Use of external C++ headers in Objective-C

Question

In my iOS project I need to use an external library written in C++. The C++ header files are all in one directory.

I\'ve added these C++ headers to my Xcode project

Answer 1

my two cents for OSX / Mysql. (by the way I ask why that bogus use of <> in mysql... anyway..)

As per Xcode 11 warning, "Disabling it is strongly recommended.",

I prefer to patch another setting, leaving "Always Search User Paths" to "No".

I set:

HEADER_SEARCH_PATHS = "/usr/local/mysql/include".

LINKER:

I) If You got link error, add "libmysqlclient.a" usually in "/usr/local/mysql/lib", simply dragging from Finder)

II: You can get a worst error...

"/usr/local/lib/libmysqlclient.21.dylib: code signature in (/usr/local/lib/libmysqlclient.21.dylib) not valid for use in process using Library Validation: mapping process and mapped file (non-platform) have different Team IDs"

As that lib is not signed. Simply in Entitlemens:

(in XML): ..

    com.apple.security.cs.disable-library-validation
    

...