improved make file

diff --git a/example-codegen/Makefile.am b/example-codegen/Makefile.am
index 28f9e75..4baab90 100644 (file)
--- a/example-codegen/Makefile.am
+++ b/example-codegen/Makefile.am
@@ -2,13 +2,12 @@ INCLUDES = -I$(top_srcdir)/src @BOOST_CPPFLAGS@ @CPPUNIT_CFLAGS@ -I$(top_srcdir)
 
 LDADD = $(top_builddir)/src/libt2n.la @BOOST_SERIALIZATION_LIB@ @BOOST_LDFLAGS@
 
+CMDGROUPS = default other
+
 libdefault_la_SOURCES = default_client.cpp
 libother_la_SOURCES = other_client.cpp
 noinst_LTLIBRARIES = libdefault.la libother.la
 
-
-CMDGROUPS = default other
-
 client_SOURCES = client.cpp
 client_LDADD = $(LDADD) libdefault.la libother.la
 
@@ -19,8 +18,12 @@ server_SOURCES = server.cpp \
 
 noinst_PROGRAMS = client server
 
-codegen.stamp: default.cpp other.cpp $(top_builddir)/codegen/codegen
+
+# always the same:
+
+codegen.stamp: $(CMDGROUPS:%=%.cpp) $(top_builddir)/codegen/codegen
 # assuming we have some unix like shell
+       echo BUILT_SOURCES: $(BUILT_SOURCES)
        for i in $(CMDGROUPS); do \
                cp -v $(top_srcdir)/codegen/codegen-stubhead.hxx $${i}_common.hxx; \
                cp -v $(top_srcdir)/codegen/codegen-stubhead.hxx $${i}_server.hxx; \
@@ -31,13 +34,10 @@ codegen.stamp: default.cpp other.cpp $(top_builddir)/codegen/codegen
                $(top_builddir)/codegen/codegen $${i}.cpp $${i}.xml $${i}; \
        done; touch $@
 
-DEFAULT_GENERATED = default_common.hxx default_common.cpp default_client.hxx default_client.cpp default_server.hxx default_server.cpp
-$(DEFAULT_GENERATED): codegen.stamp
-
-OTHER_GENERATED = other_common.hxx other_common.cpp other_client.hxx other_client.cpp other_server.hxx other_server.cpp
-$(OTHER_GENERATED): codegen.stamp
+# assuming we have gnu make?
+BUILT_SOURCES = $(foreach i, $(CMDGROUPS), $(foreach j, _common.hxx _common.cpp _client.hxx _client.cpp _server.hxx _server.cpp, $(i)$(j)) )
 
-BUILT_SOURCES = $(DEFAULT_GENERATED) $(OTHER_GENERATED)
+$(BUILT_SOURCES) : codegen.stamp
 
 TESTS = test