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formula: tweak more depends_on examples.

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Mike McQuaid 2018-01-11 13:33:54 +00:00 committed by GitHub
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1 changed files with 3 additions and 11 deletions
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Library/Homebrew/formula.rb
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@ -2194,29 +2194,21 @@ class Formula
# <pre># If a dependency is only needed in certain cases:
# depends_on "sqlite" if MacOS.version == :leopard
# depends_on :xcode # If the formula really needs full Xcode.
# depends_on :tex # Homebrew does not provide a Tex Distribution.
# depends_on :fortran # Checks that `gfortran` is available or `FC` is set.
# depends_on :mpi => :cc # Needs MPI with `cc`
# depends_on :mpi => [:cc, :cxx, :optional] # Is optional. MPI with `cc` and `cxx`.
# depends_on :macos => :lion # Needs at least OS X Lion (10.7).
# depends_on :apr # If a formula requires the CLT-provided apr library to exist.
# depends_on :arch => :intel # If this formula only builds on Intel architecture.
# depends_on :arch => :x86_64 # If this formula only builds on Intel x86 64-bit.
# depends_on :arch => :ppc # Only builds on PowerPC?
# depends_on :ld64 # Sometimes ld fails on `MacOS.version < :leopard`. Then use this.
# depends_on :x11 # X11/XQuartz components.
# depends_on :x11 => :optional # X11/XQuartz components.
# depends_on :osxfuse # Permits the use of the upstream signed binary or our source package.
# depends_on :tuntap # Does the same thing as above. This is vital for Yosemite and above.
# depends_on "mysql" => :recommended</pre>
# <pre># It is possible to only depend on something if
# # `build.with?` or `build.without? "another_formula"`:
# depends_on "mysql" # allows brewed or external mysql to be used
# depends_on "postgresql" if build.without? "sqlite"
# depends_on "hg" # Mercurial (external or brewed) is needed</pre>
#
# <pre># If any Python >= 2.7 < 3.x is okay (either from macOS or brewed):
# <pre># Python 2.7:
# depends_on "python"</pre>
# <pre># to depend on Python >= 2.7 but use system Python where possible
# <pre># Python 2.7 but use system Python where possible
# depends_on "python" if MacOS.version <= :snow_leopard</pre>
# <pre># Python 3.x if the `--with-python3` is given to `brew install example`
# depends_on "python3" => :optional</pre>