Re: Support for gnu-pascal

[Martin Kalbfuß]

Thanks a lot. It works now. A native support GNU-Pascal would be fantastic.


> -----Ursprüngliche Nachricht-----
> Von: "Ralf Wildenhues" <address@hidden>
> Gesendet: 15.09.09 06:12:29
> An: Martin Kalbfuß <address@hidden>
> CC: address@hidden
> Betreff: Re: Support for gnu-pascal


> Hello Martin,
> 
> * Martin Kalbfuß wrote on Tue, Sep 15, 2009 at 03:45:26AM CEST:
> > I try to build a simple hello world program written in pascal(gpc).
> > There's no AC_PROG_GPC or something. So I have to do it on my own. gpc
> > supports all gcc options + some pascal specific options. hat I have so
> > far:
> 
> Automake doesn't support Pascal OOTB yet, but if someone were motivated
> to do so, and this language is used more than just occasionally, then we
> can add it.
> 
> That said, you don't need to wait till then:
> 
> > confgure.ac:
> > ############
> > 
> > #                                               -*- Autoconf -*-
> > # Process this file with autoconf to produce a configure script.
> > 
> > AC_PREREQ([2.64])
> > AC_INIT([PALLEGRO], [0.1], address@hidden)
> > AC_CONFIG_SRCDIR([pallegro.pas])
> > AM_INIT_AUTOMAKE([-Wall -Werror foreign])
> > 
> > AC_PROG_CC
> > AC_PATH_TOOL([CC], [gpc])
> > if test -z "$CC"; then
> 
> I'd make these two lines:
>   AC_PATH_TOOL([GPC], [gpc])
>   if test -z "$GPC"; then
> 
> so that you have both $CC (the C compiler) and $GPC (the Pascal
> compiler) available.
> 
> >    AC_MSG_ERROR([cannot find gpc.])
> > fi
> > 
> > AC_CONFIG_FILES([Makefile])
> > AC_OUTPUT
> > 
> > 
> > Makefile.am:
> > ############
> > 
> > .pas.o:
> >     $(CC) $(CFLAGS) -c -o $@ $<
> 
> Consequently, I'd make this line
>       $(GPC) $(AM_GPCFLAGS) $(GPCFLAGS) -c -o $@ $<
> 
> where GPCFLAGS is for the user (the person running ./configure)
> and AM_GPCFLAGS is for the developer.
> 
> > bin_PROGRAMS = \
> >     pallegro
> > 
> > pallegro_SOURCES = \
> >     pallegro.pas
> 
> > Result of calling make:
> > #######################
> > 
> > /usr/bin/gpc -g -O2 -c -o pallegro.o pallegro.pas
> > pallegro.o  
> > /bin/bash: pallegro.o: Kommando nicht gefunden.
> > make: *** [pallegro] Fehler 127
> 
> This is because $(LINK) is not defined, because automake fails to see
> any compiled and linked sources in this Makefile.am.  You can work
> around it with something like this:
> 
> # Ensure $(LINK) is defined: let automake think we also have C sources.
> EXTRA_pallegro_SOURCES = \
>       force_c_compiler_defaults.c
> # Override the linker to be gpc.
> CCLD = $(GPC)
> 
> Hope that helps.
> 
> Cheers,
> Ralf
> 


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