Re: LuaLanes and Snow Leopard OSX 10.6

[Stefan Marr <lua@...>]

Hi:

On 05 Oct 2009, at 21:09, Asko Kauppi wrote:
> Your problems should be due to having two separate copies of Lua  
> core in the system.  Try to make sure lua the command line  
> executable is really dynamically linked to the lua shared library  
> that extension modules use.
>
> There may also be other ways to guarantee this singularity of the  
> Lua core. If you have two cores and you do multiple threads, OS X  
> gets confused like you showed.
Well, looks like OS X tries to out-smart me...

After getting ride of all my different lua libs and executables I got  
it work.

I used adapted Makefiles as follows below.

Thanks and best regards
Stefan

=== modified file 'Makefile'
--- Makefile	2009-02-27 15:35:13 +0000
+++ Makefile	2009-10-05 21:59:46 +0000
@@ -43,7 +43,7 @@
 # What to install.
 TO_BIN= lua luac
 TO_INC= lua.h luaconf.h lualib.h lauxlib.h ../etc/lua.hpp
-TO_LIB= liblua.a
+TO_LIB= liblua.5.1.4.dylib
 TO_MAN= lua.1 luac.1

 # Lua version and release.
@@ -64,6 +64,7 @@
 	cd src && $(INSTALL_DATA) $(TO_INC) $(INSTALL_INC)
 	cd src && $(INSTALL_DATA) $(TO_LIB) $(INSTALL_LIB)
 	cd doc && $(INSTALL_DATA) $(TO_MAN) $(INSTALL_MAN)
+	sudo ln -s $(INSTALL_LIB)/liblua.5.1.4.dylib $(INSTALL_LIB)/liblua. 
5.1.dylib

 ranlib:
 	cd src && cd $(INSTALL_LIB) && $(RANLIB) $(TO_LIB)

=== modified file 'src/Makefile'
--- src/Makefile	2009-02-27 15:35:13 +0000
+++ src/Makefile	2009-10-05 21:44:27 +0000
@@ -22,7 +22,7 @@

 PLATS= aix ansi bsd freebsd generic linux macosx mingw posix solaris

-LUA_A=	liblua.a
+LUA_A=	liblua.5.1.4.dylib
 CORE_O=	lapi.o lcode.o ldebug.o ldo.o ldump.o lfunc.o lgc.o llex.o  
lmem.o \
 	lobject.o lopcodes.o lparser.o lstate.o lstring.o ltable.o ltm.o  \
 	lundump.o lvm.o lzio.o
@@ -48,11 +48,17 @@
 a:	$(ALL_A)

 $(LUA_A): $(CORE_O) $(LIB_O)
-	$(AR) $@ $?
-	$(RANLIB) $@
+	$(CC) -dynamiclib -install_name /usr/local/lib/liblua.5.1.dylib \
+		-compatibility_version 5.1 -current_version 5.1.4 \
+		-o liblua.5.1.4.dylib $^

 $(LUA_T): $(LUA_O) $(LUA_A)
-	$(CC) -o $@ $(MYLDFLAGS) $(LUA_O) $(LUA_A) $(LIBS)
+	$(CC) -fno-common -DLUA_USE_LINUX -lreadline -L. -llua.5.1.4 lua.c - 
o lua

 $(LUAC_T): $(LUAC_O) $(LUA_A)
 	$(CC) -o $@ $(MYLDFLAGS) $(LUAC_O) $(LUA_A) $(LIBS)
@@ -99,7 +105,7 @@
 	$(MAKE) all MYCFLAGS=-DLUA_USE_LINUX MYLIBS="-Wl,-E -ldl -lreadline  
-lhistory -lncurses"

 macosx:
-	$(MAKE) all MYCFLAGS=-DLUA_USE_LINUX MYLIBS="-lreadline"
+	$(MAKE) all MYCFLAGS="-fno-common -DLUA_USE_LINUX" MYLIBS="-lreadline"
 # use this on Mac OS X 10.3-
 #	$(MAKE) all MYCFLAGS=-DLUA_USE_MACOSX









> For users of Lua via the fink distribution, make sure your package  
> is >= 5.1.1-14. That has the necessary changes. Unstable has a  
> recent one but stable still lags behind in 5.1.1-4 or so. Lanes does  
> not work fine with that.
>
> - Asko
>
>
>
> Stefan Marr kirjoitti 5.10.2009 kello 14:03:
>
> > Hi Asko,
> > Hi list:
> >
> > I tried to experiment with LuaLanes, but have some problems on my  
> > Snow Leopard installation.
> >
> > Every time I try to run one of the test I get an malloc error like  
> > this:
> >
> > lanes-2.0.3$ LUA_CPATH=./src/?.so LUA_PATH="src/?.lua;./ 
> > tests/?.lua" lua tests/recursive.lua
> > depth: 0 1 2 3 4 5 6 7 8 9 10 11
> > lua(61739,0x7fff71085be0) malloc: *** error for object 0x1000ad1a0:  
> > pointer being freed was not allocated
> > *** set a breakpoint in malloc_error_break to debug
> >
> >
> > I tried to use luarocks from MacPorts to install lanes, but there  
> > is no rock spec. for the latest version, and for the 2.0 version,  
> > the download is gone, so it just failed installing.
> >
> > Furthermore, I followed the hints in the README to compile Lua  
> > with  LUA_USE_DLOPEN and LUA_USE_POSIX as well as using a dylib for  
> > the core and library code, as described.
> > However, I am still ending up with the error given above.
> >
> > Any thoughts how this could be fixed?
> >
> > Many thanks and best regards
> > Stefan
> >
> > BTW: On an Ubuntu, it works fine...
> >
> >
> >
> >
> > --
> > Stefan Marr
> > Software Languages Lab
> > Former Programming Technology Lab
> > Vrije Universiteit Brussel
> > Pleinlaan 2 / B-1050 Brussels / Belgium
> > http://prog.vub.ac.be/~smarr
> > Phone: +32 2 629 3956
> > Fax:   +32 2 629 3525

--
Stefan Marr
Software Languages Lab
Former Programming Technology Lab
Vrije Universiteit Brussel
Pleinlaan 2 / B-1050 Brussels / Belgium
http://prog.vub.ac.be/~smarr
Phone: +32 2 629 3956
Fax:   +32 2 629 3525