diff --git a/configure.ac b/configure.ac
index 96c16d2..488e283 100644
--- a/configure.ac
+++ b/configure.ac
@@ -112,7 +112,7 @@ AC_SUBST(SP_PACKAGE_VERSION_MAJOR)
 AC_SUBST(SP_PACKAGE_VERSION_MINOR)
 AC_SUBST(SP_PACKAGE_VERSION)
 
-AC_CONFIG_FILES([Makefile libserialport.pc])
+AC_CONFIG_FILES([Makefile libserialport.h libserialport.pc])
 
 AC_OUTPUT
 
diff --git a/libserialport.h b/libserialport.h.in
similarity index 84%
rename from libserialport.h
rename to libserialport.h.in
index d60c2da..f9f5b24 100644
--- a/libserialport.h
+++ b/libserialport.h.in
@@ -29,6 +29,17 @@ extern "C" {
 #include <windows.h>
 #endif
 
+/* Package version macros (e.g. for conditional compilation). */
+#define SP_PACKAGE_VERSION_MAJOR @SP_PACKAGE_VERSION_MAJOR@
+#define SP_PACKAGE_VERSION_MINOR @SP_PACKAGE_VERSION_MINOR@
+#define SP_PACKAGE_VERSION_STRING "@SP_PACKAGE_VERSION@"
+
+/* Library/libtool version macros (e.g. for conditional compilation). */
+#define SP_LIB_VERSION_CURRENT @SP_LIB_VERSION_CURRENT@
+#define SP_LIB_VERSION_REVISION @SP_LIB_VERSION_REVISION@
+#define SP_LIB_VERSION_AGE @SP_LIB_VERSION_AGE@
+#define SP_LIB_VERSION_STRING "@SP_LIB_VERSION@"
+
 /* A serial port. */
 struct sp_port {
 	/* Name used to open the port */