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In my project, I use the first sdk, it needs me to set : 

    "c++ Language Dialect" to "C+=98[-std=c++98]",
    "c++ Standard Library" to "libstdc++(GUN C++ standard library)";
however ,the project also needs the second sdk,it needs to set 
and the second sdk,it needs me to set the 
    "c++ Language Dialect" to "C++11[-std=c++11]",
    "c++ Standard Library" to "libc++(LLVM C++ standard library with C++ support)";

(I just need to use the first SDK at some particular situation )

user3355200
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  • http://stackoverflow.com/questions/12637699/c03-library-with-c11-source-code?answertab=active#tab-top it may be helpful. – Peixu Zhu Apr 20 '15 at 09:43

1 Answers1

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You can set the build flags per (sub-)project.

To do so: Simply select the first SDK project in the navigation bar and set the flags appropriately in the column called as your project with the blue project icon. (It should be the third column counted from the left, the first is named Resolved, the second is named as your target, which is has the same name as your project, but has a brown icon.)

Do the same with the second project (and different flags of course …)

Amin Negm-Awad
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  • i add the first sdk as a static project import into my project,and set is using c+=98 dialect,however,when i build it ,it shows many errors ,such as "...std::string::_Rep::_S_empty_rep_storage", referenced from:s_122::init(char const*, bool) in libsubShare.a(UD5059.o)..." – user3355200 Apr 22 '15 at 01:57
  • it seems a c++ error,my first sdk using "... c+= dialect ... " can compiler alone;however when it imported it compilers error..... – user3355200 Apr 22 '15 at 02:03
  • "can compile alone" does mean "using command line" or "using Xcode with a single project"? – Amin Negm-Awad Apr 22 '15 at 04:35