[jdk13u-dev] RFR: 8249255: Build fails if source code in cygwin home dir

[Ekaterina Vergizova]

I would like to backport 8249255 to 13u, it's already included into 11u.
The patch doesn't apply cleanly, because 8239708 is not backported to 13u.
- the patch should be applied to make/autoconf/basics.m4 instead of make/autoconf/basic.m4
- BASIC_FIXUP_PATH should be used instead of UTIL_FIXUP_PATH from the original patch

Testing: jdk13u-dev placed in cygwin home is built successfully after applying the patch.

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Commit messages:
 - Backport a9b7ae8ac20b6d4bec36f91a40c749c757c887af

Changes: https://git.openjdk.java.net/jdk13u-dev/pull/10/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk13u-dev&pr=10&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8249255
  Stats: 9 lines in 1 file changed: 5 ins; 4 del; 0 mod
  Patch: https://git.openjdk.java.net/jdk13u-dev/pull/10.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk13u-dev pull/10/head:pull/10

PR: https://git.openjdk.java.net/jdk13u-dev/pull/10