Make sure untagged versions get a different package name

Signed-off-by: Steffen Jaeckel <s@jaeckel.eu>

Author: sjaeckel

CMakeLists.txt

@@ -225,6 +225,14 @@ else()
     set(DISTRO_PACK_PATH ${CMAKE_SYSTEM_NAME}/)
 endif()
 
+# make sure untagged versions get a different package name
+execute_process(COMMAND git describe --exact-match --tags RESULT_VARIABLE REPO_HAS_TAG)
+if(REPO_HAS_TAG EQUAL 0)
+    set(PACKAGE_NAME_SUFFIX "")
+else()
+    set(PACKAGE_NAME_SUFFIX "-git")
+endif()
+
 # default CPack generators
 set(CPACK_GENERATOR TGZ STGZ)
 
@@ -245,6 +253,7 @@ if(BUILD_SHARED_LIBS)
 else()
     set(CPACK_PACKAGE_NAME "${PROJECT_NAME}-devel")
 endif()
+set(CPACK_PACKAGE_NAME "${CPACK_PACKAGE_NAME}${PACKAGE_NAME_SUFFIX}")
 set(CPACK_PACKAGE_VERSION ${PROJECT_VERSION})
 set(CPACK_PACKAGE_DESCRIPTION_SUMMARY "LibTomMath")
 set(CPACK_PACKAGE_VENDOR "libtom projects")