Difference between revisions of "Ccache"

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(New page: {| style="text-align: left; background-color: AliceBlue;" |-valign="top" !Download Source: | http://samba.org/ftp/ccache/ccache-{{Ccache-Version}}.tar.gz |} ---- {{Package-Introduction|c...)
 
(→‎Configuring)
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== Configuring ==
 
== Configuring ==
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=== Using ccache ===
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There are 2 ways to configure ccache. Either to prefix the compiler with ccache or to create alternate symlinks.
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==== Method 1 ====
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To prefix the compiler with ccache you would need to set the following enviornment variables where appropriate:
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CC="ccache gcc"
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CXX="ccache g++"
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Or on multilib
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CC="ccache gcc ${BUILD32}"
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CXX="ccache g++ ${BUILD32}"
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==== Method 2 ====
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The second way would be to create some compatibility symlinks.
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install -dv -m755 /opt/ccache/bin &&
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ln -sfv ../../../usr/bin/gcc /opt/ccache/bin/gcc
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ln -sfv ../../../usr/bin/cc /opt/ccache/bin/cc
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ln -sfv ../../../usr/bin/g++ /opt/ccache/bin/g++
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Then put those links at the top of your path each time you login.
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cat > /etc/profile.d/50-ccache.sh << "EOF"
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# Begin /etc/profile.d/50-ccache.sh
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export PATH="/opt/ccache/bin:${PATH}"
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# End /etc/profile.d/50-ccache.sh
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EOF
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=== Using ccache with [[distcc]] ===
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In addition to the above section. The '''CCACHE_PREFIX''' variable is a prefix tagged onto the command that ccache would run to compile code.
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export CCACHE_PREFIX="distcc"
  
 
= Contents =
 
= Contents =

Revision as of 05:00, 4 August 2007

Download Source: http://samba.org/ftp/ccache/ccache-2.4.tar.gz

Introduction to Ccache

ccache is a compiler cache. It acts as a caching pre-processor to C/C++ compilers, using the -E compiler switch and a hash to detect when a compilation can be satisfied from cache. This often results in a 5 to 10 times speedup in common compilations.

Project Homepage: http://ccache.samba.org/

Non-Multilib

Compile the package: 

./configure --prefix=/usr &&
make

Install the package: 

make install

Multilib

This package does not install any libraries so only one installation is needed.

32Bit

Compile the package: 

CC="gcc ${BUILD32}" ./configure --prefix=/usr &&
make

Install the package: 

make install

N32

Compile the package: 

CC="gcc ${BUILDN32}" ./configure --prefix=/usr &&
make

Install the package: 

make install

64Bit

Compile the package: 

CC="gcc ${BUILD64}" ./configure --prefix=/usr &&
make

Install the package: 

make install

Configuring

Using ccache

There are 2 ways to configure ccache. Either to prefix the compiler with ccache or to create alternate symlinks.

Method 1

To prefix the compiler with ccache you would need to set the following enviornment variables where appropriate: 

CC="ccache gcc"
CXX="ccache g++"

Or on multilib 

CC="ccache gcc ${BUILD32}"
CXX="ccache g++ ${BUILD32}"

Method 2

The second way would be to create some compatibility symlinks. 

install -dv -m755 /opt/ccache/bin &&
ln -sfv ../../../usr/bin/gcc /opt/ccache/bin/gcc
ln -sfv ../../../usr/bin/cc /opt/ccache/bin/cc
ln -sfv ../../../usr/bin/g++ /opt/ccache/bin/g++

Then put those links at the top of your path each time you login. 

cat > /etc/profile.d/50-ccache.sh << "EOF"
# Begin /etc/profile.d/50-ccache.sh

export PATH="/opt/ccache/bin:${PATH}"

# End /etc/profile.d/50-ccache.sh
EOF

Using ccache with distcc

In addition to the above section. The CCACHE_PREFIX variable is a prefix tagged onto the command that ccache would run to compile code. 

export CCACHE_PREFIX="distcc"

Contents

Installed Programs: ccache
Installed Libraries: None
Installed Directories: None
Retrieved from "?title=Ccache&oldid=10787"