bug#62896: [Configure] Bug with check for PERL when path has spaces (i.e. Windows)

[Dan Rosser]

VER=1.16.4

Building "automake"

checking whether make supports nested variables... no
checking build system type... x86_64-pc-mingw64
checking host system type... x86_64-pc-mingw64
checking for a BSD-compatible install... ./lib/install-sh -c
checking whether build environment is sane... yes
checking for a race-free mkdir -p... /c/Program Files/Git/usr/bin/mkdir -p
checking for gawk... gawk
checking whether make sets $(MAKE)... no
checking whether ln -s works... no, using cp -pR
checking for perl... /c/Program Files/Git/usr/bin/perl
./configure: line 3475: /c/Program: No such file or directory
configure: error: perl 5.6 or better is required; perl 5.8.2 or better
is recommended.  If you have several perl versions
installed, select the one Automake should use using
  ./configure PERL=/path/to/perl