diff --git a/Makefile b/Makefile
index e5cdbb4737..99258b45dc 100644
--- a/Makefile
+++ b/Makefile
@@ -26,6 +26,9 @@ gitpush:
 todo:
 	grep -re TODO:0.9.2 libr binr
 
+farm:
+	./sys/farm/run.sh
+
 libr:
 	cd libr && ${MAKE} all
 
@@ -87,6 +90,7 @@ clean:
 mrproper:
 	cd libr && ${MAKE} mrproper
 	cd binr && ${MAKE} mrproper
+	cd shlr && ${MAKE} mrproper
 	rm -f config-user.mk plugins.cfg libr/config.h libr/include/r_userconf.h libr/config.mk
 	rm -f pkgcfg/*.pc
 
diff --git a/libr/Makefile b/libr/Makefile
index 0a44a52a4a..476858023f 100644
--- a/libr/Makefile
+++ b/libr/Makefile
@@ -17,7 +17,7 @@ all: libs
 
 libs:
 	@for lib in ${LIBLIST}; do \
-		cd $${lib} && ${MAKE} all || exit 1 ; cd .. ; done
+		cd $${lib} && ${MAKE} || exit 1 ; cd .. ; done
 	@echo Build done for: ${LIBLIST}
 
 pkgcfg:
diff --git a/libr/anal/cparse/Makefile b/libr/anal/cparse/Makefile
index cc6a673385..f056387e43 100644
--- a/libr/anal/cparse/Makefile
+++ b/libr/anal/cparse/Makefile
@@ -8,13 +8,16 @@ all: tree.o
 
 tree.o: lex.yy.o
 
+cparse.o: lemon
+	./lemon cparse.y
+	${CC} ${CFLAGS} -c cparse.c
+
 lex.yy.o: cparse.o
 	flex cparse.l
 	${CC} ${CFLAGS} -c lex.yy.c
 
-cparse.o: lemon
-	./lemon cparse.y
-	${CC} ${CFLAGS} -c cparse.c
+lemon.o:
+	${HOST_CC} ${CFLAGS} -c lemon.c
 
 lemon: lemon.o
 	${HOST_CC} lemon.o -o lemon
diff --git a/libr/asm/p/asm_z80.c b/libr/asm/p/asm_z80.c
index 505b7a5f4f..ec0aeb647d 100644
--- a/libr/asm/p/asm_z80.c
+++ b/libr/asm/p/asm_z80.c
@@ -1,4 +1,4 @@
-/* radare - LGPL - Copyright 2012 pancake<nopcode.org> */
+/* radare - LGPL - Copyright 2012 - pancake */
 
 #include <r_types.h>
 #include <r_util.h>
@@ -8,14 +8,12 @@
 #include "../arch/z80/z80.c"
 
 static int do_assemble(RAsm *a, RAsmOp *op, const char *buf) {
-	return op->inst_len = z80asm (obuf, op->buf);
+	return op->inst_len = z80asm (op->buf, buf);
 }
 
 static int do_disassemble(struct r_asm_t *a, struct r_asm_op_t *op, const ut8 *buf, ut64 len) {
 	int dlen = z80dis (0, buf, op->buf_asm, len);
-	if (dlen>0) {
-		// printf ("LEN IS OK\n");
-	} else dlen = 0;
+	if (dlen<0) dlen = 0;
 	op->inst_len = dlen;
 	return op->inst_len;
 }
diff --git a/libr/asm/p/x86.mk b/libr/asm/p/x86.mk
index 8aa88f33bc..cdfc3bac10 100644
--- a/libr/asm/p/x86.mk
+++ b/libr/asm/p/x86.mk
@@ -8,6 +8,8 @@ SHARED_X86+=../../shlr/udis86/syn-intel.o
 SHARED_X86+=../../shlr/udis86/syn.o
 SHARED_X86+=../../shlr/udis86/udis86.o
 
+SHARED2_X86=$(addprefix ../,${SHARED_X86})
+
 STATIC_OBJ+=${OBJ_X86}
 SHARED_OBJ+=${SHARED_X86}
 TARGET_X86=asm_x86.${EXT_SO}
@@ -15,4 +17,4 @@ TARGET_X86=asm_x86.${EXT_SO}
 ALL_TARGETS+=${TARGET_X86}
 
 ${TARGET_X86}: ${OBJ_X86}
-	${CC} $(call libname,asm_x86) ${LDFLAGS} ${CFLAGS} -o ${TARGET_X86} ${OBJ_X86}
+	${CC} $(call libname,asm_x86) ${LDFLAGS} ${CFLAGS} -o ${TARGET_X86} ${OBJ_X86} ${SHARED2_X86}
diff --git a/libr/core/cmd_magic.c b/libr/core/cmd_magic.c
index 804011bf0b..65993a4a43 100644
--- a/libr/core/cmd_magic.c
+++ b/libr/core/cmd_magic.c
@@ -1,6 +1,6 @@
 /* radare - LGPL - Copyright 2009-2012 // pancake<nopcode.org> */
-static int magicdepth = 99; //XXX: do not use global var here
 
+static int magicdepth = 99; //XXX: do not use global var here
 
 static void r_core_magic_at(RCore *core, const char *file, ut64 addr, int depth, int v) {
 	const char *fmt;
diff --git a/libr/core/io.c b/libr/core/io.c
index 71f7efb691..e22ce6d9cf 100644
--- a/libr/core/io.c
+++ b/libr/core/io.c
@@ -1,4 +1,4 @@
-/* radare - LGPL - Copyright 2009-2012 pancake<nopcode.org> */
+/* radare - LGPL - Copyright 2009-2012 - pancake */
 
 #include "r_core.h"
 
@@ -7,7 +7,7 @@ R_API int r_core_dump(RCore *core, const char *file, ut64 addr, ut64 size) {
 	ut8 *buf;
 	int bs = core->blocksize;
 	FILE *fd;
-	truncate (file, 0);
+	r_sys_truncate (file, 0);
 	fd = fopen (file, "wb");
 	if (!fd) {
 		eprintf ("Cannot open '%s' for writing\n", file);
diff --git a/libr/include/r_util.h b/libr/include/r_util.h
index b726b57cfb..e5919e9b1f 100644
--- a/libr/include/r_util.h
+++ b/libr/include/r_util.h
@@ -460,6 +460,7 @@ R_API int r_sys_cmd_str_full(const char *cmd, const char *input, char **output,
 #if __WINDOWS__
 R_API char *r_sys_cmd_str_w32(const char *cmd);
 #endif
+R_API int r_sys_truncate(const char *file, int sz);
 R_API int r_sys_cmd(const char *cmd);
 R_API int r_sys_cmdf (const char *fmt, ...);
 R_API char *r_sys_cmd_str(const char *cmd, const char *input, int *len);
diff --git a/libr/io/io.c b/libr/io/io.c
index ea17db0486..4c6a27d201 100644
--- a/libr/io/io.c
+++ b/libr/io/io.c
@@ -447,6 +447,6 @@ R_API int r_io_create (RIO *io, const char *file, int mode, int type) {
 	if (io->plugin && io->plugin->create)
 		return io->plugin->create (io, file, mode, type);
 	if (type == 'd'|| type == 1)
-		return mkdir (file, mode);
+		return r_sys_mkdir (file);
 	return creat (file, mode)? R_FALSE: R_TRUE;
 }
diff --git a/libr/lib/t/Makefile b/libr/lib/t/Makefile
index 01dd0177dc..594f380165 100644
--- a/libr/lib/t/Makefile
+++ b/libr/lib/t/Makefile
@@ -1,4 +1,5 @@
 BINDEPS=r_lib r_util
+LDFLAGS=-L..
 
 include ../../config.mk
 
diff --git a/libr/print/t/Makefile b/libr/print/t/Makefile
index 3aa7ded9ed..816eaaa39c 100644
--- a/libr/print/t/Makefile
+++ b/libr/print/t/Makefile
@@ -2,12 +2,11 @@ include ../../config.mk
 
 all: hex fmt
 
+BINS=fmt${EXT_EXE}
 BIN=hex
 OBJ=hex.o
 BINDEPS=r_cons r_print r_util
 
-fmt${EXT_EXE}: fmt.o
-
 myclean:
 	rm -f fmt fmt.o
 
diff --git a/libr/rules.mk b/libr/rules.mk
index b4c83cf7c3..2247a5fa89 100644
--- a/libr/rules.mk
+++ b/libr/rules.mk
@@ -12,7 +12,11 @@ all: $(PRE) $(ALL)
 	@$(MAKE) real_all
 
 real_all: ${EXTRA_TARGETS} ${LIBSO} ${LIBAR}
+ifeq (${OSTYPE},windows)
 	@-if [ -e t/Makefile ]; then (cd t && ${MAKE} all) ; fi
+else
+	@if [ -e t/Makefile ]; then (cd t && ${MAKE} all) ; fi
+endif
 	@-if [ -e p/Makefile ]; then (cd p && ${MAKE} all) ; fi
 	@true
 
@@ -103,10 +107,12 @@ all: ${BIN}${EXT_EXE} ${BINS}
 
 ${BINS}: 
 	echo ${LIBR}
-	${CC} ${CFLAGS} $@.c -L.. ${LDFLAGS} ${LDLIBS} -o $@${EXT_EXE}
+	${CC} ${CFLAGS} $@.c -L.. ${LDFLAGS} -o $@${EXT_EXE}
+#	${CC} ${CFLAGS} $@.c -L.. ${LDFLAGS} ${LDLIBS} -o $@${EXT_EXE}
 
 ${BIN}${EXT_EXE}: ${OBJ} ${SHARED_OBJ}
-	${CC} $+ -L.. ${LDFLAGS} ${LDLIBS} -o ${BIN}${EXT_EXE}
+	${CC} $+ -L.. -o ${BIN}${EXT_EXE} ${LDFLAGS}
+#	${CC} $+ -L.. -o ${BIN}${EXT_EXE} ${LDLIBS} ${LDFLAGS}
 endif
 
 # Dummy myclean rule that can be overriden by the t/ Makefile
diff --git a/libr/search/t/Makefile b/libr/search/t/Makefile
index 47f6dc842c..6ef293e3f2 100644
--- a/libr/search/t/Makefile
+++ b/libr/search/t/Makefile
@@ -1,6 +1,6 @@
 BINDEPS=r_search r_util
 
-all: test${EXT_EXE} test-str${EXT_EXE} test-regexp${EXT_EXE}
+BINS=test${EXT_EXE} test-str${EXT_EXE} test-regexp${EXT_EXE}
 
 include ../../rules.mk
 
diff --git a/libr/util/sys.c b/libr/util/sys.c
index ee5a170a8f..79f667f6b2 100644
--- a/libr/util/sys.c
+++ b/libr/util/sys.c
@@ -29,6 +29,18 @@ R_API ut64 r_sys_now(void) {
 	return ret;
 }
 
+R_API int r_sys_truncate(const char *file, int sz) {
+#if __WINDOWS__
+	int fd = open (file, O_RDWR);
+	if (!fd) return R_FALSE;
+	ftruncate (fd, sz);
+	close (fd);
+	return R_TRUE;
+#else
+	return truncate (file, sz)? R_FALSE: R_TRUE;
+#endif
+}
+
 R_API RList *r_sys_dir(const char *path) {
 	struct dirent *entry;
 	DIR *dir;
diff --git a/libr/util/t/Makefile b/libr/util/t/Makefile
index ab9bc9f285..9680c4e825 100644
--- a/libr/util/t/Makefile
+++ b/libr/util/t/Makefile
@@ -1,3 +1,5 @@
+include ../../config.mk
+
 BINDEPS=r_util
 
 BINS=test${EXT_EXE}
diff --git a/mk/i386-mingw32-gcc.mk b/mk/i386-mingw32-gcc.mk
index e66b3f559f..60cc0faf3b 100644
--- a/mk/i386-mingw32-gcc.mk
+++ b/mk/i386-mingw32-gcc.mk
@@ -1,3 +1,5 @@
+ifeq (${_INCLUDE_MK_GCC_},)
+_INCLUDE_MK_GCC_=1
 # osx port install mingw32-gcc
 CC=i386-mingw32-gcc
 RANLIB=i386-mingw32-ranlib
@@ -16,3 +18,4 @@ CFLAGS_OPT1=-O1
 CFLAGS_OPT2=-O2
 CFLAGS_OPT3=-O3
 CFLAGS_DEBUG=-g
+endif
diff --git a/mk/i486-mingw32-gcc.mk b/mk/i486-mingw32-gcc.mk
index 7d93c8ba77..e1f6da6aef 100644
--- a/mk/i486-mingw32-gcc.mk
+++ b/mk/i486-mingw32-gcc.mk
@@ -1,3 +1,5 @@
+ifeq (${_INCLUDE_MK_GCC_},)
+_INCLUDE_MK_GCC_=1
 CC=i486-mingw32-gcc
 RANLIB=i486-mingw32-ranlib
 OSTYPE=windows
@@ -15,3 +17,4 @@ CFLAGS_OPT1=-O1
 CFLAGS_OPT2=-O2
 CFLAGS_OPT3=-O3
 CFLAGS_DEBUG=-g
+endif
diff --git a/mk/i586-mingw32msvc-gcc.mk b/mk/i586-mingw32msvc-gcc.mk
index 9aa090b4af..ed6b3119a4 100644
--- a/mk/i586-mingw32msvc-gcc.mk
+++ b/mk/i586-mingw32msvc-gcc.mk
@@ -1,3 +1,5 @@
+ifeq (${_INCLUDE_MK_GCC_},)
+_INCLUDE_MK_GCC_=1
 CC=i586-mingw32msvc-gcc
 RANLIB=i586-mingw32msvc-ranlib
 ONELIB=0
@@ -15,3 +17,4 @@ CFLAGS_OPT1=-O1
 CFLAGS_OPT2=-O2
 CFLAGS_OPT3=-O3
 CFLAGS_DEBUG=-g
+endif
diff --git a/r2-bindings/cxx/Makefile b/r2-bindings/cxx/Makefile
index 4ac3eb9d41..1e72396fbf 100644
--- a/r2-bindings/cxx/Makefile
+++ b/r2-bindings/cxx/Makefile
@@ -13,6 +13,9 @@ LIBS=r_core.so r_asm.so
 #LIBS=r_util.so
 
 mkcxx:
+	@echo c++ bindings has been disabled
+
+mkcxx_real:
 	for a in ${LIBS} ; do \
 		mod=`echo $$a|cut -d . -f 1` ; \
 		valabind --cxx -N Radare -m $$mod --vapidir=../vapi $$mod && \
diff --git a/shlr/Makefile b/shlr/Makefile
index 33b598d51b..bd137b6a50 100644
--- a/shlr/Makefile
+++ b/shlr/Makefile
@@ -1,2 +1,2 @@
-clean:
+clean mrproper:
 	rm -f udis86/*.o udis86/*.d
diff --git a/sys/build.sh b/sys/build.sh
index c0d35afceb..a00e94826a 100755
--- a/sys/build.sh
+++ b/sys/build.sh
@@ -1,5 +1,7 @@
 #!/bin/sh
 
+MAKE_JOBS=1
+
 MAKE=make
 gmake --help >/dev/null 2>&1
 [ $? = 0 ] && MAKE=gmake
@@ -15,8 +17,7 @@ if [ $? = 0 ]; then
 fi
 
 # build
-if [ -f config-user.mk ]; then
-	${MAKE} mrproper > /dev/null 2>&1
-fi
-./configure --prefix=/usr && \
-${MAKE} -j 4
+${MAKE} mrproper > /dev/null 2>&1
+[ "`uname`" = Linux ] && export LDFLAGS="-Wl,--as-needed"
+./configure --prefix=/usr || exit 1
+exec ${MAKE} -j ${MAKE_JOBS}
diff --git a/sys/farm/run.sh b/sys/farm/run.sh
index c870760311..48c804031a 100755
--- a/sys/farm/run.sh
+++ b/sys/farm/run.sh
@@ -4,7 +4,9 @@ cd `dirname $PWD/$0` ; cd ..
 . ./farm/CONFIG
 
 revision() {
-	echo `hg tip|head -n 1|cut -d : -f 2`
+	R=`hg tip 2>/dev/null|head -n 1|cut -d : -f 2`
+	[ -z "$R" ] && R=`git log|head -n1 |cut -d ' ' -f 2`
+	[ -n "$R" ] && echo $R
 }
 
 tstamp() {
diff --git a/sys/mingw32.sh b/sys/mingw32.sh
index bab638e8be..b02e0c2cb9 100755
--- a/sys/mingw32.sh
+++ b/sys/mingw32.sh
@@ -3,20 +3,26 @@
 cd `dirname $PWD/$0` ; cd ..
 #TODO: add support for ccache
 
+# XXX. fails with >1
+MAKE_JOBS=1
+
+OLD_LDFLAGS="${LDFLAGS}"
+unset LDFLAGS
+
 if [ -x /usr/bin/pacman ]; then
 	make clean
 	./configure --without-gmp --with-compiler=i486-mingw32-gcc --with-ostype=windows --host=i486-unknown-windows --without-ssl && \
-	make -j 4 && \
+	make -j ${MAKE_JOBS} && \
 	make w32dist
 elif [ `uname` = Darwin ]; then
 	make clean
 	./configure --without-gmp --with-compiler=i386-mingw32-gcc --with-ostype=windows --host=i386-unknown-windows --without-ssl && \
-	make -j 4 && \
+	make -j ${MAKE_JOBS} && \
 	make w32dist
 elif [ -x /usr/bin/apt-get ]; then
 	make clean
 	./configure --without-gmp --with-compiler=i586-mingw32msvc-gcc  --with-ostype=windows --host=i586-unknown-windows && \
-	make -j 4 && \
+	make -j ${MAKE_JOBS} && \
 	make w32dist
 else
 	echo "ubuntu/debian or archlinux required."