Imported Upstream version 2.6.0

[debian/amanda] / config / amanda / lfs.m4

diff --git a/config/amanda/lfs.m4 b/config/amanda/lfs.m4
new file mode 100644 (file)
index 0000000..0de6a66
--- /dev/null
+++ b/config/amanda/lfs.m4
@@ -0,0 +1,75 @@
+# SYNOPSIS
+#
+#   AMANDA_SETUP_LFS
+#
+# OVERVIEW
+#
+#   Set up for large file suport on this system.  Besides adding compiler flags,
+#   defines NEED_RESETOFS if the tape device's offset must be reset before it reaches
+#   2GB (a Linux kernel bug in systems without LFS support).
+#
+AC_DEFUN([AMANDA_SETUP_LFS],
+[
+    AC_REQUIRE([AMANDA_PROG_GETCONF])
+    AC_REQUIRE([AC_SYS_LARGEFILE])
+
+    # we use 'getconf', if it exists, to get the relevant
+    # compiler flags.
+    GETCONF_LFS="LFS"
+    case "$target" in
+        *-hp-*) GETCONF_LFS="XBS5_ILP32_OFFBIG" ;;
+        *-ibm-aix*) GETCONF_LFS="XBS5_ILP32_OFFBIG" ;;
+    esac
+
+    # Checks for compilers, typedefs, structures, and compiler characteristics.
+    # Check for large file compilation environment.
+    NEED_RESETOFS=yes
+    AC_CACHE_CHECK([for large file compilation CFLAGS],
+        amanda_cv_LFS_CFLAGS,
+        [
+        amanda_cv_LFS_CFLAGS=
+        if test "$GETCONF"; then
+            if $GETCONF ${GETCONF_LFS}_CFLAGS >/dev/null 2>&1; then
+                amanda_cv_LFS_CFLAGS=`$GETCONF ${GETCONF_LFS}_CFLAGS 2>/dev/null`
+                NEED_RESETOFS=no
+            fi
+        fi
+        ]
+    )
+    AMANDA_ADD_CFLAGS([$amanda_cv_LFS_CFLAGS])
+
+    AC_CACHE_CHECK(
+        [for large file compilation LDFLAGS],
+        amanda_cv_LFS_LDFLAGS,
+        [
+        amanda_cv_LFS_LDFLAGS=
+        if test "$GETCONF"; then
+            if $GETCONF ${GETCONF_LFS}_LDFLAGS >/dev/null 2>&1; then
+                amanda_cv_LFS_LDFLAGS=`$GETCONF ${GETCONF_LFS}_LDFLAGS 2>/dev/null`
+                NEED_RESETOFS=no
+            fi
+        fi
+        ]
+    )
+    AMANDA_ADD_LDFLAGS([$amanda_cv_LFS_LDFLAGS])
+
+    AC_CACHE_CHECK(
+        [for large file compilation LIBS],
+        amanda_cv_LFS_LIBS,
+        [
+        amanda_cv_LFS_LIBS=
+        if test "$GETCONF"; then
+            if $GETCONF ${GETCONF_LFS}_LIBS >/dev/null 2>&1; then
+                amanda_cv_LFS_LIBS=`$GETCONF ${GETCONF_LFS}_LIBS 2>/dev/null`
+                NEED_RESETOFS=no
+            fi
+        fi
+        ]
+    )
+    AMANDA_ADD_LIBS([$amanda_cv_LFS_LIBS])
+
+    if test x"$NEED_RESETOFS" = x"yes"; then
+        AC_DEFINE(NEED_RESETOFS,1,
+            [Define if we have to reset tape offsets when reaching 2GB. ])
+    fi
+])