diff --git a/cmd/zdb/Makefile.in b/cmd/zdb/Makefile.in
index c53508a80c..7469069157 100644
--- a/cmd/zdb/Makefile.in
+++ b/cmd/zdb/Makefile.in
@@ -200,18 +200,15 @@ target_cpu = @target_cpu@
 target_os = @target_os@
 target_vendor = @target_vendor@
 
-# Default build options
-
 # FIXME: Quiet warnings not covered by the gcc-* patches.  We should
 # FIXME: consider removing this as soon as we reasonably can.
 
 # Expected defines not covered by zfs_config.h or spl_config.h
-AM_CFLAGS = -ggdb -O2 -std=c99 -Wall -Wstrict-prototypes -Wshadow \
-	-Werror -Wno-switch -Wno-unused -Wno-missing-braces \
-	-Wno-unknown-pragmas -Wno-parentheses -Wno-uninitialized \
-	-fno-strict-aliasing -D_GNU_SOURCE -D__EXTENSIONS__ \
-	-D_POSIX_PTHREAD_SEMANTICS -D_FILE_OFFSET_BITS=64 \
-	-D_LARGEFILE64_SOURCE -D_REENTRANT \
+AM_CFLAGS = -Wall -Wstrict-prototypes -Wshadow -Werror -Wno-switch \
+	-Wno-unused -Wno-missing-braces -Wno-unknown-pragmas \
+	-Wno-parentheses -Wno-uninitialized -fno-strict-aliasing \
+	-D_GNU_SOURCE -D__EXTENSIONS__ -D_POSIX_PTHREAD_SEMANTICS \
+	-D_FILE_OFFSET_BITS=64 -D_LARGEFILE64_SOURCE -D_REENTRANT \
 	-DTEXT_DOMAIN=\\\"zfs-linux-user\\\"
 DEFAULT_INCLUDES = -I${top_srcdir}/lib/libspl/include
 zdb_SOURCES = \
diff --git a/cmd/zdump/Makefile.in b/cmd/zdump/Makefile.in
index 915734a5a4..91f1fd9334 100644
--- a/cmd/zdump/Makefile.in
+++ b/cmd/zdump/Makefile.in
@@ -200,18 +200,15 @@ target_cpu = @target_cpu@
 target_os = @target_os@
 target_vendor = @target_vendor@
 
-# Default build options
-
 # FIXME: Quiet warnings not covered by the gcc-* patches.  We should
 # FIXME: consider removing this as soon as we reasonably can.
 
 # Expected defines not covered by zfs_config.h or spl_config.h
-AM_CFLAGS = -ggdb -O2 -std=c99 -Wall -Wstrict-prototypes -Wshadow \
-	-Werror -Wno-switch -Wno-unused -Wno-missing-braces \
-	-Wno-unknown-pragmas -Wno-parentheses -Wno-uninitialized \
-	-fno-strict-aliasing -D_GNU_SOURCE -D__EXTENSIONS__ \
-	-D_POSIX_PTHREAD_SEMANTICS -D_FILE_OFFSET_BITS=64 \
-	-D_LARGEFILE64_SOURCE -D_REENTRANT \
+AM_CFLAGS = -Wall -Wstrict-prototypes -Wshadow -Werror -Wno-switch \
+	-Wno-unused -Wno-missing-braces -Wno-unknown-pragmas \
+	-Wno-parentheses -Wno-uninitialized -fno-strict-aliasing \
+	-D_GNU_SOURCE -D__EXTENSIONS__ -D_POSIX_PTHREAD_SEMANTICS \
+	-D_FILE_OFFSET_BITS=64 -D_LARGEFILE64_SOURCE -D_REENTRANT \
 	-DTEXT_DOMAIN=\\\"zfs-linux-user\\\"
 DEFAULT_INCLUDES = -I${top_srcdir}/lib/libspl/include
 zdump_SOURCES = \
diff --git a/cmd/zfs/Makefile.in b/cmd/zfs/Makefile.in
index 48c935fce4..ece9880a91 100644
--- a/cmd/zfs/Makefile.in
+++ b/cmd/zfs/Makefile.in
@@ -200,18 +200,15 @@ target_cpu = @target_cpu@
 target_os = @target_os@
 target_vendor = @target_vendor@
 
-# Default build options
-
 # FIXME: Quiet warnings not covered by the gcc-* patches.  We should
 # FIXME: consider removing this as soon as we reasonably can.
 
 # Expected defines not covered by zfs_config.h or spl_config.h
-AM_CFLAGS = -ggdb -O2 -std=c99 -Wall -Wstrict-prototypes -Wshadow \
-	-Werror -Wno-switch -Wno-unused -Wno-missing-braces \
-	-Wno-unknown-pragmas -Wno-parentheses -Wno-uninitialized \
-	-fno-strict-aliasing -D_GNU_SOURCE -D__EXTENSIONS__ \
-	-D_POSIX_PTHREAD_SEMANTICS -D_FILE_OFFSET_BITS=64 \
-	-D_LARGEFILE64_SOURCE -D_REENTRANT \
+AM_CFLAGS = -Wall -Wstrict-prototypes -Wshadow -Werror -Wno-switch \
+	-Wno-unused -Wno-missing-braces -Wno-unknown-pragmas \
+	-Wno-parentheses -Wno-uninitialized -fno-strict-aliasing \
+	-D_GNU_SOURCE -D__EXTENSIONS__ -D_POSIX_PTHREAD_SEMANTICS \
+	-D_FILE_OFFSET_BITS=64 -D_LARGEFILE64_SOURCE -D_REENTRANT \
 	-DTEXT_DOMAIN=\\\"zfs-linux-user\\\"
 DEFAULT_INCLUDES = -I${top_srcdir}/lib/libspl/include
 zfs_SOURCES = \
diff --git a/cmd/zinject/Makefile.in b/cmd/zinject/Makefile.in
index caf58c3efe..a3c365d936 100644
--- a/cmd/zinject/Makefile.in
+++ b/cmd/zinject/Makefile.in
@@ -200,18 +200,15 @@ target_cpu = @target_cpu@
 target_os = @target_os@
 target_vendor = @target_vendor@
 
-# Default build options
-
 # FIXME: Quiet warnings not covered by the gcc-* patches.  We should
 # FIXME: consider removing this as soon as we reasonably can.
 
 # Expected defines not covered by zfs_config.h or spl_config.h
-AM_CFLAGS = -ggdb -O2 -std=c99 -Wall -Wstrict-prototypes -Wshadow \
-	-Werror -Wno-switch -Wno-unused -Wno-missing-braces \
-	-Wno-unknown-pragmas -Wno-parentheses -Wno-uninitialized \
-	-fno-strict-aliasing -D_GNU_SOURCE -D__EXTENSIONS__ \
-	-D_POSIX_PTHREAD_SEMANTICS -D_FILE_OFFSET_BITS=64 \
-	-D_LARGEFILE64_SOURCE -D_REENTRANT \
+AM_CFLAGS = -Wall -Wstrict-prototypes -Wshadow -Werror -Wno-switch \
+	-Wno-unused -Wno-missing-braces -Wno-unknown-pragmas \
+	-Wno-parentheses -Wno-uninitialized -fno-strict-aliasing \
+	-D_GNU_SOURCE -D__EXTENSIONS__ -D_POSIX_PTHREAD_SEMANTICS \
+	-D_FILE_OFFSET_BITS=64 -D_LARGEFILE64_SOURCE -D_REENTRANT \
 	-DTEXT_DOMAIN=\\\"zfs-linux-user\\\"
 DEFAULT_INCLUDES = -I${top_srcdir}/lib/libspl/include
 zinject_SOURCES = \
diff --git a/cmd/zpios/Makefile.in b/cmd/zpios/Makefile.in
index 0ee466f6cc..2027ecf16c 100644
--- a/cmd/zpios/Makefile.in
+++ b/cmd/zpios/Makefile.in
@@ -201,18 +201,15 @@ target_cpu = @target_cpu@
 target_os = @target_os@
 target_vendor = @target_vendor@
 
-# Default build options
-
 # FIXME: Quiet warnings not covered by the gcc-* patches.  We should
 # FIXME: consider removing this as soon as we reasonably can.
 
 # Expected defines not covered by zfs_config.h or spl_config.h
-AM_CFLAGS = -ggdb -O2 -std=c99 -Wall -Wstrict-prototypes -Wshadow \
-	-Werror -Wno-switch -Wno-unused -Wno-missing-braces \
-	-Wno-unknown-pragmas -Wno-parentheses -Wno-uninitialized \
-	-fno-strict-aliasing -D_GNU_SOURCE -D__EXTENSIONS__ \
-	-D_POSIX_PTHREAD_SEMANTICS -D_FILE_OFFSET_BITS=64 \
-	-D_LARGEFILE64_SOURCE -D_REENTRANT \
+AM_CFLAGS = -Wall -Wstrict-prototypes -Wshadow -Werror -Wno-switch \
+	-Wno-unused -Wno-missing-braces -Wno-unknown-pragmas \
+	-Wno-parentheses -Wno-uninitialized -fno-strict-aliasing \
+	-D_GNU_SOURCE -D__EXTENSIONS__ -D_POSIX_PTHREAD_SEMANTICS \
+	-D_FILE_OFFSET_BITS=64 -D_LARGEFILE64_SOURCE -D_REENTRANT \
 	-DTEXT_DOMAIN=\\\"zfs-linux-user\\\"
 zpios_SOURCES = \
 	$(top_srcdir)/cmd/zpios/zpios.h \
diff --git a/cmd/zpool/Makefile.in b/cmd/zpool/Makefile.in
index 341ca04064..c975168520 100644
--- a/cmd/zpool/Makefile.in
+++ b/cmd/zpool/Makefile.in
@@ -201,18 +201,15 @@ target_cpu = @target_cpu@
 target_os = @target_os@
 target_vendor = @target_vendor@
 
-# Default build options
-
 # FIXME: Quiet warnings not covered by the gcc-* patches.  We should
 # FIXME: consider removing this as soon as we reasonably can.
 
 # Expected defines not covered by zfs_config.h or spl_config.h
-AM_CFLAGS = -ggdb -O2 -std=c99 -Wall -Wstrict-prototypes -Wshadow \
-	-Werror -Wno-switch -Wno-unused -Wno-missing-braces \
-	-Wno-unknown-pragmas -Wno-parentheses -Wno-uninitialized \
-	-fno-strict-aliasing -D_GNU_SOURCE -D__EXTENSIONS__ \
-	-D_POSIX_PTHREAD_SEMANTICS -D_FILE_OFFSET_BITS=64 \
-	-D_LARGEFILE64_SOURCE -D_REENTRANT \
+AM_CFLAGS = -Wall -Wstrict-prototypes -Wshadow -Werror -Wno-switch \
+	-Wno-unused -Wno-missing-braces -Wno-unknown-pragmas \
+	-Wno-parentheses -Wno-uninitialized -fno-strict-aliasing \
+	-D_GNU_SOURCE -D__EXTENSIONS__ -D_POSIX_PTHREAD_SEMANTICS \
+	-D_FILE_OFFSET_BITS=64 -D_LARGEFILE64_SOURCE -D_REENTRANT \
 	-DTEXT_DOMAIN=\\\"zfs-linux-user\\\"
 DEFAULT_INCLUDES = -I${top_srcdir}/lib/libspl/include
 zpool_SOURCES = \
diff --git a/cmd/ztest/Makefile.in b/cmd/ztest/Makefile.in
index 91345a8c2a..5944c33726 100644
--- a/cmd/ztest/Makefile.in
+++ b/cmd/ztest/Makefile.in
@@ -200,18 +200,15 @@ target_cpu = @target_cpu@
 target_os = @target_os@
 target_vendor = @target_vendor@
 
-# Default build options
-
 # FIXME: Quiet warnings not covered by the gcc-* patches.  We should
 # FIXME: consider removing this as soon as we reasonably can.
 
 # Expected defines not covered by zfs_config.h or spl_config.h
-AM_CFLAGS = -ggdb -O2 -std=c99 -Wall -Wstrict-prototypes -Wshadow \
-	-Werror -Wno-switch -Wno-unused -Wno-missing-braces \
-	-Wno-unknown-pragmas -Wno-parentheses -Wno-uninitialized \
-	-fno-strict-aliasing -D_GNU_SOURCE -D__EXTENSIONS__ \
-	-D_POSIX_PTHREAD_SEMANTICS -D_FILE_OFFSET_BITS=64 \
-	-D_LARGEFILE64_SOURCE -D_REENTRANT \
+AM_CFLAGS = -Wall -Wstrict-prototypes -Wshadow -Werror -Wno-switch \
+	-Wno-unused -Wno-missing-braces -Wno-unknown-pragmas \
+	-Wno-parentheses -Wno-uninitialized -fno-strict-aliasing \
+	-D_GNU_SOURCE -D__EXTENSIONS__ -D_POSIX_PTHREAD_SEMANTICS \
+	-D_FILE_OFFSET_BITS=64 -D_LARGEFILE64_SOURCE -D_REENTRANT \
 	-DTEXT_DOMAIN=\\\"zfs-linux-user\\\"
 DEFAULT_INCLUDES = -I${top_srcdir}/lib/libspl/include
 ztest_SOURCES = \
diff --git a/lib/libavl/Makefile.in b/lib/libavl/Makefile.in
index 18d7ad4626..f937ce1c6e 100644
--- a/lib/libavl/Makefile.in
+++ b/lib/libavl/Makefile.in
@@ -205,18 +205,15 @@ target_cpu = @target_cpu@
 target_os = @target_os@
 target_vendor = @target_vendor@
 
-# Default build options
-
 # FIXME: Quiet warnings not covered by the gcc-* patches.  We should
 # FIXME: consider removing this as soon as we reasonably can.
 
 # Expected defines not covered by zfs_config.h or spl_config.h
-AM_CFLAGS = -ggdb -O2 -std=c99 -Wall -Wstrict-prototypes -Wshadow \
-	-Werror -Wno-switch -Wno-unused -Wno-missing-braces \
-	-Wno-unknown-pragmas -Wno-parentheses -Wno-uninitialized \
-	-fno-strict-aliasing -D_GNU_SOURCE -D__EXTENSIONS__ \
-	-D_POSIX_PTHREAD_SEMANTICS -D_FILE_OFFSET_BITS=64 \
-	-D_LARGEFILE64_SOURCE -D_REENTRANT \
+AM_CFLAGS = -Wall -Wstrict-prototypes -Wshadow -Werror -Wno-switch \
+	-Wno-unused -Wno-missing-braces -Wno-unknown-pragmas \
+	-Wno-parentheses -Wno-uninitialized -fno-strict-aliasing \
+	-D_GNU_SOURCE -D__EXTENSIONS__ -D_POSIX_PTHREAD_SEMANTICS \
+	-D_FILE_OFFSET_BITS=64 -D_LARGEFILE64_SOURCE -D_REENTRANT \
 	-DTEXT_DOMAIN=\\\"zfs-linux-user\\\"
 DEFAULT_INCLUDES = \
 	-I${top_srcdir}/module/avl/include \
diff --git a/lib/libnvpair/Makefile.in b/lib/libnvpair/Makefile.in
index a1f11ac27b..dcdfe0e668 100644
--- a/lib/libnvpair/Makefile.in
+++ b/lib/libnvpair/Makefile.in
@@ -205,18 +205,15 @@ target_cpu = @target_cpu@
 target_os = @target_os@
 target_vendor = @target_vendor@
 
-# Default build options
-
 # FIXME: Quiet warnings not covered by the gcc-* patches.  We should
 # FIXME: consider removing this as soon as we reasonably can.
 
 # Expected defines not covered by zfs_config.h or spl_config.h
-AM_CFLAGS = -ggdb -O2 -std=c99 -Wall -Wstrict-prototypes -Wshadow \
-	-Werror -Wno-switch -Wno-unused -Wno-missing-braces \
-	-Wno-unknown-pragmas -Wno-parentheses -Wno-uninitialized \
-	-fno-strict-aliasing -D_GNU_SOURCE -D__EXTENSIONS__ \
-	-D_POSIX_PTHREAD_SEMANTICS -D_FILE_OFFSET_BITS=64 \
-	-D_LARGEFILE64_SOURCE -D_REENTRANT \
+AM_CFLAGS = -Wall -Wstrict-prototypes -Wshadow -Werror -Wno-switch \
+	-Wno-unused -Wno-missing-braces -Wno-unknown-pragmas \
+	-Wno-parentheses -Wno-uninitialized -fno-strict-aliasing \
+	-D_GNU_SOURCE -D__EXTENSIONS__ -D_POSIX_PTHREAD_SEMANTICS \
+	-D_FILE_OFFSET_BITS=64 -D_LARGEFILE64_SOURCE -D_REENTRANT \
 	-DTEXT_DOMAIN=\\\"zfs-linux-user\\\"
 DEFAULT_INCLUDES = \
 	-I${top_srcdir}/module/nvpair/include \
diff --git a/lib/libspl/Makefile.in b/lib/libspl/Makefile.in
index e22c4a0004..96d35b8d4b 100644
--- a/lib/libspl/Makefile.in
+++ b/lib/libspl/Makefile.in
@@ -206,18 +206,15 @@ target_cpu = @target_cpu@
 target_os = @target_os@
 target_vendor = @target_vendor@
 
-# Default build options
-
 # FIXME: Quiet warnings not covered by the gcc-* patches.  We should
 # FIXME: consider removing this as soon as we reasonably can.
 
 # Expected defines not covered by zfs_config.h or spl_config.h
-AM_CFLAGS = -ggdb -O2 -std=c99 -Wall -Wstrict-prototypes -Wshadow \
-	-Werror -Wno-switch -Wno-unused -Wno-missing-braces \
-	-Wno-unknown-pragmas -Wno-parentheses -Wno-uninitialized \
-	-fno-strict-aliasing -D_GNU_SOURCE -D__EXTENSIONS__ \
-	-D_POSIX_PTHREAD_SEMANTICS -D_FILE_OFFSET_BITS=64 \
-	-D_LARGEFILE64_SOURCE -D_REENTRANT \
+AM_CFLAGS = -Wall -Wstrict-prototypes -Wshadow -Werror -Wno-switch \
+	-Wno-unused -Wno-missing-braces -Wno-unknown-pragmas \
+	-Wno-parentheses -Wno-uninitialized -fno-strict-aliasing \
+	-D_GNU_SOURCE -D__EXTENSIONS__ -D_POSIX_PTHREAD_SEMANTICS \
+	-D_FILE_OFFSET_BITS=64 -D_LARGEFILE64_SOURCE -D_REENTRANT \
 	-DTEXT_DOMAIN=\\\"zfs-linux-user\\\"
 DEFAULT_INCLUDES = \
 	-I${top_srcdir}/lib/libspl/include
diff --git a/lib/libuutil/Makefile.in b/lib/libuutil/Makefile.in
index eb0e3698f7..c7af5439e2 100644
--- a/lib/libuutil/Makefile.in
+++ b/lib/libuutil/Makefile.in
@@ -201,18 +201,15 @@ target_cpu = @target_cpu@
 target_os = @target_os@
 target_vendor = @target_vendor@
 
-# Default build options
-
 # FIXME: Quiet warnings not covered by the gcc-* patches.  We should
 # FIXME: consider removing this as soon as we reasonably can.
 
 # Expected defines not covered by zfs_config.h or spl_config.h
-AM_CFLAGS = -ggdb -O2 -std=c99 -Wall -Wstrict-prototypes -Wshadow \
-	-Werror -Wno-switch -Wno-unused -Wno-missing-braces \
-	-Wno-unknown-pragmas -Wno-parentheses -Wno-uninitialized \
-	-fno-strict-aliasing -D_GNU_SOURCE -D__EXTENSIONS__ \
-	-D_POSIX_PTHREAD_SEMANTICS -D_FILE_OFFSET_BITS=64 \
-	-D_LARGEFILE64_SOURCE -D_REENTRANT \
+AM_CFLAGS = -Wall -Wstrict-prototypes -Wshadow -Werror -Wno-switch \
+	-Wno-unused -Wno-missing-braces -Wno-unknown-pragmas \
+	-Wno-parentheses -Wno-uninitialized -fno-strict-aliasing \
+	-D_GNU_SOURCE -D__EXTENSIONS__ -D_POSIX_PTHREAD_SEMANTICS \
+	-D_FILE_OFFSET_BITS=64 -D_LARGEFILE64_SOURCE -D_REENTRANT \
 	-DTEXT_DOMAIN=\\\"zfs-linux-user\\\"
 DEFAULT_INCLUDES = \
 	-I${top_srcdir}/lib/libuutil/include \
diff --git a/lib/libzcommon/Makefile.in b/lib/libzcommon/Makefile.in
index 361326a51f..8d90c373ec 100644
--- a/lib/libzcommon/Makefile.in
+++ b/lib/libzcommon/Makefile.in
@@ -206,18 +206,15 @@ target_cpu = @target_cpu@
 target_os = @target_os@
 target_vendor = @target_vendor@
 
-# Default build options
-
 # FIXME: Quiet warnings not covered by the gcc-* patches.  We should
 # FIXME: consider removing this as soon as we reasonably can.
 
 # Expected defines not covered by zfs_config.h or spl_config.h
-AM_CFLAGS = -ggdb -O2 -std=c99 -Wall -Wstrict-prototypes -Wshadow \
-	-Werror -Wno-switch -Wno-unused -Wno-missing-braces \
-	-Wno-unknown-pragmas -Wno-parentheses -Wno-uninitialized \
-	-fno-strict-aliasing -D_GNU_SOURCE -D__EXTENSIONS__ \
-	-D_POSIX_PTHREAD_SEMANTICS -D_FILE_OFFSET_BITS=64 \
-	-D_LARGEFILE64_SOURCE -D_REENTRANT \
+AM_CFLAGS = -Wall -Wstrict-prototypes -Wshadow -Werror -Wno-switch \
+	-Wno-unused -Wno-missing-braces -Wno-unknown-pragmas \
+	-Wno-parentheses -Wno-uninitialized -fno-strict-aliasing \
+	-D_GNU_SOURCE -D__EXTENSIONS__ -D_POSIX_PTHREAD_SEMANTICS \
+	-D_FILE_OFFSET_BITS=64 -D_LARGEFILE64_SOURCE -D_REENTRANT \
 	-DTEXT_DOMAIN=\\\"zfs-linux-user\\\"
 DEFAULT_INCLUDES = \
 	-I${top_srcdir}/module/zcommon/include \
diff --git a/lib/libzfs/Makefile.in b/lib/libzfs/Makefile.in
index 0e734ab051..f418f862f1 100644
--- a/lib/libzfs/Makefile.in
+++ b/lib/libzfs/Makefile.in
@@ -208,18 +208,15 @@ target_cpu = @target_cpu@
 target_os = @target_os@
 target_vendor = @target_vendor@
 
-# Default build options
-
 # FIXME: Quiet warnings not covered by the gcc-* patches.  We should
 # FIXME: consider removing this as soon as we reasonably can.
 
 # Expected defines not covered by zfs_config.h or spl_config.h
-AM_CFLAGS = -ggdb -O2 -std=c99 -Wall -Wstrict-prototypes -Wshadow \
-	-Werror -Wno-switch -Wno-unused -Wno-missing-braces \
-	-Wno-unknown-pragmas -Wno-parentheses -Wno-uninitialized \
-	-fno-strict-aliasing -D_GNU_SOURCE -D__EXTENSIONS__ \
-	-D_POSIX_PTHREAD_SEMANTICS -D_FILE_OFFSET_BITS=64 \
-	-D_LARGEFILE64_SOURCE -D_REENTRANT \
+AM_CFLAGS = -Wall -Wstrict-prototypes -Wshadow -Werror -Wno-switch \
+	-Wno-unused -Wno-missing-braces -Wno-unknown-pragmas \
+	-Wno-parentheses -Wno-uninitialized -fno-strict-aliasing \
+	-D_GNU_SOURCE -D__EXTENSIONS__ -D_POSIX_PTHREAD_SEMANTICS \
+	-D_FILE_OFFSET_BITS=64 -D_LARGEFILE64_SOURCE -D_REENTRANT \
 	-DTEXT_DOMAIN=\\\"zfs-linux-user\\\"
 DEFAULT_INCLUDES = \
 	-I${top_srcdir}/lib/libzfs/include \
diff --git a/lib/libzpool/Makefile.in b/lib/libzpool/Makefile.in
index 557c0e60fa..2705c812cd 100644
--- a/lib/libzpool/Makefile.in
+++ b/lib/libzpool/Makefile.in
@@ -205,18 +205,15 @@ target_cpu = @target_cpu@
 target_os = @target_os@
 target_vendor = @target_vendor@
 
-# Default build options
-
 # FIXME: Quiet warnings not covered by the gcc-* patches.  We should
 # FIXME: consider removing this as soon as we reasonably can.
 
 # Expected defines not covered by zfs_config.h or spl_config.h
-AM_CFLAGS = -ggdb -O2 -std=c99 -Wall -Wstrict-prototypes -Wshadow \
-	-Werror -Wno-switch -Wno-unused -Wno-missing-braces \
-	-Wno-unknown-pragmas -Wno-parentheses -Wno-uninitialized \
-	-fno-strict-aliasing -D_GNU_SOURCE -D__EXTENSIONS__ \
-	-D_POSIX_PTHREAD_SEMANTICS -D_FILE_OFFSET_BITS=64 \
-	-D_LARGEFILE64_SOURCE -D_REENTRANT \
+AM_CFLAGS = -Wall -Wstrict-prototypes -Wshadow -Werror -Wno-switch \
+	-Wno-unused -Wno-missing-braces -Wno-unknown-pragmas \
+	-Wno-parentheses -Wno-uninitialized -fno-strict-aliasing \
+	-D_GNU_SOURCE -D__EXTENSIONS__ -D_POSIX_PTHREAD_SEMANTICS \
+	-D_FILE_OFFSET_BITS=64 -D_LARGEFILE64_SOURCE -D_REENTRANT \
 	-DTEXT_DOMAIN=\\\"zfs-linux-user\\\"
 DEFAULT_INCLUDES = \
 	-I${top_srcdir}/module/zpool/include \