Given following log snippets, their explanation, and nothing else, explain what failure, if any, occurred during build of this package.

  Snippets are in a format of [X] : [Y], where [X] is a log snippet, and [Y] is the explanation.

  Snippets are delimited with '================'.

  Drawing on information from all snippets, provide a concise explanation of the issue and recommend a solution.

  Explanation of the issue, and recommended solution, should take a handful of sentences.

  Snippets:

  [FAILED: backend/dvi/mdvi-lib/libmdvi.a.p/dviread.c.o 
gcc -Ibackend/dvi/mdvi-lib/libmdvi.a.p -Ibackend/dvi/mdvi-lib -I../backend/dvi/mdvi-lib -I. -I.. -fvisibility=hidden -fdiagnostics-color=always -D_FILE_OFFSET_BITS=64 -Wall -Winvalid-pch -DHAVE_CONFIG_H -Wno-deprecated-declarations -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -m32 -march=i686 -mtune=generic -msse2 -mfpmath=sse -mstackrealign -fasynchronous-unwind-tables -fstack-clash-protection -fPIC -MD -MQ backend/dvi/mdvi-lib/libmdvi.a.p/dviread.c.o -MF backend/dvi/mdvi-lib/libmdvi.a.p/dviread.c.o.d -o backend/dvi/mdvi-lib/libmdvi.a.p/dviread.c.o -c ../backend/dvi/mdvi-lib/dviread.c
In file included from /usr/include/kpathsea/debug.h:26,
                 from ../backend/dvi/mdvi-lib/private.h:35,
                 from ../backend/dvi/mdvi-lib/dviread.c:30:
/usr/include/kpathsea/c-std.h:48:14: error: conflicting types for ‘getenv’; have ‘char *(void)’
   48 | extern char *getenv ();
      |              ^~~~~~
In file included from ../backend/dvi/mdvi-lib/dviread.c:21:
/usr/include/stdlib.h:773:14: note: previous declaration of ‘getenv’ with type ‘char *(const char *)’
  773 | extern char *getenv (const char *__name) __THROW __nonnull ((1)) __wur;
      |              ^~~~~~
In file included from /usr/include/kpathsea/c-std.h:76:
/usr/include/kpathsea/c-memstr.h:57:14: error: conflicting types for ‘strtok’; have ‘char *(void)’
   57 | extern char *strtok ();
      |              ^~~~~~
In file included from ../backend/dvi/mdvi-lib/dviread.c:23:
/usr/include/string.h:356:14: note: previous declaration of ‘strtok’ with type ‘char *(char * restrict,  const char * restrict)’
  356 | extern char *strtok (char *__restrict __s, const char *__restrict __delim)
      |              ^~~~~~
/usr/include/kpathsea/c-memstr.h:59:14: error: conflicting types for ‘strstr’; have ‘char *(void)’
   59 | extern char *strstr ();
      |              ^~~~~~
/usr/include/string.h:350:14: note: previous declaration of ‘strstr’ with type ‘char *(const char *, const char *)’
  350 | extern char *strstr (const char *__haystack, const char *__needle)
      |              ^~~~~~
../backend/dvi/mdvi-lib/dviread.c: In function ‘mdvi_init_context’:
../backend/dvi/mdvi-lib/dviread.c:767:9: warning: ignoring return value of ‘fread’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
  767 |         fread(dvi->fileid, 1, n, p);
      |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~
[79/378] gcc -Ibackend/dvi/mdvi-lib/libmdvi.a.p -Ibackend/dvi/mdvi-lib -I../backend/dvi/mdvi-lib -I. -I.. -fvisibility=hidden -fdiagnostics-color=always -D_FILE_OFFSET_BITS=64 -Wall -Winvalid-pch -DHAVE_CONFIG_H -Wno-deprecated-declarations -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -m32 -march=i686 -mtune=generic -msse2 -mfpmath=sse -mstackrealign -fasynchronous-unwind-tables -fstack-clash-protection -fPIC -MD -MQ backend/dvi/mdvi-lib/libmdvi.a.p/font.c.o -MF backend/dvi/mdvi-lib/libmdvi.a.p/font.c.o.d -o backend/dvi/mdvi-lib/libmdvi.a.p/font.c.o -c ../backend/dvi/mdvi-lib/font.c
FAILED: backend/dvi/mdvi-lib/libmdvi.a.p/font.c.o 
gcc -Ibackend/dvi/mdvi-lib/libmdvi.a.p -Ibackend/dvi/mdvi-lib -I../backend/dvi/mdvi-lib -I. -I.. -fvisibility=hidden -fdiagnostics-color=always -D_FILE_OFFSET_BITS=64 -Wall -Winvalid-pch -DHAVE_CONFIG_H -Wno-deprecated-declarations -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -m32 -march=i686 -mtune=generic -msse2 -mfpmath=sse -mstackrealign -fasynchronous-unwind-tables -fstack-clash-protection -fPIC -MD -MQ backend/dvi/mdvi-lib/libmdvi.a.p/font.c.o -MF backend/dvi/mdvi-lib/libmdvi.a.p/font.c.o.d -o backend/dvi/mdvi-lib/libmdvi.a.p/font.c.o -c ../backend/dvi/mdvi-lib/font.c
In file included from /usr/include/kpathsea/debug.h:26,
                 from ../backend/dvi/mdvi-lib/private.h:35,
                 from ../backend/dvi/mdvi-lib/font.c:23:
/usr/include/kpathsea/c-std.h:48:14: error: conflicting types for ‘getenv’; have ‘char *(void)’
   48 | extern char *getenv ();
      |              ^~~~~~
In file included from ../backend/dvi/mdvi-lib/font.c:20:
/usr/include/stdlib.h:773:14: note: previous declaration of ‘getenv’ with type ‘char *(const char *)’
  773 | extern char *getenv (const char *__name) __THROW __nonnull ((1)) __wur;
      |              ^~~~~~
In file included from /usr/include/kpathsea/c-std.h:76:
/usr/include/kpathsea/c-memstr.h:57:14: error: conflicting types for ‘strtok’; have ‘char *(void)’
   57 | extern char *strtok ();
      |              ^~~~~~
In file included from ../backend/dvi/mdvi-lib/common.h:28,
                 from ../backend/dvi/mdvi-lib/mdvi.h:27,
                 from ../backend/dvi/mdvi-lib/font.c:22:
/usr/include/string.h:356:14: note: previous declaration of ‘strtok’ with type ‘char *(char * restrict,  const char * restrict)’
  356 | extern char *strtok (char *__restrict __s, const char *__restrict __delim)
      |              ^~~~~~
/usr/include/kpathsea/c-memstr.h:59:14: error: conflicting types for ‘strstr’; have ‘char *(void)’
   59 | extern char *strstr ();
      |              ^~~~~~
/usr/include/string.h:350:14: note: previous declaration of ‘strstr’ with type ‘char *(const char *, const char *)’
  350 | extern char *strstr (const char *__haystack, const char *__needle)
      |              ^~~~~~
[80/378] gcc -Ibackend/dvi/mdvi-lib/libmdvi.a.p -Ibackend/dvi/mdvi-lib -I../backend/dvi/mdvi-lib -I. -I.. -fvisibility=hidden -fdiagnostics-color=always -D_FILE_OFFSET_BITS=64 -Wall -Winvalid-pch -DHAVE_CONFIG_H -Wno-deprecated-declarations -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -m32 -march=i686 -mtune=generic -msse2 -mfpmath=sse -mstackrealign -fasynchronous-unwind-tables -fstack-clash-protection -fPIC -MD -MQ backend/dvi/mdvi-lib/libmdvi.a.p/files.c.o -MF backend/dvi/mdvi-lib/libmdvi.a.p/files.c.o.d -o backend/dvi/mdvi-lib/libmdvi.a.p/files.c.o -c ../backend/dvi/mdvi-lib/files.c
[81/378] gcc -Ibackend/dvi/mdvi-lib/libmdvi.a.p -Ibackend/dvi/mdvi-lib -I../backend/dvi/mdvi-lib -I. -I.. -fvisibility=hidden -fdiagnostics-color=always -D_FILE_OFFSET_BITS=64 -Wall -Winvalid-pch -DHAVE_CONFIG_H -Wno-deprecated-declarations -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -m32 -march=i686 -mtune=generic -msse2 -mfpmath=sse -mstackrealign -fasynchronous-unwind-tables -fstack-clash-protection -fPIC -MD -MQ backend/dvi/mdvi-lib/libmdvi.a.p/bitmap.c.o -MF backend/dvi/mdvi-lib/libmdvi.a.p/bitmap.c.o.d -o backend/dvi/mdvi-lib/libmdvi.a.p/bitmap.c.o -c ../backend/dvi/mdvi-lib/bitmap.c
[82/378] env PKG_CONFIG_PATH=/builddir/build/BUILD/evince-48.0-build/evince-48.0/redhat-linux-build/meson-uninstalled:/usr/lib/pkgconfig:/usr/share/pkgconfig PKG_CONFIG=/usr/bin/pkg-config CC=gcc /usr/bin/g-ir-scanner --quiet --no-libtool --namespace=EvinceDocument --nsversion=3.0 --warn-all --output libdocument/EvinceDocument-3.0.gir -DEVINCE_COMPILATION -I/builddir/build/BUILD/evince-48.0-build/evince-48.0/libdocument -I/builddir/build/BUILD/evince-48.0-build/evince-48.0/redhat-linux-build/libdocument -I/builddir/build/BUILD/evince-48.0-build/evince-48.0/. -I/builddir/build/BUILD/evince-48.0-build/evince-48.0/redhat-linux-build/. --filelist=/builddir/build/BUILD/evince-48.0-build/evince-48.0/redhat-linux-build/libdocument/libevdocument3.so.4.0.0.p/EvinceDocument_3.0_gir_filelist --include=Gdk-3.0 --include=GdkPixbuf-2.0 --include=Gio-2.0 --include=GLib-2.0 --include=Gtk-3.0 --symbol-prefix=ev --identifier-prefix=Ev --pkg-export=evince-document-3.0 --cflags-begin -DHAVE_CONFIG_H -I/builddir/build/BUILD/evince-48.0-build/evince-48.0/. -I/builddir/build/BUILD/evince-48.0-build/evince-48.0/redhat-linux-build/. -I/usr/include/cairo -I/usr/include/libxml2 -I/usr/include/freetype2 -I/usr/include/libpng16 -DWITH_GZFILEOP -I/usr/include/harfbuzz -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include -I/usr/include/sysprof-6 -I/usr/include/pixman-1 -I/usr/include/gdk-pixbuf-2.0 -I/usr/include/webp -I/usr/include/libmount -I/usr/include/blkid -I/usr/include/gtk-3.0 -I/usr/include/pango-1.0 -I/usr/include/cloudproviders -I/usr/include/at-spi2-atk/2.0 -I/usr/include/at-spi-2.0 -I/usr/include/atk-1.0 -I/usr/lib/pkgconfig/../../include/dbus-1.0 -I/usr/lib/pkgconfig/../../lib/dbus-1.0/include -I/usr/include/fribidi -I/usr/include/gio-unix-2.0 -I/usr/include/synctex -I/usr/include/gobject-introspection-1.0 --cflags-end --add-include-path=/usr/share/gir-1.0 -L/builddir/build/BUILD/evince-48.0-build/evince-48.0/redhat-linux-build/libdocument --library evdocument3 --extra-library=cairo --extra-library=gdk_pixbuf-2.0 --extra-library=gobject-2.0 --extra-library=glib-2.0 --extra-library=gio-2.0 --extra-library=gtk-3 --extra-library=gdk-3 --extra-library=z --extra-library=pangocairo-1.0 --extra-library=pango-1.0 --extra-library=harfbuzz --extra-library=atk-1.0 --extra-library=cairo-gobject --extra-library=gmodule-2.0 --extra-library=xml2 --extra-library=m --extra-library=synctex --extra-library=girepository-1.0 --sources-top-dirs /builddir/build/BUILD/evince-48.0-build/evince-48.0/ --sources-top-dirs /builddir/build/BUILD/evince-48.0-build/evince-48.0/redhat-linux-build/
[83/378] gcc -Ilibview/libevview3.so.3.0.0.p -Ilibview -I../libview -I. -I.. -Ilibdocument -I../libdocument -I/usr/include/gspell-1 -I/usr/include/gtk-3.0 -I/usr/include/pango-1.0 -I/usr/include/cloudproviders -I/usr/include/cairo -I/usr/include/gdk-pixbuf-2.0 -I/usr/include/webp -I/usr/include/at-spi2-atk/2.0 -I/usr/include/at-spi-2.0 -I/usr/include/atk-1.0 -I/usr/lib/pkgconfig/../../include/dbus-1.0 -I/usr/lib/pkgconfig/../../lib/dbus-1.0/include -I/usr/include/fribidi -I/usr/include/libxml2 -I/usr/include/pixman-1 -I/usr/include/harfbuzz -I/usr/include/freetype2 -I/usr/include/libpng16 -I/usr/include/gio-unix-2.0 -I/usr/include/libmount -I/usr/include/blkid -I/usr/include/enchant-2 -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include -I/usr/include/sysprof-6 -I/usr/include/gstreamer-1.0 -I/usr/include/orc-0.4 -I/usr/include/gtk-3.0/unix-print -I/usr/include/synctex -fvisibility=hidden -fdiagnostics-color=always -D_FILE_OFFSET_BITS=64 -Wall -Winvalid-pch -DHAVE_CONFIG_H -Wno-deprecated-declarations -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -m32 -march=i686 -mtune=generic -msse2 -mfpmath=sse -mstackrealign -fasynchronous-unwind-tables -fstack-clash-protection -fPIC -pthread -DWITH_GZFILEOP '-DG_LOG_DOMAIN="EvinceView"' '-DEVINCEDATADIR="/usr/share/evince"' -DEVINCE_COMPILATION -MD -MQ libview/libevview3.so.3.0.0.p/ev-view.c.o -MF libview/libevview3.so.3.0.0.p/ev-view.c.o.d -o libview/libevview3.so.3.0.0.p/ev-view.c.o -c ../libview/ev-view.c
../libview/ev-view.c: In function ‘ev_view_move_cursor’:
../libview/ev-view.c:7203:22: warning: ‘select_start_offset’ may be used uninitialized [-Wmaybe-uninitialized]
 7203 |                 if (!get_caret_cursor_area (view, select_start_page, select_start_offset, &select_start_rect))
      |                      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../libview/ev-view.c:7034:25: note: ‘select_start_offset’ was declared here
 7034 |         gint            select_start_offset;
      |                         ^~~~~~~~~~~~~~~~~~~
../libview/ev-view.c:7203:22: warning: ‘select_start_page’ may be used uninitialized [-Wmaybe-uninitialized]
 7203 |                 if (!get_caret_cursor_area (view, select_start_page, select_start_offset, &select_start_rect))
      |                      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../libview/ev-view.c:7035:25: note: ‘select_start_page’ was declared here
 7035 |         gint            select_start_page;
      |                         ^~~~~~~~~~~~~~~~~]: [The relevant error messages saying that there are conflicting types for  ‘getenv’,  ‘strtok', ‘strstr’]


Answer: Issue: The build failed because of conflicting type declarations for standard C library functions (getenv, strtok, strstr) during the compilation of mdvi-lib.
Resolution: The cause is that the header file  backend/dvi/mdvi-lib/private.h needs to include  kpathsea/c-auto.h, which has  defines for correct header files.

The patch should look like following:
diff -up evince-46.3.1/backend/dvi/mdvi-lib/private.h.me evince-46.3.1/backend/dvi/mdvi-lib/private.h
--- evince-46.3.1/backend/dvi/mdvi-lib/private.h.me     2025-04-272 12:50:22.625676965 +0100
+++ evince-46.3.1/backend/dvi/mdvi-lib/private.h        2025-04-22 12:51:51.141355752 +0100
@@ -32,6 +32,7 @@
 #  endif
 #endif
 
+#include <kpathsea/c-auto.h>
 #include <kpathsea/debug.h>
 #include <kpathsea/tex-file.h>
 #include <kpathsea/tex-glyph.h