Add an Android-friendly build system

This dependson the Androgenizer project, which helps keep autofoo-based build
systems in sync with the Android build.

Android.configure.mk

@@ -0,0 +1,39 @@
+# This file is the top android makefile for all sub-modules.
+
+LOCAL_PATH := $(call my-dir)
+include $(CLEAR_VARS)
+
+json_c_TOP := $(LOCAL_PATH)
+
+JSON_C_BUILT_SOURCES := Android.mk
+
+JSON_C_BUILT_SOURCES := $(patsubst %, $(abspath $(json_c_TOP))/%, $(JSON_C_BUILT_SOURCES))
+
+.PHONY: json-c-configure json-c-configure-real
+json-c-configure-real:
+	echo $(JSON_C_BUILT_SOURCES)
+	cd $(json_c_TOP) ; \
+	$(abspath $(json_c_TOP))/autogen.sh && \
+	CC="$(CONFIGURE_CC)" \
+	CFLAGS="$(CONFIGURE_CFLAGS)" \
+	LD=$(TARGET_LD) \
+	LDFLAGS="$(CONFIGURE_LDFLAGS)" \
+	CPP=$(CONFIGURE_CPP) \
+	CPPFLAGS="$(CONFIGURE_CPPFLAGS)" \
+	PKG_CONFIG_LIBDIR=$(CONFIGURE_PKG_CONFIG_LIBDIR) \
+	PKG_CONFIG_TOP_BUILD_DIR=/ \
+	ac_cv_func_malloc_0_nonnull=yes \
+	ac_cv_func_realloc_0_nonnull=yes \
+	$(abspath $(json_c_TOP))/$(CONFIGURE) --host=$(CONFIGURE_HOST) \
+	--prefix=/system \
+	&& \
+	for file in $(JSON_C_BUILT_SOURCES); do \
+		rm -f $$file && \
+		make -C $$(dirname $$file) $$(basename $$file) ; \
+	done
+
+json-c-configure: json-c-configure-real
+
+PA_CONFIGURE_TARGETS += json-c-configure
+
+-include $(json_c_TOP)/Android.mk

Makefile.am

@@ -44,3 +44,17 @@ distclean-local:
 	-rm -rf $(testsubdir)
 	-rm -rf config.h.in~ Makefile.in aclocal.m4 autom4te.cache/ config.guess config.sub configure depcomp install-sh ltmain.sh missing
 
+ANDROID_CFLAGS = -I$(top_srcdir) -DHAVE_CONFIG_H
+
+Android.mk: Makefile.am
+	androgenizer -:PROJECT json-c \
+		-:SHARED libjson \
+		-:TAGS eng debug \
+		-:REL_TOP $(top_srcdir) -:ABS_TOP $(abs_top_srcdir) \
+		-:SOURCES $(libjson_la_SOURCES) $(nodist_libjson_la_SOURCES) \
+		-:CFLAGS $(DEFS) $(ANDROID_CFLAGS) $(libjson_la_CFLAGS) \
+		-:LDFLAGS $(libjson_la_LDFLAGS) $(libjson_la_LIBADD) \
+		-:HEADER_TARGET json \
+		-:HEADERS $(libjsoninclude_HEADERS) \
+		-:PASSTHROUGH LOCAL_ARM_MODE:=arm \
+	> $@