26 lines
834 B
Markdown
26 lines
834 B
Markdown
Using ccache
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------------
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[ccache](http://ccache.samba.org/manual.html) is available in many
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systems, and can dramatically improve compilation times. In particular
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if we are constantly switching between different branches.
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On Ubuntu, we can install ccache by executing
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sudo apt-get install ccache
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Then, we can create a simple script that invokes ccache with our
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favorite C++ 11 compiler. For example, we can create the script
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`~/bin/ccache-g++` with the following content:
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#!/bin/sh
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ccache g++ "$@"
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Then, we instruct cmake to use `ccache-g++` as our C++ compiler
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cmake -D CMAKE_BUILD_TYPE=Debug -D CMAKE_CXX_COMPILER=~/bin/ccache-g++ ../../src
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We usually use Ninja instead of make. Thus, our cmake command
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line is:
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cmake -D CMAKE_BUILD_TYPE=Debug -D CMAKE_CXX_COMPILER=~/bin/ccache-g++ -G Ninja ../../src
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