Hi, With AC_CONFIG_HEADERS(config.h subdir/myconfig.h) in configure.ac, automake generates a target to build config.h.in with autoheader in Makefile.in (as expected), but it also generates a target in subdir/Makefile.in to build subdir/myconfig.h.in which also runs autoheader. This last target does not create subdir/myconfig.h as autoheader only generates config.h, so this seems wrong.
I could not find much in the documentation of automake about what is supposed to happen, but in the source of lib/am/remake-hdr.am I read: ## Only the first file of AC_CONFIG_HEADERS is assumed to be generated ## by autoheader. So I understand that it is not the intention to have more then one header file to trigger autoheader. This only seems to happen when the second header file is in a subdir. With AC_CONFIG_HEADERS(config.h myconfig.h) things work as expected, so I guess this might be a bug that gets triggered only with header files in subdirs. I have attached a patch that fixes this problem for me. Kind regards, Hib Eris
0001-Do-not-call-autoheader-with-header-files-in-subdirs.patch
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