CODEWITHSUNDEEP
gcc
Kentzo
Kentzo

Reputation: 3961

How to tell GCC to map include directory?

I need to compiler source code that contains includes like this:

#include <tr1/unordered_map>

However my compiler (based on GCC 4.6) does not have the tr1 directory. I need to somehow tell the compiler to map <tr1/unordered_map> to <unordered_map without modifying source code of file system?

Upvotes: 1

Views: 437

Answers (3)

n. m. could be an AI
n. m. could be an AI

Reputation: 119847

Gcc headers <unordered_map> and <tr1/unordered_map> are different. One requires C++11 support turned on, the other does not. Substituting one for the other may or may not work.

Probably the easiest solution to your problem is to use the tr1 implementation from Boost.

Upvotes: 1

Douglas Leeder
Douglas Leeder

Reputation: 53310

A bit hacky: Go to the include directory containing unordered_map and:

ln -s . tr1

Upvotes: 0

jparthj
jparthj

Reputation: 1636

when you build your code, provide include directory as an argument.

-I. - For current directory as an include directory

-I tr1 - tr1 as an include directory.

-I /yourpath/ - To put any directory as include directory

Upvotes: 1

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