Make actually buildable in Ubuntu.

src/libslic3r/Emboss.cpp

@@ -2,6 +2,7 @@
 ///|/
 ///|/ PrusaSlicer is released under the terms of the AGPLv3 or higher
 ///|/
+#include <numeric>
 #include "Emboss.hpp"
 #include <stdio.h>
 #include <cstdlib>
@@ -562,7 +563,7 @@ Duplicates collect_duplicit_indices(const ExPolygons &expoly)
 
     // initialize original index locations
     std::vector<uint32_t> idx(pts.size());
-    iota(idx.begin(), idx.end(), 0);
+    std::iota(idx.begin(), idx.end(), 0);
     std::sort(idx.begin(), idx.end(), 
         [&pts](uint32_t i1, uint32_t i2) { return pts[i1] < pts[i2]; });
 
@@ -2218,4 +2219,4 @@ void remove_spikes(ExPolygons &expolygons, const SpikeDesc &spike_desc)
     remove_bad(expolygons);
 }
 
-#endif // REMOVE_SPIKES
+#endif // REMOVE_SPIKES

src/libslic3r/NSVGUtils.cpp

@@ -7,6 +7,7 @@
 #include <charconv> // to_chars
 
 #include <boost/nowide/iostream.hpp>
+#include <boost/nowide/fstream.hpp>
 #include "ClipperUtils.hpp"
 #include "Emboss.hpp" // heal for shape
 
@@ -521,4 +522,4 @@ HealedExPolygons stroke_to_expolygons(const LinesPath &lines_path, const NSVGsha
     return Emboss::heal_polygons(result, is_non_zero, param.max_heal_iteration);
 }
 
-} // namespace
+} // namespace

src/slic3r/GUI/IconManager.cpp

@@ -1,6 +1,10 @@
 #include "IconManager.hpp"
 #include <cmath>
+#include <numeric>
 #include <boost/log/trivial.hpp>
+#include <boost/nowide/cstdio.hpp>
+#include <boost/filesystem/operations.hpp>
+#include <boost/algorithm/string.hpp>
 #include "nanosvg/nanosvg.h"
 #include "nanosvg/nanosvgrast.h"
 #include "libslic3r/Utils.hpp" // ScopeGuard   

src/slic3r/GUI/Jobs/EmbossJob.cpp

@@ -6,6 +6,7 @@
 
 #include <stdexcept>
 #include <type_traits>
+#include <boost/log/trivial.hpp>
 
 #include <libslic3r/Model.hpp>
 #include <libslic3r/Format/OBJ.hpp> // load_obj for default mesh