Re: [Fortran - trunk, committed] Make libf2c a shared library.

[Alexandre Oliva <aoliva at redhat dot com>]

On Sep 30, 2001, Toon Moene <toon@moene.indiv.nluug.nl> wrote:

> 3. As an example, I clearly do not understand why libtool rejects
>    0.5.27 as the version number:

Please replase the version info with 0:0:0, and read the `Library
Versioning' node in the libtool manual.  To quote a little bit of it:

        *_Never_* try to set the interface numbers so that they
        correspond to the release number of your package.

> 4. There are still some (apparently harmless) error messages:

> ../../../../gcc/libf2c/libU77/configure: LIBU77_GETTIMEOFDAY: command
> not found

Err...  This macro was probably defined, or supposed to be defined, in
libf2c/libU77/aclocal.m4, wasn't it?

> *** ./libf2c/libF77/configure.in.orig	Sun Sep 30 20:47:51 2001
> --- ./libf2c/libF77/configure.in	Sun Sep 30 21:44:34 2001
> *************** define([AC_PROG_CC_WORKS],[])
> *** 33,36 ****
> --- 33,39 ----
>   AC_PROG_CC
  
> + LIBTOOL='$(SHELL) ../libtool'
> + AC_SUBST(LIBTOOL)
> + 
>   test "$AR" || AR=ar
>   AC_SUBST(AR)

It has just occurred to me that you might have just defined it
explicitly in Makefile.in, as well.  No big deal, of course :-)

> *************** G77DIR = ../../../gcc/
> *** 58,62 ****
  
>   .c.o:
> ! 	$(CC) -c -DSkip_f2c_Undefs $(ALL_CFLAGS) $<
  
>   OBJS =  VersionU.o gerror_.o perror_.o ierrno_.o itime_.o time_.o \
> --- 54,58 ----
  
>   .c.o:
> ! 	@LIBTOOL@ --mode=compile $(CC) -c -DSkip_f2c_Undefs $(ALL_CFLAGS) $<
  
>   OBJS =  VersionU.o gerror_.o perror_.o ierrno_.o itime_.o time_.o \

This is not right.  The extension of Libtool object file wrappers is
.lo, not .o.  If you --disable-static, you won't ever get a .o, and
this rule will trigger over and over.  Consider a global s/\\.o/.lo/
in `Makefile.in's.

-- 
Alexandre Oliva   Enjoy Guarana', see http://www.ic.unicamp.br/~oliva/
Red Hat GCC Developer                  aoliva@{cygnus.com, redhat.com}
CS PhD student at IC-Unicamp        oliva@{lsd.ic.unicamp.br, gnu.org}
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