allow-disabling-kernel-module-compilation-20010705

[openafs.git] / configure.in

diff --git a/configure.in b/configure.in
index d0fd20c..b5a320f 100644 (file)
--- a/configure.in
+++ b/configure.in
@@ -3,7 +3,7 @@ AM_INIT_AUTOMAKE(openafs,devel)
 AC_CANONICAL_HOST
 AC_CONFIG_HEADER(src/config/afsconfig.h)
 
-#BOZO_SAVE_CORES BOS_RESTRICTED_MODE BOS_NEW_CONFIG pam sia  BITMAP_LATER FAST_RESTART
+#BOZO_SAVE_CORES BOS_RESTRICTED_MODE BOS_NEW_CONFIG pam sia
 AC_ARG_WITH(afs-sysname,
 [  --with-afs-sysname=sys    use sys for the afs sysname]
 )
@@ -17,9 +17,16 @@ AC_ARG_ENABLE( bos-restricted-mode,
 [  --enable-bos-restricted-mode        enable bosserver restricted mode which disables certain bosserver functionality],, enable_bos_restricted_mode="no")
 AC_ARG_ENABLE( namei-fileserver,
 [  --enable-namei-fileserver           force compilation of namei fileserver in preference to inode fileserver],, enable_namei_fileserver="no")
+AC_ARG_ENABLE( fast-restart,
+[  --enable-fast-restart               enable fast startup of file server without salvaging],, enable_fast_restart="no")
+AC_ARG_ENABLE( bitmap-later,
+[  --enable-bitmap-later               enable fast startup of file server by not reading bitmap till needed],, enable_bitmap_later="no")
 AC_ARG_WITH(linux-kernel-headers,
 [  --with-linux-kernel-headers=path            use the kernel headers found at path(optional, defaults to /usr/src/linux)]
 )
+AC_ARG_ENABLE(kernel-module,
+[  --disable-kernel-module                     disable compilation of the kernel module (defaults to enabled)],, enable_kernel_module="yes"
+)
 
 AC_PROG_CC
 
@@ -49,26 +56,34 @@ system=$host
 case $system in
         *-linux*)
                MKAFS_OSTYPE=LINUX
-               if test "x$with_linux_kernel_headers" != "x"; then
-                       LINUX_KERNEL_PATH="$with_linux_kernel_headers"
-               else
-                       LINUX_KERNEL_PATH="/usr/src/linux"
-               fi
-               if test -f "$with_linux_kernel_headers/include/linux/version.h"; then
-                linux_kvers=`fgrep UTS_RELEASE $with_linux_kernel_headers/include/linux/version.h |awk 'BEGIN { FS="\"" } { print $2 }'`
-                if test "x$linux_kvers" = "x"; then
-                 AC_MSG_ERROR(Linux headers lack version definition)
-                 exit 1
+               if test "x$enable_kernel_module" = "xyes"; then
+                if test "x$with_linux_kernel_headers" != "x"; then
+                  LINUX_KERNEL_PATH="$with_linux_kernel_headers"
+                else
+                  LINUX_KERNEL_PATH="/usr/src/linux"
+                fi
+                if test -f "$LINUX_KERNEL_PATH/include/linux/version.h"; then
+                 linux_kvers=`fgrep UTS_RELEASE $LINUX_KERNEL_PATH/include/linux/version.h |awk 'BEGIN { FS="\"" } { print $2 }'|tail -1`
+                 if test "x$linux_kvers" = "x"; then
+                   AC_MSG_ERROR(Linux headers lack version definition)
+                   exit 1
+                 else
+                   LINUX_VERSION="$linux_kvers"
+                 fi
                 else
-                 LINUX_VERSION="$linux_kvers"
+                 if test "x$with_linux_kernel_headers" != "x"; then
+                  AC_MSG_ERROR(No linux headers found at $LINUX_KERNEL_PATH)
+                  exit 1
+                 else
+                  AC_MSG_WARN(No linux headers found at $LINUX_KERNEL_PATH so disabling kernel module)
+                  enable_kernel_module="no"
                 fi
-               else
-                AC_MSG_ERROR(No linux headers found at $with_linux_kernel_headers)
-                exit 1
                fi
-                AC_MSG_RESULT(linux)
-               LINUX_FS_STRUCT_INODE_HAS_I_BYTES
-               LINUX_INODE_SETATTR_RETURN_TYPE
+               AC_MSG_RESULT(linux)
+               if test "x$enable_kernel_module" = "xyes"; then
+                LINUX_FS_STRUCT_INODE_HAS_I_BYTES
+                LINUX_INODE_SETATTR_RETURN_TYPE
+               fi
                 ;;
         *-solaris*)
                MKAFS_OSTYPE=SOLARIS
@@ -111,7 +126,7 @@ else
   if test "$ac_cv_func_socket" = no; then
     for lib in socket inet; do
         if test "$HAVE_SOCKET" != 1; then
-                AC_CHECK_LIB($lib, socket,LIBS="$LIBS -l$lib";HAVE_SOCKET=1;AC_DEFINE(HAVE_SOCKET))
+                AC_CHECK_LIB(${lib}, socket,LIBS="$LIBS -l$lib";HAVE_SOCKET=1;AC_DEFINE(HAVE_SOCKET))
         fi
     done
   fi
@@ -121,7 +136,7 @@ else
   if test "$ac_cv_func_connect" = no; then
     for lib in nsl; do
         if test "$HAVE_CONNECT" != 1; then
-                AC_CHECK_LIB($lib, connect,LIBS="$LIBS -l$lib";HAVE_CONNECT=1;AC_DEFINE(HAVE_CONNECT))
+                AC_CHECK_LIB(${lib}, connect,LIBS="$LIBS -l$lib";HAVE_CONNECT=1;AC_DEFINE(HAVE_CONNECT))
         fi
     done
   fi
@@ -130,7 +145,7 @@ else
   if test "$ac_cv_func_gethostbyname" = no; then
         for lib in dns nsl resolv; do
           if test "$HAVE_GETHOSTBYNAME" != 1; then
-            AC_CHECK_LIB($lib, gethostbyname, LIBS="$LIBS -l$lib";HAVE_GETHOSTBYNAME=1;AC_DEFINE(HAVE_GETHOSTBYNAME))
+            AC_CHECK_LIB(${lib}, gethostbyname, LIBS="$LIBS -l$lib";HAVE_GETHOSTBYNAME=1;AC_DEFINE(HAVE_GETHOSTBYNAME))
           fi
         done    
   fi    
@@ -139,7 +154,7 @@ else
   if test "$ac_cv_func_res_search" = no; then
         for lib in dns nsl resolv; do
           if test "$HAVE_RES_SEARCH" != 1; then
-            AC_CHECK_LIB($lib, res_search, LIBS="$LIBS -l$lib";HAVE_RES_SEARCH=1;AC_DEFINE(HAVE_RES_SEARCH))
+            AC_CHECK_LIB(${lib}, res_search, LIBS="$LIBS -l$lib";HAVE_RES_SEARCH=1;AC_DEFINE(HAVE_RES_SEARCH))
           fi
         done    
        if test "$HAVE_RES_SEARCH" = 1; then
@@ -177,6 +192,15 @@ if test "$enable_insecure" = "yes"; then
        WITH_INSECURE=YES
 fi
 
+# Fast restart
+if test "$enable_fast_restart" = "yes"; then
+       AC_DEFINE(FAST_RESTART)
+fi
+
+if test "$enable_bitmap_later" = "yes"; then
+       AC_DEFINE(BITMAP_LATER)
+fi
+
 # Should autocompute a default
 if test "x$with_afs_sysname" != "x"; then
        AFS_SYSNAME="$with_afs_sysname"
@@ -214,7 +238,12 @@ AC_CHECK_HEADERS(security/pam_modules.h siad.h usersec.h)
 
 AC_CHECK_FUNCS(utimes random srandom getdtablesize snprintf re_comp re_exec)
 
+if test "x$enable_kernel_module" = "xyes"; then
+ENABLE_KERNEL_MODULE=libafs
+fi
+
 AC_SUBST(AFS_SYSNAME)
+AC_SUBST(ENABLE_KERNEL_MODULE)
 AC_SUBST(LIB_AFSDB)
 AC_SUBST(LINUX_KERNEL_PATH)
 AC_SUBST(LINUX_VERSION)