Failure building trunk on MSYS2 after "Fix locating pdump by symlink"

[martin rudalics <rudalics@gmx.at>]

Building trunk with MSYS2 currently fails here as:

checking for realpath... no
...
checking whether realpath works... no
...
   CC       canonicalize-lgpl.o
../../lib/canonicalize-lgpl.c:51:21: warning: no previous prototype for 'realpath' [-Wmissing-prototypes]
  # define __realpath realpath
                      ^~~~~~~~
../../lib/canonicalize-lgpl.c:117:1: note: in expansion of macro '__realpath'
  __realpath (const char *name, char *resolved)
  ^~~~~~~~~~
../../lib/canonicalize-lgpl.c:50:35: warning: no previous prototype for 'canonicalize_file_name' [-Wmissing-prototypes]
  # define __canonicalize_file_name canonicalize_file_name
                                    ^~~~~~~~~~~~~~~~~~~~~~
../../lib/canonicalize-lgpl.c:416:1: note: in expansion of macro '__canonicalize_file_name'
  __canonicalize_file_name (const char *name)
  ^~~~~~~~~~~~~~~~~~~~~~~~
...
../../src/emacs.c: In function 'load_pdump':
../../src/emacs.c:750:17: warning: implicit declaration of function 'realpath'; did you mean 'GetPath'? [-Wimplicit-function-declaration]
    char* argv0 = realpath (argv[0], NULL);
                  ^~~~~~~~
                  GetPath
../../src/emacs.c:750:17: warning: nested extern declaration of 'realpath' [-Wnested-externs]
../../src/emacs.c:750:17: warning: initialization of 'char *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
...
   CCLD     temacs.exe
../lib/libgnu.a(canonicalize-lgpl.o): In function `realpath':
C:\emacs\trunk\non-64\lib/../../lib/canonicalize-lgpl.c:294: undefined reference to `mmalloca'
C:\emacs\trunk\non-64\lib/../../lib/canonicalize-lgpl.c:294:(.text+0x7d2): relocation truncated to fit: R_X86_64_PC32 against undefined symbol `mmalloca'
C:\emacs\trunk\non-64\lib/../../lib/canonicalize-lgpl.c:305: undefined reference to `freea'
C:\emacs\trunk\non-64\lib/../../lib/canonicalize-lgpl.c:305:(.text+0x84d): relocation truncated to fit: R_X86_64_PC32 against undefined symbol `freea'
C:\emacs\trunk\non-64\lib/../../lib/canonicalize-lgpl.c:313: undefined reference to `mmalloca'
C:\emacs\trunk\non-64\lib/../../lib/canonicalize-lgpl.c:313:(.text+0x8de): relocation truncated to fit: R_X86_64_PC32 against undefined symbol `mmalloca'
C:\emacs\trunk\non-64\lib/../../lib/canonicalize-lgpl.c:316: undefined reference to `freea'
C:\emacs\trunk\non-64\lib/../../lib/canonicalize-lgpl.c:316:(.text+0x8fe): relocation truncated to fit: R_X86_64_PC32 against undefined symbol `freea'
C:\emacs\trunk\non-64\lib/../../lib/canonicalize-lgpl.c:326: undefined reference to `freea'
C:\emacs\trunk\non-64\lib/../../lib/canonicalize-lgpl.c:326:(.text+0x96e): relocation truncated to fit: R_X86_64_PC32 against undefined symbol `freea'
C:\emacs\trunk\non-64\lib/../../lib/canonicalize-lgpl.c:379: undefined reference to `freea'
C:\emacs\trunk\non-64\lib/../../lib/canonicalize-lgpl.c:379:(.text+0xd8a): relocation truncated to fit: R_X86_64_PC32 against undefined symbol `freea'
C:\emacs\trunk\non-64\lib/../../lib/canonicalize-lgpl.c:387: undefined reference to `freea'
C:\emacs\trunk\non-64\lib/../../lib/canonicalize-lgpl.c:387:(.text+0xdbe): relocation truncated to fit: R_X86_64_PC32 against undefined symbol `freea'
collect2.exe: error: ld returned 1 exit status
make[1]: *** [Makefile:651: temacs.exe] Fehler 1
make[1]: Verzeichnis „/c/emacs/trunk/non-64/src“ wird verlassen
make: *** [Makefile:424: src] Fehler 2

martin