
"""Install symlinks for lex compatibility."""
dso = dso_suffix
for dir, flex, lex in (
(self.prefix.bin, "flex", "lex"),
(self.prefix.lib, "libfl.a", "libl.a"),
(self.prefix.lib, "libfl." + dso, "libl." + dso),
(self.prefix.lib64, "libfl.a", "libl.a"),
(self.prefix.lib64, "libfl." + dso, "libl." + dso),
):
if os.path.isdir(dir):
with working_dir(dir):
if os.path.isfile(flex) and not os.path.lexists(lex):
symlink(flex, lex)
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