diff --git a/core/org.eclipse.cdt.core.native/native_src/Makefile b/core/org.eclipse.cdt.core.native/native_src/Makefile
index dcd644faced..914324a201b 100644
--- a/core/org.eclipse.cdt.core.native/native_src/Makefile
+++ b/core/org.eclipse.cdt.core.native/native_src/Makefile
@@ -26,7 +26,7 @@ OS_DIR_LINUX_PPC64LE := ../../org.eclipse.cdt.core.linux.ppc64le/os/linux/ppc64l
 OS_DIR_MACOS_X86_64 := ../../org.eclipse.cdt.core.macosx/os/macosx/x86_64
 OS_DIR_MACOS_X86 := ../../org.eclipse.cdt.core.macosx/os/macosx/x86
 
-COMMON_CFLAGS :=  -Wall -pedantic
+COMMON_CFLAGS :=  -Wall -pedantic -Werror
 
 UNAME = $(shell uname)
 ifeq ($(UNAME),Linux)
diff --git a/core/org.eclipse.cdt.core.win32.x86_64/os/win32/x86_64/pty.dll b/core/org.eclipse.cdt.core.win32.x86_64/os/win32/x86_64/pty.dll
index 77bcd08ed48..2dc4174a57d 100755
Binary files a/core/org.eclipse.cdt.core.win32.x86_64/os/win32/x86_64/pty.dll and b/core/org.eclipse.cdt.core.win32.x86_64/os/win32/x86_64/pty.dll differ
diff --git a/core/org.eclipse.cdt.core.win32.x86_64/os/win32/x86_64/spawner.dll b/core/org.eclipse.cdt.core.win32.x86_64/os/win32/x86_64/spawner.dll
index a6c64e1ac1d..df14caadec9 100755
Binary files a/core/org.eclipse.cdt.core.win32.x86_64/os/win32/x86_64/spawner.dll and b/core/org.eclipse.cdt.core.win32.x86_64/os/win32/x86_64/spawner.dll differ
diff --git a/core/org.eclipse.cdt.core.win32.x86_64/os/win32/x86_64/starter.exe b/core/org.eclipse.cdt.core.win32.x86_64/os/win32/x86_64/starter.exe
index a9402afee59..919062dbd93 100755
Binary files a/core/org.eclipse.cdt.core.win32.x86_64/os/win32/x86_64/starter.exe and b/core/org.eclipse.cdt.core.win32.x86_64/os/win32/x86_64/starter.exe differ
diff --git a/native/org.eclipse.cdt.native.serial/native_src/Makefile b/native/org.eclipse.cdt.native.serial/native_src/Makefile
index e3cbc23cb05..27d62fe8c56 100644
--- a/native/org.eclipse.cdt.native.serial/native_src/Makefile
+++ b/native/org.eclipse.cdt.native.serial/native_src/Makefile
@@ -22,7 +22,7 @@ REPRODUCIBLE_BUILD_WRAPPER := $(shell git rev-parse --show-toplevel)/releng/scri
 OS_DIR = ../os
 
 CFLAGS += -fPIC -D_REENTRANT
-COMMON_CFLAGS := -Wall -pedantic
+COMMON_CFLAGS := -Wall -pedantic -Werror
 
 UNAME = $(shell uname)
 ifeq ($(UNAME),Linux)
diff --git a/native/org.eclipse.cdt.native.serial/os/win32/x86_64/serial.dll b/native/org.eclipse.cdt.native.serial/os/win32/x86_64/serial.dll
index 5a68572e0c9..c4cc3e47a28 100755
Binary files a/native/org.eclipse.cdt.native.serial/os/win32/x86_64/serial.dll and b/native/org.eclipse.cdt.native.serial/os/win32/x86_64/serial.dll differ