fix header parsing bug and unistd.h header; fixes unistd_confstr

emscripten.py

@@ -169,23 +169,25 @@ def main(args):
   defines = {}
   include_root = path_from_root('system', 'include')
   headers = args.headers[0].split(',') if len(args.headers) > 0 else []
+  seen_headers = set()
   while len(headers) > 0:
     header = headers.pop(0)
     if not os.path.isabs(header):
       header = os.path.join(include_root, header)
+    seen_headers.add(header)
     for line in open(header, 'r'):
       line = line.replace('\t', ' ')
-      m = re.match('^ *#define +(?P<name>[-\w_.]+) +\(?(?P<value>[-\w_.|]+)\)?.*', line)
+      m = re.match('^ *# *define +(?P<name>[-\w_.]+) +\(?(?P<value>[-\w_.|]+)\)?.*', line)
       if m:
         defines[m.group('name')] = m.group('value')
-      m = re.match('^ *#include *["<](?P<name>[\w_.-/]+)[">].*', line)
+      m = re.match('^ *# *include *["<](?P<name>[\w_.-/]+)[">].*', line)
       if m:
         # Find this file
         found = False
         for w in [w for w in os.walk(include_root)]:
           for f in w[2]:
             curr = os.path.join(w[0], f)
-            if curr.endswith(m.group('name')):
+            if curr.endswith(m.group('name')) and curr not in seen_headers:
               headers.append(curr)
               found = True
               break

system/include/libc/sys/unistd.h

@@ -490,11 +490,11 @@ int	_EXFUN(unlinkat, (int, const char *, int));
 #define _CS_POSIX_V7_THREADS_CFLAGS           18
 #define _CS_POSIX_V7_THREADS_LDFLAGS          19
 #define _CS_V7_ENV                            20
-#define _CS_V6_ENV                           _CS_V6_ENV
 
-/* XXX Emscripten: two additional ones */
-#define _CS_GNU_LIBC_VERSION 42
-#define _CS_GNU_LIBPTHREAD_VERSION 42
+/* XXX Emscripten: remove self-ref, and add two additional ones */
+/* #define _CS_V6_ENV                           _CS_V6_ENV */
+#define _CS_GNU_LIBC_VERSION                  42
+#define _CS_GNU_LIBPTHREAD_VERSION            43
 
 #endif
 

tests/runner.py

@@ -189,6 +189,7 @@ class RunnerCore(unittest.TestCase):
     except OSError:
       os.chdir(self.get_dir()) # ensure the current working directory is valid
     compiler_output = timeout_run(Popen([EMSCRIPTEN, filename + ('.o.ll' if append_ext else ''), '-o', filename + '.o.js'] + settings + extra_args, stdout=PIPE, stderr=STDOUT), TIMEOUT, 'Compiling')
+    #print compiler_output
 
     # Detect compilation crashes and errors
     if compiler_output is not None and 'Traceback' in compiler_output and 'in test_' in compiler_output: print compiler_output; assert 0