From 393095c1c69de922530871f74869433327b247b6 Mon Sep 17 00:00:00 2001
From: Florian Walch <florian@fwalch.com>
Date: Thu, 11 Feb 2021 18:37:41 +0100
Subject: [PATCH] cmake: Remove duplicate compile flags argument (#13920)

${C_FLAGS_ARRAY} is already part of ${gen_cflags} and does not
need to be passed explicitly.

Passing it a second time leads to macro redefinition warnings when
-D_FORTIFY_SOURCE=2 is given as part of CFLAGS because Neovim
enforces -D_FORTIFY_SOURCE=1.
---
 src/nvim/CMakeLists.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/nvim/CMakeLists.txt b/src/nvim/CMakeLists.txt
index db77931c16..1a1a178620 100644
--- a/src/nvim/CMakeLists.txt
+++ b/src/nvim/CMakeLists.txt
@@ -284,7 +284,7 @@ foreach(sfile ${NVIM_SOURCES}
   endif()
   add_custom_command(
     OUTPUT "${gf_c_h}" "${gf_h_h}"
-    COMMAND ${CMAKE_C_COMPILER} ${sfile} ${PREPROC_OUTPUT} ${gen_cflags} ${C_FLAGS_ARRAY}
+    COMMAND ${CMAKE_C_COMPILER} ${sfile} ${PREPROC_OUTPUT} ${gen_cflags}
     COMMAND "${LUA_PRG}" "${HEADER_GENERATOR}" "${sfile}" "${gf_c_h}" "${gf_h_h}" "${gf_i}"
     DEPENDS ${depends})
   list(APPEND NVIM_GENERATED_FOR_SOURCES "${gf_c_h}")