diff --git a/src/data/action/symbol.cpp b/src/data/action/symbol.cpp
index 0c959df7..705d400f 100644
--- a/src/data/action/symbol.cpp
+++ b/src/data/action/symbol.cpp
@@ -328,7 +328,7 @@ void CombiningModeAction::perform(bool to_undo) {
 
 SymbolPartNameAction::SymbolPartNameAction(const SymbolPartP& part, const String& name, size_t old_cursor, size_t new_cursor)
 	: part(part), part_name(name)
-	, new_cursor(old_cursor), old_cursor(new_cursor) // will be swapped
+	, old_cursor(new_cursor), new_cursor(old_cursor) // will be swapped
 {}
 
 String SymbolPartNameAction::getName(bool to_undo) const {
diff --git a/src/data/action/value.hpp b/src/data/action/value.hpp
index ad623d3e..84e527b3 100644
--- a/src/data/action/value.hpp
+++ b/src/data/action/value.hpp
@@ -35,7 +35,7 @@ DECLARE_POINTER_TYPE(PackageChoiceValue);
 /// An Action the changes a Value
 class ValueAction : public Action {
   public:
-	inline ValueAction(const Card* card, const ValueP& value) : card(card), valueP(value) {}
+	inline ValueAction(const Card* card, const ValueP& value) : valueP(value), card(card) {}
 	
 	virtual String getName(bool to_undo) const;
 	
diff --git a/src/data/field.cpp b/src/data/field.cpp
index 673c1266..f1723d97 100644
--- a/src/data/field.cpp
+++ b/src/data/field.cpp
@@ -161,11 +161,11 @@ int Style::update(Context& ctx) {
 	if      (automatic_side & AUTO_LEFT)   left   = right - width;
 	else if (automatic_side & AUTO_WIDTH)  width  = right - left;
 	else if (automatic_side & AUTO_RIGHT)  right  = left + width;
-	else                                   {int lr = left + right; left = (lr - width) / 2; right = (lr + width) / 2; }
+	else                                   {int lr = int(left + right); left = (lr - width) / 2; right = (lr + width) / 2; }
 	if      (automatic_side & AUTO_TOP)    top    = bottom - height;
 	else if (automatic_side & AUTO_HEIGHT) height = bottom - top;
 	else if (automatic_side & AUTO_BOTTOM) bottom = top + height;
-	else                                   {int tb = top + bottom; top = (tb - height) / 2; bottom = (tb + height) / 2; }
+	else                                   {int tb = int(top + bottom); top = (tb - height) / 2; bottom = (tb + height) / 2; }
 	// adjust rotation point
 	if (angle != 0 && (automatic_side & (AUTO_LEFT | AUTO_TOP))) {
 		double s = sin(angle * M_PI / 180), c = cos(angle * M_PI / 180);
diff --git a/src/data/field/choice.cpp b/src/data/field/choice.cpp
index 8e65fc83..d90c1ad7 100644
--- a/src/data/field/choice.cpp
+++ b/src/data/field/choice.cpp
@@ -46,12 +46,13 @@ IMPLEMENT_REFLECTION(ChoiceField) {
 // ----------------------------------------------------------------------------- : ChoiceField::Choice
 
 ChoiceField::Choice::Choice()
-	: first_id(0)
-	, line_below(false), enabled(true), type(CHOICE_TYPE_CHECK)
+	: line_below(false), enabled(true), type(CHOICE_TYPE_CHECK)
+	, first_id(0)
 {}
 ChoiceField::Choice::Choice(const String& name)
-	: name(name), first_id(0)
+	: name(name)
 	, line_below(false), enabled(true), type(CHOICE_TYPE_CHECK)
+	, first_id(0)
 {}
 
 
diff --git a/src/data/font.cpp b/src/data/font.cpp
index 4fcf9c46..088d4867 100644
--- a/src/data/font.cpp
+++ b/src/data/font.cpp
@@ -88,7 +88,7 @@ wxFont Font::toWxFont(double scale) const {
 		}
 	} else if (name().empty()) {
 		font = *wxNORMAL_FONT;
-		font.SetPointSize(size > 1 ? size_i : scale * font.GetPointSize());
+		font.SetPointSize(size > 1 ? size_i : int(scale * font.GetPointSize()));
 		return font;
 	} else if (flags & FONT_ITALIC && !italic_name().empty()) {
 		font = wxFont(size_i, wxFONTFAMILY_DEFAULT, wxFONTSTYLE_NORMAL, weight_i, underline(), italic_name());
diff --git a/src/data/installer.cpp b/src/data/installer.cpp
index cd315603..b0deae15 100644
--- a/src/data/installer.cpp
+++ b/src/data/installer.cpp
@@ -38,7 +38,7 @@ IMPLEMENT_REFLECTION(Installer) {
 	REFLECT(packages);
 }
 
-/*
+#if 0
 // ----------------------------------------------------------------------------- : Installing
 
 void Installer::installFrom(const String& filename, bool message_on_success, bool local) {
@@ -135,12 +135,14 @@ void Installer::install(bool local, bool check_dependencies) {
 		}
 		os.Write(*is);
 	}
-	* /
+	*/
 }
 
 void Installer::install(const String& package) {
 	// TODO
-}*/
+}
+
+#endif
 
 // ----------------------------------------------------------------------------- : Creating
 
@@ -255,14 +257,14 @@ DownloadableInstaller::~DownloadableInstaller() {
 InstallablePackage::InstallablePackage(const PackageVersionP& installed, const PackageDescriptionP& description)
 	: installed(installed)
 	, description(description)
-	, action(PACKAGE_NOTHING)
 	, status(PACKAGE_INSTALLED)
+	, action(PACKAGE_NOTHING)
 {}
 InstallablePackage::InstallablePackage(const PackageDescriptionP& description , const DownloadableInstallerP& installer)
 	: description(description)
 	, installer(installer)
-	, action(PACKAGE_NOTHING)
 	, status(PACKAGE_INSTALLABLE)
+	, action(PACKAGE_NOTHING)
 {}
 
 void InstallablePackage::determineStatus() {
diff --git a/src/data/settings.cpp b/src/data/settings.cpp
index ce8a5cdc..98f02f62 100644
--- a/src/data/settings.cpp
+++ b/src/data/settings.cpp
@@ -157,8 +157,8 @@ Settings::Settings()
 	, installer_list_url   (_("http://magicseteditor.sourceforge.net/installers"))
 	, check_updates        (CHECK_IF_CONNECTED)
 	, check_updates_all    (true)
-	, install_type         (INSTALL_DEFAULT)
 	, website_url          (_("http://magicseteditor.sourceforge.net/"))
+	, install_type         (INSTALL_DEFAULT)
 {}
 
 void Settings::addRecentFile(const String& filename) {
diff --git a/src/gfx/blend_image.cpp b/src/gfx/blend_image.cpp
index 47d99b0b..d4d6b2d5 100644
--- a/src/gfx/blend_image.cpp
+++ b/src/gfx/blend_image.cpp
@@ -107,7 +107,7 @@ void set_alpha(Image& img, Byte* al, const wxSize& alpha_size) {
 }
 
 void set_alpha(Image& img, double alpha) {
-	Byte b_alpha = alpha * 255;
+	Byte b_alpha = Byte(alpha * 255);
 	if (!img.HasAlpha()) {
 		img.InitAlpha();
 		memset(img.GetAlpha(), b_alpha, img.GetWidth() * img.GetHeight());
diff --git a/src/gfx/generated_image.cpp b/src/gfx/generated_image.cpp
index 45c98768..4d1f1fce 100644
--- a/src/gfx/generated_image.cpp
+++ b/src/gfx/generated_image.cpp
@@ -31,7 +31,7 @@ Image conform_image(const Image& img, const GeneratedImage::Options& options) {
 	if ((iw == options.width && ih == options.height) || (options.width == 0 && options.height == 0)) {
 		// zoom?
 		if (options.zoom != 1.0) {
-			image = resample(image, iw * options.zoom, ih * options.zoom);
+			image = resample(image, int(iw * options.zoom), int(ih * options.zoom));
 		} else {
 			// already the right size
 		}
diff --git a/src/gfx/image_effects.cpp b/src/gfx/image_effects.cpp
index be7a2255..7e43c7c9 100644
--- a/src/gfx/image_effects.cpp
+++ b/src/gfx/image_effects.cpp
@@ -18,7 +18,7 @@ void saturate(Image& image, double amount) {
 	Byte* end = pix + image.GetWidth() * image.GetHeight() * 3;
 	if (amount > 0) {
 		amount = min(amount,0.99);
-		int factor = 256 * amount;
+		int factor = int(256 * amount);
 		int div    = 768 - 3 * factor;
 		while (pix != end) {
 			int r = pix[0], g = pix[1], b = pix[2];
@@ -35,7 +35,7 @@ void saturate(Image& image, double amount) {
 			pix += 3;
 		}
 	} else {
-		int factor1 = 256 * -amount;
+		int factor1 = int(256 * -amount);
 		int factor2 = 768 - 3*factor1;
 		while (pix != end) {
 			int r = pix[0], g = pix[1], b = pix[2];
diff --git a/src/gfx/resample_text.cpp b/src/gfx/resample_text.cpp
index bd623efe..57892fac 100644
--- a/src/gfx/resample_text.cpp
+++ b/src/gfx/resample_text.cpp
@@ -185,8 +185,8 @@ void draw_resampled_text(DC& dc, const RealPoint& pos, const RealRect& rect, dou
 	// get image
 	mdc.SelectObject(wxNullBitmap);
 	// step 2. sample down
-	if (!sideways(angle)) w *= stretch;
-	else                  h *= stretch;
+	if (!sideways(angle)) w = int(w * stretch); // GCC makes annoying conversion warnings if *= is used here.
+	else                  h = int(h * stretch);
 	Image img_small(w, h, false);
 	fill_image(img_small, dc.GetTextForeground());
 	downsample_to_alpha(buffer, img_small);
diff --git a/src/gui/control/card_viewer.cpp b/src/gui/control/card_viewer.cpp
index 7b52c8a4..f33e6f9b 100644
--- a/src/gui/control/card_viewer.cpp
+++ b/src/gui/control/card_viewer.cpp
@@ -29,7 +29,7 @@ wxSize CardViewer::DoGetBestSize() const {
 	if (set) {
 		if (!stylesheet) stylesheet = set->stylesheet;
 		StyleSheetSettings& ss = settings.stylesheetSettingsFor(*stylesheet);
-		wxSize size(stylesheet->card_width * ss.card_zoom(), stylesheet->card_height * ss.card_zoom());
+		wxSize size(int(stylesheet->card_width * ss.card_zoom()), int(stylesheet->card_height * ss.card_zoom()));
 		if (sideways(ss.card_angle())) swap(size.x, size.y);
 		return size + ws - cs;
 	}
diff --git a/src/gui/control/tree_list.cpp b/src/gui/control/tree_list.cpp
index de9c2314..1c24fb62 100644
--- a/src/gui/control/tree_list.cpp
+++ b/src/gui/control/tree_list.cpp
@@ -116,9 +116,9 @@ size_t TreeList::findParent(size_t start) const {
 
 TreeList::TreeList(Window* parent, int id, long style)
 	: wxPanel(parent, id, wxDefaultPosition, wxDefaultSize, style | wxWANTS_CHARS | wxVSCROLL)
+	, selection(NOTHING)
 	, total_lines(0)
 	, first_line(0)
-	, selection(NOTHING)
 {
 	// determine item size
 	wxClientDC dc(this);
diff --git a/src/gui/print_window.cpp b/src/gui/print_window.cpp
index a6848026..2f5a4a21 100644
--- a/src/gui/print_window.cpp
+++ b/src/gui/print_window.cpp
@@ -55,7 +55,7 @@ class TextBufferDC : public wxMemoryDC {
 		double user_scale_x, user_scale_y;
 		
 		TextDraw(wxFont font, Color color, double user_scale_x, double user_scale_y, int x, int y, String text, double angle = 0)
-			: font(font), color(color), user_scale_x(user_scale_x), user_scale_y(user_scale_y), x(x), y(y), text(text), angle(angle)
+			: font(font), color(color), x(x), y(y), text(text), angle(angle), user_scale_x(user_scale_x), user_scale_y(user_scale_y)
 		{}
 	};
   public:
@@ -127,8 +127,8 @@ PageLayout::PageLayout(const StyleSheet& stylesheet, const RealSize& page_size)
 	card_size.width  = stylesheet.card_width  * 25.4 / stylesheet.card_dpi;
 	card_size.height = stylesheet.card_height * 25.4 / stylesheet.card_dpi;
 	card_landscape = card_size.width > card_size.height;
-	cols = floor(page_size.width  / card_size.width);
-	rows = floor(page_size.height / card_size.height);
+	cols = int(floor(page_size.width  / card_size.width));
+	rows = int(floor(page_size.height / card_size.height));
 	// distribute whitespace evenly
 	margin_left = margin_right  = card_spacing.width  = (page_size.width  - (cols * card_size.width )) / (cols + 1);
 	margin_top  = margin_bottom = card_spacing.height = (page_size.height - (rows * card_size.height)) / (rows + 1);
@@ -228,7 +228,7 @@ void CardsPrintout::drawCard(DC& dc, const CardP& card, int card_nr) {
 	*/
 	
 	// create buffers
-	int w = stylesheet.card_width, h = stylesheet.card_height; // in pixels
+	int w = int(stylesheet.card_width), h = int(stylesheet.card_height); // in pixels
 	if (rotation == 90) swap(w,h);
 	// Draw using text buffer
 	//TextBufferDC bufferDC(w,h,true);
@@ -241,7 +241,7 @@ void CardsPrintout::drawCard(DC& dc, const CardP& card, int card_nr) {
 	// render buffer to device
 	double px_per_mm = 4 * stylesheet.card_dpi / 25.4;
 	dc.SetUserScale(scale_x / px_per_mm, scale_y / px_per_mm);
-	dc.SetDeviceOrigin(scale_x * pos.x, scale_y * pos.y);
+	dc.SetDeviceOrigin(int(scale_x * pos.x), int(scale_y * pos.y));
 	bufferDC.drawToDevice(dc, 0, 0); // adjust for scaling
 }
 
diff --git a/src/gui/symbol/symmetry_editor.cpp b/src/gui/symbol/symmetry_editor.cpp
index b311a956..584572b0 100644
--- a/src/gui/symbol/symmetry_editor.cpp
+++ b/src/gui/symbol/symmetry_editor.cpp
@@ -38,16 +38,16 @@ void SymbolSymmetryEditor::draw(DC& dc) {
 		if (symmetry->kind == SYMMETRY_REFLECTION) {
 			// draw line to handle
 			dc.SetPen(wxPen(color,1,wxDOT));
-			dc.DrawLine(center.x, center.y, handle.x, handle.y);
+			dc.DrawLine(int(center.x), int(center.y), int(handle.x), int(handle.y));
 			// draw handle
 			dc.SetPen(*wxBLACK_PEN);
 			dc.SetBrush(color);
-			dc.DrawCircle(handle.x, handle.y, hovered == SELECTION_HANDLE ? 7 : 4);
+			dc.DrawCircle(int(handle.x), int(handle.y), hovered == SELECTION_HANDLE ? 7 : 4);
 		}
 		// draw center
 		dc.SetPen(*wxBLACK_PEN);
 		dc.SetBrush(color);
-		dc.DrawCircle(center.x, center.y, hovered == SELECTION_CENTER ? 8 : 5);
+		dc.DrawCircle(int(center.x), int(center.y), hovered == SELECTION_CENTER ? 8 : 5);
 	}
 }
 
diff --git a/src/gui/value/package_choice.cpp b/src/gui/value/package_choice.cpp
index 095b5c77..8f39da89 100644
--- a/src/gui/value/package_choice.cpp
+++ b/src/gui/value/package_choice.cpp
@@ -117,4 +117,4 @@ void PackageChoiceValueEditor::change(const String& c) {
 void PackageChoiceValueEditor::initDropDown() {
 	if (drop_down) return;
 	drop_down = new_shared2<DropDownPackageChoiceList>(&editor(), this);
-}
\ No newline at end of file
+}
diff --git a/src/render/symbol/viewer.cpp b/src/render/symbol/viewer.cpp
index 49b31cfd..78e04134 100644
--- a/src/render/symbol/viewer.cpp
+++ b/src/render/symbol/viewer.cpp
@@ -21,9 +21,9 @@ Image render_symbol(const SymbolP& symbol, double border_radius, int width, int
 	double ar  = symbol->aspectRatio();
 	double par = (double)width/height;
 	if (par > ar && (ar > 1 || (allow_smaller && height < width))) {
-		width  = height * ar;
+		width  = int(height * ar);
 	} else if (par < ar && (ar < 1 || (allow_smaller && width < height))) {
-		height = width / ar;
+		height = int(width / ar);
 	}
 	if (width > height) {
 		viewer.setZoom(width);
@@ -354,12 +354,12 @@ void SymbolViewer::highlightPart(DC& dc, const SymbolSymmetry& sym, HighlightSty
 		double a = angle + (i + 0.5) * 2 * M_PI / copies;
 		Vector2D dir(cos(a), sin(a));
 		Vector2D dir2 = rotation.tr(sym.center + 2 * dir);
-		dc.DrawLine(center.x, center.y, dir2.x, dir2.y);
+		dc.DrawLine(int(center.x), int(center.y), int(dir2.x), int(dir2.y));
 	}
 	// draw center
 	dc.SetPen(*wxBLACK_PEN);
 	dc.SetBrush(color);
-	dc.DrawCircle(center.x, center.y, sym.kind == SYMMETRY_ROTATION ? 7 : 5);
+	dc.DrawCircle(int(center.x), int(center.y), sym.kind == SYMMETRY_ROTATION ? 7 : 5);
 }
 
 void SymbolViewer::highlightPart(DC& dc, const SymbolGroup& group, HighlightStyle style) {
diff --git a/src/render/text/viewer.cpp b/src/render/text/viewer.cpp
index 8d4c861a..6bf6ab8e 100644
--- a/src/render/text/viewer.cpp
+++ b/src/render/text/viewer.cpp
@@ -651,7 +651,7 @@ bool TextViewer::prepareLinesScale(RotatedDC& dc, const vector<CharInfo>& chars,
 			}
 		}
 		// how many paragraphs would fit?
-		int n = floor(0.5 + (dc.getInternalSize().height - style.padding_bottom) / style.paragraph_height);
+		int n = int(floor(0.5 + (dc.getInternalSize().height - style.padding_bottom) / style.paragraph_height));
 		lines.back().top = max_height * n - lines.back().line_height;
 	}
 	return lines.back().bottom() <= dc.getInternalSize().height - style.padding_bottom;
diff --git a/src/render/value/symbol.cpp b/src/render/value/symbol.cpp
index df4091ca..63446a02 100644
--- a/src/render/value/symbol.cpp
+++ b/src/render/value/symbol.cpp
@@ -35,8 +35,8 @@ void SymbolValueViewer::draw(RotatedDC& dc) {
 			ar = min(style().max_aspect_ratio, max(style().min_aspect_ratio, ar));
 			// render and filter variations
 			FOR_EACH(variation, style().variations) {
-				Image img = render_symbol(symbol, *variation->filter, variation->border_radius, 200 * ar, 200);
-				Image resampled((int) (wh * ar), (int) wh, false);
+				Image img = render_symbol(symbol, *variation->filter, variation->border_radius, int(200 * ar), 200);
+				Image resampled(int(wh * ar), int(wh), false);
 				resample(img, resampled);
 				symbols.push_back(Bitmap(resampled));
 			}
diff --git a/src/util/io/package.cpp b/src/util/io/package.cpp
index e0814f3f..de87292c 100644
--- a/src/util/io/package.cpp
+++ b/src/util/io/package.cpp
@@ -575,4 +575,4 @@ String IncludePackage::typeName() const { return _("include"); }
 
 IMPLEMENT_REFLECTION(IncludePackage) {
 	REFLECT_BASE(Packaged);
-}
\ No newline at end of file
+}
diff --git a/src/util/io/reader.cpp b/src/util/io/reader.cpp
index 717b4e91..31697adc 100644
--- a/src/util/io/reader.cpp
+++ b/src/util/io/reader.cpp
@@ -17,8 +17,8 @@
 
 Reader::Reader(const InputStreamP& input, Packaged* package, const String& filename, bool ignore_invalid)
 	: indent(0), expected_indent(0), state(OUTSIDE)
-	, package(package), filename(filename), line_number(0), previous_line_number(0)
 	, ignore_invalid(ignore_invalid)
+	, filename(filename), package(package), line_number(0), previous_line_number(0)
 	, input(input)
 {
 	moveNext();
@@ -27,10 +27,10 @@ Reader::Reader(const InputStreamP& input, Packaged* package, const String& filen
 
 Reader::Reader(Packaged* pkg, const String& filename)
 	: indent(0), expected_indent(0), state(OUTSIDE)
-	, package(pkg), filename(filename), line_number(0), previous_line_number(0)
 	, ignore_invalid(false)
+	, filename(filename), package(pkg), line_number(0), previous_line_number(0)
+	, input(packages.openFileFromPackage(package, filename))
 {
-	input = packages.openFileFromPackage(package, filename);
 	moveNext();
 	handleAppVersion();
 }
@@ -175,7 +175,7 @@ String read_utf8_line(wxInputStream& input, bool eat_bom, bool until_eof) {
 	// convert to string
 	buffer.push_back('\0');
 	size_t size = wxConvUTF8.MB2WC(nullptr, buffer.get(), 0);
-	if (size == -1) {
+	if (size == size_t(-1)) {
 		throw ParseError(_("Invalid UTF-8 sequence"));
 	} else if (size == 0) {
 		return _("");
diff --git a/src/util/reflect.hpp b/src/util/reflect.hpp
index 41adb186..171c9f93 100644
--- a/src/util/reflect.hpp
+++ b/src/util/reflect.hpp
@@ -163,7 +163,7 @@
  *  When reading the first value declared is the default value
  *
  *  Currently creates the methods:
- *   - Reader::handle(Enum&
+ *   - Reader::handle(Enum&)
  *   - Writer::handle(const Enum&)
  *   - GetDefaultMember::handle(const Enum&)
  */
diff --git a/src/util/rotation.cpp b/src/util/rotation.cpp
index c947bb83..e2160ed2 100644
--- a/src/util/rotation.cpp
+++ b/src/util/rotation.cpp
@@ -286,7 +286,7 @@ void RotatedDC::DrawRoundedRectangle(const RealRect& r, double radius) {
 
 void RotatedDC::DrawCircle(const RealPoint& center, double radius) {
 	wxPoint p = tr(center);
-	dc.DrawCircle(p.x + 1, p.y + 1, trS(radius));
+	dc.DrawCircle(p.x + 1, p.y + 1, int(trS(radius)));
 }
 
 void RotatedDC::DrawEllipticArc(const RealPoint& center, const RealSize& size, double start, double end) {