Re: automake with fortran

[Rudra Banerjee]

But even then, do src/Makefile.am is happy with any order of the source
file or you have to keep the order manually?

On Thu, 2013-07-25 at 14:11 -0300, Fabrício Zimmerer Murta wrote:
> I implemented GNU Build System on a fortran project I work with..
> 
> I've created a 'Makefile.am' inside src/ (src/Makefile.am) thus my 
> PACKAGE_ROOT/Makefile.am has a 'SUBDIRS=src'.
> 
> This will make 'GNU Make' to chdir into src/ dir and the created modules 
> works just fine. I think this 'subdirs' and sub-makefiles-am are the way gnu 
> build system is intended to work.
> 
> For example, for distributed 'datadir' files (who get into PREFIX/share), I 
> have Makefile.am's into each directory, the inside Makefile.am's actually 
> determines what is installed to localstatedir, datadir, as fitting.
> 
> I hope this helps.
> 
> - fabrício
> 
> -----Original Message----- 
> From: Rudra Banerjee
> Sent: Thursday, July 25, 2013 1:53 PM
> To: address@hidden
> Subject: automake with fortran
> 
> Hello friends,
> I am facing a small problem when trying to build my code with autotools.
> My file structure is:
> $ tree
> .
> |-- configure.ac
> |-- Makefile.am
> `-- src
>     |-- constants.f90
>     |-- environment.f90
>     |-- init.f90
>     |-- main.f90
>     `-- util.f90
> (deleted possibly unnecessary lines)
> and my Makefile.am is:
> #SUBDIRS= help
> bin_PROGRAMS = scasr
> scasr_SOURCES = \
>                 src/constants.f90  src/environment.f90  src/util.f90 \
> src/init.f90 src/main.f90
> scasr_LDADD =
> EXTRA_DIST= autogen.sh
> CLEANFILES =*.mod
> 
> The problem is src/(*.f90)'s except main.f90 are module. Hence, if I
> have to write the makefile by hand, I will have:
> constants.o : constants.f90
> environment.o : environment.f90
> init.o : init.f90 util.o constants.o
> main.o : main.f90 init.o constants.o environment.o
> util.o : util.f90 constants.o
> 
> so, for Makefile.am, I have to make a strict order of files in
> scasr_SOURCES. i.e.
> with the sources as :
> scasr_SOURCES = \
>                 src/constants.f90  src/environment.f90  src/util.f90 \
> src/init.f90 src/main.f90
> 
> It compiles fine.
> But if I have as:
> scasr_SOURCES = src/main.f90 \
>                 src/constants.f90  src/environment.f90  src/util.f90 \
> src/init.f90
> I get error:
> ake  all-am
> make[1]: Entering directory `/home/rudra/Programs/ScASR/trunk'
> gfortran  -g -O2 -c -o src/main.o src/main.f90
> src/main.f90:7.4:
> 
> use mget_env
>     1
> Fatal Error: Can't open module file 'mget_env.mod' for reading at (1):
> No such file or directory
> make[1]: *** [src/main.o] Error 1
> 
> Is there any way out so that make/configure will check the dependency by
> itself?
>