>>> "Dmitry" == Dmitry Mikhin <[EMAIL PROTECTED]> writes:
Dmitry> I'm trying to use autotools for a project that includes
Dmitry> Fortran-90 files (extensions f90 for preprocessed files
Dmitry> and F90 for source files).
[...]
Dmitry> make distclean
Dmitry> tries to compile a file distclean-compile, fails, and aborts the make.
Dmitry> The distclean-compile rule in 'Makefile.in' is:
Dmitry> distclean-compile:
Dmitry> -rm -f *.tab.c
Dmitry> $(F77COMPILE) -c -o $@ `test -f $< || echo '$(srcdir)/'`$<
I've looked into this and I'm horrified. I wonder how this
mailing list hasn't been flooded with bug reports like yours...
Your project uses file with `.f90' extension. This extension is
listed in the extensions for Fortran77 (no idea why, IIRC someone
already complained about this a few weeks ago). Therefore
Automake injects the rules for .f90->.{o,lo,obj} into Makefile.in.
These rules are generated by evaluating depend2.am as follow:
| .f90.o:
| if FALSE
| source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
| depfile='$(DEPDIR)/$*.Po' tmpdepfile='$(DEPDIR)/$*.TPo' @AMDEPBACKSLASH@
| $(noDEPMODE) $(depcomp) @AMDEPBACKSLASH@
| endif FALSE
| $(F77COMPILE) -c -o $@ `test -f $< || echo '$(srcdir)/'`$<
|
| .f90.obj:
| if FALSE
| source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
| depfile='$(DEPDIR)/$*.Po' tmpdepfile='$(DEPDIR)/$*.TPo' @AMDEPBACKSLASH@
| $(noDEPMODE) $(depcomp) @AMDEPBACKSLASH@
| endif FALSE
| $(F77COMPILE) -c -o $@ `cygpath -w $<`
|
| if FALSE
| .f90.lo:
| if FALSE
| source='$<' object='$@' libtool=yes @AMDEPBACKSLASH@
| depfile='$(DEPDIR)/$*.Plo' tmpdepfile='$(DEPDIR)/$*.TPlo' @AMDEPBACKSLAS
| H@
| $(noDEPMODE) $(depcomp) @AMDEPBACKSLASH@
| endif FALSE
| $(LTF77COMPILE) -c -o $@ `test -f $< || echo '$(srcdir)/'`$<
| endif FALSE
This text then split in paragraphs by make_paragraphs as follow:
| .f90.o:
-
| if FALSE
-
| source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
| depfile='$(DEPDIR)/$*.Po' tmpdepfile='$(DEPDIR)/$*.TPo' @AMDEPBACKSLASH@
| $(noDEPMODE) $(depcomp) @AMDEPBACKSLASH@
-
| endif FALSE
-
| $(F77COMPILE) -c -o $@ `test -f $< || echo '$(srcdir)/'`$<
-
| .f90.obj:
-
| if FALSE
-
| source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
| depfile='$(DEPDIR)/$*.Po' tmpdepfile='$(DEPDIR)/$*.TPo' @AMDEPBACKSLASH@
| $(noDEPMODE) $(depcomp) @AMDEPBACKSLASH@
-
| endif FALSE
-
| $(F77COMPILE) -c -o $@ `cygpath -w $<`
-
| if FALSE
-
| .f90.lo:
-
| if FALSE
-
| source='$<' object='$@' libtool=yes @AMDEPBACKSLASH@
| depfile='$(DEPDIR)/$*.Plo' tmpdepfile='$(DEPDIR)/$*.TPlo' @AMDEPBACKSLAS
| H@
| $(noDEPMODE) $(depcomp) @AMDEPBACKSLASH@
-
| endif FALSE
-
| $(LTF77COMPILE) -c -o $@ `test -f $< || echo '$(srcdir)/'`$<
-
| endif FALSE
And finally file_contents_internal removes unecessary paragaphs.
The removed paragraphs are those enclosed in `if
FALSE'/`endif', and also `.f90.o:' because you have already
defined this rule. The remaining text is
| $(F77COMPILE) -c -o $@ `test -f $< || echo '$(srcdir)/'`$<
|
| .f90.obj:
| $(F77COMPILE) -c -o $@ `cygpath -w $<`
Blah!
I think the idea behind make_paragraphs is that each rule should be
in a paragraph. However this doesn't work if `if'/`else'/`endif' are
handled on a paragraph basis but yet allowed _in_ a rule.
IMHO, Automake should be changed to work on a line by line basis
(i.e. not paragraph) and let file_contents_internal accumulate
the lines for a rule. Other opinions?
[...]
--
Alexandre Duret-Lutz
