bash script: assist with compiling and making deb files: ubuntu/debian/mint/etc - Overclock.net

transhour · 08-27-09

i do not know how use full any one will find this bash script, but i use it alot when i go to compile programs. it is a very limited script, it will only do the ./configure, if there are any other process you are to do before that, then you will need to do it yourself, it will configure, and will pass optimization onto the configure, it will build and then create a deb package using checkinstall, then it will clean the directory.

you will need to make sure that you have all dependency's install for compiling and installing, checkinstall will ask you for a dependency list, i typically only use these files for my own use, so i can remove them using the package manager, you could always change

checkinstall -d to make install if you want.

here is the usage

bash: ./compile.sh /home/desktop/user/location-of-source

there is currently only one argument you can pass to the script, and that is the director location of the source you wish to compile.

here is the script, i have commented the areas you can change.

Code:

#!/bin/bash
DEST_DIR=$1 #this is the first argument capture
cd $DEST_DIR #changing to thedirectory
Cf="" # optimization flags go here, you can find a list by googling gcc optimization cflags
CxF=$Cf #cxxflags optimization flags, i typically use the cflags for this, but you can alter if you wish
NumOfProcs=1 #number of threads you wish make to start when compiling.
make clean
./configure CFLAGS="$Cf" CXXFLAGS="$CxF"
make -j$NumOfProcs
checkinstall -D
make clean

if you have any suggestions or comments on this bash script, let me know, i use it mainly for light builds, nothing major or fancy.

**gonX** · 08-28-09

You probably want -O3 and -pipe as both C and C++ flags. Then -mtune=core2 is ideal, but if you know you'll only be running it on core2 systems, then you can use -march instead. mtune only makes generic optimizations for the set architecture, but will run on any x86-compatible computer.

transhour · 08-29-09

these are my settings:

"-march=core2 mtune=core2 -02 -msse4.1 -fomit-frame-pointer -pipe -mmmx -msse2 -msse3"

i've always used -02, never -03, read that can lead to instability.

nerdy_swagger · 08-29-09

I use a similar script except I have some extra stuff in there to do things for specific purposes

**gonX** · 08-29-09

-O2 is overall more stable, but -O3 tends to be faster (though not by much). The mmx, sse2, sse3 and sse4.1 pointers are unnecessary if you have -march, and so is -mtune. The -O setting also automatically omits frame pointers, so that one becomes unnecessary too.

So with your example you'd ideally need to use:

-march=core2 -O2 -pipe

You probably want to read this:
http://gcc.gnu.org/onlinedocs/gcc/Optimize-Options.html

You probably want to read the Gentoo Linux Compile Optimization guide too:
http://www.gentoo.org/doc/en/gcc-optimization.xml

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bash script: assist with compiling and making deb files: ubuntu/debian/mint/etc

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