Made PKG_CHECK_MODULES with --enable-libcdio conditional

xorriso/configure_ac.txt

@@ -181,14 +181,19 @@ fi
 
 AH_TEMPLATE([Libisofs_with_aaip_acL], [Define to use ACL capabilities])
 AC_ARG_ENABLE(libacl,
-[  --enable-libacl         Enable use of libacl by libisofs, default=yes],
+[  --enable-libacl         Enable use of ACL functions by libisofs, default=yes],
                , enable_libacl=yes)
 if test x$enable_libacl = xyes; then
 dnl Check whether there is libacl-devel and libacl-runtime.
 dnl If not, erase this macro which would enable use of acl_to_text and others
     LIBACL_DEF="-DLibisofs_with_aaip_acL"
 dnl The empty yes case obviously causes -lacl to be linked
-    AC_CHECK_HEADER(sys/acl.h, AC_CHECK_LIB(acl, acl_to_text, , LIBACL_DEF= ), LIBACL_DEF= )
+    has_acl_h_but_no_func=0
+    AC_CHECK_HEADER(sys/acl.h, AC_CHECK_LIB(acl, acl_to_text, , has_acl_h_but_no_libacl=1 ), LIBACL_DEF= )
+    if test "$has_acl_h_but_no_libacl" = 1
+    then
+       AC_CHECK_LIB(c, acl_to_text, X= , LIBACL_DEF= )
+    fi
 else
     LIBACL_DEF=
 fi
@@ -199,6 +204,7 @@ fi
 
 
 AH_TEMPLATE([Libisofs_with_aaip_xattR], [Define to use xattr capabilities])
+AH_TEMPLATE([Libisofs_with_freebsd_extattR], [Define to use extattr capabilities])
 AC_ARG_ENABLE(xattr,
 [  --enable-xattr          Enable use of xattr by libisofs, default=yes],
                , enable_xattr=yes)
@@ -207,6 +213,11 @@ dnl Check whether there is the header for GNU/Linux xattr.
 dnl If not, erase this macro which would enable use of listxattr and others
     XATTR_DEF="-DLibisofs_with_aaip_xattR"
     AC_CHECK_HEADER(attr/xattr.h, AC_CHECK_LIB(c, listxattr, X= , XATTR_DEF= ), XATTR_DEF= )
+    if test "x$XATTR_DEF" = x
+    then
+       XATTR_DEF="-DLibisofs_with_freebsd_extattR"
+       AC_CHECK_HEADER(sys/extattr.h, AC_CHECK_LIB(c, extattr_list_file, X=, XATTR_DEF= ), XATTR_DEF= )
+    fi
 else
     XATTR_DEF=
 fi
@@ -214,6 +225,10 @@ if test x$XATTR_DEF = x-DLibisofs_with_aaip_xattR
 then
     AC_DEFINE([Libisofs_with_aaip_xattR], [])
 fi
+if test x$XATTR_DEF = x-DLibisofs_with_freebsd_extattR
+then
+    AC_DEFINE([Libisofs_with_freebsd_extattR], [])
+fi
 
 
 AH_TEMPLATE([Libisofs_with_zliB], [Define to use compression via zlib])
@@ -313,14 +328,6 @@ then
     fi
 else
     echo "enabled  EXPERIMENTAL use of libcdio as system adapter"
-
-# ------- Visible mark in configure : Start of library check
-
-    LIBCDIO_REQUIRED=0.83
-    PKG_CHECK_MODULES(LIBCDIO, libcdio >= $LIBCDIO_REQUIRED)
-
-# ------- Visible mark in configure : End of library check
-
 fi
 if test x$LIBCDIO_DEF = x-DLibburn_use_libcdiO
 then
@@ -396,6 +403,35 @@ then
 fi
 
 
+# ------- Visible mark in configure : Start of library check
+
+# Check for proper library versions if this is desired.
+# (It fails too often on too many systems.)
+AC_ARG_ENABLE(pkg-check-modules,
+[  --enable-pkg-check-modules      Enable pkg-config check for libburn and libisofs , default=no],
+               , enable_pkg_check_modules=no)
+if test x$enable_pkg_check_modules = xyes; then
+
+dnl If PKG_CHECK_MODULES is to be used after this if-block,
+dnl then it might be necessary to perform PKG_PROG_PKG_CONFIG before the block.
+
+  if test x$LIBCDIO_DEF = x; then
+    dummy=dummy
+  else
+    LIBCDIO_REQUIRED=0.83
+    PKG_CHECK_MODULES(LIBCDIO, libcdio >= $LIBCDIO_REQUIRED)
+  fi
+else
+  if test x$LIBCDIO_DEF = x; then
+    dummy=dummy
+  else
+    echo "checking for LIBCDIO... skipped, no --enable-pkg-check-modules"
+  fi
+fi
+
+# ------- Visible mark in configure : End of library check
+
+
 AC_CONFIG_FILES([
 	Makefile
 	version.h

xorriso/xorriso_timestamp.h

@@ -1 +1 @@
-#define Xorriso_timestamP "2011.08.25.185950"
+#define Xorriso_timestamP "2011.09.03.194744"