Use 3-arg form of AC_DEFINE.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8974 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/autoconf/aclocal.m4 b/autoconf/aclocal.m4
index 8f64b5b6710b7ef50aa1c7583e8336f600835623..51040fb523942c26e587cc470f04c64af6ba781e 100644 (file)
--- a/autoconf/aclocal.m4
+++ b/autoconf/aclocal.m4
@@ -6130,7 +6130,7 @@ ac_cv_func_mmap_file,
   AC_LANG_RESTORE
 ])
 if test "$ac_cv_func_mmap_file" = yes; then
-   AC_DEFINE(HAVE_MMAP_FILE)
+   AC_DEFINE([HAVE_MMAP_FILE],[],[Define if mmap() can map files into memory])
    AC_SUBST(MMAP_FILE,[yes])
 fi
 ])
@@ -6152,7 +6152,7 @@ ac_cv_header_mmap_anon,
   AC_LANG_RESTORE
 ])
 if test "$ac_cv_header_mmap_anon" = yes; then
-   AC_DEFINE(HAVE_MMAP_ANONYMOUS)
+   AC_DEFINE([HAVE_MMAP_ANONYMOUS],[],[Define if mmap() uses MAP_ANONYMOUS to map anonymous pages, or undefine if it uses MAP_ANON])
 fi
 ])