From 47db7a737060045f837408ae69736cc58dd4449c Mon Sep 17 00:00:00 2001
From: Christopher Haster <chaster@utexas.edu>
Date: Sun, 16 Jul 2017 12:42:17 -0500
Subject: [PATCH] Added sanity check for compiling example

---
 .travis.yml | 10 ++++++++++
 README.md   |  4 +++-
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/.travis.yml b/.travis.yml
index 0936b29..00f5665 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,4 +1,14 @@
 script:
+    # make sure example can at least compile
+    - sed -n '/``` c/,/```/{/```/d; p;}' README.md > test.c &&
+      CFLAGS='
+        -Duser_provided_block_device_read=NULL
+        -Duser_provided_block_device_prog=NULL
+        -Duser_provided_block_device_erase=NULL
+        -Duser_provided_block_device_sync=NULL
+        -include stdio.h -Werror' make
+
+    # run tests
     - CFLAGS="-DLFS_READ_SIZE=16  -DLFS_PROG_SIZE=16"  make test
     - CFLAGS="-DLFS_READ_SIZE=1   -DLFS_PROG_SIZE=1"   make test
     - CFLAGS="-DLFS_READ_SIZE=512 -DLFS_PROG_SIZE=512" make test
diff --git a/README.md b/README.md
index 0ae1cc6..e9e63b3 100644
--- a/README.md
+++ b/README.md
@@ -77,7 +77,6 @@ int main(void) {
 
     // update boot count
     boot_count += 1;
-    printf("boot_count: %ld\n", boot_count);
     lfs_file_rewind(&lfs, &file);
     lfs_file_write(&lfs, &file, &boot_count, sizeof(boot_count));
 
@@ -86,6 +85,9 @@ int main(void) {
 
     // release any resources we were using
     lfs_unmount(&lfs);
+
+    // print the boot count
+    printf("boot_count: %d\n", boot_count);
 }
 ```