- Fix

- upgrade Pods

Example/Pods/Target Support Files/pop/pop-Private.xcconfig

@@ -0,0 +1,8 @@
+#include "pop.xcconfig"
+CLANG_CXX_LANGUAGE_STANDARD = ${POP_CLANG_CXX_LANGUAGE_STANDARD}
+CLANG_CXX_LIBRARY = ${POP_CLANG_CXX_LIBRARY}
+GCC_PREPROCESSOR_DEFINITIONS = $(inherited) COCOAPODS=1
+HEADER_SEARCH_PATHS = "${PODS_ROOT}/Headers/Private" "${PODS_ROOT}/Headers/Private/pop" "${PODS_ROOT}/Headers/Public"
+OTHER_LDFLAGS = ${POP_OTHER_LDFLAGS}
+PODS_ROOT = ${SRCROOT}
+SKIP_INSTALL = YES