Don't specify SOURCE in custom targets

They don't really contribute to anything as the command line is fixed,
and it makes CMake 3.20+ upset since it cannot find that file and
instead thinks we meant maketarball.in (CMP0115).

diff --git a/release/CMakeLists.txt b/release/CMakeLists.txt
index 9bf0816ea4bb5a7e56fdeceb39cb835f48376509..86f167f533bcdd11ced2c75647de81182d81e3ae 100644 (file)
--- a/release/CMakeLists.txt
+++ b/release/CMakeLists.txt
@@ -70,12 +70,10 @@ if(BUILD_JAVA)
 endif()
 
 add_custom_target(tarball bash maketarball
-  DEPENDS ${TARBALL_DEPENDS}
-  SOURCES maketarball)
+  DEPENDS ${TARBALL_DEPENDS})
 
 add_custom_target(servertarball bash maketarball server
-  DEPENDS ${TARBALL_DEPENDS}
-  SOURCES maketarball)
+  DEPENDS ${TARBALL_DEPENDS})
 
 endif() #UNIX