[patch] Respect a sysroot env variable in setup.py

python-2.6-cross-setup-sysroot.patch (text/plain), 10.51 KB, created by Sven 'sleipnir' Rebhan on 2009-05-09 11:28:12 UTC

This lengthy patch adds the 'sysroot' variable as a prefix
to all instances of include and libdirs in the python setup
module. The 'sysroot' variable itself can be set using the
SYSROOT environment variable used in the Gentoo cross-compile
framework, making it possible to install python and its
extensions into a root environment.

--- setup.py	2008-09-28 19:17:01.000000000 +0200
+++ setup.py.new	   2008-09-28 19:19:25.000000000 +0200
@@ -333,9 +333,15 @@
 
     def detect_modules(self):
         global disable_ssl
+
+	# We must respect the user specified sysroot!
+	sysroot=os.getenv('PYTHON_SYSROOT')
+	if sysroot is None:
+		sysroot=''
+	
         # Ensure that /usr/local is always used
-        add_dir_to_list(self.compiler.library_dirs, '/usr/local/lib')
-        add_dir_to_list(self.compiler.include_dirs, '/usr/local/include')
+        add_dir_to_list(self.compiler.library_dirs, sysroot+'/usr/local/lib')
+        add_dir_to_list(self.compiler.include_dirs, sysroot+'/usr/local/include')
 
         # Add paths specified in the environment variables LDFLAGS and
         # CPPFLAGS for header and library files.
@@ -371,12 +377,20 @@
                     for directory in reversed(options.dirs):
                         add_dir_to_list(dir_list, directory)
 
-        if os.path.normpath(sys.prefix) != '/usr':
+        if os.path.normpath(sys.prefix) != '/usr' and sysroot == '':
             add_dir_to_list(self.compiler.library_dirs,
                             sysconfig.get_config_var("LIBDIR"))
             add_dir_to_list(self.compiler.include_dirs,
                             sysconfig.get_config_var("INCLUDEDIR"))
 
+	# We should always look into sysroot/usr/include and consider
+	# also the lib dirs there for searching for files
+	add_dir_to_list(self.compiler.include_dirs, sysroot+'/usr/include')
+	add_dir_to_list(self.compiler.library_dirs, sysroot+'/lib')
+	add_dir_to_list(self.compiler.library_dirs, sysroot+'/lib64')
+	add_dir_to_list(self.compiler.library_dirs, sysroot+'/usr/lib')
+	add_dir_to_list(self.compiler.library_dirs, sysroot+'/usr/lib64')
+
         try:
             have_unicode = unicode
         except NameError:
@@ -385,11 +399,8 @@
         # lib_dirs and inc_dirs are used to search for files;
         # if a file is found in one of those directories, it can
         # be assumed that no additional -I,-L directives are needed.
-        lib_dirs = self.compiler.library_dirs + [
-            '/lib64', '/usr/lib64',
-            '/lib', '/usr/lib',
-            ]
-        inc_dirs = self.compiler.include_dirs + ['/usr/include']
+        lib_dirs = self.compiler.library_dirs
+        inc_dirs = self.compiler.include_dirs
         exts = []
         missing = []
 
@@ -608,11 +619,11 @@
             elif self.compiler.find_library_file(lib_dirs, 'curses'):
                 readline_libs.append('curses')
             elif self.compiler.find_library_file(lib_dirs +
-                                               ['/usr/@@GENTOO_LIBDIR@@/termcap'],
+                                               [sysroot+'/usr/@@GENTOO_LIBDIR@@/termcap'],
                                                'termcap'):
                 readline_libs.append('termcap')
             exts.append( Extension('readline', ['readline.c'],
-                                   library_dirs=['/usr/@@GENTOO_LIBDIR@@/termcap'],
+                                   library_dirs=[sysroot+'/usr/@@GENTOO_LIBDIR@@/termcap'],
                                    extra_link_args=readline_extra_link_args,
                                    libraries=readline_libs) )
         else:
@@ -637,20 +648,20 @@
                                depends = ['socketmodule.h']) )
         # Detect SSL support for the socket module (via _ssl)
         search_for_ssl_incs_in = [
-                              '/usr/local/ssl/include',
-                              '/usr/contrib/ssl/include/'
+                              sysroot+'/usr/local/ssl/include',
+                              sysroot+'/usr/contrib/ssl/include/'
                              ]
         ssl_incs = find_file('openssl/ssl.h', inc_dirs,
                              search_for_ssl_incs_in
                              )
         if ssl_incs is not None and not disable_ssl:
             krb5_h = find_file('krb5.h', inc_dirs,
-                               ['/usr/kerberos/include'])
+                               [sysroot+'/usr/kerberos/include'])
             if krb5_h:
                 ssl_incs += krb5_h
         ssl_libs = find_library_file(self.compiler, 'ssl',lib_dirs,
-                                     ['/usr/local/ssl/lib',
-                                      '/usr/contrib/ssl/lib/'
+                                     [sysroot+'/usr/local/ssl/lib',
+                                      sysroot+'/usr/contrib/ssl/lib/'
                                      ] )
 
         if (ssl_incs is not None and
@@ -753,6 +764,7 @@
                     return False
             return True
 
+
         def gen_db_minor_ver_nums(major):
             if major == 4:
                 for x in range(max_db_ver[1]+1):
@@ -768,21 +780,21 @@
         # construct a list of paths to look for the header file in on
         # top of the normal inc_dirs.
         db_inc_paths = [
-            '/usr/include/db4',
+            sysroot+'/usr/include/db4',
         ]
         # 4.x minor number specific paths
         for x in gen_db_minor_ver_nums(4):
-            db_inc_paths.append('/usr/include/db4%d' % x)
-            db_inc_paths.append('/usr/include/db4.%d' % x)
-            db_inc_paths.append('/usr/local/BerkeleyDB.4.%d/include' % x)
-            db_inc_paths.append('/usr/local/include/db4%d' % x)
-            db_inc_paths.append('/pkg/db-4.%d/include' % x)
-            db_inc_paths.append('/opt/db-4.%d/include' % x)
+            db_inc_paths.append(sysroot+'/usr/include/db4%d' % x)
+            db_inc_paths.append(sysroot+'/usr/include/db4.%d' % x)
+            db_inc_paths.append(sysroot+'/usr/local/BerkeleyDB.4.%d/include' % x)
+            db_inc_paths.append(sysroot+'/usr/local/include/db4%d' % x)
+            db_inc_paths.append(sysroot+'/pkg/db-4.%d/include' % x)
+            db_inc_paths.append(sysroot+'/opt/db-4.%d/include' % x)
             # MacPorts default (http://www.macports.org/)
             db_inc_paths.append('/opt/local/include/db4%d' % x)
         # 3.x minor number specific paths
         for x in gen_db_minor_ver_nums(3):
-            db_inc_paths.append('/usr/include/db3%d' % x)
+            db_inc_paths.append('sysroot+/usr/include/db3%d' % x)
 
         # Add some common subdirectories for Sleepycat DB to the list,
         # based on the standard include directories. This way DB3/4 gets
@@ -904,12 +916,12 @@
         # We hunt for #define SQLITE_VERSION "n.n.n"
         # We need to find >= sqlite version 3.0.8
         sqlite_incdir = sqlite_libdir = None
-        sqlite_inc_paths = [ '/usr/include',
-                             '/usr/include/sqlite',
-                             '/usr/include/sqlite3',
-                             '/usr/local/include',
-                             '/usr/local/include/sqlite',
-                             '/usr/local/include/sqlite3',
+        sqlite_inc_paths = [ sysroot+'/usr/include',
+                             sysroot+'/usr/include/sqlite',
+                             sysroot+'/usr/include/sqlite3',
+                             sysroot+'/usr/local/include',
+                             sysroot+'/usr/local/include/sqlite',
+                             sysroot+'/usr/local/include/sqlite3',
                            ]
         MIN_SQLITE_VERSION_NUMBER = (3, 0, 8)
         MIN_SQLITE_VERSION = ".".join([str(x)
@@ -1004,7 +1016,7 @@
         # we do not build this one.  Otherwise this build will pick up
         # the more recent berkeleydb's db.h file first in the include path
         # when attempting to compile and it will fail.
-        f = "/usr/include/db.h"
+        f = sysroot+"/usr/include/db.h"
         if os.path.exists(f) and not db_incs:
             data = open(f).read()
             m = re.search(r"#s*define\s+HASHVERSION\s+2\s*", data)
@@ -1207,7 +1219,7 @@
         # More information on Expat can be found at www.libexpat.org.
         #
         # Use system expat
-        expatinc = '/usr/include'
+        expatinc = sysroot+'/usr/include'
         define_macros = []
 
         exts.append(Extension('pyexpat',
@@ -1493,7 +1505,7 @@
         # For 8.4a2, the X11 headers are not included. Rather than include a
         # complicated search, this is a hard-coded path. It could bail out
         # if X11 libs are not found...
-        include_dirs.append('/usr/X11R6/include')
+        include_dirs.append(sysroot+'/usr/X11R6/include')
         frameworks = ['-framework', 'Tcl', '-framework', 'Tk']
 
         # All existing framework builds of Tcl/Tk don't support 64-bit
@@ -1528,6 +1540,11 @@
     def detect_tkinter(self, inc_dirs, lib_dirs):
         # The _tkinter module.
 
+	# We must respect the user specified sysroot!
+	sysroot=os.getenv('SYSROOT')
+	if sysroot is None:
+		sysroot=''
+	
         # Rather than complicate the code below, detecting and building
         # AquaTk is a separate method. Only one Tkinter will be built on
         # Darwin - either AquaTk, if it is found, or X11 based Tk.
@@ -1582,17 +1599,17 @@
         if platform == 'sunos5':
             include_dirs.append('/usr/openwin/include')
             added_lib_dirs.append('/usr/openwin/lib')
-        elif os.path.exists('/usr/X11R6/include'):
-            include_dirs.append('/usr/X11R6/include')
-            added_lib_dirs.append('/usr/X11R6/lib64')
-            added_lib_dirs.append('/usr/X11R6/lib')
-        elif os.path.exists('/usr/X11R5/include'):
-            include_dirs.append('/usr/X11R5/include')
-            added_lib_dirs.append('/usr/X11R5/lib')
+        elif os.path.exists(sysroot+'/usr/X11R6/include'):
+            include_dirs.append(sysroot+'/usr/X11R6/include')
+            added_lib_dirs.append(sysroot+'/usr/X11R6/lib64')
+            added_lib_dirs.append(sysroot+'/usr/X11R6/lib')
+        elif os.path.exists(sysroot+'/usr/X11R5/include'):
+            include_dirs.append(sysroot+'/usr/X11R5/include')
+            added_lib_dirs.append(sysroot+'/usr/X11R5/lib')
         else:
             # Assume default location for X11
-            include_dirs.append('/usr/X11/include')
-            added_lib_dirs.append('/usr/X11/lib')
+            include_dirs.append(sysroot+'/usr/X11/include')
+            added_lib_dirs.append(sysroot+'/usr/X11/lib')
 
         # If Cygwin, then verify that X is installed before proceeding
         if platform == 'cygwin':