Small change to clean up the way flags are set and to prepare for addition

of shared libraries.

config/CONFIG_SITE.Host.darwin-ppc

@@ -2,4 +2,4 @@
 
 -include $(EPICS_BASE)/config/CONFIG_SITE.Host.Darwin
 
-SHARED_LIBRARY=NO
+SHARED_LIBRARIES=NO

configure/os/CONFIG.Common.darwin-ppc

@@ -18,6 +18,13 @@ ARCH_CLASS = ppc
 #
 SHARED_LIBRARIES=NO
 
+#
+# Special flags for Darwin
+#   No fancy precompiled headers
+#   No common blocks (as required when going to shared libraries)
+#
+OP_SYS_CFLAGS += -no-cpp-precomp -fno-common
+
 #
 # Need to get some fink-installed packages (readline, etc.).
 # If you don't have readline on your system you must remove
@@ -27,3 +34,9 @@ SHARED_LIBRARIES=NO
 OP_SYS_CPPFLAGS += -I$(FINK_DIR)/include
 OP_SYS_LDFLAGS += -L$(FINK_DIR)/lib
 OP_SYS_LDLIBS += -lreadline
+
+#
+# Stuff that will be needed when going to shared libraries
+#
+SHRLIB_LDFLAGS = -dynamiclib
+SHRLIB_SUFFIX = $(addprefix .,$(SHRLIB_VERSION)).dylib

configure/os/CONFIG.darwin-ppc.darwin-ppc

@@ -11,5 +11,11 @@ include $(CONFIG)/CONFIG.gnuCommon
 
 GNU_DIR = /usr
 
-CC = $(GNU_BIN)/cc -no-cpp-precomp
-CCC = $(GNU_BIN)/c++ -no-cpp-precomp
+CC = $(GNU_BIN)/cc
+CCC = $(GNU_BIN)/c++
+
+#
+# Position-independent code is the default on Darwin.
+#
+CODE_CFLAGS = 
+CODE_CXXFLAGS =