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Makefile.PL
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Makefile.PL
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use strict;
use warnings;
use ExtUtils::MakeMaker;
use ExtUtils::Liblist;
use Data::Dumper;
use Config;
# See lib/ExtUtils/MakeMaker.pm for details of how to influence
# the contents of the Makefile that is written.
# Ensure deterministic output
$Data::Dumper::Sortkeys = 1;
# Supported windowing interfaces
our $is_valid_interface =
{
'AGL' => 'Default GLUT framework on Mac OS X',
'FREEGLUT' => 'FreeGLUT, preferred over GLUT',
'GLUT' => 'GLUT; often really FreeGLUT on Linux',
'GLX' => 'Default GLX+X11 on Linux; use XQuartz on Mac OS X',
'W32API' => 'Uses WGL+FreeGLUT on CYGWIN, instead of GLX+FreeGLUT',
'WGL' => 'Same as W32API',
};
# Makefile.PL Usage
sub Usage
{
print "\n@_\n\n";
print qq
{
USAGE: perl Makefile.PL [OPTIONS]
OPTIONS include:
help This help message
verbose Display additional status info, can be
repeated for more verbosity
dist=NO_EXCLUSIONS Build with no OpenGL Extension exclusions
interface=XFACE Build for a specific windowing interface
Currently supports:
};
print "\n";
foreach my $xface (sort keys %$is_valid_interface)
{
print substr(" $xface ",0,24).
"$is_valid_interface->{$xface}\n";
}
print "\n";
exit(0);
}
if (@ARGV and $ARGV[0] =~ m|^([-/]*)?h(elp)?|i)
{
Usage();
}
else
{
print "\nrun as `perl Makefile.PL help` to show user options\n";
}
our $verbose = 0;
our $IS_MINGW = 0;
our $IS_STRAWBERRY = 0;
our $IS_CYGWIN;
our $IS_W32API;
my $INCS;
my $prepare_success = eval {
# Get debugging flags
if ( grep { if (m/^verbose/i) { $verbose++; 1; } else { 0; } } @ARGV )
{
# Strip out interface args
@ARGV = grep { !m/^verbose=/i } @ARGV;
}
print "\$verbose set to $verbose" . ($verbose ? "" : " - enable by running as `perl Makefile.PL verbose`");
print "\n\n";
# Get distribution build flags
our $dist_flags = {};
if ( grep { m/^dist=/i } @ARGV )
{
foreach my $arg (@ARGV)
{
$dist_flags->{uc($1)}++ if ($arg =~ m/^dist=(\w+)/i);
}
# Strip out interface args
@ARGV = grep { !m/^dist=/i } @ARGV;
}
# Detect CYGWIN
$IS_CYGWIN = $^O eq 'cygwin';
print "Build platform \$IS_CYGWIN==$IS_CYGWIN\n" if $IS_CYGWIN and $verbose;
$IS_W32API = ($IS_CYGWIN && grep { m/^interface=(W32API|WGL)/i } @ARGV );
print "Build platform \$IS_W32API==$IS_W32API\n" if $IS_W32API and $verbose;
# Detect MINGW
if ($^O eq 'MSWin32' && $Config{cc} =~ /\bgcc/i)
{
$IS_MINGW = 1;
print "Build platform \$IS_MINGW==1" if $verbose;
}
# Detect Strawberry Perl
if ($IS_MINGW)
{
$IS_STRAWBERRY = ($Config{cf_by} =~ m/strawberry-perl/i);
print "Build platform \$IS_STRAWBERRY==$IS_STRAWBERRY\n" if $IS_STRAWBERRY and $verbose;
}
# Look for available libs
our @libdirs = qw
{
-L/usr/lib
-L/usr/lib/i386-linux-gnu
-L/usr/X11R6/lib
-L/opt/X11/lib
-L/usr/local/lib
-L/usr/openwin/lib
-L/opt/csw/lib
-L/usr/local/freeglut/lib
};
our @check_libs = qw
{
-lGL
-lopengl
-lMesaGL
-lGLU
-lglu
-lMesaGLU
-lfreeglut
-lglut3
-lglut
-lGLUT
-lMesaGLUT
};
our $found_libs = get_libs(@libdirs,@check_libs);
die "No OpenGL related libs found\n" if (!scalar($found_libs));
if ($verbose)
{
print "found libs:\n";
foreach my $key (sort keys %$found_libs)
{
print " $key = '$found_libs->{$key}'\n";
}
}
# Check for OpenGL installation
our $DIST_DEFS = get_extensions($found_libs,$dist_flags->{NO_EXCLUSIONS});
# Don't build Makefile if we cannot compile+run glversion
die "unable to determine extensions or no extensions found\n" if !length $DIST_DEFS;
# Get user-specified interface
my $interface_lib;
if ( grep { m/^interface=/i } @ARGV )
{
my @my_argv = @ARGV; # safe copy
my @interface_opts = ();
my $fallback = 0;
foreach my $arg (@my_argv)
{
if ($arg =~ m/^interface=(\w+)/i)
{
my $interface = uc($1);
my $valid_type = $is_valid_interface->{$interface};
if (!$valid_type)
{
Usage("Invalid interface: '$interface'");
next;
}
# test if requested interfaces supported
# !!! Should use lookup table
if ($interface eq 'W32API' or $interface eq 'WGL')
{
if (!$found_libs->{FREEGLUT32} && !$found_libs->{GLUT32})
{
print "W32API interface requires GLUT or FreeGLUT\n";
next;
}
if (!$found_libs->{OPENGL32})
{
print "W32API interface requires OpenGL32.dll\n";
next;
}
if (!$found_libs->{GLU32})
{
print "W32API interface requires GLU32.dll\n";
next;
}
}
elsif ($interface eq 'AGL')
{
if ($^O ne 'darwin' || !$found_libs->{GLUT})
{
print "AGL interface requires GLUT.framework\n";
next;
}
}
elsif ($interface =~ m|GLUT|)
{
if ($interface eq 'FREEGLUT')
{
if (!$found_libs->{FREEGLUT} && !$found_libs->{FREEGLUT32})
{
print "FREEGLUT interface requires FreeGLUT\n";
if ($found_libs->{GLUT})
{
print "Falling back to the GLUT interface\n";
$interface = 'GLUT';
$fallback++;
}
else
{
print "Try installing FREEGLUT first\n";
next;
}
}
}
elsif ($interface eq 'GLUT')
{
if (!$found_libs->{GLUT} && $found_libs->{FREEGLUT})
{
$found_libs->{GLUT} = $found_libs->{FREEGLUT};
}
if (!$found_libs->{GLUT32} && $found_libs->{FREEGLUT32})
{
$found_libs->{GLUT32} = $found_libs->{FREEGLUT32};
}
if ($found_libs->{GLUT})
{
delete($found_libs->{FREEGLUT});
}
if ($found_libs->{GLUT32})
{
delete($found_libs->{FREEGLUT32});
}
if (!$found_libs->{GLUT} && !$found_libs->{GLUT32})
{
print "GLUT interface requires GLUT or FreeGLUT but libs were not found\n";
next;
}
}
else
{
print "Error in interface argument processing\n";
next;
}
}
elsif ($interface eq 'GLX')
{
if (!$found_libs->{GL} && !$found_libs->{MESA} && !$found_libs->{GLX})
{
print "GLX interface requires GLX/X11 but the libraries were not found\n";
next;
}
}
elsif (!$found_libs->{$interface})
{
print "$interface interface not supported\n";
next;
}
push(@interface_opts,$interface);
}
}
my $interfaces = scalar(@interface_opts);
if (!$interfaces)
{
die "ERROR: no supported interfaces found.\n";
}
elsif ($interfaces > 1)
{
die "ERROR: multiple opengl interfaces requested: @interface_opts.\n";
}
($interface_lib) = @interface_opts;
print "User set interface to $interface_lib\n" if ($verbose && !$fallback);
# Strip out interface args
@ARGV = grep { !m/^interface=/i } @ARGV;
}
# Otherwise use available defaults
elsif ($IS_CYGWIN)
{
if ($found_libs->{FREEGLUT})
{
$interface_lib = 'FREEGLUT'; # CYGWIN will use X11 interface by default
}
elsif($found_libs->{GLUT})
{
$interface_lib = 'GLUT';
}
elsif($found_libs->{GLUT32} || $found_libs->{FREEGLUT32})
{
$interface_lib = 'W32API';
}
else
{
die "No suitable OpenGL+GLUT interface found for CYGWIN\n";
}
}
elsif ($^O eq 'darwin' && $found_libs->{GLUT} && !$found_libs->{FREEGLUT})
{
$interface_lib = 'AGL';
}
elsif ($found_libs->{FREEGLUT} || $found_libs->{FREEGLUT32})
{
$interface_lib = 'FREEGLUT';
}
elsif ($found_libs->{GLUT} || $found_libs->{GLUT32})
{
$interface_lib = 'GLUT';
}
else
{
die "FreeGLUT or GLUT libraries were not found, won't build OpenGL module.";
}
print "\nUsing interface: $interface_lib\n\n";
# Marshall compiler defines
our $DEFS = $DIST_DEFS;
if ($IS_STRAWBERRY)
{
delete($found_libs->{'GLX'});
delete($found_libs->{'MESA'});
$found_libs->{'GLU'} = $found_libs->{'GLU32'};
$found_libs->{'GL'} = $found_libs->{'OPENGL32'};
$DEFS .= " -DIS_STRAWBERRY";
}
elsif (($^O eq 'MSWin32') || $IS_W32API || $IS_MINGW)
{
delete($found_libs->{'GLX'});
delete($found_libs->{'MESA'});
$found_libs->{'FREEGLUT'} = $found_libs->{'FREEGLUT32'};
$found_libs->{'GLUT'} = $found_libs->{'GLUT32'};
$found_libs->{'GLU'} = $found_libs->{'GLU32'};
$found_libs->{'GL'} = $found_libs->{'OPENGL32'};
}
elsif($IS_CYGWIN)
{
delete($found_libs->{'FREEGLUT32'});
delete($found_libs->{'GLUT32'});
delete($found_libs->{'GLU32'});
delete($found_libs->{'OPENGL32'});
}
if (0) { # May be not necessary now, see if removing makes a difference
if (!$found_libs->{'GL'})
{
if ($found_libs->{'GLX'})
{
$found_libs->{'GL'} = $found_libs->{'GLX'};
}
elsif ($found_libs->{'MESA'})
{
$found_libs->{'GL'} = $found_libs->{'MESA'};
}
}
}
print "resulting libs:\n" if ($verbose);
foreach my $key (sort keys %$found_libs)
{
next if (!$found_libs->{$key});
$DEFS .= " -DHAVE_$key";
print " $key = '$found_libs->{$key}'\n" if ($verbose);
}
# Configure MakeMaker
my($LIBS,$OPTS,$CLEAN,$LDFROM);
my $EXES = [];
my $DYNS = {};
if ($IS_W32API || (($^O eq 'MSWin32') && !$IS_CYGWIN)) # Win32
{
my $glut_lib = '-lopengl32 -lglu32 ';
if ($interface_lib eq 'GLUT')
{
$glut_lib .= '-lglut32';
}
elsif ($interface_lib eq 'FREEGLUT' and $IS_STRAWBERRY)
{
$glut_lib .= '-lglut';
}
else
{
$glut_lib .= '-LFreeGLUT -lfreeglut';
}
if ($IS_MINGW) # MINGW
{
$LDFROM = $glut_lib;
}
elsif ($IS_W32API) # CYGWIN W32API
{
my $glut = ($found_libs->{FREEGLUT32}) ? $found_libs->{FREEGLUT32} : $found_libs->{GLUT32};
$LIBS = "-L/usr/lib/w32api $glut_lib";
$LDFROM = $glut_lib;
### $INCS = '-I/usr/include/w32api';
$INCS = '-I/usr/include/opengl';
$DEFS .= " -DHAVE_W32API";
$DYNS = { OTHERLDFLAGS => '-Wl,--exclude-symbols,'."\x7F".$glut.'_NULL_THUNK_DATA' };
}
else # Windows VC6
{
$LIBS = $glut_lib;
$OPTS = "/ogity /GDs";
}
# Using a dll as EXES is incorrect for EU::MM, since the EXES here mean
# perl scripts and not windows binaries or DLLs. This puts the DLL in
# blib/bin from whence it should be installed correctly. It is not
# clear that this step is even needed since the freeglut.dll is installed
# by this Makefile.PL if no FreeGLUT is found.
#
## $EXES = ['FreeGLUT/freeglut.dll'];
{
system $^X , qw[-MExtUtils::Command -e mkpath --], qw[blib/arch/auto/OpenGL];
system $^X , qw[-MExtUtils::Command -e cp --], qw[FreeGLUT/freeglut.dll blib/arch/auto/OpenGL/freeglut.dll];
my @other_installs = grep { -e "$_\\freeglut.dll" } split /;/, $ENV{PATH};
if(@other_installs) {
print "\n" ;
print "XXX Other freeglut.dll installed in $_\n" for @other_installs;
print "Please verify whether the other found dll(s) are from older OpenGL.pm installs, and delete them if so!\n\n\n";
sleep 2;
}
}
}
elsif ($interface_lib eq 'AGL') # Mac OS X
{
$INCS = ""; # no include flags required: Apple gcc will automatically pick up the system frameworks
$DEFS .= " -DHAVE_AGL_GLUT -Wno-deprecated-declarations "; # So we know we have glutWMCloseFunc() and glutCheckLoop()
$DYNS = { OTHERLDFLAGS => "-framework OpenGL -framework GLUT" };
}
else # Everyone else
{
my @includes = qw
{
-I/usr/include
-I/usr/include
-I/usr/X11R6/include
-I/opt/X11/include
-I/usr/local/include
-I/usr/openwin/include
-I/opt/csw/include
-I/usr/local/freeglut/include
};
$INCS = "@includes";
# Test for obfuscated GLX
# quite often GLX is in -lGL... Test for GL/glx.h instead...
my $out = cfile_text('GL/glx.h');
# The cpp would not let this macro through. Check for something else
# that still exists after the cpp pass. a typedef, or type would work
my $has_glx = ($out =~ m|GLXContext|);
if ($has_glx)
{
#delete($found_libs->{GLX});
$DEFS .= " -DHAVE_GLX";
}
elsif (!$found_libs->{GLX} && $verbose)
{
print "GLX not found (neither library, nor headers).";
}
# Test for obfuscated Freeglut
# quite often Freeglut is in -lglut... Test for GL/freeglut.h instead...
$out = cfile_text('GL/freeglut.h');
# The cpp would not let this macro through. Check for something else
# that still exists after the cpp pass. a typedef, or type would work
my $has_freeglut = ($out =~ m|glutMainLoopEvent|);
if ($has_freeglut)
{
#delete($found_libs->{GLX});
$DEFS .= " -DHAVE_FREEGLUT -DHAVE_FREEGLUT_H";
$found_libs->{FREEGLUT}="glut";
}
# Marshall libs
my $libs = ' -l'.join(' -l',sort values(%$found_libs));
my @more_libs = qw
{
-lXext
-lXmu
-lXi
-lICE
-lX11
-lstdc++
-lm
};
#-lXIE
$LIBS = "@libdirs $libs @more_libs";
$DEFS .= " -DGL_GLEXT_LEGACY";
# Handle obfuscated gcc
my $no_lgcc = (grep /^NO_LGCC$/, @ARGV);
@ARGV = grep !/^NO_LGCC$/, @ARGV;
if (!$no_lgcc)
{
# This may be a gcc compiler in disguise.
# Should check for gccversion as well.
if ($Config{cc} ne 'gcc' && !$Config{gccversion})
{
my $gcclibdir;
my $gccout = `gcc -v 2>&1`;
if ($gccout =~ /specs from (.*)/) # gcc present
{
($gcclibdir = $1) =~ s,\bspecs\s*$,,;
$LIBS .= " -L$gcclibdir -lgcc";
print STDERR qq
{
#
### Non-gcc compiler, and gcc is present.
### Adding -lgcc as a dependency: your OpenGL libraries may be gcc-compiled.
### Use NO_LGCC command-line option to disable this.
#
};
}
}
}
}
# Check for gcc version 3.2.3 and turn off OPTIMIZE to work
# around compiler bug reported via cpan testers reports
if ( defined( $Config{gccversion} ) and $Config{gccversion} =~ /^3\.2\.3 / ) {
$OPTS = '-O0'; # turn off optimization for gcc 3.2.3
}
clean_incs( $INCS );
clean_libs( $LIBS );
# This is the final build configuration
my $build_config =
{
'NAME' => 'OpenGL',
'VERSION_FROM'=> 'OpenGL.pm',
'PM' =>
{
'OpenGL.pm' => '$(INST_LIBDIR)/OpenGL.pm',
'OpenGL.pod'=> '$(INST_LIBDIR)/OpenGL.pod',
'Array.pod'=> '$(INST_LIBDIR)/OpenGL/Array.pod',
'Tessellation.pod'=> '$(INST_LIBDIR)/OpenGL/Tessellation.pod',
'Config.pm' => '$(INST_LIBDIR)/OpenGL/Config.pm'
},
'PREREQ_PM' => { 'Test::More' => 0 },
'AUTHOR' => "Chris Marshall ".'<chm at cpan dot org>',
'OBJECT' => '$(BASEEXT)$(OBJ_EXT) gl_util$(OBJ_EXT) pogl_const$(OBJ_EXT) pogl_gl_top$(OBJ_EXT) pogl_glu$(OBJ_EXT) pogl_rpn$(OBJ_EXT) pogl_matrix$(OBJ_EXT) pogl_glut$(OBJ_EXT) pogl_gl_Accu_GetM$(OBJ_EXT) pogl_gl_GetP_Pass$(OBJ_EXT) pogl_gl_Mult_Prog$(OBJ_EXT) pogl_gl_Pixe_Ver2$(OBJ_EXT) pogl_gl_Prog_Clam$(OBJ_EXT) pogl_gl_Tex2_Draw$(OBJ_EXT) pogl_gl_Ver3_Tex1$(OBJ_EXT) pogl_gl_Vert_Multi$(OBJ_EXT)',
'XSPROTOARG' => '-noprototypes',
'DEFINE' => $DEFS,
'INC' => $INCS,
'LIBS' => $LIBS,
'dynamic_lib' => $DYNS,
'LDFROM' => '$(OBJECT) '.(defined($LDFROM)?$LDFROM:''),
'META_MERGE' => {
"meta-spec" => { version => 2 },
abstract => 'Perl bindings to the OpenGL API, GLU, and GLUT/FreeGLUT',
resources => {
homepage => 'http://sourceforge.net/projects/pogl/',
bugtracker => {web=>'https://github.com/Perl-GPU/pogl/issues'},
repository => {
url => 'git://github.com/Perl-GPU/pogl.git',
type => 'git',
web => 'https://github.com/Perl-GPU/pogl',
},
x_IRC => 'irc://irc.perl.org/#pogl',
},
},
'EXE_FILES' => $EXES,
'OPTIMIZE' => $OPTS,
'clean' =>
{
FILES =>
"Config.pm ".
"gl_exclude.h ".
"utils/glversion.txt ".
"utils/glversion$Config{exe_ext} ".
"utils/glversion$Config{obj_ext}"
}
};
print "\nMakeMaker configuration:\n" if $verbose;
close(CONF) if (open(CONF,">Config.pm")); # Generate place-holder Config.pm
WriteMakefile( %$build_config ); # Generate the Makefile
WriteConfigPM( $build_config ); # Regenerate final Config.pm
if ($found_libs->{GLX} && $ENV{TERM} ne 'xterm')
{
print "\nThis configuration should be built under an X11 shell\n\n";
}
1; # to signal that the eval didn't bail out early
};
die "$@\nOS unsupported\n" if !$prepare_success;
exit 0;
# test header files for extensions
sub cfile_text
{
my($filename) = @_;
# Use $Config{cpprun}, instead of $Config{cpp}. cpp is simply set to
# 'cpp' after Configure has run, which is not useful, since it lives
# in /lib/ on many systems, which is normally not on the path. This
# is documented, but silly behaviour. $Config{cpprun} is what is
# documented to be set to a cpp that will take stuff on stdin
my $cmd = "echo '\#include \"$filename\"' | ".
"$Config{cpprun} $INCS $Config{cppflags} $Config{cppminus} 2>&1";
return `$cmd`;
}
# Find OpenGL-related Libs
sub get_libs
{
my @glx_libs = @_;
my $found = {};
my $libs;
# Mac OS X
if ($^O eq 'darwin' && -d '/System/Library/Frameworks/OpenGL.framework')
{
$found->{GL} = 'OpenGL.framework';
$found->{GLU} = 'AGL.framework';
if (-e '/opt/X11/lib/libglut.3.dylib')
{
$found->{FREEGLUT} = 'glut';
}
else
{
$found->{GLUT} = 'GLUT.framework';
}
return $found;
}
# Win32
if ($IS_STRAWBERRY)
{
# libs for strawberry perl go here
$found->{FREEGLUT} = 'glut';
$found->{OPENGL32} = 'opengl32';
$found->{GLU32} = 'glu32';
}
elsif (($^O eq 'MSWin32') || $IS_W32API)
{
my $paths = $ENV{PATH};
$paths =~ s|\\|/|g;
my $sep = $IS_W32API ? ':' : ';';
my @paths = split($sep.'\s*',$paths);
my $sysroot = $ENV{'SYSTEMROOT'};
@paths = ("$sysroot/system32",@paths) if ($sysroot);
$libs = {OPENGL32=>'opengl32.dll',GLU32=>'glu32.dll',GLUT32=>'glut32.dll',FREEGLUT32=>'freeglut.dll'};
foreach my $key (sort keys %$libs)
{
foreach my $path (@paths)
{
$path =~ s|/$||;
my $lib = $libs->{$key};
next if (!-e "$path/$lib");
$lib =~ s/\.dll$//i;
if ( $lib eq "freeglut" ) {
my @p = split m@[/\\]@, $Config{installsitebin};
next if $path eq join "/", @p or $path eq join "\\", @p;
}
# print " $key: $lib\n";
$found->{$key} = $lib;
last;
}
}
# Install FreeGLUT if not found
if (!$found->{FREEGLUT32} and !$IS_STRAWBERRY)
{
my $dll_dir = "utils";
my $exec;
if ($IS_W32API)
{
$dll_dir = '/usr/local/bin' if ($dll_dir eq '/usr/bin');
$exec = "cp FreeGLUT/freeglut.dll $dll_dir";
}
else
{
$exec = "copy FreeGLUT\\freeglut.dll $dll_dir";
}
`$exec`;
if (! -x "$dll_dir/freeglut.dll")
{
my $mode = (stat("$dll_dir/freeglut.dll"))[2];
my $perm = $mode & 07777;
print "freeglut.dll not executable (perms=%4o), changing permissions...\n";
chmod $perm|0755, "$dll_dir/freeglut.dll" or warn "Error changing freeglut.dll perms: $!";
}
if (-e "$dll_dir/freeglut.dll")
{
print "Installed freeglut.dll at $dll_dir\n";
$found->{FREEGLUT32} = 'freeglut'
}
else
{
print "Unable to install freeglut.dll to $dll_dir\n";
print "Try manually copying FreeGLUT/freeglut.dll to a folder in your PATH.\n";
}
}
return $found if (!$IS_W32API);
}
# Everyone else
($libs) = do {
local $SIG{__WARN__} = sub {
my ( $warning ) = @_;
return if $warning =~ /Warning \(mostly harmless\): No library found for/;
warn $warning;
};
ExtUtils::Liblist->ext(join(' ',@glx_libs),0);
};
foreach my $lib (split(' ',$libs))
{
next if ($lib =~ m|^-L|);
$lib =~ s/^-l//;
#print " $lib\n";
if ($lib =~ m|([\w]*freeglut[\w]*)|i)
{
$found->{FREEGLUT} = $1;
}
elsif ($lib =~ m|([\w]*glut[\w]*)$|i)
{
$found->{GLUT} = $1;
}
elsif ($lib =~ m|([\w]*glu[\w]*)$|i)
{
$found->{GLU} = $1;
}
elsif ($lib =~ m|([\w-]*glx)$|i)
{
$found->{GLX} = $1;
}
elsif ($lib =~ m|([\w]*gl)$|i)
{
$found->{GL} = $1;
}
if ($lib =~ m|([\w]*mesa(gl)?.*)|i)
{
$found->{MESA} = $1;
}
}
return $found;
}
# Test for available OpenGL Extensions
sub get_extensions
{
my($found,$no_excl) = @_;
print "Testing for OpenGL Extensions\n" if ($verbose);
# clean up previous output files
my $exc_file = 'gl_exclude.h';
unlink($exc_file) if (-e $exc_file);
my $glv_file = 'utils/glversion.txt';
unlink($glv_file) if (-e $glv_file);
# Only run the rest if GLUT is installed
print "Testing GLUT version\n" if ($verbose);
my($lib,$def);
if ($found->{FREEGLUT32} || $found->{FREEGLUT})
{
$lib = $found->{FREEGLUT32} || $found->{FREEGLUT};
$def = "HAVE_FREEGLUT";
}
elsif ($found->{GLUT32} || $found->{GLUT})
{
$lib = $found->{GLUT32} || $found->{GLUT};
$def = "HAVE_GLUT";
}
elsif ($verbose)
{
print "GLUT not found\n";
}
# Platform-specific makefiles for glversion
my $make_ver;
if ($IS_STRAWBERRY)
{
$make_ver = "&strawberry.bat";
print "strawberry glversion: '$make_ver'\n" if $verbose>1;
}
elsif ($IS_MINGW)
{
$make_ver = "&mingw.bat";
print "mingw glversion: '$make_ver'\n" if $verbose>1;
}
elsif ($IS_W32API)
{
$make_ver = ";make -f Makefile.cygwin " . (length($lib) ? "GLUT_LIB=$lib " : "") . (length($def) ? "GLUT_DEF=$def " : "");
print "cygwin glversion: '$make_ver'\n" if $verbose>1;
}
elsif ($^O eq 'MSWin32')
{
$make_ver = '&nmake -f makefile.mak ' . (length($def) ? "GLUT_DEF=$def " : "");
print "MSWin32 glversion: '$make_ver'\n" if $verbose>1;
}
elsif ($^O eq 'darwin')
{
$make_ver = ";make -f Makefile.macosx " . (length($lib) ? "GLUT_LIB=$lib " : "") . (length($def) ? "GLUT_DEF=$def " : "");
print "MacOSX glversion: '$make_ver'\n" if $verbose>1;
}
else
{
if ($ENV{TERM} ne 'xterm')
{
print "\nIn order to test your GPU's capabilities, run this make under an X11 shell\n\n";
}
$make_ver = ";make -f Makefile " . (length($lib) ? "GLUT_LIB=$lib " : "") . (length($def) ? "GLUT_DEF=$def " : "");
print "glversion: '$make_ver'\n" if $verbose>1;
}
my $exec = 'cd utils'."$make_ver clean".$make_ver;
print "glversion: $exec\n" if ($verbose);
my $stat = `$exec`;
print "\n$stat\n\n" if ($verbose);
unlink "utils/freeglut.dll" or die "could not remove temporary freeglut: $!" if -f "utils/freeglut.dll";
# Parse glversion.txt file
open GLDATA, $glv_file or die "get_extensions: could not open $glv_file: $!\n";
my $gldata = {};
my @gldata = <GLDATA>;
close(GLDATA);
foreach my $line (@gldata)
{
$line =~ s|[\r\n]+||;
my($key,$val) = split('=',$line);
$gldata->{$key} = $val;
}
die "get_extensions: no extensions found in $glv_file\n" if !keys %$gldata;
print "This looks like OpenGL Version: $gldata->{VERSION}\n";
# Parse glext_procs.h file
open GLEXT, "glext_procs.h" or die "get_extensions: could not open glext_procs.h: $!\n";
my @lines = <GLEXT>;
close(GLEXT);
my $no_ext = {};
foreach my $line (@lines)
{
next if ($line !~ m|\#ifndef NO_([^\s]+)|);
my $ext = $1;
next if ($ext =~ m|^GL_VERSION_|);
$no_ext->{$ext}++;
}
# Create gl_exclude.h
die "Unable to write to $exc_file\n" if (!open(GLEXC,">$exc_file"));
print GLEXC "// OpenGL Extension Exclusions - may be modified before building.\n";
print GLEXC "//\n";
print GLEXC "// Generated for ".$gldata->{VENDOR}.", ".$gldata->{RENDERER}."\n";
print GLEXC "// OpenGL v".$gldata->{VERSION}.", using ";
# Fix GLUT flags based on results
if ($gldata->{FREEGLUT})
{
print 'Found FreeGLUT v'.$gldata->{FREEGLUT}."\n";
print GLEXC 'FreeGLUT v'.$gldata->{FREEGLUT}."\n";
if (!$found->{FREEGLUT} && !$found->{FREEGLUT32})
{
$found->{FREEGLUT} = $lib;
}
}
elsif ($gldata->{GLUT})
{
print "Found GLUT - Version: $gldata->{GLUT}\n";
}
else
{
print "Found no GLUT\n"
}
my $GL_VERSION;
my($GL_VERSION_MAJOR, $GL_VERSION_MINOR);
if ($gldata->{VERSION} =~ m|^(\d\.\d+)|)
{
$GL_VERSION = $1;
($GL_VERSION_MAJOR,$GL_VERSION_MINOR) = split('.', $GL_VERSION);
}
# Make an empty exclusion file if a Windows distribution build
if ($no_excl)
{
print "OpenGL Extension exclusions disabled\n";
print GLEXC "//\n";
print GLEXC "// Exclusions omitted for distribution build.\n";
}
else
{
print GLEXC "\n";
if ($GL_VERSION)
{
print GLEXC "#define NO_GL_VERSION_4_5\n" if ($GL_VERSION < 4.5);
print GLEXC "#define NO_GL_VERSION_4_4\n" if ($GL_VERSION < 4.4);
print GLEXC "#define NO_GL_VERSION_4_3\n" if ($GL_VERSION < 4.3);
print GLEXC "#define NO_GL_VERSION_4_2\n" if ($GL_VERSION < 4.2);
print GLEXC "#define NO_GL_VERSION_4_1\n" if ($GL_VERSION < 4.1);
print GLEXC "#define NO_GL_VERSION_4_0\n" if ($GL_VERSION < 4.0);
print GLEXC "#define NO_GL_VERSION_3_3\n" if ($GL_VERSION < 3.3);
print GLEXC "#define NO_GL_VERSION_3_2\n" if ($GL_VERSION < 3.2);
print GLEXC "#define NO_GL_VERSION_3_1\n" if ($GL_VERSION < 3.1);
print GLEXC "#define NO_GL_VERSION_3_0\n" if ($GL_VERSION < 3.0);
print GLEXC "#define NO_GL_VERSION_2_1\n" if ($GL_VERSION < 2.1);
print GLEXC "#define NO_GL_VERSION_2_0\n" if ($GL_VERSION < 2.0);
print GLEXC "#define NO_GL_VERSION_1_5\n" if ($GL_VERSION < 1.5);
print GLEXC "#define NO_GL_VERSION_1_4\n" if ($GL_VERSION < 1.4);
print GLEXC "#define NO_GL_VERSION_1_3\n" if ($GL_VERSION < 1.3);
print GLEXC "#define NO_GL_VERSION_1_2\n" if ($GL_VERSION < 1.2);
print GLEXC "#define NO_GL_VERSION_1_1\n" if ($GL_VERSION < 1.1);
}
foreach my $ext (split(' ',$gldata->{EXTENSIONS}))
{
next if (!$no_ext->{$ext});
$no_ext->{$ext} = 0;
}
foreach my $ext (sort keys(%$no_ext))
{
next if (!$no_ext->{$ext});
print GLEXC "#define NO_$ext\n";
}
}
close(GLEXC);
# return Distributable Defs
print "Have Version Data\n" if ($verbose);
my $defines = '-DHAVE_VER';
$defines .= " -DGL_VERSION_USED=$GL_VERSION" if ($GL_VERSION);
return $defines;
}
# Takes as input a INCS string ready for MakeMaker and cleans out
# non-existant directories produce a minimal configuration value
sub clean_incs {
my $inincs = $_[0];