On Sun, 2 Aug 2015 17:27:39 +0200 Helmut Grohne <hel...@subdivi.de> wrote: > Package: debhelper > Version: 9.20150628 > Severity: wishlist > Tags: patch > User: helm...@debian.org > Usertags: rebootstrap > > I tried to cross build src:libical. It fails, because cmake selects "cc" > as its compiler. I saw very similar failures for src:attica, > src:automoc, src:charls, src:clucene-core, src:cutecom, src:ebook-tools, > src:game-music-emu, src:garmindev, src:gflags, src:grantlee, > src:graphite2, src:libbluedevil, src:libgooglepinyin, src:libmsn, > src:librabbitmq, src:libsoxr, src:lucene++, src:mppenc, > src:mysql-connector-c++, src:nmapsi4, src:pkg-kde-tools, src:prison, > src:q4wine, src:qimageblitz, src:qjson, src:qzion, src:read-edid, > src:rtl-sdr, src:smokegen, src:taglib, src:taglib-extras, src:thinkfan, > src:tinyxml2, src:v42lucp, src:wbxml2, src:wildmidi, src:x265, src:yagf, > src:yaml-cpp, and src:yaml-cpp0.3. So instead of fixing all of these > packages (and more), I'd like to fix this in debhelper. > > I took src:libical as my example and developed a patch that makes it > cross build. The patch is attached and it basically adds lots of flags > to CMake. The flags one should set are explained at > http://www.cmake.org/Wiki/CMake_Cross_Compiling. The good thing is that > this patch actually makes src:libical build. > > So I worked from this patch and tried to implement the same approach > into debhelper itself. The result is the other attached patch. Like the > autoconf.pm counterpart, it is only active when the build architecture > and the host architecture differ, so I do note expect any regressions > for native compilation. Yet, cross compilation never worked with CMake, > so I think it is safe to change the behaviour of the build system. >
Ubuntu add a patch for cmake to detect host-gcc if no complier splificated by CC. We may should add patch for both debhelper and cmake. > What do you think about the approach? > > Helmut
