build: Only try to read the VERSION file if it exists

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 8b5214435e1866f92e37295b11a7b888d99818bc..800ffe27fec0aea78c3d4cd20b9f9bae4d1be06c 100644 (file)
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -126,7 +126,7 @@ set(PV_VERSION_STRING "0.3.0")
 include(GetGitRevisionDescription)
 git_describe(PV_TAG_VERSION_STRING --tags --dirty)
 
-if(NOT PV_TAG_VERSION_STRING)
+if(NOT PV_TAG_VERSION_STRING AND EXISTS "${PROJECT_SOURCE_DIR}/VERSION")
        # Read the version from a file that is distributed with
        # the source package (see writepackageversion.cmake).
        file(STRINGS "${PROJECT_SOURCE_DIR}/VERSION" PV_TAG_VERSION_STRING LIMIT_COUNT 1)