--- Begin Message ---
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Subject: |
Doc problem |
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Date: |
Mon, 08 Nov 2004 13:19:03 +0100 |
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User-agent: |
Mozilla Thunderbird 0.8 (X11/20041104) |
Hello,
I had a problem to pass a option from configure to my makefile. I have
followed the doc about AM_CONDITIONAL with this scheme:
if COND_OPT
MAYBE_OPT = opt
endif
SUBDIRS = src $(MAYBE_OPT)
but when I ran automake i have an error about the variable MAYBE_OPT
(MAYBE_OPT is undefined). To resolve that we have added this code:
if COND_OPT
MAYBE_OPT = opt
else
MAYBE_OPT =
endif
SUBDIRS = src $(MAYBE_OPT)
And all seems to be ok. It's not a big problem but when we follow the
documentation it doesnot work. So this is a patch for the documentation.
But maybe i am wrong and the documentation explains in detail this
behaviour.
Cheers
Cedric
here the whole original paragraph from documentation:
=================================================================================
Conditional subdirectories with AM_CONDITIONAL
configure should output the Makefile for each directory and define a
condition into which opt/ should be built.
...
AM_CONDITIONAL([COND_OPT], [test "$want_opt" = yes])
AC_CONFIG_FILES([Makefile src/Makefile opt/Makefile])
...
Then SUBDIRS can be defined in the top-level Makefile.am as follows.
if COND_OPT
MAYBE_OPT = opt
endif
SUBDIRS = src $(MAYBE_OPT)
As you can see, running make will rightly recurse into src/ and maybe opt/.
As you can't see, running make dist will recurse into both src/ and opt/
directories because make dist, unlike make all, doesn't use the SUBDIRS
variable. It uses the DIST_SUBDIRS variable.
In this case Automake will define DIST_SUBDIRS = src opt automatically
because it knows that MAYBE_OPT can contain opt in some condition.
? patch
Index: doc/automake.texi
===================================================================
RCS file: /cvs/automake/automake/doc/automake.texi,v
retrieving revision 1.65
diff -r1.65 automake.texi
2362a2363,2364
> else
> MAYBE_OPT =
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