Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner@cygwin.com Mail-Followup-To: cygwin@cygwin.com Delivered-To: mailing list cygwin@cygwin.com Message-ID: <3DD048DD.8000303@alum.mit.edu> Date: Mon, 11 Nov 2002 19:18:37 -0500 From: "Steven G. Johnson" User-Agent: Mozilla/5.0 (Macintosh; U; PPC Mac OS X; en-US; rv:1.1) Gecko/20020826 X-Accept-Language: en-us, en MIME-Version: 1.0 Newsgroups: gmane.comp.sysutils.autoconf.general,gmane.os.cygwin To: ai26@sternwarte.uni-erlangen.de CC: cygwin@cygwin.com Subject: Re: problem with simple autoconf for fortran References: Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Michael Lemke wrote: > I have these three files (+ the stuff created by autoconf etc): > x.F > [...] > $ cat configure.ac > dnl Process this file with autoconf to produce a configure script. > AC_INIT(x,1.0) > AM_INIT_AUTOMAKE > > dnl Checks for programs. > AC_PROG_MAKE_SET > AC_PROG_F77 > [...] > That went all fine. Then I do a make: > $ make > g77 -DPACKAGE_NAME=\"x\" -DPACKAGE_TARNAME=\"x\" -DPACKAGE_VERSION=\"1.0\" - > DPACKAGE_STRING=\"x\ 1.0\" -DPACKAGE_BUGREPORT=\"\" -DPACKAGE=\"x\" -DVERSION= > \"1.0\" -I. -I. @CPPFLAGS@ -g -O2 -c -o x.o `test -f 'x.F' || echo './'`x.F > g77: cannot specify -o with -c or -S and multiple compilations > make: *** [x.o] Error 1 > > Why is there a @CPPFLAGS@ ? Isn't that supposed to be replaced by some real > flags? Did I miss something in my configure.ac/Makefile.am? Try putting AC_PROG_CPP in your configure.ac. When your file is named .F (instead of .f), automake expects that the Fortran compiler is preprocessing it with the C preprocessor and understands CPPFLAGS. However, CPPFLAGS are only set by the AC_PROG_CC/AC_PROG_CPP macros. Steven -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Bug reporting: http://cygwin.com/bugs.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/