change version.cmake to check all tags

Fix issue iovisor#2666

Currently, in master where latest tag is v0.12.0,
the build still says is it v0.11.0.

  [ben@centos bcc]$ cd build/
  [ben@centos build]$ cmake .. -DCMAKE_INSTALL_PREFIX=/usr
  -- Latest recognized Git tag is v0.11.0

The reason is the git_describe by default only checks
annotated tag while tag v0.12.0 is tagged through
github release process which just tags whatever the
top of the master.

Making git_describe to check all tags fixed the issue.

Signed-off-by: Yonghong Song <[email protected]>

Author: yonghong-song

cmake/version.cmake

@@ -4,7 +4,7 @@ if(NOT REVISION)
   get_git_head_revision(GIT_REFSPEC GIT_SHA1)
   string(SUBSTRING "${GIT_SHA1}" 0 8 GIT_SHA1_SHORT)
   git_describe(GIT_DESCRIPTION)
-  git_describe(GIT_TAG_LAST "--abbrev=0")
+  git_describe(GIT_TAG_LAST "--abbrev=0" "--tags")
   git_get_exact_tag(GIT_TAG_EXACT)
   string(SUBSTRING "${GIT_TAG_LAST}-${GIT_SHA1_SHORT}" 1 -1 REVISION)
   if(GIT_TAG_EXACT)