Add a compile time option to restrict file names to the Portable File…

…name Character Set. Issue marbl#1153.

src/Makefile

@@ -363,6 +363,18 @@ ifeq (${OSTYPE}, SunOS)
   endif
 endif
 
+#  Some filesystems cannot use < or > in file names, but for reasons unknown
+#  (or, at least, reasons we're not going to admit to), files in the overlap
+#  store are named ####<###>.  Enabling POSIX_FILE_NAMES Will change the
+#  names to ####.###.
+#
+#  Be aware this will break object store compatibility.
+#
+ifeq ($(POSIX_FILE_NAMES), 1)
+  CXXFLAGS += -DPOSIX_FILE_NAMES
+endif
+
+
 #  Set compiler and flags based on discovered hardware
 #
 #  By default, debug symbols are included in all builds (even optimized).

src/stores/ovStoreFile.C

@@ -57,7 +57,18 @@ ovFile::createDataName(char       *name,
                        uint32      sliceNum,
                        uint32      pieceNum) {
 
+  //  Sigh.
+  //
+  //  POSIX.1-2008 defines the Portable Filename Character Set as just
+  //      A-Z  a-z  0-9  .  _  -
+  //  which makes for very boring filenames.  But, lo!  There ARE filesystems
+  //  that require the Portable Filename Character Set.
+
+#ifdef POSIX_FILE_NAMES
+  snprintf(name, FILENAME_MAX, "%s/%04u.%03u", storeName, sliceNum, pieceNum);
+#else
   snprintf(name, FILENAME_MAX, "%s/%04u<%03u>", storeName, sliceNum, pieceNum);
+#endif
 
   return(name);
 }