0.8.30: is not gcc 14.x ready

[kloczek]

Looks like last version build fails with latest gcc 14.x which is now used in fedora rawhide.

Build fails with

[tkloczko@pers-jacek x86_64-redhat-linux-gnu]$ ninja -k 0
[1/35] Compiling C object src/libaravis-0.8.so.0.8.30.p/arvxmlschema.c.o
FAILED: src/libaravis-0.8.so.0.8.30.p/arvxmlschema.c.o
/usr/bin/gcc -Isrc/libaravis-0.8.so.0.8.30.p -Isrc -I../src -I/usr/include/glib-2.0 -I/usr/lib64/glib-2.0/include -I/usr/include/libxml2 -I/usr/include/libusb-1.0 -fdiagnostics-color=always -D_FILE_OFFSET_BITS=64 -Wall -Winvalid-pch -fvisibility=hidden -m64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -O2 -g -grecord-gcc-switches -pipe -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -fdata-sections -ffunction-sections -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -flto=auto -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -Wall -Werror=format-security -fPIC -DWITH_GZFILEOP -DARAVIS_COMPILATION -MD -MQ src/libaravis-0.8.so.0.8.30.p/arvxmlschema.c.o -MF src/libaravis-0.8.so.0.8.30.p/arvxmlschema.c.o.d -o src/libaravis-0.8.so.0.8.30.p/arvxmlschema.c.o -c ../src/arvxmlschema.c
../src/arvxmlschema.c: In function ‘arv_xml_schema_validate’:
../src/arvxmlschema.c:104:51: error: passing argument 2 of ‘xmlSetStructuredErrorFunc’ from incompatible pointer type [-Wincompatible-pointer-types]
  104 |         xmlSetStructuredErrorFunc (&schema_error, _structured_error_handler);
      |                                                   ^~~~~~~~~~~~~~~~~~~~~~~~~
      |                                                   |
      |                                                   void (*)(void *, xmlError *) {aka void (*)(void *, struct _xmlError *)}
In file included from /usr/include/libxml2/libxml/valid.h:15,
                 from /usr/include/libxml2/libxml/parser.h:19,
                 from ../src/arvxmlschema.c:30:
/usr/include/libxml2/libxml/xmlerror.h:898:57: note: expected ‘xmlStructuredErrorFunc’ {aka ‘void (*)(void *, const struct _xmlError *)’} but argument is of type ‘void (*)(void *, xmlError *)’ {aka ‘void (*)(void *, struct _xmlError *)’}
  898 |                                  xmlStructuredErrorFunc handler);
      |                                  ~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~
../src/arvxmlschema.c:109:78: error: passing argument 2 of ‘xmlSchemaSetValidStructuredErrors’ from incompatible pointer type [-Wincompatible-pointer-types]
  109 |                 xmlSchemaSetValidStructuredErrors (schema->priv->valid_ctxt, _structured_error_handler, &schema_error);
      |                                                                              ^~~~~~~~~~~~~~~~~~~~~~~~~
      |                                                                              |
      |                                                                              void (*)(void *, xmlError *) {aka void (*)(void *, struct _xmlError *)}
In file included from ../src/arvxmlschema.c:32:
/usr/include/libxml2/libxml/xmlschemas.h:185:65: note: expected ‘xmlStructuredErrorFunc’ {aka ‘void (*)(void *, const struct _xmlError *)’} but argument is of type ‘void (*)(void *, xmlError *)’ {aka ‘void (*)(void *, struct _xmlError *)’}
  185 |                                          xmlStructuredErrorFunc serror,
      |                                          ~~~~~~~~~~~~~~~~~~~~~~~^~~~~~
../src/arvxmlschema.c:110:80: error: passing argument 2 of ‘xmlSchemaSetParserStructuredErrors’ from incompatible pointer type [-Wincompatible-pointer-types]
  110 |                 xmlSchemaSetParserStructuredErrors (schema->priv->parser_ctxt, _structured_error_handler, &schema_error);
      |                                                                                ^~~~~~~~~~~~~~~~~~~~~~~~~
      |                                                                                |
      |                                                                                void (*)(void *, xmlError *) {aka void (*)(void *, struct _xmlError *)}
/usr/include/libxml2/libxml/xmlschemas.h:156:65: note: expected ‘xmlStructuredErrorFunc’ {aka ‘void (*)(void *, const struct _xmlError *)’} but argument is of type ‘void (*)(void *, xmlError *)’ {aka ‘void (*)(void *, struct _xmlError *)’}
  156 |                                          xmlStructuredErrorFunc serror,
      |                                          ~~~~~~~~~~~~~~~~~~~~~~~^~~~~~
../src/arvxmlschema.c: In function ‘arv_xml_schema_class_init’:
../src/arvxmlschema.c:215:9: warning: ‘xmlLineNumbersDefault’ is deprecated [-Wdeprecated-declarations]
  215 |         xmlLineNumbersDefault (1);
      |         ^~~~~~~~~~~~~~~~~~~~~
/usr/include/libxml2/libxml/parser.h:967:17: note: declared here
  967 |                 xmlLineNumbersDefault   (int val);
      |                 ^~~~~~~~~~~~~~~~~~~~~
ninja: build stopped: cannot make progress due to previous errors.