# A debhelper build system class for handling CMake based projects. # It prefers out of source tree building. # # Copyright: © 2008-2009 Modestas Vainius # License: GPL-2+ package Debian::Debhelper::Buildsystem::cmake; use strict; use base 'Debian::Debhelper::Buildsystem::makefile'; sub DESCRIPTION { "CMake (CMakeLists.txt)" } sub check_auto_buildable { my $this=shift; my ($step)=@_; if (-e $this->get_sourcepath("CMakeLists.txt")) { my $ret = ($step eq "configure" && 1) || $this->SUPER::check_auto_buildable(@_); # Existence of CMakeCache.txt indicates cmake has already # been used by a prior build step, so should be used # instead of the parent makefile class. $ret++ if ($ret && -e $this->get_buildpath("CMakeCache.txt")); return $ret; } return 0; } sub new { my $class=shift; my $this=$class->SUPER::new(@_); $this->prefer_out_of_source_building(@_); return $this; } sub configure { my $this=shift; my @flags; # Standard set of cmake flags push @flags, "-DCMAKE_INSTALL_PREFIX=/usr"; push @flags, "-DCMAKE_VERBOSE_MAKEFILE=ON"; $this->mkdir_builddir(); eval { $this->doit_in_builddir("cmake", $this->get_source_rel2builddir(), @flags, @_); }; if ($@) { if (-e $this->get_buildpath("CMakeCache.txt")) { $this->doit_in_builddir("tail -v -n +0 CMakeCache.txt"); } die $@; } } sub test { my $this=shift; # Unlike make, CTest does not have "unlimited parallel" setting (-j implies # -j1). So in order to simulate unlimited parallel, allow to fork a huge # number of threads instead. my $parallel = ($this->get_parallel() > 0) ? $this->get_parallel() : 999; $ENV{CTEST_OUTPUT_ON_FAILURE} = 1; return $this->SUPER::test(@_, "ARGS+=-j$parallel"); } 1