Talk:Building using CMake

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These are some handy switches

-D CMAKE_VERBOSE_MAKEFILE=TRUE : get the make-style actual commands instead of just the progress indications.
-D CMAKE_BUILD_TYPE="RELWITHDEBINFO" : Use some optimization

An example of command-lines for a local build:

OSG/cmake.txt:

cmake -D CMAKE_BUILD_TYPE:STRING="Release" -D CMAKE_CXX_FLAGS_RELEASE:STRING="-O3 -g -pipe  -march=native -mtune=native  -mfpmath=sse -Wall"\
-D CMAKE_C_FLAGS_RELEASE:STRING="-O3 -g -pipe  -march=native -mtune=native -mfpmath=sse -Wall" -D CMAKE_INSTALL_PREFIX:PATH="$HOME/FlightGear/fg.git" $1

SimGear/cmake.txt:

 cmake -D CMAKE_BUILD_TYPE:STRING="Release" -D CMAKE_CXX_FLAGS_RELEASE:STRING="-O3 -g -pipe  -march=native -mtune=native  -mfpmath=sse -Wall"\
-D CMAKE_C_FLAGS_RELEASE:STRING="-O3 -g -pipe  -march=native -mtune=native  -mfpmath=sse -Wall" -D CMAKE_INSTALL_PREFIX:PATH="$HOME/FlightGear/fg.git" -D JPEG_FACTORY:BOOL="ON" $1

FlightGear/cmake.txt:

cmake -D CMAKE_BUILD_TYPE:STRING="Release" -D CMAKE_CXX_FLAGS_RELEASE:STRING="-O3 -g -pipe  -march=native -mtune=native -mfpmath=sse -Wall"\
-D CMAKE_C_FLAGS_RELEASE:STRING="-O3 -g -pipe -march=native -mtune=native -mfpmath=sse -Wall" -D CMAKE_INSTALL_PREFIX:PATH="$HOME/FlightGear/fg.git" -D FG_DATA_DIR="/some/path/" $1

Changed the order of cmake's source path and option as suggested by man cmake. This is to prevent makeing new users of cmake confused. It also has the advantage that options like "-D CMAKE_SOME_OPTION=something" (instead of "-DCMAKE_...") do work. If you don't like that change, just undo it, thanks. Flughund 11:54, 21 August 2012 (EDT)