Ignore all build and obj* directores

Signed-off-by: Andreas Schneider <asn@cryptomilk.org>
diff --git a/.gitignore b/.gitignore
index ec23b9b..3944fce 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,7 +1,7 @@
 *.swp
 *~$
-build
-obj*
 tags
 cscope.*
 .ycm_extra_conf.pyc
+/build
+/obj*
diff --git a/CPackConfig.cmake b/CPackConfig.cmake
index 5666c5a..574c8e5 100644
--- a/CPackConfig.cmake
+++ b/CPackConfig.cmake
@@ -19,7 +19,7 @@
 
 ### source generator
 set(CPACK_SOURCE_GENERATOR "TGZ")
-set(CPACK_SOURCE_IGNORE_FILES "~$;[.]swp$;/[.]svn/;/[.]git/;.gitignore;obj*;tags;cscope.*;.ycm_extra_conf.pyc")
+set(CPACK_SOURCE_IGNORE_FILES "~$;[.]swp$;/[.]svn/;/[.]git/;.gitignore;/obj*/;tags;cscope.*;.ycm_extra_conf.pyc")
 set(CPACK_SOURCE_PACKAGE_FILE_NAME "${CPACK_PACKAGE_NAME}-${CPACK_PACKAGE_VERSION}")
 
 if (WIN32)