File libffi.yaml of Package libffi

Name: libffi
Summary: A portable foreign function interface library
Version: 3.0.13
Release: 1
Group: System/Libraries
License: BSD
URL: http://sourceware.org/libffi
Sources:
    - ftp://sourceware.org/pub/libffi/libffi-%{version}.tar.gz
Patches:
    - includedir.patch
Description: |
    Compilers for high level languages generate code that follow certain
    conventions.  These conventions are necessary, in part, for separate
    compilation to work.  One such convention is the "calling convention".
    The calling convention is a set of assumptions made by the compiler
    about where function arguments will be found on entry to a function.  A
    calling convention also specifies where the return value for a function
    is found.  
    
    Some programs may not know at the time of compilation what arguments
    are to be passed to a function.  For instance, an interpreter may be
    told at run-time about the number and types of arguments used to call a
    given function.  `Libffi' can be used in such programs to provide a
    bridge from the interpreter program to compiled code.
    
    The `libffi' library provides a portable, high level programming
    interface to various calling conventions.  This allows a programmer to
    call any function specified by a call interface description at run time.
    
    FFI stands for Foreign Function Interface.  A foreign function
    interface is the popular name for the interface that allows code
    written in one language to call code written in another language.  The
    `libffi' library really only provides the lowest, machine dependent
    layer of a fully featured foreign function interface.  A layer must
    exist above `libffi' that handles type conversions for values passed
    between the two languages.

Configure: reconfigure
ConfigOptions:
    - --includedir=%{_includedir}
SubPackages:
    - Name: devel
      Summary: Development files for %{name}
      Group: Development/Libraries
      Description: |
          The %{name}-devel package contains libraries and header files for
          developing applications that use %{name}.