added support armv7s for iOS framework

for supporting with iOS 6 devices

ios/build_framework.py

@@ -27,10 +27,10 @@ However, OpenCV.framework directory is erased and recreated on each run.
 
 import glob, re, os, os.path, shutil, string, sys
 
-def build_opencv(srcroot, buildroot, target):
+def build_opencv(srcroot, buildroot, target, arch):
     "builds OpenCV for device or simulator"
 
-    builddir = os.path.join(buildroot, target)
+    builddir = os.path.join(buildroot, target + '-' + arch)
     if not os.path.isdir(builddir):
         os.makedirs(builddir)
     currdir = os.getcwd()
@@ -52,8 +52,8 @@ def build_opencv(srcroot, buildroot, target):
         if os.path.isfile(wlib):
             os.remove(wlib)
 
-    os.system("xcodebuild -parallelizeTargets -jobs 8 -sdk %s -configuration Release -target ALL_BUILD" % target.lower())
-    os.system("xcodebuild -sdk %s -configuration Release -target install install" % target.lower())
+    os.system("xcodebuild -parallelizeTargets ARCHS=%s -jobs 8 -sdk %s -configuration Release -target ALL_BUILD" % (arch, target.lower()))
+    os.system("xcodebuild ARCHS=%s -sdk %s -configuration Release -target install install" % (arch, target.lower()))
     os.chdir(currdir)
 
 def put_framework_together(srcroot, dstroot):
@@ -112,8 +112,10 @@ def put_framework_together(srcroot, dstroot):
 def build_framework(srcroot, dstroot):
     "main function to do all the work"
 
-    for target in ["iPhoneOS", "iPhoneSimulator"]:
-        build_opencv(srcroot, os.path.join(dstroot, "build"), target)
+    targets = ["iPhoneOS", "iPhoneOS", "iPhoneSimulator"]
+    archs = ["armv7", "armv7s", "i386"]
+    for i in range(len(targets)):
+        build_opencv(srcroot, os.path.join(dstroot, "build"), targets[i], archs[i])
 
     put_framework_together(srcroot, dstroot)
 
@@ -123,4 +125,4 @@ if __name__ == "__main__":
         print "Usage:\n\t./build_framework.py <outputdir>\n\n"
         sys.exit(0)
 
-    build_framework(os.path.abspath(os.path.join(os.path.dirname(sys.argv[0]), "..")), os.path.abspath(sys.argv[1]))
+    build_framework(os.path.abspath(os.path.join(os.path.dirname(sys.argv[0]), "..")), os.path.abspath(sys.argv[1]))