X-Git-Url: https://git.libre-soc.org/?p=mesa.git;a=blobdiff_plain;f=SConstruct;h=74a72c842e71ee5e189e4fcb4b99295d141cf12b;hp=8880d851e645541e95ca3990ddb55646993016d4;hb=3719b69dfc496cdacfe857e1a42984c435eb8a6c;hpb=792caebced5f8f6dbd7bf23aa8d94230aa786d00

diff --git a/SConstruct b/SConstruct
index 8880d851e64..74a72c842e7 100644
--- a/SConstruct
+++ b/SConstruct
@@ -1,7 +1,7 @@
 #######################################################################
 # Top-level SConstruct
 #
-# For example, invoke scons as 
+# For example, invoke scons as
 #
 #   scons build=debug llvm=yes machine=x86
 #
@@ -12,14 +12,15 @@
 #   build='debug'
 #   llvm=True
 #   machine='x86'
-# 
+#
 # Invoke
 #
 #   scons -h
 #
 # to get the full list of options. See scons manpage for more info.
-#  
+#
 
+from __future__ import print_function
 import os
 import os.path
 import sys
@@ -27,6 +28,13 @@ import SCons.Util
 
 import common
 
+#######################################################################
+# Minimal scons version
+
+EnsureSConsVersion(2, 4)
+EnsurePythonVersion(2, 7)
+
+
 #######################################################################
 # Configuration options
 
@@ -36,10 +44,13 @@ common.AddOptions(opts)
 env = Environment(
 	options = opts,
 	tools = ['gallium'],
-	toolpath = ['#scons'],	
+	toolpath = ['#scons'],
 	ENV = os.environ,
 )
 
+# XXX: This creates a many problems as it saves...
+#opts.Save('config.py', env)
+
 # Backwards compatability with old target configuration variable
 try:
     targets = ARGUMENTS['targets']
@@ -47,19 +58,45 @@ except KeyError:
     pass
 else:
     targets = targets.split(',')
-    print 'scons: warning: targets option is deprecated; pass the targets on their own such as'
-    print
-    print '  scons %s' % ' '.join(targets)
-    print 
+    print('scons: warning: targets option is deprecated; pass the targets on their own such as')
+    print()
+    print('  scons %s' % ' '.join(targets))
+    print()
     COMMAND_LINE_TARGETS.append(targets)
 
 
 Help(opts.GenerateHelpText(env))
 
 
+#######################################################################
+# Print a deprecation warning for using scons on non-windows
+
+if common.host_platform != 'windows' and env['platform'] != 'windows':
+    if env['force_scons']:
+        print("WARNING: Scons is deprecated for non-windows platforms (including cygwin) "
+              "please use meson instead.", file=sys.stderr)
+    else:
+        print("ERROR: Scons is deprecated for non-windows platforms (including cygwin) "
+              "please use meson instead. If you really need to use scons you "
+              "can add `force_scons=1` to the scons command line.", file=sys.stderr)
+        sys.exit(1)
+else:
+    print("WARNING: Scons support is in the process of being deprecated on "
+          "on windows platforms (including mingw). If you haven't already "
+          "please try using meson for windows builds. Be sure to report any "
+          "issues you run into", file=sys.stderr)
+
+
 #######################################################################
 # Environment setup
 
+with open("VERSION") as f:
+  mesa_version = f.read().strip()
+env.Append(CPPDEFINES = [
+    ('PACKAGE_VERSION', '\\"%s\\"' % mesa_version),
+    ('PACKAGE_BUGREPORT', '\\"https://gitlab.freedesktop.org/mesa/mesa/-/issues\\"'),
+])
+
 # Includes
 env.Prepend(CPPPATH = [
 	'#/include',
@@ -71,52 +108,56 @@ env.Append(CPPPATH = [
 	'#/src/gallium/winsys',
 ])
 
-if env['msvc']:
-    env.Append(CPPPATH = ['#include/c99'])
-
-# Embedded
-if env['platform'] == 'embedded':
-	env.Append(CPPDEFINES = [
-		'_POSIX_SOURCE',
-		('_POSIX_C_SOURCE', '199309L'), 
-		'_SVID_SOURCE',
-		'_BSD_SOURCE', 
-		'_GNU_SOURCE',
-		
-		'PTHREADS',
-	])
-	env.Append(LIBS = [
-		'm',
-		'pthread',
-		'dl',
-	])
-
-# Posix
-if env['platform'] in ('posix', 'linux', 'freebsd', 'darwin'):
-	env.Append(CPPDEFINES = [
-		'_POSIX_SOURCE',
-		('_POSIX_C_SOURCE', '199309L'), 
-		'_SVID_SOURCE',
-		'_BSD_SOURCE', 
-		'_GNU_SOURCE',
-		'PTHREADS',
-		'HAVE_POSIX_MEMALIGN',
-	])
-	if env['gcc']:
-		env.Append(CFLAGS = ['-fvisibility=hidden'])
-	if env['platform'] == 'darwin':
-		env.Append(CPPDEFINES = ['_DARWIN_C_SOURCE'])
-	env.Append(LIBS = [
-		'm',
-		'pthread',
-		'dl',
-	])
-
 # for debugging
 #print env.Dump()
 
-Export('env')
 
+# Add a check target for running tests
+check = env.Alias('check')
+env.AlwaysBuild(check)
+
+
+#######################################################################
+# Invoke host SConscripts
+#
+# For things that are meant to be run on the native host build machine, instead
+# of the target machine.
+#
+
+# Create host environent
+if env['crosscompile'] and not env['embedded']:
+    host_env = Environment(
+        options = opts,
+        # no tool used
+        tools = [],
+        toolpath = ['#scons'],
+        ENV = os.environ,
+    )
+
+    # Override options
+    host_env['platform'] = common.host_platform
+    host_env['machine'] = common.host_machine
+    host_env['toolchain'] = 'default'
+    host_env['llvm'] = False
+
+    host_env.Tool('gallium')
+
+    host_env['hostonly'] = True
+    assert host_env['crosscompile'] == False
+
+    target_env = env
+    env = host_env
+    Export('env')
+
+    SConscript(
+        'src/SConscript',
+        variant_dir = host_env['build_dir'],
+        duplicate = 0, # http://www.scons.org/doc/0.97/HTML/scons-user/x2261.html
+    )
+
+    env = target_env
+
+Export('env')
 
 #######################################################################
 # Invoke SConscripts
@@ -130,3 +171,17 @@ SConscript(
 	duplicate = 0 # http://www.scons.org/doc/0.97/HTML/scons-user/x2261.html
 )
 
+
+########################################################################
+# List all aliases
+
+try:
+    from SCons.Node.Alias import default_ans
+except ImportError:
+    pass
+else:
+    aliases = sorted(default_ans.keys())
+    env.Help('\n')
+    env.Help('Recognized targets:\n')
+    for alias in aliases:
+        env.Help('    %s\n' % alias)