Add DLLTOOL variable so that one can override dlltool binary

This fix cross compilation on linux for Windows

diff --git a/lib/Makefile b/lib/Makefile
index f7bd439..f535435 100644 (file)
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -54,6 +54,8 @@ DEBUGFLAGS:= -Wall -Wextra -Wcast-qual -Wcast-align -Wshadow \
 CFLAGS  += $(DEBUGFLAGS) $(MOREFLAGS)
 FLAGS    = $(CPPFLAGS) $(CFLAGS) $(LDFLAGS)
 
+DLLTOOL ?= dlltool
+
 SRCFILES := $(sort $(wildcard *.c))
 
 
@@ -104,7 +106,7 @@ ifeq ($(BUILD_SHARED),yes)  # can be disabled on command line
        @echo compiling dynamic library $(LIBVER)
 ifneq (,$(filter Windows%,$(OS)))
        $(Q)$(CC) $(FLAGS) -DLZ4_DLL_EXPORT=1 -shared $^ -o dll/$@.dll
-       dlltool -D dll/liblz4.dll -d dll/liblz4.def -l dll/liblz4.lib
+       $(DLLTOOL) -D dll/liblz4.dll -d dll/liblz4.def -l dll/liblz4.lib
 else
        $(Q)$(CC) $(FLAGS) -shared $^ -fPIC -fvisibility=hidden $(SONAME_FLAGS) -o $@
        @echo creating versioned links