diff --git a/lib/libavl/Makefile.am b/lib/libavl/Makefile.am
index 3166febd02c5..3902190d1add 100644
--- a/lib/libavl/Makefile.am
+++ b/lib/libavl/Makefile.am
@@ -5,6 +5,8 @@ VPATH = $(top_srcdir)/module/avl/
 # Includes kernel code, generate warnings for large stack frames
 AM_CFLAGS += $(FRAME_LARGER_THAN)
 AM_CFLAGS += -fvisibility=hidden
+# See https://debbugs.gnu.org/cgi/bugreport.cgi?bug=54020
+AM_CFLAGS += -no-suppress
 
 noinst_LTLIBRARIES = libavl.la
 
diff --git a/lib/libefi/Makefile.am b/lib/libefi/Makefile.am
index 580319a31495..f42b9d1a7625 100644
--- a/lib/libefi/Makefile.am
+++ b/lib/libefi/Makefile.am
@@ -2,6 +2,8 @@ include $(top_srcdir)/config/Rules.am
 
 AM_CFLAGS += $(LIBUUID_CFLAGS) $(ZLIB_CFLAGS)
 AM_CFLAGS += -fvisibility=hidden
+# See https://debbugs.gnu.org/cgi/bugreport.cgi?bug=54020
+AM_CFLAGS += -no-suppress
 
 noinst_LTLIBRARIES = libefi.la
 
diff --git a/lib/libicp/Makefile.am b/lib/libicp/Makefile.am
index 382253f6fa48..d81205fd27e6 100644
--- a/lib/libicp/Makefile.am
+++ b/lib/libicp/Makefile.am
@@ -6,6 +6,8 @@ VPATH = \
 
 # Includes kernel code, generate warnings for large stack frames
 AM_CFLAGS += $(FRAME_LARGER_THAN)
+# See https://debbugs.gnu.org/cgi/bugreport.cgi?bug=54020
+AM_CFLAGS += -no-suppress
 
 noinst_LTLIBRARIES = libicp.la
 
diff --git a/lib/libnvpair/Makefile.am b/lib/libnvpair/Makefile.am
index 9a71a2ea6198..021859e148a8 100644
--- a/lib/libnvpair/Makefile.am
+++ b/lib/libnvpair/Makefile.am
@@ -8,6 +8,8 @@ VPATH = \
 # and required CFLAGS for libtirpc
 AM_CFLAGS += $(FRAME_LARGER_THAN) $(LIBTIRPC_CFLAGS)
 AM_CFLAGS += -fvisibility=hidden
+# See https://debbugs.gnu.org/cgi/bugreport.cgi?bug=54020
+AM_CFLAGS += -no-suppress
 
 # wchar_t is undefined-signedness, but we compare to >=0; this warns with unsigned wchar_t
 libnvpair_json.$(OBJEXT): CFLAGS += -Wno-type-limits
diff --git a/lib/libshare/Makefile.am b/lib/libshare/Makefile.am
index dff3e5382d6e..1527c70ba106 100644
--- a/lib/libshare/Makefile.am
+++ b/lib/libshare/Makefile.am
@@ -3,6 +3,8 @@ include $(top_srcdir)/config/Rules.am
 DEFAULT_INCLUDES += -I$(srcdir)
 
 AM_CFLAGS += -fvisibility=hidden
+# See https://debbugs.gnu.org/cgi/bugreport.cgi?bug=54020
+AM_CFLAGS += -no-suppress
 
 noinst_LTLIBRARIES = libshare.la
 
diff --git a/lib/libspl/Makefile.am b/lib/libspl/Makefile.am
index 8457df6dcdf4..c62554b14f16 100644
--- a/lib/libspl/Makefile.am
+++ b/lib/libspl/Makefile.am
@@ -2,6 +2,9 @@ include $(top_srcdir)/config/Rules.am
 
 SUBDIRS = include
 
+# See https://debbugs.gnu.org/cgi/bugreport.cgi?bug=54020
+AM_CFLAGS += -no-suppress
+
 noinst_LTLIBRARIES = libspl_assert.la libspl.la
 
 libspl_assert_la_SOURCES = \
diff --git a/lib/libtpool/Makefile.am b/lib/libtpool/Makefile.am
index 638d427bdf1c..b66f72eeb43e 100644
--- a/lib/libtpool/Makefile.am
+++ b/lib/libtpool/Makefile.am
@@ -1,9 +1,13 @@
 include $(top_srcdir)/config/Rules.am
 
 AM_CFLAGS += -fvisibility=hidden
+
 # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61118
 AM_CFLAGS += $(NO_CLOBBERED)
 
+# See https://debbugs.gnu.org/cgi/bugreport.cgi?bug=54020
+AM_CFLAGS += -no-suppress
+
 noinst_LTLIBRARIES = libtpool.la
 
 USER_C = \
diff --git a/lib/libunicode/Makefile.am b/lib/libunicode/Makefile.am
index b82975f68efd..5b12b3e916f3 100644
--- a/lib/libunicode/Makefile.am
+++ b/lib/libunicode/Makefile.am
@@ -5,6 +5,9 @@ VPATH = $(top_srcdir)/module/unicode
 # Includes kernel code, generate warnings for large stack frames
 AM_CFLAGS += $(FRAME_LARGER_THAN)
 
+# See https://debbugs.gnu.org/cgi/bugreport.cgi?bug=54020
+AM_CFLAGS += -no-suppress
+
 noinst_LTLIBRARIES = libunicode.la
 
 KERNEL_C = \
diff --git a/lib/libuutil/Makefile.am b/lib/libuutil/Makefile.am
index 5a911f85f7de..6678a90b59f3 100644
--- a/lib/libuutil/Makefile.am
+++ b/lib/libuutil/Makefile.am
@@ -1,5 +1,8 @@
 include $(top_srcdir)/config/Rules.am
 
+# See https://debbugs.gnu.org/cgi/bugreport.cgi?bug=54020
+AM_CFLAGS += -no-suppress
+
 lib_LTLIBRARIES = libuutil.la
 
 include $(top_srcdir)/config/Abigail.am
diff --git a/lib/libzfs/Makefile.am b/lib/libzfs/Makefile.am
index 332094469ccf..14bb7df4d7cf 100644
--- a/lib/libzfs/Makefile.am
+++ b/lib/libzfs/Makefile.am
@@ -8,6 +8,8 @@ VPATH = \
 # Suppress unused but set variable warnings often due to ASSERTs
 AM_CFLAGS += $(LIBCRYPTO_CFLAGS) $(ZLIB_CFLAGS)
 AM_CFLAGS += -fvisibility=hidden
+# See https://debbugs.gnu.org/cgi/bugreport.cgi?bug=54020
+AM_CFLAGS += -no-suppress
 
 pkgconfig_DATA = libzfs.pc
 
diff --git a/lib/libzfs_core/Makefile.am b/lib/libzfs_core/Makefile.am
index 64cb76f1995b..b75ed464a907 100644
--- a/lib/libzfs_core/Makefile.am
+++ b/lib/libzfs_core/Makefile.am
@@ -3,6 +3,8 @@ include $(top_srcdir)/config/Rules.am
 pkgconfig_DATA = libzfs_core.pc
 
 AM_CFLAGS += -fvisibility=hidden
+# See https://debbugs.gnu.org/cgi/bugreport.cgi?bug=54020
+AM_CFLAGS += -no-suppress
 
 lib_LTLIBRARIES = libzfs_core.la
 
diff --git a/lib/libzfsbootenv/Makefile.am b/lib/libzfsbootenv/Makefile.am
index 0c454a5e031b..a9f19ad5bb1d 100644
--- a/lib/libzfsbootenv/Makefile.am
+++ b/lib/libzfsbootenv/Makefile.am
@@ -3,6 +3,8 @@ include $(top_srcdir)/config/Rules.am
 pkgconfig_DATA = libzfsbootenv.pc
 
 AM_CFLAGS += -fvisibility=hidden
+# See https://debbugs.gnu.org/cgi/bugreport.cgi?bug=54020
+AM_CFLAGS += -no-suppress
 
 lib_LTLIBRARIES = libzfsbootenv.la
 
diff --git a/lib/libzpool/Makefile.am b/lib/libzpool/Makefile.am
index e60a906a5cb6..63b36c67703c 100644
--- a/lib/libzpool/Makefile.am
+++ b/lib/libzpool/Makefile.am
@@ -24,6 +24,9 @@ AM_CFLAGS += $(ZLIB_CFLAGS)
 
 AM_CFLAGS += -DLIB_ZPOOL_BUILD
 
+# See https://debbugs.gnu.org/cgi/bugreport.cgi?bug=54020
+AM_CFLAGS += -no-suppress
+
 lib_LTLIBRARIES = libzpool.la
 
 USER_C = \
diff --git a/lib/libzstd/Makefile.am b/lib/libzstd/Makefile.am
index 91b7a366c3b2..e7de3e979fb8 100644
--- a/lib/libzstd/Makefile.am
+++ b/lib/libzstd/Makefile.am
@@ -5,6 +5,8 @@ VPATH = $(top_srcdir)/module/zstd
 # -fno-tree-vectorize is set for gcc in zstd/common/compiler.h
 # Set it for other compilers, too.
 AM_CFLAGS += -fno-tree-vectorize
+# See https://debbugs.gnu.org/cgi/bugreport.cgi?bug=54020
+AM_CFLAGS += -no-suppress
 
 noinst_LTLIBRARIES = libzstd.la
 
diff --git a/lib/libzutil/Makefile.am b/lib/libzutil/Makefile.am
index 4f2dbc62bc0f..5a253c2afbe3 100644
--- a/lib/libzutil/Makefile.am
+++ b/lib/libzutil/Makefile.am
@@ -2,6 +2,8 @@ include $(top_srcdir)/config/Rules.am
 
 AM_CFLAGS += $(LIBBLKID_CFLAGS) $(LIBUDEV_CFLAGS)
 AM_CFLAGS += -fvisibility=hidden
+# See https://debbugs.gnu.org/cgi/bugreport.cgi?bug=54020
+AM_CFLAGS += -no-suppress
 
 DEFAULT_INCLUDES += -I$(srcdir)