Update FLTK to 1.4.4

.github/workflows/main.yml

@@ -19,19 +19,18 @@ jobs:
       - name: Checkout FLTK
         uses: actions/checkout@master
         with:
-          path: fltk
+          path: lib/fltk
           repository: fltk/fltk
-          ref: release-1.3.7
+          ref: release-1.4.0rc1
           fetch-depth: 1
 
       - name: Install FLTK
-        working-directory: fltk
+        working-directory: lib/fltk
         run: |
-          ./autogen.sh --prefix="$PWD/.." --with-abiversion=10307
+          cmake -D CMAKE_INSTALL_PREFIX="$(realpath "$PWD/../..")" -D CMAKE_BUILD_TYPE=Release -D FLTK_GRAPHICS_CAIRO=1 -D FLTK_BACKEND_WAYLAND=0
           make
           make install
 
       - name: Build
         run: |
-          export PATH="$PWD/bin:$PATH"
           make

.gitignore

@@ -3,7 +3,6 @@ bin/
 lib/
 share/
 tmp/
-fltk/
 
 # no FL includes
 include/FL/

INSTALL.md

@@ -18,14 +18,14 @@ If the pre-built release already works for you, you don't have to build it yours
 1. On GitHub, click the green "**Code**" button and click "**Download ZIP**". This will download **polished-map-master.zip**.
 2. Unzip polished-map-master.zip. This will create the **polished-map-master** folder.
 3. Navigate to the polished-map-master folder in Explorer.
-4. Download fltk-1.3.7-source.tar.bz2 or fltk-1.3.7-source.tar.gz from [**fltk.org**](https://www.fltk.org/software.php) to a new **polished-map-master\lib** subfolder.
-5. Extract fltk-1.3.7-source.tar (you may need a program such as [7-Zip](https://www.7-zip.org/)). This will create the lib\**fltk-1.3.7** folder.
-6. Open lib\fltk-1.3.7\abi-version.ide in a text editor such as Notepad and replace "`#undef FL_ABI_VERSION`" with "`#define FL_ABI_VERSION 10307`". Save it.
-7. Open lib\fltk-1.3.7\ide\VisualC2010\fltk.sln in Visual Studio 2019. (Other versions may or may not work, I haven't tried.)
-8. A "Retarget Projects" dialog will open, since fltk.sln was made for Visual Studio 2010. Click OK to upgrade the Windows SDK version and platform toolset.
-9. Go to **Build → Batch Build…**, check the projects **fltk**, **fltkimages**, **fltkpng**, **fltkjpeg**, and **fltkzlib** in the Release configuration, and click the **Build** button.
-10. Move all the .lib files from lib\fltk-1.3.7\lib\\\*.lib up to lib\\\*.lib.
-11. Copy the lib\FL folder up to include\FL.
+4. Download fltk-1.4.0rc1-source.tar.bz2 or fltk-1.4.0rc1-source.tar.gz from [**fltk.org**](https://www.fltk.org/software.php) to a new **polished-map-master\lib** subfolder.
+5. Extract fltk-1.4.0rc1-source.tar (you may need a program such as [7-Zip](https://www.7-zip.org/)). This will create the lib\\**fltk-1.4.0rc1** folder.
+6. Open Visual Studio, select **Open a local folder**, and open the lib\fltk-1.4.0rc1 folder. This will automatically generate the CMake project with a configuration named **x64-Debug** by default.
+7. From the Configuration dropdown, select **Manage Configurations...**, click the green plus sign to add a new configuration, and select **x86-Release** from the list. Set the **Configuration type** to **Release**, set the **Toolset** to **msvc_x86_x64**, and uncheck the **FLTK_GRAPHICS_GDIPLUS** option in the list of CMake variables.
+8. Set the active Configuration to **x86-Release**.
+9. In the **Solution Explorer**, switch to the **CMake Targets View**, right-click on **fltk_images**, and select **Build fltk_images**. This will also build the other required libraries: fltk, fltk_jpeg, fltk_png, and fltk_z.
+10. Move all the .lib files from lib\fltk-1.4.0rc1\out\build\x86-Release\lib\\\*.lib up to lib\\\*.lib.
+11. Copy the lib\fltk-1.4.0rc1\\**FL** folder to a new include\\**FL** folder. Also copy lib\fltk-1.4.0rc1\out\build\x86-Release\FL\fl_config.h into include\FL.
 12. Open ide\polished-map.sln in Visual Studio 2019.
 13. If the Solution Configuration dropdown on the toolbar says Debug, set it to **Release**.
 14. Go to **Build → Build Solution** or press F7 to build the project. This will create bin\Release\**polishedmap.exe**.
@@ -38,6 +38,8 @@ If the pre-built release already works for you, you don't have to build it yours
 
 You need at least g++ 7 for C++11 `<regex>` and C++17 `<string_view>` support.
 
+CMake (version 3.15 or later) is required for building FLTK 1.4.
+
 #### Ubuntu/Debian
 
 Run the following commands:
@@ -65,18 +67,15 @@ Run the following commands:
 git clone https://github.com/Rangi42/polished-map.git
 cd polished-map
 
-# Build FLTK 1.3.7 with the latest ABI enabled
-# (even if you already have libfltk1.3-dev installed)
-git clone --branch release-1.3.7 --depth 1 https://github.com/fltk/fltk.git
-pushd fltk
-./autogen.sh --prefix="$PWD/.." --with-abiversion=10307
+# Build FLTK 1.4.0
+git clone --branch release-1.4.0rc1 --depth 1 https://github.com/fltk/fltk.git lib/fltk
+pushd lib/fltk
+cmake -D CMAKE_INSTALL_PREFIX="$(realpath "$PWD/../..")" -D CMAKE_BUILD_TYPE=Release -D FLTK_GRAPHICS_CAIRO=1 -D FLTK_BACKEND_WAYLAND=0
 make
 make install
 popd
 
 # Build Polished Map
-# ("export PATH" is needed if bin/fltk-config is not already in your PATH)
-export PATH="$PWD/bin:$PATH"
 make
 
 # Install Polished Map

Makefile

@@ -14,8 +14,10 @@ tmpdir = tmp
 debugdir = tmp/debug
 bindir = bin
 
-CXXFLAGS = -std=c++17 -I$(srcdir) -I$(resdir) $(shell fltk-config --use-images --cxxflags)
-LDFLAGS = $(shell fltk-config --use-images --ldflags) $(shell pkg-config --libs libpng xpm)
+fltk-config = $(bindir)/fltk-config
+
+CXXFLAGS = -std=c++17 -I$(srcdir) -I$(resdir) $(shell $(fltk-config) --use-images --cxxflags)
+LDFLAGS = $(shell $(fltk-config) --use-images --ldflags) $(shell pkg-config --libs libpng xpm)
 
 RELEASEFLAGS = -DNDEBUG -O3 -flto -march=native
 DEBUGFLAGS = -DDEBUG -D_DEBUG -O0 -g -ggdb3 -Wall -Wextra -pedantic -Wno-unknown-pragmas -Wno-sign-compare -Wno-unused-parameter

ide/polished-map.vcxproj

@@ -21,13 +21,13 @@
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
-    <PlatformToolset>v142</PlatformToolset>
+    <PlatformToolset>v143</PlatformToolset>
     <CharacterSet>Unicode</CharacterSet>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
-    <PlatformToolset>v142</PlatformToolset>
+    <PlatformToolset>v143</PlatformToolset>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
   </PropertyGroup>
@@ -74,7 +74,7 @@
     <Link>
       <SubSystem>Windows</SubSystem>
       <GenerateDebugInformation>DebugFull</GenerateDebugInformation>
-      <AdditionalDependencies>fltkimagesd.lib;fltkpngd.lib;fltkjpegd.lib;fltkzlibd.lib;fltkd.lib;opengl32.lib;glu32.lib;comctl32.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>fltk_imagesd.lib;fltk_pngd.lib;fltk_jpegd.lib;fltk_zd.lib;fltkd.lib;opengl32.lib;glu32.lib;comctl32.lib;Ws2_32.lib;%(AdditionalDependencies)</AdditionalDependencies>
       <IgnoreSpecificDefaultLibraries>libcmtd.lib;%(IgnoreSpecificDefaultLibraries)</IgnoreSpecificDefaultLibraries>
       <AdditionalLibraryDirectories>..\lib\Debug</AdditionalLibraryDirectories>
       <AdditionalOptions>/ignore:4099 %(AdditionalOptions)</AdditionalOptions>
@@ -103,7 +103,7 @@
       <GenerateDebugInformation>false</GenerateDebugInformation>
       <EnableCOMDATFolding>true</EnableCOMDATFolding>
       <OptimizeReferences>true</OptimizeReferences>
-      <AdditionalDependencies>fltkimages.lib;fltkpng.lib;fltkjpeg.lib;fltkzlib.lib;fltk.lib;opengl32.lib;glu32.lib;comctl32.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>fltk_images.lib;fltk_png.lib;fltk_jpeg.lib;fltk_z.lib;fltk.lib;opengl32.lib;glu32.lib;comctl32.lib;Ws2_32.lib;%(AdditionalDependencies)</AdditionalDependencies>
       <IgnoreSpecificDefaultLibraries>libcmt.lib;%(IgnoreSpecificDefaultLibraries)</IgnoreSpecificDefaultLibraries>
       <AdditionalLibraryDirectories>..\lib</AdditionalLibraryDirectories>
       <AdditionalOptions>/ignore:4099 %(AdditionalOptions)</AdditionalOptions>

include/png.h

@@ -1,9 +1,9 @@
 
 /* png.h - header file for PNG reference library
  *
- * libpng version 1.6.37 - April 14, 2019
+ * libpng version 1.6.43
  *
- * Copyright (c) 2018-2019 Cosmin Truta
+ * Copyright (c) 2018-2024 Cosmin Truta
  * Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson
  * Copyright (c) 1996-1997 Andreas Dilger
  * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
@@ -15,7 +15,7 @@
  *   libpng versions 0.89, June 1996, through 0.96, May 1997: Andreas Dilger
  *   libpng versions 0.97, January 1998, through 1.6.35, July 2018:
  *     Glenn Randers-Pehrson
- *   libpng versions 1.6.36, December 2018, through 1.6.37, April 2019:
+ *   libpng versions 1.6.36, December 2018, through 1.6.43, February 2024:
  *     Cosmin Truta
  *   See also "Contributing Authors", below.
  */
@@ -27,8 +27,8 @@
  * PNG Reference Library License version 2
  * ---------------------------------------
  *
- *  * Copyright (c) 1995-2019 The PNG Reference Library Authors.
- *  * Copyright (c) 2018-2019 Cosmin Truta.
+ *  * Copyright (c) 1995-2024 The PNG Reference Library Authors.
+ *  * Copyright (c) 2018-2024 Cosmin Truta.
  *  * Copyright (c) 2000-2002, 2004, 2006-2018 Glenn Randers-Pehrson.
  *  * Copyright (c) 1996-1997 Andreas Dilger.
  *  * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
@@ -239,7 +239,7 @@
  *    ...
  *    1.5.30                  15    10530  15.so.15.30[.0]
  *    ...
- *    1.6.37                  16    10637  16.so.16.37[.0]
+ *    1.6.43                  16    10643  16.so.16.43[.0]
  *
  *    Henceforth the source version will match the shared-library major and
  *    minor numbers; the shared-library major version number will be used for
@@ -255,9 +255,6 @@
  *    to the info_ptr or png_ptr members through png.h, and the compiled
  *    application is loaded with a different version of the library.
  *
- *    DLLNUM will change each time there are forward or backward changes
- *    in binary compatibility (e.g., when a new feature is added).
- *
  * See libpng.txt or libpng.3 for more information.  The PNG specification
  * is available as a W3C Recommendation and as an ISO/IEC Standard; see
  * <https://www.w3.org/TR/2003/REC-PNG-20031110/>
@@ -278,19 +275,21 @@
  */
 
 /* Version information for png.h - this should match the version in png.c */
-#define PNG_LIBPNG_VER_STRING "1.6.37"
-#define PNG_HEADER_VERSION_STRING " libpng version 1.6.37 - April 14, 2019\n"
+#define PNG_LIBPNG_VER_STRING "1.6.43"
+#define PNG_HEADER_VERSION_STRING " libpng version " PNG_LIBPNG_VER_STRING "\n"
 
-#define PNG_LIBPNG_VER_SONUM   16
-#define PNG_LIBPNG_VER_DLLNUM  16
+/* The versions of shared library builds should stay in sync, going forward */
+#define PNG_LIBPNG_VER_SHAREDLIB 16
+#define PNG_LIBPNG_VER_SONUM     PNG_LIBPNG_VER_SHAREDLIB /* [Deprecated] */
+#define PNG_LIBPNG_VER_DLLNUM    PNG_LIBPNG_VER_SHAREDLIB /* [Deprecated] */
 
 /* These should match the first 3 components of PNG_LIBPNG_VER_STRING: */
 #define PNG_LIBPNG_VER_MAJOR   1
 #define PNG_LIBPNG_VER_MINOR   6
-#define PNG_LIBPNG_VER_RELEASE 37
+#define PNG_LIBPNG_VER_RELEASE 43
 
 /* This should be zero for a public release, or non-zero for a
- * development version.  [Deprecated]
+ * development version.
  */
 #define PNG_LIBPNG_VER_BUILD  0
 
@@ -318,7 +317,7 @@
  * From version 1.0.1 it is:
  * XXYYZZ, where XX=major, YY=minor, ZZ=release
  */
-#define PNG_LIBPNG_VER 10637 /* 1.6.37 */
+#define PNG_LIBPNG_VER 10643 /* 1.6.43 */
 
 /* Library configuration: these options cannot be changed after
  * the library has been built.
@@ -428,7 +427,7 @@ extern "C" {
 /* This triggers a compiler error in png.c, if png.c and png.h
  * do not agree upon the version number.
  */
-typedef char* png_libpng_version_1_6_37;
+typedef char* png_libpng_version_1_6_43;
 
 /* Basic control structions.  Read libpng-manual.txt or libpng.3 for more info.
  *
@@ -849,7 +848,7 @@ PNG_FUNCTION(void, (PNGCAPI *png_longjmp_ptr), PNGARG((jmp_buf, int)), typedef);
 #define PNG_TRANSFORM_GRAY_TO_RGB   0x2000      /* read only */
 /* Added to libpng-1.5.4 */
 #define PNG_TRANSFORM_EXPAND_16     0x4000      /* read only */
-#if INT_MAX >= 0x8000 /* else this might break */
+#if ~0U > 0xffffU /* or else this might break on a 16-bit machine */
 #define PNG_TRANSFORM_SCALE_16      0x8000      /* read only */
 #endif
 
@@ -908,15 +907,15 @@ PNG_EXPORT(2, void, png_set_sig_bytes, (png_structrp png_ptr, int num_bytes));
 /* Check sig[start] through sig[start + num_to_check - 1] to see if it's a
  * PNG file.  Returns zero if the supplied bytes match the 8-byte PNG
  * signature, and non-zero otherwise.  Having num_to_check == 0 or
- * start > 7 will always fail (ie return non-zero).
+ * start > 7 will always fail (i.e. return non-zero).
  */
 PNG_EXPORT(3, int, png_sig_cmp, (png_const_bytep sig, size_t start,
     size_t num_to_check));
 
 /* Simple signature checking function.  This is the same as calling
- * png_check_sig(sig, n) := !png_sig_cmp(sig, 0, n).
+ * png_check_sig(sig, n) := (png_sig_cmp(sig, 0, n) == 0).
  */
-#define png_check_sig(sig, n) !png_sig_cmp((sig), 0, (n))
+#define png_check_sig(sig, n) (png_sig_cmp((sig), 0, (n)) == 0) /* DEPRECATED */
 
 /* Allocate and initialize png_ptr struct for reading, and any other memory. */
 PNG_EXPORTA(4, png_structp, png_create_read_struct,
@@ -1446,7 +1445,7 @@ PNG_EXPORT(66, void, png_set_crc_action, (png_structrp png_ptr, int crit_action,
  * mainly useful for testing, as the defaults should work with most users.
  * Those users who are tight on memory or want faster performance at the
  * expense of compression can modify them.  See the compression library
- * header file (zlib.h) for an explination of the compression functions.
+ * header file (zlib.h) for an explanation of the compression functions.
  */
 
 /* Set the filtering method(s) used by libpng.  Currently, the only valid
@@ -1501,7 +1500,7 @@ PNG_FIXED_EXPORT(209, void, png_set_filter_heuristics_fixed,
  * 0 - 9, corresponding directly to the zlib compression levels 0 - 9
  * (0 - no compression, 9 - "maximal" compression).  Note that tests have
  * shown that zlib compression levels 3-6 usually perform as well as level 9
- * for PNG images, and do considerably fewer caclulations.  In the future,
+ * for PNG images, and do considerably fewer calculations.  In the future,
  * these values may not correspond directly to the zlib compression levels.
  */
 #ifdef PNG_WRITE_CUSTOMIZE_COMPRESSION_SUPPORTED
@@ -1730,12 +1729,9 @@ PNG_EXPORT(97, void, png_free, (png_const_structrp png_ptr, png_voidp ptr));
 PNG_EXPORT(98, void, png_free_data, (png_const_structrp png_ptr,
     png_inforp info_ptr, png_uint_32 free_me, int num));
 
-/* Reassign responsibility for freeing existing data, whether allocated
+/* Reassign the responsibility for freeing existing data, whether allocated
  * by libpng or by the application; this works on the png_info structure passed
- * in, it does not change the state for other png_info structures.
- *
- * It is unlikely that this function works correctly as of 1.6.0 and using it
- * may result either in memory leaks or double free of allocated data.
+ * in, without changing the state for other png_info structures.
  */
 PNG_EXPORT(99, void, png_data_freer, (png_const_structrp png_ptr,
     png_inforp info_ptr, int freer, png_uint_32 mask));
@@ -3207,11 +3203,18 @@ PNG_EXPORT(245, int, png_image_write_to_memory, (png_imagep image, void *memory,
 #ifdef PNG_MIPS_MSA_API_SUPPORTED
 #  define PNG_MIPS_MSA   6 /* HARDWARE: MIPS Msa SIMD instructions supported */
 #endif
-#define PNG_IGNORE_ADLER32 8
+#ifdef PNG_DISABLE_ADLER32_CHECK_SUPPORTED
+#  define PNG_IGNORE_ADLER32 8 /* SOFTWARE: disable Adler32 check on IDAT */
+#endif
 #ifdef PNG_POWERPC_VSX_API_SUPPORTED
-#  define PNG_POWERPC_VSX   10 /* HARDWARE: PowerPC VSX SIMD instructions supported */
+#  define PNG_POWERPC_VSX   10 /* HARDWARE: PowerPC VSX SIMD instructions
+                                * supported */
 #endif
-#define PNG_OPTION_NEXT  12 /* Next option - numbers must be even */
+#ifdef PNG_MIPS_MMI_API_SUPPORTED
+#  define PNG_MIPS_MMI   12 /* HARDWARE: MIPS MMI SIMD instructions supported */
+#endif
+
+#define PNG_OPTION_NEXT  14 /* Next option - numbers must be even */
 
 /* Return values: NOTE: there are four values and 'off' is *not* zero */
 #define PNG_OPTION_UNSET   0 /* Unset - defaults to off */

include/pngconf.h

@@ -1,9 +1,9 @@
 
 /* pngconf.h - machine-configurable file for libpng
  *
- * libpng version 1.6.37
+ * libpng version 1.6.43
  *
- * Copyright (c) 2018-2019 Cosmin Truta
+ * Copyright (c) 2018-2024 Cosmin Truta
  * Copyright (c) 1998-2002,2004,2006-2016,2018 Glenn Randers-Pehrson
  * Copyright (c) 1996-1997 Andreas Dilger
  * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
@@ -180,8 +180,8 @@
  * compiler-specific macros to the values required to change the calling
  * conventions of the various functions.
  */
-#if defined(_Windows) || defined(_WINDOWS) || defined(WIN32) ||\
-    defined(_WIN32) || defined(__WIN32__) || defined(__CYGWIN__)
+#if defined(_WIN32) || defined(__WIN32__) || defined(__NT__) || \
+    defined(__CYGWIN__)
   /* Windows system (DOS doesn't support DLLs).  Includes builds under Cygwin or
    * MinGW on any architecture currently supported by Windows.  Also includes
    * Watcom builds but these need special treatment because they are not