Initial preparations for multi-os support

Makefile.am

@@ -8,6 +8,7 @@ lib_LTLIBRARIES = libburn/libburn.la libisofs/libisofs.la
 # Build libraries
 libburn_libburn_la_LDFLAGS = \
 	-version-info $(LT_CURRENT):$(LT_REVISION):$(LT_AGE)
+libburn_libburn_la_LIBADD = $(LIBBURN_ARCH_LIBS) $(THREAD_LIBS)
 libburn_libburn_la_SOURCES = \
 	libburn/async.c \
 	libburn/async.h \
@@ -42,7 +43,7 @@ libburn_libburn_la_SOURCES = \
 	libburn/sbc.h \
 	libburn/sector.c \
 	libburn/sector.h \
-	libburn/sg.c \
+	libburn/sg-@ARCH@.c \
 	libburn/sg.h \
 	libburn/source.h \
 	libburn/source.c \

acinclude.m4

@@ -1,18 +1,3 @@
-dnl Function to link an architecture specific file
-dnl LINK_ARCH_SRC(source_dir, arch, source_file)
-AC_DEFUN([COPY_ARCH_SRC],
-[
-  echo "copying $1/$2/$3 -> $1/$3"
-  old="$srcdir/$1/$2/$3"
-  new="$srcdir/$1/$3"
-  cat >$new <<__EOF__
-/* WARNING:  This file was automatically generated!
- * Original: $old
- */
-__EOF__
-  cat >>$new <$old
-])
-
 AC_DEFUN([TARGET_SHIZZLE],
 [
   ARCH=""
@@ -22,6 +7,11 @@ AC_DEFUN([TARGET_SHIZZLE],
   case $target in
     *-*-linux*)
       ARCH=linux
+      LIBBURN_ARCH_LIBS=
+      ;;
+    *-*-freebsd*)
+      ARCH=freebsd
+      LIBBURN_ARCH_LIBS=-lcam
       ;;
     *)
       AC_ERROR([You are attempting to compile for an unsupported platform])
@@ -29,9 +19,4 @@ AC_DEFUN([TARGET_SHIZZLE],
   esac
 
   AC_MSG_RESULT([$ARCH])
-
-  # this doesn't actually do anything yet.. but it will someday when we port
-  # libburn
-
-  #COPY_ARCH_SRC(libburn, $ARCH, transport.c)
 ])

configure.ac

@@ -73,6 +73,8 @@ THREAD_LIBS=-lpthread
 AC_SUBST(THREAD_LIBS)
 
 TARGET_SHIZZLE
+AC_SUBST(ARCH)
+AC_SUBST(LIBBURN_ARCH_LIBS)
 
 dnl Add compiler-specific flags