Fix from Manuel for a silly thinko on my part.
diff --git a/archival/dpkg.c b/archival/dpkg.c
index e0fd8a3..4720a88 100644
--- a/archival/dpkg.c
+++ b/archival/dpkg.c
@@ -14,8 +14,8 @@
/* Stupid libc doesn't have a reliable way for use to know
* that libc5 is being used. Assume this is good enough */
-#if defined __GLIBC__ || defined __UCLIBC__
-#error It looks like you are using libc5, which doesn't support
+#if !defined __GLIBC__ || !defined __UCLIBC__
+#error It looks like you are using libc5, which does not support
#error tfind(). tfind() is used by busybox dpkg.
#error Please disable BB_DPKG. Sorry.
#endif
diff --git a/dpkg.c b/dpkg.c
index e0fd8a3..4720a88 100644
--- a/dpkg.c
+++ b/dpkg.c
@@ -14,8 +14,8 @@
/* Stupid libc doesn't have a reliable way for use to know
* that libc5 is being used. Assume this is good enough */
-#if defined __GLIBC__ || defined __UCLIBC__
-#error It looks like you are using libc5, which doesn't support
+#if !defined __GLIBC__ || !defined __UCLIBC__
+#error It looks like you are using libc5, which does not support
#error tfind(). tfind() is used by busybox dpkg.
#error Please disable BB_DPKG. Sorry.
#endif