Explicit . source directory for cmake

Jamfile

@@ -85,7 +85,7 @@ make usrsctp.lib : : @make_libusrsctp_msvc ;
 
 actions make_libusrsctp
 {
-    (cd $(CWD)/deps/usrsctp && cmake -Bbuild -DCMAKE_C_FLAGS="-fPIC" && cd build && make -j2 usrsctp-static)
+    (cd $(CWD)/deps/usrsctp && cmake -Bbuild -DCMAKE_C_FLAGS="-fPIC" . && cd build && make -j2 usrsctp-static)
     cp $(CWD)/deps/usrsctp/build/usrsctplib/libusrsctp.a $(<)
 }
 actions make_libusrsctp_msvc
@@ -127,7 +127,7 @@ rule make_libjuice ( targets * : sources * : properties * )
 }
 actions make_libjuice
 {
-    (cd $(CWD)/deps/libjuice && cmake -Bbuild -DCMAKE_C_FLAGS="-fPIC" $(CMAKEOPTS) && cd build && make -j2 juice-static)
+    (cd $(CWD)/deps/libjuice && cmake -Bbuild -DCMAKE_C_FLAGS="-fPIC" $(CMAKEOPTS) . && cd build && make -j2 juice-static)
     cp $(CWD)/deps/libjuice/build/libjuice-static.a $(<)
 }
 rule make_libjuice_msvc ( targets * : sources * : properties * )