Corrected to fix "make dist".

Makefile.am

@@ -1,6 +1,6 @@
 lib_LTLIBRARIES = libphysfs.la
 
-SUBDIRS = platform archivers zlib114 . test
+SUBDIRS = platform archivers zlib114 . test extras
 
 libphysfsincludedir = $(includedir)
 libphysfsinclude_HEADERS =	\

configure.in

@@ -210,4 +210,6 @@ platform/Makefile
 archivers/Makefile
 test/Makefile
 zlib114/Makefile
+extras/Makefile
 ])
+

platform/Makefile.am

@@ -3,5 +3,12 @@ noinst_LTLIBRARIES = libplatform.la
 INCLUDES = -I$(top_srcdir)
 
 libplatform_la_SOURCES =	\
-	unix.c
+	unix.c                  \
+	beos.cpp
+
+EXTRA_DIST =      \
+	skeleton.c    \
+	macclassic.c  \
+	win32.c
+