Module: Stdenv Private

Includes:
SharedEnvExtension
Defined in:
extend/os/mac/extend/ENV/std.rb,
extend/os/linux/extend/ENV/std.rb,
extend/ENV/std.rb

This module is part of a private API. This module may only be used in the Homebrew/brew repository. Third parties should avoid using this module if possible, as it may be removed or changed without warning.

Constant Summary

Constants included from CompilerConstants

CompilerConstants::COMPILERS, CompilerConstants::COMPILER_SYMBOL_MAP, CompilerConstants::GNU_GCC_REGEXP, CompilerConstants::GNU_GCC_VERSIONS

Instance Method Summary collapse

Methods included from SharedEnvExtension

#[]=, #append, #append_path, #append_to_cccfg, #append_to_cflags, #cc, #cflags, #compiler, #cppflags, #cxx, #cxxflags, #effective_arch, #fc, #fcflags, #fflags, #fortran, #ldflags, #make_jobs, #no_fixup_chains_support?, #no_weak_imports_support?, #permit_arch_flags, #prepend, #prepend_create_path, #prepend_path, #refurbish_args, #remove, #remove_cc_etc, #remove_from_cflags

Instance Method Details

#clang ⇒ void

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

This method returns an undefined value.



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# File 'extend/ENV/std.rb', line 130

def clang
  super
  replace_in_cflags(/-Xarch_#{Hardware::CPU.arch_32_bit} (-march=\S*)/, '\1')
  map = Hardware::CPU.optimization_flags.dup
  if DevelopmentTools.clang_build_version < 700
    # Clang mistakenly enables AES-NI on plain Nehalem
    map[:nehalem] = "-march=nehalem -Xclang -target-feature -Xclang -aes"
  end
  set_cpu_cflags(map)
end

#cxx11 ⇒ void

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

This method returns an undefined value.



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# File 'extend/ENV/std.rb', line 142

def cxx11
  append "CXX", "-std=c++11"
  libcxx
end

#deparallelize(&block) ⇒ T.untyped

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

Removes the MAKEFLAGS environment variable, causing make to use a single job. This is useful for makefiles with race conditions. When passed a block, MAKEFLAGS is removed only for the duration of the block and is restored after its completion.

Parameters:

  • block (T.proc.returns(T.untyped))

Returns:

  • (T.untyped) 


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# File 'extend/ENV/std.rb', line 87

def deparallelize(&block)
  old = self["MAKEFLAGS"]
  remove "MAKEFLAGS", /-j\d+/
  if block
    begin
      yield
    ensure
      self["MAKEFLAGS"] = old
    end
  end

  old
end

#determine_pkg_config_libdir ⇒ PATH?

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

Returns:



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# File 'extend/ENV/std.rb', line 74

def determine_pkg_config_libdir
  PATH.new(
    HOMEBREW_PREFIX/"lib/pkgconfig",
    HOMEBREW_PREFIX/"share/pkgconfig",
    homebrew_extra_pkg_config_paths,
    "/usr/lib/pkgconfig",
  ).existing
end

#libcxx ⇒ void

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

This method returns an undefined value.



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# File 'extend/ENV/std.rb', line 148

def libcxx
  append "CXX", "-stdlib=libc++" if compiler == :clang
end

#libxml2 ⇒ Object

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

Some configure scripts won't find libxml2 without help. This is a no-op with macOS SDK 10.15.4 and later.



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# File 'extend/os/mac/extend/ENV/std.rb', line 100

def libxml2
  sdk = self["SDKROOT"] || MacOS.sdk_path_if_needed
  if !sdk
    append "CPPFLAGS", "-I/usr/include/libxml2"
  elsif !Pathname("#{sdk}/usr/include/libxml").directory?
    # Use the includes form the sdk
    append "CPPFLAGS", "-I#{sdk}/usr/include/libxml2"
  end
end

#macosxsdk(version = nil, formula: nil, testing_formula: false) ⇒ Object

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning. 



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# File 'extend/os/mac/extend/ENV/std.rb', line 66

def macosxsdk(version = nil, formula: nil, testing_formula: false)
  # Sets all needed `lib` and `include` dirs to `CFLAGS`, `CPPFLAGS`, `LDFLAGS`.
  remove_macosxsdk
  min_version = version || MacOS.version
  append_to_cflags("-mmacosx-version-min=#{min_version}")
  self["CPATH"] = "#{HOMEBREW_PREFIX}/include"
  prepend "LDFLAGS", "-L#{HOMEBREW_PREFIX}/lib"

  sdk = if formula
    MacOS.sdk_for_formula(formula, version, check_only_runtime_requirements: testing_formula)
  else
    MacOS.sdk(version)
  end
  return if !MacOS.sdk_root_needed? && sdk&.source != :xcode

  Homebrew::Diagnostic.checks(:fatal_setup_build_environment_checks)
  sdk = sdk.path

  # Extra setup to support Xcode 4.3+ without CLT.
  self["SDKROOT"] = sdk
  # Tell clang/gcc where system include's are:
  append_path "CPATH", "#{sdk}/usr/include"
  # The -isysroot is needed, too, because of the Frameworks
  append_to_cflags "-isysroot#{sdk}"
  append "CPPFLAGS", "-isysroot#{sdk}"
  # And the linker needs to find sdk/usr/lib
  append "LDFLAGS", "-isysroot#{sdk}"
  # Needed to build cmake itself and perhaps some cmake projects:
  append_path "CMAKE_PREFIX_PATH", "#{sdk}/usr"
  append_path "CMAKE_FRAMEWORK_PATH", "#{sdk}/System/Library/Frameworks"
end

#no_fixup_chains ⇒ Object

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning. 



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# File 'extend/os/mac/extend/ENV/std.rb', line 114

def no_fixup_chains
  append "LDFLAGS", "-Wl,-no_fixup_chains" if no_fixup_chains_support?
end

#no_weak_imports ⇒ Object

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning. 



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# File 'extend/os/mac/extend/ENV/std.rb', line 110

def no_weak_imports
  append "LDFLAGS", "-Wl,-no_weak_imports" if no_weak_imports_support?
end

#remove_macosxsdk(version = nil) ⇒ Object

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning. 



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# File 'extend/os/mac/extend/ENV/std.rb', line 43

def remove_macosxsdk(version = nil)
  # Clear all `lib` and `include` dirs from `CFLAGS`, `CPPFLAGS`, `LDFLAGS` that were
  # previously added by `macosxsdk`.
  remove_from_cflags(/ ?-mmacosx-version-min=\d+\.\d+/)
  delete("CPATH")
  remove "LDFLAGS", "-L#{HOMEBREW_PREFIX}/lib"

  sdk = self["SDKROOT"] || MacOS.sdk_path_if_needed(version)
  return unless sdk

  delete("SDKROOT")
  remove_from_cflags "-isysroot#{sdk}"
  remove "CPPFLAGS", "-isysroot#{sdk}"
  remove "LDFLAGS", "-isysroot#{sdk}"
  if HOMEBREW_PREFIX.to_s == "/usr/local"
    delete("CMAKE_PREFIX_PATH")
  else
    # It was set in `setup_build_environment`, so we have to restore it here.
    self["CMAKE_PREFIX_PATH"] = HOMEBREW_PREFIX.to_s
  end
  remove "CMAKE_FRAMEWORK_PATH", "#{sdk}/System/Library/Frameworks"
end

#setup_build_environment(formula: nil, cc: nil, build_bottle: false, bottle_arch: nil, testing_formula: false, debug_symbols: false) ⇒ void Also known as: generic_setup_build_environment

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

This method returns an undefined value.

Parameters:

  • formula (Formula, nil) (defaults to: nil)
  • cc (String, nil) (defaults to: nil)
  • build_bottle (Boolean, nil) (defaults to: false)
  • bottle_arch (String, nil) (defaults to: nil)
  • testing_formula (Boolean) (defaults to: false)
  • debug_symbols (Boolean, nil) (defaults to: false) 


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# File 'extend/os/mac/extend/ENV/std.rb', line 23

def setup_build_environment(formula: nil, cc: nil, build_bottle: false, bottle_arch: nil, testing_formula: false,
                            debug_symbols: false)
  generic_setup_build_environment(formula:, cc:, build_bottle:, bottle_arch:,
                                  testing_formula:, debug_symbols:)

  append "LDFLAGS", "-Wl,-headerpad_max_install_names"

  # `sed` is strict and errors out when it encounters files with mixed character sets.
  delete("LC_ALL")
  self["LC_CTYPE"] = "C"

  # Add `lib` and `include` etc. from the current `macosxsdk` to compiler flags:
  macosxsdk(formula: @formula, testing_formula:)

  return unless MacOS::Xcode.without_clt?

  append_path "PATH", "#{MacOS::Xcode.prefix}/usr/bin"
  append_path "PATH", "#{MacOS::Xcode.toolchain_path}/usr/bin"
end