Re: Cannot build gnuplot4.5 with lua terminal on cygwin-1.7 (was making gnuplot-tikz.lua.exe on cygwin-1.7)

[Ethan M. <merritt@u.washington.edu>]

On Sunday 29 November 2009, Tatsuro MATSUOKA wrote:
> Hello
> 
> Sorry for my duplicated post.
> 
> Does anyone explain the behavior below?
> 
> Regards
> 
> Tatsuro
> 
> 
> --- Tatsuro MATSUOKA wrote:
> 
> > Sorry for my successive post.
> > 
> > I have looked at the config.log:
> > 
> > configure:8273: checking for LUA
> > configure:8281: $PKG_CONFIG --exists --print-errors "lua"
> > configure:8284: $? = 0
> > configure:8299: $PKG_CONFIG --exists --print-errors "lua"
> > configure:8302: $? = 0
> > configure:8340: result: yes
> > configure:8353: checking for library containing luaL_openlibs
> > configure:8384: gcc-4 -o conftest.exe -O3 -fomit-frame-pointer   -I/usr/include  -L/usr/lib
> > conftest.c
> >  -llua -lm   >&5
> > configure:8384: $? = 0
> > configure:8401: result: none required
> > configure:8411: checking lua.h usability
> > configure:8411: gcc-4 -c -O3 -fomit-frame-pointer   -I/usr/include conftest.c >&5
> > configure:8411: $? = 0
> > configure:8411: result: yes
> > configure:8411: checking lua.h presence
> > configure:8411: gcc-4 -E   -I/usr/include conftest.c
> > configure:8411: $? = 0
> > configure:8411: result: yes
> > configure:8411: checking for lua.h
> > configure:8411: result: yes
> > 
> > *****************
> > configure:8384: gcc-4 -o conftest.exe -O3 -fomit-frame-pointer   -I/usr/include  -L/usr/lib
> > conftest.c
> >  -llua -lm   >&5
> > configure:8384: $? = 0
> > configure:8401: result: none required
> > ***************
> >  $? = 0 but result: none required
> > ????
> > What is caused? I'm now in confusion.

I cannot help with cygwin.
But the message above is not an error. I get the same report
when building successfully under linux.  

configure:12416: checking for LUA
configure:12483: result: yes
configure:12442: $PKG_CONFIG --exists --print-errors "lua"
configure:12445: $? = 0
configure:12483: result: yes
configure:12496: checking for library containing luaL_openlibs
configure:12537: gcc -o conftest -g -O2   -I/usr/local/include   -L/usr/X11R6/lib  conftest.c -lm  -llua -lm   >&5
configure:12544: $? = 0
configure:12575: result: none required
configure:12601: checking lua.h usability
configure:12618: gcc -c -g -O2   -I/usr/local/include  conftest.c >&5
configure:12625: $? = 0
configure:12639: result: yes

I think this means that the test program created by the configure
script compiles and links correctly without requiring any extra libraries.

I do notice a difference in the two configure logs, however.
It seems from your log that the test for lua.h comes first, and then lua libraries second.
My log shows first a test for the libraries and then a test for lua.h
So the configure script may be different for some reason.


	Ethan