pass ldflags, read cflags, build shared, respect toolchain
diff --git a/Makefile b/Makefile
index 0078324..d722946 100644
--- a/Makefile
+++ b/Makefile
@@ -9,17 +9,17 @@ ifndef PREFIX
 endif
 
 ## Compiler to use (modify this for cross compile).
-CC = gcc
+CC ?= gcc
 ## Other tools you need to modify for cross compile (static lib only).
-AR = ar
-RANLIB = ranlib
+AR ?= ar
+RANLIB ?= ranlib
 
 ## Uncomment this to build tools using static version of the library.
 ## Mostly useful for embedded platforms without ldd, or to create
 ## a local version (non-root).
 ## Standard distros should comment that option to save space and to
 ## build libiw.so used by third parties...
-BUILD_STATIC = y
+#BUILD_STATIC = y
 
 ## Uncomment this to build without using libm (less efficient).
 ## This is mostly useful for embedded platforms without maths.
@@ -104,7 +104,7 @@ ifdef BUILD_WE_ESSENTIAL
 endif
 
 # Other flags
-CFLAGS=-Os -W -Wall -Wstrict-prototypes -Wmissing-prototypes -Wshadow \
+CFLAGS+=-W -Wall -Wstrict-prototypes -Wmissing-prototypes -Wshadow \
 	-Wpointer-arith -Wcast-qual -Winline -I.
 #CFLAGS=-O2 -W -Wall -Wstrict-prototypes -I.
 DEPFLAGS=-MMD
@@ -119,7 +119,7 @@ all:: $(IWLIB) $(PROGS)
 %.o: %.c wireless.h
 	$(CC) $(XCFLAGS) -c $<
 %.so: %.c wireless.h
-	$(CC) $(XCFLAGS) $(PICFLAG) -c -o $@ $<
+	$(CC) $(XCFLAGS) $(PICFLAG) $(LDFLAGS) -c -o $@ $<
 
 iwconfig: iwconfig.o $(IWLIB)
 
@@ -147,7 +147,7 @@ wireless.h:
 
 # Compilation of the dynamic library
 $(DYNAMIC): $(OBJS:.o=.so)
-	$(CC) -shared -o $@ -Wl,-soname,$@ $(STRIPFLAGS) $(LIBS) -lc $^
+	$(CC) -shared -o $@ -Wl,-soname,$@ $(STRIPFLAGS) $(LIBS) $(LDFLAGS) -lc $^
 
 # Compilation of the static library
 $(STATIC): $(OBJS:.o=.so)