Install configuration sources

The configuration sources are installed in /usr[/local]/lib/make-it-quick
The config.local-setup.mk contains installation-dependent setup.

Makefile

@@ -35,10 +35,17 @@ HDR_INSTALL=			\
 	config.unix.mk		\
 	config.vs2013-64.mk	\
 	config.vs2013.mk	\
-	rules.mk
+	rules.mk		\
+	config.local-setup..mk
+
+PREFIX_LIB=$(PREFIX)lib/make-it-quick/config/
+LIB_INSTALL=$(wildcard config/check*.c)
 
 # Include the makefile rules with special BUILD path
 BUILD=./
 include $(BUILD)rules.mk
 
 TESTS=example/
+
+config.local-setup.mk:
+	$(PRINT_GENERATE) echo > $@ CONFIG_SOURCES=$(PREFIX_LIB)make-it-quick/

config.mk

@@ -58,6 +58,10 @@ TO_INSTALL=	$(OUTPUT_EXE:%=%.install_exe)		\
 		$(DLL_INSTALL:%=%.install_dll)		\
 		$(HDR_INSTALL:%=%.install_hdr)
 
+# Local setup - Location of configuration files, etc (tweaked at install time)
+-include $(BUILD)config.local-setup.mk
+CONFIG_SOURCES?=/usr/lib/make-it-quick/
+
 # Sources to reformat
 CLANG_FORMAT_SOURCES=$(SOURCES) $(HDR_INSTALL)
 

rules.mk

@@ -442,11 +442,11 @@ $(OBJDIR)CFG-LIB_HAVE_lib%.c: 					$(PKG_DEPS)
 # Check if a function is present
 $(OBJDIR)CFG_HAVE_%.h: $(OBJDIR)CFG-FN_HAVE_%.c			$(CONFIG_DEPS)
 	$(PRINT_CONFIG)	$(FN_CONFIG)
-$(OBJDIR)CFG-FN_HAVE_%.c: $(BUILD)config/HAVE_%.c 		$(CONFIG_DEPS)
+$(OBJDIR)CFG-FN_HAVE_%.c: $(CONFIG_SOURCES)config/HAVE_%.c	$(CONFIG_DEPS)
 	$(PRINT_COMMAND) cp $< $@
 $(OBJDIR)CFG-FN_HAVE_%.c: config/HAVE_%.c			$(CONFIG_DEPS)
 	$(PRINT_COMMAND) cp $< $@
-$(OBJDIR)CFG-FN_HAVE_%.c: $(BUILD)config/check_%.c 		$(CONFIG_DEPS)
+$(OBJDIR)CFG-FN_HAVE_%.c: $(CONFIG_SOURCES)config/check_%.c	$(CONFIG_DEPS)
 	$(PRINT_COMMAND) cp $< $@
 $(OBJDIR)CFG-FN_HAVE_%.c: config/check_%.c			$(CONFIG_DEPS)
 	$(PRINT_COMMAND) cp $< $@