Spectrum analyzers are neat, software spectrum analyzers are not quite as neat but still useful. Spek (spɛk/, ‘bacon’ in Dutch) is a great library that provides a fast and accurate method to generate spectrograms. For one reason or another, it’s missing from recent repositories for RHEL derivatives, in this case Fedora 22. No worries, you can find the source on GitHub here.
Maybe you’ve broken your legs and are desperate for reading material, or have some neurological condition which compels you to actually read the instructions and attempt to run the autogen script and get a series of nasty error messages like
autoreconf: Entering directory `.'
autoreconf: running: intltoolize --automake --copy --force
autoreconf: running: aclocal --force
configure.ac:40: warning: macro 'AM_OPTIONS_WXCONFIG' not found in library
configure.ac:42: warning: macro 'AM_PATH_WXCONFIG' not found in library
autoreconf: configure.ac: tracing
autoreconf: configure.ac: AM_GNU_GETTEXT_VERSION is used, but not AM_GNU_GETTEXT
autoreconf: configure.ac: not using Libtool
autoreconf: running: /usr/bin/autoconf --force
configure.ac:40: error: possibly undefined macro: AM_OPTIONS_WXCONFIG
If this token and others are legitimate, please use m4_pattern_allow.
See the Autoconf documentation.
configure.ac:42: error: possibly undefined macro: AM_PATH_WXCONFIG
autoreconf: /usr/bin/autoconf failed with exit status: 1
First of all, if you’ve gotten this far you obviously have autoconf, automake, intltool, etc. already installed. Good job. What you are missing are a few of the pkg-config dependencies for GTK, which will be confusing because on Fedora at least these packages will be under wxGTK + wxGTK-devel, so to fix this:
sudo dnf install wxGTK wxGTK-devel
Now clean up your build dir with GIT and ./autogen.sh again.