doxygen: make sure the right C source files are included
diff --git a/Doxyfile b/Doxyfile
index 6e38656..02c8826 100644
--- a/Doxyfile
+++ b/Doxyfile
@@ -610,7 +610,7 @@
# directories like "/usr/src/myproject". Separate the files or directories
# with spaces.
-INPUT = include/osmocom/core src/*.c
+INPUT = include/osmocom/core src
# This tag can be used to specify the character encoding of the source files
# that doxygen parses. Internally doxygen uses the UTF-8 encoding, which is
@@ -634,7 +634,7 @@
# should be searched for input files as well. Possible values are YES and NO.
# If left blank NO is used.
-RECURSIVE = YES
+RECURSIVE = NO
# The EXCLUDE tag can be used to specify files and/or directories that should
# excluded from the INPUT source files. This way you can easily exclude a