docs: add release notes for 20.1.5

[mesa.git] / scons / gallium.py

diff --git a/scons/gallium.py b/scons/gallium.py
index aa7201a97159c08914ca72c4792c89a4cc23e56a..ea212d15a95714356e3aa6c97faa9ce310f635cf 100755 (executable)
--- a/scons/gallium.py
+++ b/scons/gallium.py
@@ -132,7 +132,7 @@ def check_cc(env, cc, expr, cpp_opt = '-E'):
     sys.stdout.write('Checking for %s ... ' % cc)
 
     source = tempfile.NamedTemporaryFile(suffix='.c', delete=False)
-    source.write('#if !(%s)\n#error\n#endif\n' % expr)
+    source.write(('#if !(%s)\n#error\n#endif\n' % expr).encode())
     source.close()
 
     # sys.stderr.write('%r %s %s\n' % (env['CC'], cpp_opt, source.name));
@@ -237,6 +237,9 @@ def generate(env):
     hosthost_platform = host_platform.system().lower()
     if hosthost_platform.startswith('cygwin'):
         hosthost_platform = 'cygwin'
+    # Avoid spurious crosscompilation in MSYS2 environment.
+    if hosthost_platform.startswith('mingw'):
+        hosthost_platform = 'windows'
     host_machine = os.environ.get('PROCESSOR_ARCHITEW6432', os.environ.get('PROCESSOR_ARCHITECTURE', host_platform.machine()))
     host_machine = {
         'x86': 'x86',
@@ -279,7 +282,7 @@ def generate(env):
         if env['build'] == 'profile':
             env['debug'] = False
             env['profile'] = True
-        if env['build'] in ('release', 'opt'):
+        if env['build'] == 'release':
             env['debug'] = False
             env['profile'] = False
 
@@ -308,7 +311,20 @@ def generate(env):
     if env.GetOption('num_jobs') <= 1:
         env.SetOption('num_jobs', num_jobs())
 
-    env.Decider('MD5-timestamp')
+    # Speed up dependency checking.  See
+    # - https://github.com/SCons/scons/wiki/GoFastButton
+    # - https://bugs.freedesktop.org/show_bug.cgi?id=109443
+
+    # Scons version string has consistently been in this format:
+    # MajorVersion.MinorVersion.Patch[.alpha/beta.yyyymmdd]
+    # so this formula should cover all versions regardless of type
+    # stable, alpha or beta.
+    # For simplicity alpha and beta flags are removed.
+
+    scons_version = distutils.version.StrictVersion('.'.join(SCons.__version__.split('.')[:3]))
+    if scons_version < distutils.version.StrictVersion('3.0.2') or \
+       scons_version > distutils.version.StrictVersion('3.0.4'):
+        env.Decider('MD5-timestamp')
     env.SetOption('max_drift', 60)
 
     # C preprocessor options
@@ -317,7 +333,7 @@ def generate(env):
         '__STDC_CONSTANT_MACROS',
         '__STDC_FORMAT_MACROS',
         '__STDC_LIMIT_MACROS',
-        'HAVE_NO_AUTOCONF',
+        'HAVE_SCONS',
     ]
     if env['build'] in ('debug', 'checked'):
         cppdefines += ['DEBUG']
@@ -325,8 +341,6 @@ def generate(env):
         cppdefines += ['NDEBUG']
     if env['build'] == 'profile':
         cppdefines += ['PROFILE']
-    if env['build'] in ('opt', 'profile'):
-        cppdefines += ['VMX86_STATS']
     if env['platform'] in ('posix', 'linux', 'freebsd', 'darwin'):
         cppdefines += [
             '_POSIX_SOURCE',
@@ -341,6 +355,7 @@ def generate(env):
                 '_DARWIN_C_SOURCE',
                 'GLX_USE_APPLEGL',
                 'GLX_DIRECT_RENDERING',
+                'BUILDING_MESA',
             ]
         else:
             cppdefines += [
@@ -357,9 +372,26 @@ def generate(env):
         if check_functions(env, ['strtod_l', 'strtof_l']):
             cppdefines += ['HAVE_STRTOD_L']
 
+        if check_functions(env, ['random_r']):
+            cppdefines += ['HAVE_RANDOM_R']
+
         if check_functions(env, ['timespec_get']):
             cppdefines += ['HAVE_TIMESPEC_GET']
 
+        if check_header(env, 'sys/shm.h'):
+            cppdefines += ['HAVE_SYS_SHM_H']
+
+        if check_functions(env, ['strtok_r']):
+            cppdefines += ['HAVE_STRTOK_R']
+
+        #FIXME: we should really be checking for the major()/minor()
+        # functions/macros in these headers, but check_functions()'s
+        # SConf.CheckFunc() doesn't seem to support macros.
+        if check_header(env, 'sys/mkdev.h'):
+            cppdefines += ['MAJOR_IN_MKDEV']
+        if check_header(env, 'sys/sysmacros.h'):
+            cppdefines += ['MAJOR_IN_SYSMACROS']
+
     if platform == 'windows':
         cppdefines += [
             'WIN32',
@@ -385,10 +417,8 @@ def generate(env):
             ]
         if env['build'] in ('debug', 'checked'):
             cppdefines += ['_DEBUG']
-    if platform == 'windows':
-        cppdefines += ['PIPE_SUBSYSTEM_WINDOWS_USER']
     if env['embedded']:
-        cppdefines += ['PIPE_SUBSYSTEM_EMBEDDED']
+        cppdefines += ['EMBEDDED_DEVICE']
     env.Append(CPPDEFINES = cppdefines)
 
     # C compiler options
@@ -457,9 +487,15 @@ def generate(env):
             '-fmessage-length=0', # be nice to Eclipse
         ]
         cflags += [
-            '-Wmissing-prototypes',
-            '-std=gnu99',
+            '-Werror=implicit-function-declaration',
+            '-Werror=missing-prototypes',
+            '-Werror=return-type',
+            '-Werror=incompatible-pointer-types',
         ]
+        if platform == 'darwin' and host_platform.mac_ver()[0] >= '10.15':
+            cflags += ['-std=gnu11']
+        else:
+            cflags += ['-std=gnu99']
     if icc:
         cflags += [
             '-std=gnu99',
@@ -477,7 +513,7 @@ def generate(env):
             ccflags += [
                 '/O2', # optimize for speed
             ]
-        if env['build'] in ('release', 'opt'):
+        if env['build'] == 'release':
             if not env['clang']:
                 ccflags += [
                     '/GL', # enable whole program optimization
@@ -588,7 +624,7 @@ def generate(env):
             shlinkflags += ['-Wl,--enable-stdcall-fixup']
             #shlinkflags += ['-Wl,--kill-at']
     if msvc:
-        if env['build'] in ('release', 'opt') and not env['clang']:
+        if env['build'] == 'release' and not env['clang']:
             # enable Link-time Code Generation
             linkflags += ['/LTCG']
             env.Append(ARFLAGS = ['/LTCG'])