Thank you very much. The problem with MAX is solved now. But unfortunately I have more undefined references.

Here the output of my log:

C:/Strawberry/c/bin/../lib/gcc/x86_64-w64-mingw32/8.3.0/../../../../x8
+6_64-w64-mingw32/bin/ld.exe: encGlue.o:encGlue.c:(.text+0x45f): undef
+ined reference to `Perl_to_utf8_lower'
C:/Strawberry/c/bin/../lib/gcc/x86_64-w64-mingw32/8.3.0/../../../../x8
+6_64-w64-mingw32/bin/ld.exe: encGlue.o:encGlue.c:(.text+0x4bf): undef
+ined reference to `Perl_to_utf8_upper'
C:/Strawberry/c/bin/../lib/gcc/x86_64-w64-mingw32/8.3.0/../../../../x8
+6_64-w64-mingw32/bin/ld.exe: encGlue.o:encGlue.c:(.text+0x98): undefi
+ned reference to `Perl_is_uni_alpha'
C:/Strawberry/c/bin/../lib/gcc/x86_64-w64-mingw32/8.3.0/../../../../x8
+6_64-w64-mingw32/bin/ld.exe: encGlue.o:encGlue.c:(.text+0xb8): undefi
+ned reference to `Perl_is_uni_alnum'
C:/Strawberry/c/bin/../lib/gcc/x86_64-w64-mingw32/8.3.0/../../../../x8
+6_64-w64-mingw32/bin/ld.exe: encGlue.o:encGlue.c:(.text+0xd8): undefi
+ned reference to `Perl_is_uni_space'
C:/Strawberry/c/bin/../lib/gcc/x86_64-w64-mingw32/8.3.0/../../../../x8
+6_64-w64-mingw32/bin/ld.exe: encGlue.o:encGlue.c:(.text+0xf8): undefi
+ned reference to `Perl_is_uni_upper'
collect2.exe: error: ld returned 1 exit status
gmake: *** [Makefile:617: blib\arch\auto\Tk\Tk.xs.dll] Error 1
  SREZIC/Tk-804.034.tar.gz
  C:\STRAWB~1\c\bin\gmake.exe -- NOT OK
Stopping: 'install' failed for 'Tk'.
Failed during this command:
 SREZIC/Tk-804.034.tar.gz                     : make NO
[download]

Do you have any idea what could be the problem here?

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