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2019-12-04Removed duplicated includesAndrea Gelmini1-1/+0
Change-Id: Ica64e5b201689930ff400070fb773832d4a97d78 Reviewed-on: Tested-by: Jenkins Reviewed-by: Julien Nabet <>
2019-12-01Introduce o3tl::optional as an alias for std::optionalStephan Bergmann1-2/+2
...with a boost::optional fallback for Xcode < 10 (as std::optional is only available starting with Xcode 10 according to <>, and our baseline for iOS and macOS is still Xcode 9.3 according to And mechanically rewrite all code to use o3tl::optional instead of boost::optional. One immediate benefit is that disabling -Wmaybe-uninitialized for GCC as per fed7c3deb3f4ec81f78967c2d7f3c4554398cb9d "Slience bogus -Werror=maybe-uninitialized" should no longer be necessary (and whose check happened to no longer trigger for GCC 10 trunk, even though that compiler would still emit bogus -Wmaybe-uninitialized for uses of boost::optional under --enable-optimized, which made me ponder whether this switch from boost::optional to std::optional would be a useful thing to do; I keep that check for now, though, and will only remove it in a follow up commit). Another longer-term benefit is that the code is now already in good shape for an eventual switch to std::optional (a switch we would have done anyway once we no longer need to support Xcode < 10). Only desktop/qa/desktop_lib/test_desktop_lib.cxx heavily uses boost::property_tree::ptree::get_child_optional returning boost::optional, so let it keep using boost::optional for now. After a number of preceding commits have paved the way for this change, this commit is completely mechanical, done with > git ls-files -z | grep -vz -e '^bin/find-unneeded-includes$' -e '^$' -e '^desktop/qa/desktop_lib/test_desktop_lib.cxx$' -e '^dictionaries$' -e '^external/' -e '^helpcontent2$' -e '^include/IwyuFilter_include.yaml$' -e '^sc/IwyuFilter_sc.yaml$' -e '^solenv/gdb/boost/$' -e '^solenv/vs/LibreOffice.natvis$' -e '^translations$' -e '\.svg$' | xargs -0 sed -i -E -e 's|\<boost(/optional)?/optional\.hpp\>|o3tl/optional.hxx|g' -e 's/\<boost(\s*)::(\s*)(make_)?optional\>/o3tl\1::\2\3optional/g' -e 's/\<boost(\s*)::(\s*)none\>/o3tl\1::\2nullopt/g' (before committing include/o3tl/optional.hxx, and relying on some GNU features). It excludes some files where mention of boost::optional et al should apparently not be changed (and the sub-repo directory stubs). It turned out that all uses of boost::none across the code base were in combination with boost::optional, so had all to be rewritten as o3tl::nullopt. Change-Id: Ibfd9f4b3d5a8aee6e6eed310b988c4e5ffd8b11b Reviewed-on: Tested-by: Jenkins Reviewed-by: Stephan Bergmann <>
2019-10-04add gbuild function for a common PCH and use it in sc/ and sax/Luboš Luňák2-1/+11
And make it simple to disable the whole feature by setting gb_DISABLE_PCH_REUSE=1, just in case. Also work around a possible BOOST_ALL_NO_LIB mismatch when using the common PCH. Change-Id: I96fd507edf1ada6242ac225026250e5a588d0193 Reviewed-on: Tested-by: Jenkins Reviewed-by: Luboš Luňák <>
2019-10-04support reusing PCH if linktarget has additional reasonable definesLuboš Luňák1-0/+29
Where reasonable means they are from a list of defines known not to affect the system headers, and so they are safe to differ from how the PCH was built. A bit hackish, but works in practice. Change-Id: Ia00d2e4c56212aca05ba9d47abbb0d253998219f Reviewed-on: Tested-by: Jenkins Reviewed-by: Luboš Luňák <>
2019-10-04add "system" PCH that contains often used system headers such as STLLuboš Luňák7-0/+165
The idea is that this PCH will be used as a fallback for linktargets that do not explicitly set their own PCH. Change-Id: If05d3f04893a386e5d991f913e094f49249c8f44 Reviewed-on: Tested-by: Jenkins Reviewed-by: Luboš Luňák <>