use the CORRECT file name! ;-)

lib/Makefile.am

@@ -10,7 +10,7 @@ EXTRA_DIST = getdate.y Makefile.b32 Makefile.b32.resp Makefile.m32	    \
        config.h.in ca-bundle.crt README.encoding README.memoryleak	    \
        README.ares makefile.dj config.dj				    \
        libcurl.framework.make libcurl.plist libcurl.rc \
-       config-amiga.h amigaos.c amigaos.h makefile.amiga
+       config-amigaos.h amigaos.c amigaos.h makefile.amiga
 
 lib_LTLIBRARIES = libcurl.la
 

src/Makefile.am

@@ -39,7 +39,7 @@ EXTRA_DIST = mkhelp.pl curlmsg.msg makefile.dj \
 	macos/MACINSTALL.TXT \
 	macos/src/curl_GUSIConfig.cpp \
 	macos/src/macos_main.cpp curlmsg.h curlmsg.sdl curlmsg_vms.h \
-	config-amiga.h makefile.amiga
+	config-amigaos.h makefile.amiga
 
 MANPAGE=$(top_srcdir)/docs/curl.1
 README=$(top_srcdir)/docs/MANUAL