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Building using CMake: Difference between revisions
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Usage of <syntaxhighlight> tags for all shell commands.
m (→XCode) |
(Usage of <syntaxhighlight> tags for all shell commands.) |
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* '''NOTE''': On Debian AMD64 (or not 32-bit) systems (maybe including Ubuntu) there is currently a packaging error which leads to false detection of OpenAL. Until it got repaired, you have 2 options left: | * '''NOTE''': On Debian AMD64 (or not 32-bit) systems (maybe including Ubuntu) there is currently a packaging error which leads to false detection of OpenAL. Until it got repaired, you have 2 options left: | ||
1. Goto /usr/share/cmake-2.8/Modules/ (it is the right patch on my Debian system) and expand the search path with lib/x86_64-linux-gnu/: | 1. Goto /usr/share/cmake-2.8/Modules/ (it is the right patch on my Debian system) and expand the search path with lib/x86_64-linux-gnu/: | ||
< | <syntaxhighlight lang="sh">sudo su # to become root | ||
cd /usr/share/cmake-2.8/Modules/ # again, use the proper path of your system | cd /usr/share/cmake-2.8/Modules/ # again, use the proper path of your system | ||
$EDITOR FindOpenAL.cmake | $EDITOR FindOpenAL.cmake | ||
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# Save it | # Save it | ||
# Quit your editor | # Quit your editor | ||
exit # to leave root</ | exit # to leave root</syntaxhighlight> | ||
2. (As I did) Set a symbolic link so cmake can find it: | 2. (As I did) Set a symbolic link so cmake can find it: | ||
< | <syntaxhighlight lang="sh">sudo su # again, become root | ||
cd /usr/lib/ | cd /usr/lib/ | ||
ln -s x86_64-linux-gnu/* . # ignore that error for pkconfig for now | ln -s x86_64-linux-gnu/* . # ignore that error for pkconfig for now | ||
cd pkconfig/ | cd pkconfig/ | ||
ln -s ../x86_64-linux-gnu/pkgconfig/* .</ | ln -s ../x86_64-linux-gnu/pkgconfig/* .</syntaxhighlight> | ||
* Both steps have advantages and disadvantages, e.g. when it comes to updates, so you might need to repeat your desired path and fix your symbolic links by removing them first (!) and then re-create them. A big "thanks" to James for giving me the hints. :) | * Both steps have advantages and disadvantages, e.g. when it comes to updates, so you might need to repeat your desired path and fix your symbolic links by removing them first (!) and then re-create them. A big "thanks" to James for giving me the hints. :) | ||
* If you have OSG/PLIB on different directories than the usual, use environmental variables OSG_DIR/PLIBDIR, e.g. addd to ~/.bashrc: | * If you have OSG/PLIB on different directories than the usual, use environmental variables OSG_DIR/PLIBDIR, e.g. addd to ~/.bashrc: | ||
< | <syntaxhighlight lang="sh"># OSG/PLIB special directory | ||
export OSG_DIR=/opt/my-osg-path | export OSG_DIR=/opt/my-osg-path | ||
export PLIBDIR=/opt/my-plib-path</ | export PLIBDIR=/opt/my-plib-path</syntaxhighlight> | ||
Note: In order to set the CFLAGS/CXXFLAGS variables for make/gcc, simply configure cmake and define | Note: In order to set the CFLAGS/CXXFLAGS variables for make/gcc, simply configure cmake and define | ||
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For example, to enable gprof: | For example, to enable gprof: | ||
< | <syntaxhighlight lang="sh"> | ||
cmake ../flightgear -DCMAKE_BUILD_TYPE=DEBUG -DCMAKE_C_FLAGS=-pg -DCMAKE_CXX_FLAGS=-pg | cmake ../flightgear -DCMAKE_BUILD_TYPE=DEBUG -DCMAKE_C_FLAGS=-pg -DCMAKE_CXX_FLAGS=-pg | ||
</ | </syntaxhighlight> | ||
===Mac=== | ===Mac=== | ||
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/home/curt/projects/fgbuild. Change into the new directory, and run | /home/curt/projects/fgbuild. Change into the new directory, and run | ||
<syntaxhighlight lang="sh"> | |||
cmake ../flightgear | |||
</syntaxhighlight> | |||
To generate standard Unix Makefiles in fgbuild. | To generate standard Unix Makefiles in fgbuild. | ||
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Probably you want to specify an install prefix: | Probably you want to specify an install prefix: | ||
<syntaxhighlight lang="sh"> | |||
cmake -DCMAKE_INSTALL_PREFIX=/usr ../flightgear | |||
</syntaxhighlight> | |||
Note the install prefix is automatically searched for required libraries | Note the install prefix is automatically searched for required libraries | ||
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you can specify one or more via CMAKE_PREFIX_PATH: | you can specify one or more via CMAKE_PREFIX_PATH: | ||
<syntaxhighlight lang="sh"> | |||
cmake -DCMAKE_PREFIX_PATH="/opt/local;/opt/fgfs" ../flightgear | |||
</syntaxhighlight> | |||
(note the use of semi-colons to specify multiple prefix paths) | (note the use of semi-colons to specify multiple prefix paths) | ||
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By default, we select a release build. To create a debug build, use | By default, we select a release build. To create a debug build, use | ||
<syntaxhighlight lang="sh"> | |||
cmake -DCMAKE_BUILD_TYPE=RelWithDebInfo ../flightgear | |||
</syntaxhighlight> | |||
(or MinSizeRel, or Debug) | (or MinSizeRel, or Debug) | ||
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To set an optional feature, do | To set an optional feature, do | ||
<syntaxhighlight lang="sh"> | |||
cmake -DFEATURE_NAME=ON ../flightgear | |||
</syntaxhighlight> | |||
(or 'OFF' to disable) | (or 'OFF' to disable) | ||
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run one of the GUI front ends, or the following command: | run one of the GUI front ends, or the following command: | ||
<syntaxhighlight lang="sh"> | |||
cmake -L ../flighgear | |||
</syntaxhighlight> | |||
Add 'A' to see all the options (including advanced options), or 'H' to see | Add 'A' to see all the options (including advanced options), or 'H' to see | ||
the help for each option (similar to running configure --help under autoconf): | the help for each option (similar to running configure --help under autoconf): | ||
<syntaxhighlight lang="sh"> | |||
cmake -LH ../flightgear | |||
</syntaxhighlight> | |||
== Build Targets == | == Build Targets == | ||
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To be able to do so he's run cmake for both Simgear and FlightGear as follows: | To be able to do so he's run cmake for both Simgear and FlightGear as follows: | ||
< | <syntaxhighlight lang="sh"> | ||
cmake -DCMAKE_AR=/usr/bin/gcc-ar \ | cmake -DCMAKE_AR=/usr/bin/gcc-ar \ | ||
-DCMAKE_RANLIB=/usr/bin/gcc-ranlib \ | -DCMAKE_RANLIB=/usr/bin/gcc-ranlib \ | ||
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-DCMAKE_BUILD_TYPE=Release \ | -DCMAKE_BUILD_TYPE=Release \ | ||
-DCMAKE_CXX_FLAGS:STRING="-Os march=native -mtune=native -msse3 -mfpmath=sse -flto" | -DCMAKE_CXX_FLAGS:STRING="-Os march=native -mtune=native -msse3 -mfpmath=sse -flto" | ||
</ | </syntaxhighlight> | ||
After applying one patch to SimGear he got it compiling. | After applying one patch to SimGear he got it compiling. | ||