Bug 769607 - dependentlibs.py depends on dumpbin r=glandium

xpcom/stub/dependentlibs.py

@@ -17,7 +17,11 @@ TOOLCHAIN_PREFIX = ''
 
 def dependentlibs_dumpbin(lib):
     '''Returns the list of dependencies declared in the given DLL'''
+    try:
         proc = subprocess.Popen(['dumpbin', '-imports', lib], stdout = subprocess.PIPE)
+    except OSError:
+        # dumpbin is missing, probably mingw compilation. Try using objdump.
+        return dependentlibs_mingw_objdump(lib)
     deps = []
     for line in proc.stdout:
         # Each line containing an imported library name starts with 4 spaces
@@ -27,6 +31,16 @@ def dependentlibs_dumpbin(lib):
     proc.wait()
     return deps
 
+def dependentlibs_mingw_objdump(lib):
+    proc = subprocess.Popen(['objdump', '-x', lib], stdout = subprocess.PIPE)
+    deps = []
+    for line in proc.stdout:
+        match = re.match('\tDLL Name: (\S+)', line)
+        if match:
+            deps.append(match.group(1))
+    proc.wait()
+    return deps
+
 def dependentlibs_readelf(lib):
     '''Returns the list of dependencies declared in the given ELF .so'''
     proc = subprocess.Popen([TOOLCHAIN_PREFIX + 'readelf', '-d', lib], stdout = subprocess.PIPE)