add fake ethercat library to build system.

.gitignore

@@ -33,6 +33,7 @@ ethercat.spec
 examples/dc_user/ec_dc_user_example
 examples/user/ec_user_example
 examples/user/build/
+fake_lib/libfakeethercat.la
 lib/*.cmake
 lib/libethercat.la
 lib/libethercat.pc

Makefile.am

@@ -47,6 +47,11 @@ SUBDIRS += \
 	examples
 endif
 
+if ENABLE_FAKEUSERLIB
+SUBDIRS += \
+	fake_lib
+endif
+
 if ENABLE_TTY
 SUBDIRS += tty
 endif

configure.ac

@@ -1168,6 +1168,37 @@ fi
 
 AM_CONDITIONAL(ENABLE_USERLIB, test "x$userlib" = "x1")
 
+#-----------------------------------------------------------------------------
+# Fake Userspace library generation
+#-----------------------------------------------------------------------------
+
+AC_MSG_CHECKING([whether to build the fake userspace library])
+
+AC_ARG_ENABLE([fakeuserlib],
+    AS_HELP_STRING([--enable-fakeuserlib],
+                   [Generation of the userspace library (default: no)]),
+    [
+        case "${enableval}" in
+            yes) fakeuserlib=1
+                ;;
+            no) fakeuserlib=0
+                ;;
+            *) AC_MSG_ERROR([Invalid value for --enable-fakeuserlib])
+                ;;
+        esac
+    ],
+    [fakeuserlib=0]
+)
+
+if test "x${fakeuserlib}" = "x1"; then
+    AC_MSG_RESULT([yes])
+    PKG_CHECK_MODULES([RTIPC], [librtipc])
+else
+    AC_MSG_RESULT([no])
+fi
+
+AM_CONDITIONAL(ENABLE_FAKEUSERLIB, test "x$fakeuserlib" = "x1")
+
 #-----------------------------------------------------------------------------
 # TTY driver
 #-----------------------------------------------------------------------------
@@ -1389,6 +1420,7 @@ AC_CONFIG_FILES([
         examples/user/Makefile
         examples/xenomai/Makefile
         examples/xenomai_posix/Makefile
+        fake_lib/Makefile
         include/Makefile
         lib/Makefile
         lib/libethercat.pc

fake_lib/Makefile.am

@@ -0,0 +1,46 @@
+#------------------------------------------------------------------------------
+#
+#  Copyright (C) 2006-2024  Florian Pose, Ingenieurgemeinschaft IgH
+#
+#  This file is part of the IgH EtherCAT master userspace library.
+#
+#  The IgH EtherCAT master userspace library is free software; you can
+#  redistribute it and/or modify it under the terms of the GNU Lesser General
+#  Public License as published by the Free Software Foundation; version 2.1 of
+#  the License.
+#
+#  The IgH EtherCAT master userspace library is distributed in the hope that
+#  it will be useful, but WITHOUT ANY WARRANTY; without even the implied
+#  warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#  GNU Lesser General Public License for more details.
+#
+#  You should have received a copy of the GNU Lesser General Public License
+#  along with the IgH EtherCAT master userspace library. If not, see
+#  <http://www.gnu.org/licenses/>.
+#
+#------------------------------------------------------------------------------
+
+lib_LTLIBRARIES = libfakeethercat.la
+
+#------------------------------------------------------------------------------
+
+libfakeethercat_la_SOURCES = \
+	fakeethercat.cpp
+
+noinst_HEADERS = \
+	fakeethercat.h
+
+libfakeethercat_la_CXXFLAGS = \
+	-fno-strict-aliasing \
+	-Wall \
+	-I$(top_srcdir)/include \
+	-Dethercat_EXPORTS \
+	-fvisibility=hidden \
+	$(RTIPC_CFLAGS)
+
+libfakeethercat_la_LDFLAGS = -version-info 3:0:2 \
+	$(RTIPC_LIBS) \
+	-Wl,--version-script=$(srcdir)/../lib/libethercat.map \
+	-fvisibility=hidden
+
+libfakeethercat_la_DEPENDENCIES = ../lib/libethercat.map