diff options
| -rw-r--r-- | Misc/NEWS.d/next/Build/2017-11-18-11-19-28.bpo-32059.a0Hxgp.rst | 2 | ||||
| -rw-r--r-- | setup.py | 44 |
2 files changed, 39 insertions, 7 deletions
diff --git a/Misc/NEWS.d/next/Build/2017-11-18-11-19-28.bpo-32059.a0Hxgp.rst b/Misc/NEWS.d/next/Build/2017-11-18-11-19-28.bpo-32059.a0Hxgp.rst new file mode 100644 index 0000000..a071bd8 --- /dev/null +++ b/Misc/NEWS.d/next/Build/2017-11-18-11-19-28.bpo-32059.a0Hxgp.rst @@ -0,0 +1,2 @@ +``detect_modules()`` in ``setup.py`` now also searches the sysroot paths +when cross-compiling. @@ -60,6 +60,31 @@ def add_dir_to_list(dirlist, dir): return dirlist.insert(0, dir) +def sysroot_paths(make_vars, subdirs): + """Get the paths of sysroot sub-directories. + + * make_vars: a sequence of names of variables of the Makefile where + sysroot may be set. + * subdirs: a sequence of names of subdirectories used as the location for + headers or libraries. + """ + + dirs = [] + for var_name in make_vars: + var = sysconfig.get_config_var(var_name) + if var is not None: + m = re.search(r'--sysroot=([^"]\S*|"[^"]+")', var) + if m is not None: + sysroot = m.group(1).strip('"') + for subdir in subdirs: + if os.path.isabs(subdir): + subdir = subdir[1:] + path = os.path.join(sysroot, subdir) + if os.path.isdir(path): + dirs.append(path) + break + return dirs + def macosx_sdk_root(): """ Return the directory of the current OSX SDK, @@ -559,18 +584,23 @@ class PyBuildExt(build_ext): add_dir_to_list(self.compiler.include_dirs, sysconfig.get_config_var("INCLUDEDIR")) + system_lib_dirs = ['/lib64', '/usr/lib64', '/lib', '/usr/lib'] + system_include_dirs = ['/usr/include'] # 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. if not cross_compiling: - 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 + system_lib_dirs + inc_dirs = self.compiler.include_dirs + system_include_dirs else: - lib_dirs = self.compiler.library_dirs[:] - inc_dirs = self.compiler.include_dirs[:] + # Add the sysroot paths. 'sysroot' is a compiler option used to + # set the logical path of the standard system headers and + # libraries. + lib_dirs = (self.compiler.library_dirs + + sysroot_paths(('LDFLAGS', 'CC'), system_lib_dirs)) + inc_dirs = (self.compiler.include_dirs + + sysroot_paths(('CPPFLAGS', 'CFLAGS', 'CC'), + system_include_dirs)) exts = [] missing = [] |