I am using ./autogen.sh --prefix=/usr/ to build a c project and all files created by the configuration process (and later the compiling and linking steps) are located in my source folder.
I would like to tell to use a different folder (say ./build like cmake projects usually do).
How can I do that?
Is there a command line parameter? Should I change a file?
Note: autogen.sh calls
gnome-autogen.sh
edit
Trying cd build && ../autogen.sh --prefix=/usr/ fails with the error:
/usr/bin/gnome-autogen.sh: ./configure: not found
This isn't possible as far as I know. autogen is a strange beast; the files it creates are necessary to build the project (configure and Makefile.am).
That means autogen is more part of the "unpack sources" than the "compile source code into product" step. After you have run autogen, you can run configure in the build directory to get a version of all files necessary to drive the build (config.h, Makefile, ...) for your specific architecture:
./autogen.sh
mkdir build
cd build
../configure --prefix=/usr
See Compiling For Multiple Architectures in the file INSTALL.