30c9ff50dd
This commit extends the DSL that can be used in packages to allow declaring that a package uses different build-systems under different conditions. It requires each spec to have a `build_system` single valued variant. The variant can be used in many context to query, manipulate or select the build system associated with a concrete spec. The knowledge to build a package has been moved out of the PackageBase hierarchy, into a new Builder hierarchy. Customization of the default behavior for a given builder can be obtained by coding a new derived builder in package.py. The "run_after" and "run_before" decorators are now applied to methods on the builder. They can also incorporate a "when=" argument to specify that a method is run only when certain conditions apply. For packages that do not define their own builder, forwarding logic is added between the builder and package (methods not found in one will be retrieved from the other); this PR is expected to be fully backwards compatible with unmodified packages that use a single build system.
132 lines
4.7 KiB
Python
132 lines
4.7 KiB
Python
# Copyright 2013-2022 Lawrence Livermore National Security, LLC and other
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# Spack Project Developers. See the top-level COPYRIGHT file for details.
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#
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# SPDX-License-Identifier: (Apache-2.0 OR MIT)
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import os
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import re
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from spack.package import *
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class Flex(AutotoolsPackage):
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"""Flex is a tool for generating scanners."""
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homepage = "https://github.com/westes/flex"
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url = "https://github.com/westes/flex/releases/download/v2.6.1/flex-2.6.1.tar.gz"
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tags = ["build-tools"]
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executables = ["^flex$"]
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version("2.6.4", sha256="e87aae032bf07c26f85ac0ed3250998c37621d95f8bd748b31f15b33c45ee995")
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version(
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"2.6.3",
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sha256="68b2742233e747c462f781462a2a1e299dc6207401dac8f0bbb316f48565c2aa",
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preferred=True,
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)
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# Avoid flex '2.6.2' (major bug)
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# See issue #2554; https://github.com/westes/flex/issues/113
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version("2.6.1", sha256="3c43f9e658e45e8aae3cf69fa11803d60550865f023852830d557c5f0623c13b")
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version("2.6.0", sha256="cde6e46064a941a3810f7bbc612a2c39cb3aa29ce7eb775089c2515d0adfa7e9")
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version("2.5.39", sha256="258d3c9c38cae05932fb470db58b6a288a361c448399e6bda2694ef72a76e7cd")
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variant("nls", default=False, description="Enable native language support")
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variant("lex", default=True, description="Provide symlinks for lex and libl")
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depends_on("bison", type="build")
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depends_on("gettext@0.19:", type="build", when="+nls")
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depends_on("gettext@0.19:", type="build", when="@:2.6.0,2.6.4")
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depends_on("help2man", type="build", when="@:2.6.0,2.6.4")
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depends_on("findutils", type="build")
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depends_on("diffutils", type="build")
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# Older tarballs don't come with a configure script and the patch for
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# 2.6.4 touches configure
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depends_on("m4", type="build")
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depends_on("autoconf", type="build", when="@:2.6.0,2.6.4")
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depends_on("automake", type="build", when="@:2.6.0,2.6.4")
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depends_on("libtool", type="build", when="@:2.6.0,2.6.4")
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# 2.6.4 fails to compile with newer versions of gcc/glibc, see:
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# - https://github.com/spack/spack/issues/8152
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# - https://github.com/spack/spack/issues/6942
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# - https://github.com/westes/flex/issues/241
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patch(
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"https://github.com/westes/flex/commit/24fd0551333e7eded87b64dd36062da3df2f6380.patch?full_index=1",
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sha256="f8b85a00849bfb58c9b68e177b369f1e060ed8758253ff8daa57a873eae7b7a5",
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when="@2.6.4",
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)
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def flag_handler(self, name, flags):
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spec = self.spec
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iflags = []
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if name == "cflags":
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if spec.satisfies("%oneapi"):
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iflags.append("-Wno-error=implicit-function-declaration")
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return (iflags, None, None)
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@classmethod
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def determine_version(cls, exe):
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output = Executable(exe)("--version", output=str, error=str)
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match = re.search(r"flex\s+(\S+)", output)
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return match.group(1) if match else None
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@classmethod
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def determine_variants(cls, exes, version):
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results = []
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for exe in exes:
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variants = ""
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path = os.path.dirname(exe)
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if "lex" in os.listdir(path):
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variants += "+lex"
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else:
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variants += "~lex"
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results.append(variants)
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return results
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@when("@:2.6.0,2.6.4")
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def autoreconf(self, spec, prefix):
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autogen = Executable("./autogen.sh")
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autogen()
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@property
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def force_autoreconf(self):
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# The patch for 2.6.4 touches configure
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return self.spec.satisfies("@2.6.4")
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def url_for_version(self, version):
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url = "https://github.com/westes/flex"
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if version >= Version("2.6.1"):
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url += "/releases/download/v{0}/flex-{0}.tar.gz".format(version)
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elif version == Version("2.6.0"):
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url += "/archive/v{0}.tar.gz".format(version)
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elif version >= Version("2.5.37"):
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url += "/archive/flex-{0}.tar.gz".format(version)
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else:
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url += "/archive/flex-{0}.tar.gz".format(version.dashed)
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return url
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def configure_args(self):
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args = []
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args += self.enable_or_disable("nls")
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return args
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@run_after("install", when="+lex")
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def symlink_lex(self):
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"""Install symlinks for lex compatibility."""
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dso = dso_suffix
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for dir, flex, lex in (
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(self.prefix.bin, "flex", "lex"),
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(self.prefix.lib, "libfl.a", "libl.a"),
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(self.prefix.lib, "libfl." + dso, "libl." + dso),
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(self.prefix.lib64, "libfl.a", "libl.a"),
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(self.prefix.lib64, "libfl." + dso, "libl." + dso),
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):
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if os.path.isdir(dir):
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with working_dir(dir):
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if os.path.isfile(flex) and not os.path.lexists(lex):
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symlink(flex, lex)
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