From c9c152baba1fbd6e2b061b16a5c987a80309caee Mon Sep 17 00:00:00 2001
From: Jakov Smolic <jakov.smolic@sartura.hr>
Date: Tue, 26 May 2020 16:35:16 +0200
Subject: [PATCH] CMakeLists: add the option to disable Werror

https://github.com/warmcat/libwebsockets/pull/1926

Signed-off-by: Jakov Smolic <jakov.smolic@sartura.hr>
---
 CMakeLists.txt | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index e817c378d..f95243186 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -66,6 +66,11 @@ include(CTest)
 option(LWS_WITH_DISTRO_RECOMMENDED "Enable features recommended for distro packaging" OFF)
 option(LWS_FOR_GITOHASHI "Enable features recommended for use with gitohashi" OFF)
 
+#
+# Compiler features
+#
+option(DISABLE_WERROR "Avoid treating compiler warnings as fatal errors" OFF)
+
 #
 # Major individual features
 #
@@ -637,12 +642,15 @@ if (CMAKE_COMPILER_IS_GNUCC OR CMAKE_COMPILER_IS_GNUCXX OR COMPILER_IS_CLANG)
 		set(CMAKE_C_FLAGS "-fanalyzer ${CMAKE_C_FLAGS}" )
 	endif()
 
-	# always warn all and Werror, and generate debug info
+	# always warn all and generate debug info
     if (UNIX AND NOT LWS_PLAT_FREERTOS)
-	    set(CMAKE_C_FLAGS "-g -Wall -Wsign-compare -Wstrict-aliasing -Wuninitialized -Werror ${VISIBILITY_FLAG} -Wundef ${GCOV_FLAGS} ${CMAKE_C_FLAGS} ${ASAN_FLAGS}" )
+	    set(CMAKE_C_FLAGS "-g -Wall -Wsign-compare -Wstrict-aliasing -Wuninitialized ${VISIBILITY_FLAG} -Wundef ${GCOV_FLAGS} ${CMAKE_C_FLAGS} ${ASAN_FLAGS}" )
     else()
-	    set(CMAKE_C_FLAGS "-g -Wall -Wsign-compare -Wuninitialized -Werror ${VISIBILITY_FLAG} ${GCOV_FLAGS} ${CMAKE_C_FLAGS}" )
+	    set(CMAKE_C_FLAGS "-g -Wall -Wsign-compare -Wuninitialized ${VISIBILITY_FLAG} ${GCOV_FLAGS} ${CMAKE_C_FLAGS}" )
     endif()
+	    if ("${DISABLE_WERROR}" STREQUAL "OFF")
+		    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Werror")
+	    endif()
 endif ()