fixed some build file flaws

samples/Makefile.am

@@ -0,0 +1,41 @@
+AUTOMAKE_OPTIONS = nostdinc
+
+CPPFLAGS_COMMON = \
+	-I$(abs_builddir) \
+	-I$(abs_builddir)/../lib  \
+	-I$(abs_srcdir) \
+	-I$(abs_srcdir)/../lib \
+	-I$(includedir)
+
+CFLAGS_COMMON =
+CXXFLAGS_COMMON =
+LDFLAGS_COMMON = -L$(abs_builddir)/../lib -L$(libdir)
+LIBADD_COMMON = ../lib/libhawk.la
+
+noinst_PROGRAMS = 
+
+if ENABLE_CXX
+
+noinst_PROGRAMS += hawk02 hawk51 sed21
+
+hawk02_SOURCES = hawk02.c
+hawk02_CPPFLAGS = $(CPPFLAGS_COMMON)
+hawk02_CFLAGS = $(CFLAGS_COMMON)
+hawk02_LDFLAGS = $(LDFLAGS_COMMON)
+hawk02_LDADD = $(LIBADD_COMMON) $(LIBM)
+
+hawk51_SOURCES = hawk51.cpp
+hawk51_CPPFLAGS = $(CPPFLAGS_COMMON)
+hawk51_CFLAGS = $(CFLAGS_COMMON)
+hawk51_CXXFLAGS = $(CXXFLAGS_COMMON)
+hawk51_LDFLAGS = $(LDFLAGS_COMMON)
+hawk51_LDADD = $(LIBADD_COMMON)
+
+sed21_SOURCES = sed21.cpp
+sed21_CPPFLAGS = $(CPPFLAGS_COMMON)
+sed21_CFLAGS = $(CFLAGS_COMMON)
+sed21_CXXFLAGS = $(CXXFLAGS_COMMON)
+sed21_LDFLAGS = $(LDFLAGS_COMMON)
+sed21_LDADD = $(LIBADD_COMMON)
+
+endif