New upstream release
[sven/exfat-utils.git] / SConstruct
index e4b2b104d6af33ab237e98e689342345e63981dc..e40a3409aaf1a3c3da2dbcf16a22ab0881d73c62 100644 (file)
@@ -2,7 +2,7 @@
 #      SConstruct (10.09.09)
 #      SConscript for all components.
 #
-#      Copyright (C) 2009, 2010  Andrew Nayenko
+#      Copyright (C) 2010-2013  Andrew Nayenko
 #
 #      This program is free software: you can redistribute it and/or modify
 #      it under the terms of the GNU General Public License as published by
@@ -23,23 +23,79 @@ import platform
 import SCons
 
 env = Environment(**ARGUMENTS)
+for var in ['PATH', 'SYSROOT']:
+       if var in os.environ:
+               env['ENV'][var] = os.environ[var]
+
 destdir = env.get('DESTDIR', '/sbin');
-targets = []
-
-if not env['CCFLAGS']:
-       if env['CC'] == 'gcc':
-               env['CCFLAGS'] = '-Wall -O2 -ggdb'
-env.Append(CPPDEFINES = {'FUSE_USE_VERSION': 26})
-env.Append(CPPDEFINES = {'_FILE_OFFSET_BITS' : 64})
-# __DARWIN_64_BIT_INO_T=0 define is needed because since Snow Leopard inode
-# numbers are 64-bit by default, but libfuse operates 32-bit ones. This define
-# forces 32-bit inode declaration in system headers, but it's also possible to
-# link against libfuse_ino64 instead.
-if platform.system() == 'Darwin':
-       env.Append(CPPDEFINES = {'__DARWIN_64_BIT_INO_T' : 0})
-       env.Append(CPPDEFINES = {'__DARWIN_UNIX03' : 1})
-env.Append(CPPPATH = ['libexfat'])
-env.Append(LINKFLAGS = '')
+libs = ['exfat']
+libfuse = 'fuse'
+
+if not env.GetOption('clean'):
+       conf = Configure(env)
+
+       if 'AR' in os.environ:
+               conf.env.Replace(AR = os.environ['AR'])
+       if 'RANLIB' in os.environ:
+               conf.env.Replace(RANLIB = os.environ['RANLIB'])
+       if 'CC' in os.environ:
+               conf.env.Replace(CC = os.environ['CC'])
+       if 'CCFLAGS' in os.environ:
+               conf.env.Replace(CCFLAGS = os.environ['CCFLAGS'])
+       # Set default CCFLAGS for known compilers
+       if not conf.env['CCFLAGS']:
+               if conf.env['CC'] == 'gcc':
+                       conf.env.Replace(CCFLAGS = '-Wall -O2 -ggdb -std=c99')
+               elif conf.env['CC'] == 'clang':
+                       conf.env.Replace(CCFLAGS = '-Wall -O2 -g -std=c99')
+       if 'CPPFLAGS' in os.environ:
+               conf.env.Replace(CPPFLAGS = os.environ['CPPFLAGS'])
+       conf.env.Append(CPPDEFINES = {'_FILE_OFFSET_BITS' : 64})
+       conf.env.Append(CPPPATH = ['libexfat'])
+       if 'LDFLAGS' in os.environ:
+               conf.env.Append(LINKFLAGS = os.environ['LDFLAGS'])
+       conf.env.Append(LIBPATH = ['libexfat'])
+
+       # GNU/Linux requires _BSD_SOURCE define for vsyslog(), _XOPEN_SOURCE >= 500
+       # for pread(), pwrite(), snprintf(), strdup(), etc. Everything needed is
+       # enabled by _GNU_SOURCE.
+       if platform.system() == 'Linux':
+               conf.env.Append(CPPDEFINES = '_GNU_SOURCE');
+
+       # Use 64-bit inode numbers (introduced in Mac OS X 10.5 Leopard). Require
+       # OSXFUSE (http://osxfuse.github.com).
+       if platform.system() == 'Darwin':
+               conf.env.Append(CPPDEFINES = '_DARWIN_USE_64_BIT_INODE')
+               conf.env.Append(CPPDEFINES = {'__DARWIN_UNIX03' : 1})
+               conf.env.Append(CPPPATH = ['/usr/local/include/osxfuse'])
+               conf.env.Append(CFLAGS    = '-mmacosx-version-min=10.5')
+               conf.env.Append(LINKFLAGS = '-mmacosx-version-min=10.5')
+               libfuse = 'osxfuse_i64'
+
+       # FreeBSD does not support block devices, only raw devices. Ublio is
+       # required for unaligned I/O and caching.
+       if platform.system() == 'FreeBSD':
+               conf.env.Append(CPPDEFINES = 'USE_UBLIO')
+               libs.append('ublio')
+               conf.env.Append(CPPPATH = ['/usr/local/include'])
+               conf.env.Append(LIBPATH = ['/usr/local/lib'])
+
+       if not conf.CheckCC():
+               print '''
+       A working C compiler is needed very much.
+'''
+               Exit(1)
+
+       if not conf.CheckTypeSize('off_t', '#include <sys/types.h>', 'C', 8):
+               print '''
+       The size of off_t type must be 64 bits. File systems larger than
+       2 GB will be corrupted with 32-bit off_t.
+'''
+               Exit(1)
+
+       env = conf.Finish()
+
+
 
 def make_symlink(dir, target, link_name):
        workdir = os.getcwd()
@@ -55,27 +111,22 @@ symlink = SCons.Action.ActionFactory(make_symlink,
                lambda dir, target, link_name:
                                'make_symlink("%s", "%s", "%s")' % (dir, target, link_name))
 
-def program(pattern, output, alias = None, lib = None):
+def program(pattern, output, alias, libs):
        sources = Glob(pattern)
        if not sources:
                return
-       libs = ['exfat']
-       if lib:
-               libs.append(lib)
-       target = env.Program(output, sources, LIBS = libs, LIBPATH = 'libexfat')
+       target = env.Program(output, sources, LIBS = libs)
        if alias:
-               Alias('install', Install(destdir, target),
-                               symlink(destdir, os.path.basename(output), alias))
+               Clean(Alias('install', Install(destdir, target),
+                               symlink(destdir, os.path.basename(output), alias)),
+                               destdir + '/' + alias)
        else:
                Alias('install', Install(destdir, target))
-       targets.append(target)
 
 env.Library('libexfat/exfat', Glob('libexfat/*.c'))
 
-program('fuse/*.c', 'fuse/mount.exfat-fuse', 'mount.exfat', ['fuse'])
-program('dump/*.c', 'dump/dumpexfat')
-program('fsck/*.c', 'fsck/exfatfsck', 'fsck.exfat')
-program('mkfs/*.c', 'mkfs/mkexfatfs', 'mkfs.exfat')
-program('label/*.c', 'label/exfatlabel')
-
-Default(targets)
+program('fuse/*.c', 'fuse/mount.exfat-fuse', 'mount.exfat', [libs + [libfuse]])
+program('dump/*.c', 'dump/dumpexfat', None, libs)
+program('fsck/*.c', 'fsck/exfatfsck', 'fsck.exfat', libs)
+program('mkfs/*.c', 'mkfs/mkexfatfs', 'mkfs.exfat', libs)
+program('label/*.c', 'label/exfatlabel', None, libs)