autotools: no rule to make target all
- by Raffo
I'm trying to port an application I'm developing to autotools. I'm not an expert in writing makefiles and it's a requisite for me to be able to use autotools.
In particular, the structure of the project is the following:
..
../src/Main.cpp
../src/foo/
../src/foo/x.cpp
../src/foo/y.cpp
../src/foo/A/k.cpp
../src/foo/A/Makefile.am
../src/foo/Makefile.am
../src/bar/
../src/bar/z.cpp
../src/bar/w.cpp
../src/bar/Makefile.am
../inc/foo/
../inc/bar/
../inc/foo/A
../configure.in
../Makefile.am
The root folder of the project contains a "src" folder containing the main of the program AND a number of subfolders containing the other sources of the program. The root of the project also contains an "inc" folder containing the .h files that are nothing more than the definitions of the classes in "src", thus "inc" reflects the structure of "src".
I have written the following configure.in in the root:
AC_INIT([PNAME], [1.0])
AC_CONFIG_SRCDIR([src/Main.cpp])
AC_CONFIG_HEADER([config.h])
AC_PROG_CXX
AC_PROG_CC
AC_PROG_LIBTOOL
AM_INIT_AUTOMAKE([foreign])
AC_CONFIG_FILES([Makefile
src/Makefile
src/foo/Makefile
src/foo/A/Makefile
src/bar/Makefile])
AC_OUTPUT
And the following is ../Makefile.am
SUBDIRS = src
and then in ../src where the main of the project is contained:
bin_PROGRAMS = pname
gsi_SOURCES = Main.cpp
AM_CPPFLAGS = -I../../inc/foo\
-I../../inc/foo/A \
-I../../inc/bar/
pname_LDADD= foo/libfoo.a bar/libbar.a
SUBDIRS = foo bar
and in ../src/foo
noinst_LIBRARIES = libfoo.a
libfoo_a_SOURCES = \
x.cpp \
y.cpp
AM_CPPFLAGS = \
-I../../inc/foo \
-I../../inc/foo/A \
-I../../inc/bar
And the analogous in src/bar.
The problem is that after calling automake and autoconf, when calling "make" the compilation fails. In particular, the program enters the directory src, then foo and creates libfoo.a, but the same fail for libbar.a, with the following error:
Making all in bar
make[3]: Entering directory `/user/Raffo/project/src/bar'
make[3]: *** No rule to make target `all'. Stop.
I have read the autotools documentation, but I'm not able to find a similar example to the one I am working on. Unfortunately I can't change the directory structure as this is a fixed requisite of the project I'm working on.
I don't know if you can help me or give me any hint, but maybe you can guess the error or give me a link to a similar structured example.
Thank you.
