--- a/IGC/CMakeLists.txt
+++ b/IGC/CMakeLists.txt
@@ -562,7 +562,6 @@
       GROUP NAME Exceptions         "-f(no-)?exceptions"
       GROUP NAME Optimization       "-O[0-3sg]?"
       GROUP NAME Rtti               "-f(no-)?rtti"
-      GROUP NAME TreatWarnAsError   "-Werror"
 
       ALIAS AdditionalOptions
       ALIAS CallingConvCdecl
@@ -591,7 +590,6 @@
       ALIAS RttiDisabled               "-fno-rtti"
       ALIAS RttiEnabled                "-frtti"
       ALIAS TreatWarnAsErrorDisabled   TreatWarnAsError REMOVE_GROUP
-      ALIAS TreatWarnAsErrorEnabled    "-Werror"
       ALIAS UnreferencedVariable
       ALIAS UninitializedVarWarning
       ALIAS WholeProgramOptimization
@@ -620,7 +618,6 @@
       GROUP NAME Exceptions         "-f(no-)?exceptions"
       GROUP NAME Optimization       "-O([0-3]?|fast|s|z)?"
       GROUP NAME Rtti               "-f(no-)?rtti"
-      GROUP NAME TreatWarnAsError   "-Werror"
 
       ALIAS AdditionalOptions
       ALIAS CallingConvCdecl
@@ -649,7 +646,6 @@
       ALIAS RttiDisabled               "-fno-rtti"
       ALIAS RttiEnabled                Rtti REMOVE_GROUP
       ALIAS TreatWarnAsErrorDisabled   TreatWarnAsError REMOVE_GROUP
-      ALIAS TreatWarnAsErrorEnabled    "-Werror"
       ALIAS UnreferencedVariable
       ALIAS UninitializedVarWarning
       ALIAS WholeProgramOptimization
@@ -866,7 +862,6 @@
           -mstackrealign
           -fms-extensions
           -fvisibility=hidden
-          -Werror
           -Wno-unused-parameter
           -Wno-missing-field-initializers
           -Wwrite-strings
@@ -926,7 +921,6 @@
             #-march=armv8.2-a+fp+simd+sve2
             -march=armv8-a+fp+simd
             -fms-extensions
-            -Werror
             -Wno-unused-parameter
             -Wno-missing-field-initializers
             -Wwrite-strings
@@ -958,7 +952,6 @@
             -fmessage-length=0
             -march=rv64gc
             -fms-extensions
-            -Werror
             -Wno-unused-parameter
             -Wno-missing-field-initializers
             -Wwrite-strings
@@ -991,7 +984,6 @@
             -march=corei7
             -mstackrealign
             -fms-extensions
-            -Werror
             -Wno-unused-parameter
             -Wno-missing-field-initializers
             -Wwrite-strings