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.

Instance Method Summary collapse

Methods included from SharedEnvExtension

#append, #append_path, #append_to_cccfg, #append_to_cflags, #cc, #cflags, #compiler, #cppflags, #cxx, #cxxflags, #fc, #fcflags, #fflags, #fortran, #ldflags, #no_weak_imports_support?, #permit_arch_flags, #prepend, #prepend_create_path, #prepend_path, #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 138

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 150

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

#define_cflags(val) ⇒ 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.

Convenience method to set all C compiler flags in one shot.

Parameters:



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# File 'extend/ENV/std.rb', line 170

def define_cflags(val)
  CC_FLAG_VARS.each { |key| self[key] = val }
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 95

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 82

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

#homebrew_extra_pkg_config_paths ⇒ Array<Pathname>

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 77

def homebrew_extra_pkg_config_paths
  ["#{HOMEBREW_LIBRARY}/Homebrew/os/mac/pkgconfig/#{MacOS.version}"]
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 156

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

#libxml2 ⇒ Object

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 91

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 



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# File 'extend/os/mac/extend/ENV/std.rb', line 57

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

#make_jobs ⇒ Integer

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:

  • (Integer) 


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# File 'extend/ENV/std.rb', line 196

def make_jobs
  Homebrew::EnvConfig.make_jobs.to_i
end

#no_weak_imports ⇒ Object 



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# File 'extend/os/mac/extend/ENV/std.rb', line 101

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

#remove_macosxsdk(version = nil) ⇒ Object 



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# File 'extend/os/mac/extend/ENV/std.rb', line 34

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