diff --git a/mingw-w64-libraries/pseh/Makefile.am b/mingw-w64-libraries/pseh/Makefile.am
index 0b45de1..69a75fd 100644
--- a/mingw-w64-libraries/pseh/Makefile.am
+++ b/mingw-w64-libraries/pseh/Makefile.am
@@ -1,5 +1,8 @@
 AUTOMAKE_OPTIONS = foreign subdir-objects
 
+AM_CPPFLAGS = -I$(srcdir)/include
+AM_CFLAGS = -Wall -Wstrict-aliasing=2
+
 lib_LIBRARIES = libpseh.a
 
 libpseh_a_SOURCES = \
diff --git a/mingw-w64-libraries/pseh/Makefile.in b/mingw-w64-libraries/pseh/Makefile.in
index 49116d0..e8e974e 100644
--- a/mingw-w64-libraries/pseh/Makefile.in
+++ b/mingw-w64-libraries/pseh/Makefile.in
@@ -208,6 +208,8 @@
 top_builddir = @top_builddir@
 top_srcdir = @top_srcdir@
 AUTOMAKE_OPTIONS = foreign subdir-objects
+AM_CPPFLAGS = -I$(srcdir)/include
+AM_CFLAGS = -Wall -Wstrict-aliasing=2
 lib_LIBRARIES = libpseh.a
 libpseh_a_SOURCES = \
   src/framebased.c \