--- a/src/Makefile.in
+++ b/src/Makefile.in
@@ -321,7 +321,7 @@ INCLUDES = -I. -I$(srcdir) -I$(top_srcdi
 	-I$(srcdir)/../libdw -I$(srcdir)/../libdwfl \
 	-I$(srcdir)/../libasm
 AM_CFLAGS = -std=gnu99 -Wall -Wshadow $(if \
-	$($(*F)_no_Werror),,-Werror) $(if \
+	$($(*F)_no_Werror),,) $(if \
 	$($(*F)_no_Wunused),,-Wunused $(WEXTRA)) $(if \
 	$($(*F)_no_Wformat),-Wno-format,-Wformat=2) $($(*F)_CFLAGS) \
 	$(am__append_1)
--- a/libelf/Makefile.in
+++ b/libelf/Makefile.in
@@ -279,7 +279,7 @@ top_srcdir = @top_srcdir@
 zip_LIBS = @zip_LIBS@
 INCLUDES = -I. -I$(srcdir) -I$(top_srcdir)/lib -I..
 AM_CFLAGS = -std=gnu99 -Wall -Wshadow $(if \
-	$($(*F)_no_Werror),,-Werror) $(if \
+	$($(*F)_no_Werror),,) $(if \
 	$($(*F)_no_Wunused),,-Wunused $(WEXTRA)) $(if \
 	$($(*F)_no_Wformat),-Wno-format,-Wformat=2) $($(*F)_CFLAGS) \
 	$(am__append_1) $(am__append_2)