From 7ae4fd04cff50c4eeefd99a223ed33652f27d2f3 Mon Sep 17 00:00:00 2001
From: Matthias Maier <maier@tamu.edu>
Date: Thu, 22 Jun 2023 02:00:32 -0500
Subject: [PATCH] CMake: Update -Wno-misleading-indentation for CGAL

---
 source/cgal/CMakeLists.txt | 12 ++++++++++++
 source/grid/CMakeLists.txt |  5 +++--
 2 files changed, 15 insertions(+), 2 deletions(-)

diff --git a/source/cgal/CMakeLists.txt b/source/cgal/CMakeLists.txt
index 08ea4ad6d6..da37863c32 100644
--- a/source/cgal/CMakeLists.txt
+++ b/source/cgal/CMakeLists.txt
@@ -13,6 +13,18 @@
 ##
 ## ---------------------------------------------------------------------
 
+#
+# We have to compile the "intersections.cc" file without the misleading
+# indentation warning enabled. Otherwise, we run into quite a number of
+# warnings with gcc, see https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89549
+#
+if(DEAL_II_WITH_CGAL)
+  enable_if_supported(_flag "-Wno-misleading-indentation")
+  set_property(SOURCE "intersections.cc"
+    APPEND PROPERTY COMPILE_OPTIONS "${_flag}"
+    )
+endif()
+
 set(_src
   surface_mesh.cc
   intersections.cc
diff --git a/source/grid/CMakeLists.txt b/source/grid/CMakeLists.txt
index ff55216403..6cd29b439f 100644
--- a/source/grid/CMakeLists.txt
+++ b/source/grid/CMakeLists.txt
@@ -21,11 +21,12 @@
 # due to a longstanding bug in gcc. Thus, simply set
 # -Wno-misleading-indentation on the command line for the
 # grid_generator_cgal.cc compilation unit.
+# See https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89549
 #
 if(DEAL_II_WITH_CGAL)
   enable_if_supported(_flag "-Wno-misleading-indentation")
-  set_property(SOURCE "grid_generator_cgal.cc"
-    APPEND_STRING PROPERTY COMPILE_FLAGS " ${_flag}"
+  set_property(SOURCE "grid_generator_cgal.cc" "grid_tools.cc"
+    APPEND PROPERTY COMPILE_OPTIONS "${_flag}"
     )
 endif()
 
-- 
2.39.5