# See lib/ExtUtils/MakeMaker.pm for details of how to influence
# the contents of the Makefile that is written.
use 5.005;
use ExtUtils::MakeMaker;
# add a number of tests to stop the smoke testers from reporting Failed
# in unsupported environments
#
print "Checking for Microsoft Windows... (not supported)\n";
if ( $^O =~ /MSWin32/ ) {
   die q{ 
   
   OS unsupported

   Sys::SigAction is not Supported on on $^O operating systems
   if you can make all or most of the tests work on this OS, then 
   please send patches to me, and I will consider them for a new 
   release that supports $^O.

   Note that smoke testers have had successful results in a Cygwin
   environment however.  So if you want to write scripts using
   signals on a Win32 environment consider Cygwin Bash.

   Lincoln
   };
}

print "Checking for multi-threaded Perl... (warning)\n";
use Config;
eval "use threads";
#belt and suspenders....
if ( ! $@ || $Config{usethreads} || $Config{useithreads} || $Config{use5005threads} ) {
   warn q{ 
   
   Using Signals in a multi-thread perl application is unsupported 
   by Sys::SigAction.

   Sys::SigAction is not Supported on multi-threaded perls.

   Read the following from perldoc perlthrtut:

      ...mixing signals and threads should not be attempted.  
      Implementations are platform-dependent, and even the 
      POSIX semantics may not be what you expect (and Perl
      doesn't even give you the full POSIX API).

   You are on your own...

   Lincoln

   };
}

print "Checking support for signals... (required)\n";
if ( ! defined $Config{sig_name} ) {
   die q{
       Signals are not supported in this OS or perl version.
   }
}

#is sigaction enabled?
print "Checking support for POSIX::sigaction... (required)\n";
if ( ( $] >= 5.008 ) && 
   ! ( $Config{useposix} && $Config{d_sigaction} ) ) {
   die q{ 
   
   This perl is not supported.
   Perl must be built with 'useposix' and 'sigaction' defined.

   Lincoln

   };
}

print "Checking for armv5tejl... (not supported)\n";
#belt and suspenders....
if ( $Config{archname} =~ m/armv5tejl/ ) {
   die q{

   Sys::SigAction is not supported on armv5tejl systems.
   I have communicated with the smoke tester on this OS, 
   and we believe that the base perl implementation of 
   POSIX:sigaction is probably the root cause.

   if you want to use this module anyway, or work on getting
   it supported by fixing the perl port, you can uncomment out
   this section of Makefile.PL to build Sys::SigAction.

   Lincoln
   };
}

#ok... enough defensiveness... 
WriteMakefile(
    'NAME'		=> 'Sys::SigAction',
    'VERSION_FROM'	=> 'lib/Sys/SigAction.pm', # finds $VERSION
    'PREREQ_PM'		=> {
       'Test::More'  =>  0
       ,POSIX => 0 
    }, # e.g., Module::Name => 1.1
    ABSTRACT_FROM => 'lib/Sys/SigAction.pm', # retrieve abstract from module
    AUTHOR     => 'Lincoln A. Baxter <lab-at-lincolnbaxter-dot-com>' 
);