Hello Christopher, * Christopher Hulbert wrote on Sun, Apr 15, 2007 at 03:58:10PM CEST: > On 3/26/07, Ralf Wildenhues <[EMAIL PROTECTED]> wrote: >> * Christopher Hulbert wrote on Fri, Mar 23, 2007 at 02:27:25AM CET: >> > I have a library that has an optional fortran interface. I'd rather >> > not separate this into two different libraries, but on systems without >> > a fortran compiler, FCLD is empty and creating a libtool archive >> > fails. Is there another way around this. My Makefile.am is something >> > like [...] > Sorry it took so long to reply. No, automake gives an error. It also > gives an error trying to redefine FCLINK and FC. > > [EMAIL PROTECTED] automake_error]$ cat Makefile.am && automake > AUTOMAKE_OPTIONS = foreign no-dependencies > > lib_LTLIBRARIES = liba.la > liba_la_SOURCES = a_c.c > > if ENABLE_FORTRAN > liba_la_SOURCES += a_f.f90 > else > FCLD=$(CCLD) > endif > automake: FCLD was already defined in condition !ENABLE_FORTRAN, which > is included in condition TRUE ... > Makefile.am:9: ... `FCLD' previously defined here
Try this: # Makefile.am lib_LTLIBRARIES = liba.la liba_la_SOURCES = a_c.c if ENABLE_FORTRAN liba_la_SOURCES += a_f.f90 endif # configure.ac # ... AC_PROG_CC AC_PROG_FC AC_PROG_LIBTOOL AC_ARG_ENABLE([fortran], ... ) AM_CONDITIONAL([ENABLE_FORTRAN], [$enable_fortran]) if test "$enable_fortran" = yes; then FCLD='$(FC)' else FCLD='$(CCLD)' fi AC_SUBST(FCLD) It uses undocumented internals (CCLD and FCLD), but I think this case is rather benign that way, CCLD is mentioned in the manual anyway. Hope that helps. Cheers, Ralf
