diff --git a/README.txt b/README.txt
index 571f8e04eb9..da1ed10c6a6 100644
--- a/README.txt
+++ b/README.txt
@@ -533,6 +533,12 @@ NuttX Buildroot Toolchain
   an ARM Cortex-M3/4, you will need to set CONFIG_ARMV7M_OABI_TOOLCHAIN
   in the .config file in order to pick the right tool prefix.
 
+  If the make system ever picks the wrong prefix for your toolchain, you
+  can always specify the prefix on the command to override the default
+  like:
+
+    make CROSSDEV=arm-nuttx-elf
+
 SHELLS
 ^^^^^^
 
diff --git a/libc/stdio/lib_fgets.c b/libc/stdio/lib_fgets.c
index 35d024ebb0b..87eed285d12 100644
--- a/libc/stdio/lib_fgets.c
+++ b/libc/stdio/lib_fgets.c
@@ -150,7 +150,7 @@ char *fgets(FAR char *buf, int buflen, FILE *stream)
       if (ch == '\n')
 #elif defined(CONFIG_EOL_IS_CR)
       if (ch == '\r')
-#else /* elif CONFIG_EOL_IS_EITHER_CRLF */
+#else /* elif defined(CONFIG_EOL_IS_EITHER_CRLF) */
       if (ch == '\n' || ch == '\r')
 #endif
         {