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-rw-r--r--src/H5config.h.in3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/H5config.h.in b/src/H5config.h.in
index ea14802..ded57d6 100644
--- a/src/H5config.h.in
+++ b/src/H5config.h.in
@@ -349,7 +349,8 @@
/* Define if `__tm_gmtoff' is a member of `struct tm' */
#undef HAVE___TM_GMTOFF
-/* Define if your system has a working `malloc' function. */
+/* Define if your system's `malloc' function returns a valid pointer for
+ 0-byte allocations. */
#undef MALLOC_WORKS
/* Define if your system's `MPI_File_set_size' function works for files over