Placing header files in a subdirectory of /usr/include with automake?

Question

If I write a library, and have header files for development included, and have a src/Makefile.am like this:

AM_CFLAGS = -std=c99 -Wall -Werror -Os
lib_LTLIBRARIES = libmylibrary.la
libmylibrary_la_SOURCES = a.c b.c
include_HEADERS = a.h b.h

Everything works nicely. However, a.h and b.h are installed directly under /usr/include (or /usr/local/include). What should I do to get them installed, in a subdirectory specific to my library, e.g. /usr/include/mylibrary?

Answer 1

As well as pkginclude_HEADERS, which you mention, you can also install header files into an arbitrary subdirectory of /usr/include with any name you like, like this:

otherincludedir = $(includedir)/arbitrary_name
otherinclude_HEADERS = a.h b.h

Answer 2

Looks like I asked Stack Overflow too quickly ;)
With a little more searching, I found that if I use pkginclude_HEADERS instead of include_HEADERS, the headers go in /usr/include/[package name].

http://realmike.org/blog/2010/07/18/gnu-automake-by-example/