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pdf-document-map.cc: In constructor ‘pdf::DocumentMap::DocumentMap(const std::vector<const char*>&)’:
pdf-document-map.cc:45:42: error: ‘std::__cxx11::basic_string<char>’ is an inaccessible base of ‘GooString’
45 |                 if (catalog->indexToLabel(i, &s)) {
|                     ~^~~
make: *** [<incorporato>: pdf-document-map.o] Error 1

solved. tnx for patch.

Updated.

@amos, thanks for the patch.

Two more required patches:

@@ -163,7 +163,11 @@ static void cmyk_to_rgb(const double cmyk[], double rgb[])
   pdf::gfx::RgbColor rgb_cc;
   for (int i = 0; i < 4; i++)
     cmyk_cc.c[i] = pdf::gfx::double_as_color_component(cmyk[i]);
+#if POPPLER_VERSION >= 260600
+  cmyk_space.getRGB(cmyk_cc, &rgb_cc);
+#else
   cmyk_space.getRGB(&cmyk_cc, &rgb_cc);
+#endif
   rgb[0] = pdf::gfx::color_component_as_double(rgb_cc.r);
   rgb[1] = pdf::gfx::color_component_as_double(rgb_cc.g);
   rgb[2] = pdf::gfx::color_component_as_double(rgb_cc.b);
@@ -175,7 +175,11 @@ -static bool annotations_callback(pdf::ant::Annotation *annotation, void *user_data)
   std::string border_color;
   if (annotation->getType() != pdf::ant::Annotation::typeLink)
     return true;
+#if POPPLER_VERSION >= 260600
+  const pdf::ant::Color *color = annotation->getColor();
+#else
   pdf::ant::Color *color = annotation->getColor();
+#endif
   if (color == nullptr)
   {
     border_colors.push_back("");

This build failure is related to poppler 26.05.0 having been released and removing this type. Unfortunately, there regularly are upstream changes to poppler which tend to break functionality of pdf2djvu.

As mentioned in one of the previous comments, I am currently trying to keep a fork of the archived pdf2djvu repository compatible with upstream changes, although not doing any explicit releases, thus possibly requiring a dedicated pdf2djvu-git AUR package.

autoconf.hh:66:9: warning: ‘POPPLER_VERSION’ redefined
66 | #define POPPLER_VERSION 260500
|         ^
In file included from /usr/include/poppler/Error.h:32,
from /usr/include/poppler/CryptoSignBackend.h:20,
from /usr/include/poppler/PDFDoc.h:57,
from pdf-backend.hh:31:
/usr/include/poppler/poppler-config.h:33:9: note: this is the location of the previous definition
33 | #define POPPLER_VERSION "26.05.0"
|         ^
pdf-backend.hh:66:15: error: ‘SplashCoord’ in namespace ‘::’ does not name a type; did you mean ‘SplashColor’?
66 |     typedef ::SplashCoord Coord;
|               ^~~
|               SplashColor
make: *** [<incorporato>: image-filter.o] Error 1
==> ERRORE: Si è verificato un errore in build().
<(pre>

It didn’t work for me.

python-nose 1.3.7-19 and python-setuptools 1:80.9.0-4

It works just fine for me, @simona.
Please make sure your system is up-to-date (pacman -Syu), mainly these pakages
python-nose 1.3.7-19
python-setuptools 1:80.9.0-4

Traceback (most recent call last):
File "<string>", line 1, in <module>
import nose; nose.main()
~^^
File "/usr/lib/python3.14/site-packages/nose/core.py", line 118, in init
unittest.TestProgram.init(
~^
self, module=module, defaultTest=defaultTest,
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
argv=argv, testRunner=testRunner, testLoader=testLoader,
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
**extra_args)
^^^^^^^^^^^^^
File "/usr/lib/python3.14/unittest/main.py", line 103, in init
self.parseArgs(argv)
^^^^^^
File "/usr/lib/python3.14/site-packages/nose/core.py", line 145, in parseArgs
self.config.configure(argv, doc=self.usage())
~^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/lib/python3.14/site-packages/nose/config.py", line 281, in configure
options, args = self._parseArgs(argv, cfg_files)
~^^^^^^^^^^^^^^^^^
File "/usr/lib/python3.14/site-packages/nose/config.py", line 268, in _parseArgs
self.getParser(), self.configSection, file_error=warn_sometimes)
^^
File "/usr/lib/python3.14/site-packages/nose/config.py", line 590, in getParser
self.plugins.loadPlugins()
^^
File "/usr/lib/python3.14/site-packages/nose/plugins/manager.py", line 381, in loadPlugins
for ep in iter_entry_points(entry_point):
~^^^^^^^^^^^^^
File "/usr/lib/python3.14/site-packages/pkg_resources/init.py", line 741, in <genexpr>
for entry in dist.get_entry_map(group).values()
^^^^^^^
File "/usr/lib/python3.14/site-packages/pkg_resources/init.py", line 3216, in get_entry_map
self._ep_map = EntryPoint.parse_map(
^
self._get_metadata('entry_points.txt'), self
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
)
^
File "/usr/lib/python3.14/site-packages/pkg_resources/init.py", line 2884, in parse_map
maps[group] = cls.parse_group(group, lines, dist)
~~~^^^^^^^^^^^^^^^^^^^^
File "/usr/lib/python3.14/site-packages/pkg_resources/init.py", line 2854, in parse_group
raise ValueError("Invalid group name", group)