diff --git a/ChangeLog b/ChangeLog
index d942152b6..2a7b0a49c 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2003-05-24  David Shaw  <dshaw@jabberwocky.com>
+
+	* configure.ac: Edit preprocessor instructions in g10defs.h to
+	remove whitespace before the '#'.  This is not required by C89,
+	but there are some compilers out there that don't like it.
+
 2003-05-11  David Shaw  <dshaw@jabberwocky.com>
 
 	* configure.ac: Remove some stuff no longer needed with newer
diff --git a/configure.ac b/configure.ac
index f650f17dc..1760544f8 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1075,20 +1075,20 @@ AC_CONFIG_COMMANDS(g10defs.h,[[
 cat >g10defs.tmp <<G10EOF
 /* Generated automatically by configure */
 #ifdef HAVE_DRIVE_LETTERS
-  #define G10_LOCALEDIR     "c:\\\\lib\\\\gnupg\\\\locale"
-  #define GNUPG_LIBDIR      "c:\\\\lib\\\\gnupg"
-  #define GNUPG_LIBEXECDIR  "c:\\\\lib\\\\gnupg"
-  #define GNUPG_DATADIR     "c:\\\\lib\\\\gnupg"
-  #define GNUPG_HOMEDIR     "c:\\\\gnupg"
+#define G10_LOCALEDIR     "c:\\\\lib\\\\gnupg\\\\locale"
+#define GNUPG_LIBDIR      "c:\\\\lib\\\\gnupg"
+#define GNUPG_LIBEXECDIR  "c:\\\\lib\\\\gnupg"
+#define GNUPG_DATADIR     "c:\\\\lib\\\\gnupg"
+#define GNUPG_HOMEDIR     "c:\\\\gnupg"
 #else
-  #define G10_LOCALEDIR     "${datadir}/locale"
-  #define GNUPG_LIBDIR      "${libdir}/gnupg"
-  #define GNUPG_DATADIR     "${datadir}/gnupg"
-  #ifdef __VMS
-    #define GNUPG_HOMEDIR "/SYS\$LOGIN/gnupg" 
-  #else
-    #define GNUPG_HOMEDIR "~/.gnupg" 
-  #endif
+#define G10_LOCALEDIR     "${datadir}/locale"
+#define GNUPG_LIBDIR      "${libdir}/gnupg"
+#define GNUPG_DATADIR     "${datadir}/gnupg"
+#ifdef __VMS
+#define GNUPG_HOMEDIR "/SYS\$LOGIN/gnupg" 
+#else
+#define GNUPG_HOMEDIR "~/.gnupg" 
+#endif
 #endif
 /* those are here to be redefined by handcrafted g10defs.h.
    Please note that the string version must not contain more