Reposting. I think I've addresses all of the comments, and this fix is as short as possible. I considered passing in all of the variables from outside, but (a) this doesn't scale well, and (b) things like $(NLLIBNAME) are "scratch" variables used by the make process when doing discovery about the host it's running on... they shouldn't be externally visible, much less overridden by some encompassing make. Putting the auto-discovery into its own path with a gating variable seems like the cleanest, most robust, most maintainable approach.
Changes: 1. Move invariant definitions to before any cross-compilation conditional sections for clarity (and to avoid having to duplicate them). 2. Bracket any host (native) compilation sections with conditional based on $(CROSS_COMPILE) being empty. 4. Add 'else' section for cross-compilation using openssl and libnl-1 (or libnl-2 if explicitly selected). --- crda-1.1.0/Makefile 2009-08-10 13:37:36.000000000 -0700 +++ crda-1.1.0/Makefile.new 2009-08-10 17:29:22.000000000 -0700 @@ -22,12 +22,17 @@ # with make PUBKEY_DIR=/usr/lib/crda/pubkeys PUBKEY_DIR?=pubkeys +MKDIR ?= mkdir -p +INSTALL ?= install + CFLAGS += -Wall -g all: all_noverify verify all_noverify: crda intersect regdbdump +ifeq ($(CROSS_COMPILE),) + ifeq ($(USE_OPENSSL),1) CFLAGS += -DUSE_OPENSSL `pkg-config --cflags openssl` LDLIBS += `pkg-config --libs openssl` @@ -41,8 +46,6 @@ reglib.o: keys-gcrypt.c endif -MKDIR ?= mkdir -p -INSTALL ?= install NL1FOUND := $(shell pkg-config --atleast-version=1 libnl-1 && echo Y) NL2FOUND := $(shell pkg-config --atleast-version=2 libnl-2.0 && echo Y) @@ -64,6 +67,31 @@ NLLIBS += `pkg-config --libs $(NLLIBNAME)` CFLAGS += `pkg-config --cflags $(NLLIBNAME)` +else + +ifeq ($(USE_OPENSSL),1) +CFLAGS += -DUSE_OPENSSL +LDLIBS += -lssl + +reglib.o: keys-ssl.c + +else +CFLAGS += -DUSE_GCRYPT +LDLIBS += -lgcrypt + +reglib.o: keys-gcrypt.c + +endif + +ifeq ($(USE_LIBNL20),1) +CFLAGS += -DCONFIG_LIBNL20 +NLLIBS = -lnl-genl -lnl-2.0 +else +NLLIBS = -lnl +endif + +endif + ifeq ($(V),1) Q= NQ=@true