From b2a1f5cbd54387fe23725320134ae1ffb69a389d Mon Sep 17 00:00:00 2001
From: Doug MacEachern <dougm@hyperic.com>
Date: Tue, 24 Feb 2009 19:07:32 -0800
Subject: [PATCH] sharable build utils

---
 bindings/SigarBuild.pm | 132 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 132 insertions(+)
 create mode 100644 bindings/SigarBuild.pm

diff --git a/bindings/SigarBuild.pm b/bindings/SigarBuild.pm
new file mode 100644
index 00000000..c77cbc82
--- /dev/null
+++ b/bindings/SigarBuild.pm
@@ -0,0 +1,132 @@
+package SigarBuild;
+
+use strict;
+use Exporter;
+use File::Basename qw(basename);
+
+use vars qw(@ISA @EXPORT);
+@ISA = qw(Exporter);
+@EXPORT = qw(cppflags ldflags libs os src inline_src);
+
+sub flags {
+    my $os = lc $^O;
+    my $is_win32 = 0;
+    my (@cppflags, @ldflags, @libs);
+    if ($os =~ /(win32)/) {
+        $os = $1;
+        $is_win32 = 1;
+        @cppflags = ('-DWIN32');
+        @libs = qw(kernel32 user32 advapi32 ws2_32 netapi32 shell32 pdh version);
+    }
+    elsif ($os =~ /(linux)/) {
+        $os = $1;
+    }
+    elsif ($os =~ /(hpux)/) {
+        $os = $1;
+        @libs = qw(nsl nm);
+    }
+    elsif ($os =~ /(aix)/) {
+        $os = $1;
+        @libs = qw(odm cfg perfstat);
+    }
+    elsif ($os =~ /(solaris)/) {
+        $os = $1;
+        @libs = qw(nsl socket kstat);
+    }
+    elsif ($os =~ /(darwin)/) {
+        $os = $1;
+        my(@sdks) = reverse sort </Developer/SDKs/MacOSX10.*.sdk>;
+        my $sdk;
+        if (@sdks == 0) {
+            die
+              "Xcode Developer Tools not installed\n".
+              "Download from http://developer.apple.com/technology/xcode.html";
+        }
+        else {
+            #print "Available SDKs...\n(*) " . join("\n    ", @sdks) . "\n";
+            $sdk = $sdks[0];
+        }
+        @cppflags = ('-DDARWIN',
+                     "-I/Developer/Headers/FlatCarbon -isysroot $sdk");
+        @ldflags = ("-Wl,-syslibroot,$sdk",
+                    '-framework CoreServices',
+                    '-framework IOKit');
+        if (-e "/usr/local/libproc.h") {
+            push @cppflags, '-DDARWIN_HAS_LIBPROC_H';
+        }
+    }
+    elsif ($os =~ /bsd/) {
+        $os = 'darwin';
+        @libs = qw(kvm);
+    }
+
+    push @cppflags,
+      '-I../../include',
+      "-I../../src/os/$os";
+
+    unless ($is_win32) {
+        push @cppflags, '-U_FILE_OFFSET_BITS';
+    }
+
+    my(@src) = (<../../src/*.c>, <../../src/os/$os/*.c>);
+
+    return {
+        is_win32 => $is_win32,
+        os => $os,
+        libs => \@libs,
+        cppflags => \@cppflags,
+        ldflags => \@ldflags,
+        src => \@src,
+    };
+}
+
+#perl -Mlib=.. -MSigarBuild -e cppflags
+sub cppflags {
+    print join ' ', @{ flags()->{cppflags} };
+}
+
+sub ldflags {
+    print join ' ', @{ flags()->{ldflags} };
+}
+
+sub libs {
+    print join ' ', @{ flags()->{libs} };
+}
+
+sub os {
+    print flags()->{os};
+}
+
+sub src {
+    print join ' ', @{ flags()->{src} };
+}
+
+sub inline_src {
+    my $stdout = @_ ? 0 : 1;
+    my $flags = shift || flags();
+    my $src = $flags->{src};
+    my(@files);
+    #unlink symlinks incase of nfs shared dir...
+    for my $file (grep { -l } <*.c>) {
+        unlink $file;
+    }
+    for my $file (@$src) {
+        my $cf = basename $file;
+        push @files, $cf;
+        if ($flags->{is_win32}) {
+            copy($file, $cf);
+        }
+        else {
+            symlink($file, $cf) unless -e $cf;
+        }
+    }
+    if ($stdout) {
+        print join ' ', @files;
+    }
+    else {
+        return @files;
+    }
+}
+
+1;
+__END__