INSTALL.W32: document trouble with symlinks under MSYS [from HEAD].

PR: 2377

diff --git a/INSTALL.W32 b/INSTALL.W32
index a0886b3d77499e9757e50b6952e61f5613ebd7cf..d23c4baf625e783bda70830629d019cb835b66a9 100644 (file)
--- a/INSTALL.W32
+++ b/INSTALL.W32
@@ -185,6 +185,15 @@
    required. Run the installers and do whatever magic they say it takes
    to start MSYS bash shell with GNU tools on its PATH.
 
+   N.B. Since source tar-ball can contain symbolic links, it's essential
+   that you use accompanying MSYS tar to unpack the source. It will
+   either handle them in one way or another or fail to extract them,
+   which does the trick too. Latter means that you may safely ignore all
+   "cannot create symlink" messages, as they will be "re-created" at
+   configure stage by copying corresponding files. Alternative programs
+   were observed to create empty files instead, which results in build
+   failure.
+
  * Compile OpenSSL:
 
    $ ./config