From bad6658fd8b8af69a2959cda46b1639d39259004 Mon Sep 17 00:00:00 2001
From: Peter Hill <zed.three@gmail.com>
Date: Fri, 2 Oct 2020 17:30:35 +0100
Subject: [PATCH] Fix invalid target name

Colons are not valid characters in target names, see
https://cmake.org/cmake/help/latest/policy/CMP0037.html
---
 CMakeLists.txt | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 0025e29..ff3706f 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -55,15 +55,9 @@ if((main_project OR BUILD_TESTING_${PROJECT_NAME}) AND BUILD_TESTING)
 endif()
 
 # documentation
-if(main_project)
-    set(doc doc)
-else()
-    set(doc ${NAMESPACE}doc)
-endif()
-
 find_package(Doxygen QUIET)
 if(Doxygen_FOUND)
-    add_custom_target(${doc}
+    add_custom_target(doc
         COMMAND ${CMAKE_COMMAND} -E make_directory "${CMAKE_CURRENT_BINARY_DIR}/doc"
         COMMAND ${DOXYGEN_EXECUTABLE} "${CMAKE_CURRENT_SOURCE_DIR}/doc/doxygen_conf"
         DEPENDS ${DOXYGEN_EXECUTABLE} "${CMAKE_CURRENT_SOURCE_DIR}/doc/doxygen_conf"