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path: root/recipes-connectivity/samba/samba/config-lfs.patch
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Cache the check for Linux LFS support, so it can be prepopulated from 
the site cache for configure variables for cross-compiling.  Without this,
samba gets the idea that it can use dirent64 and friends without defining
the flags it needs to get it, such as _GNU_SOURCE and _LARGEFILE64_SOURCE.

Symptoms of getting the configuration wrong on cross-compile inculde
warnings such as

  smbd/trans2.c: In function `get_lanman2_dir_entry':
  smbd/trans2.c:1065: warning: right shift count >= width of type

and errors like

  smbd/vfs.c:630: error: dereferencing pointer to incomplete type

(when trying to dereference dirent64.)

--- source/configure.in.orig	2005-05-29 14:46:18.000000000 -0700
+++ source/configure.in	2005-05-29 14:51:57.000000000 -0700
@@ -588,7 +588,7 @@
 # Tests for linux LFS support. Need kernel 2.4 and glibc2.2 or greater support.
 #
     *linux*)
-        AC_MSG_CHECKING([for LFS support])
+       AC_CACHE_CHECK([for LFS support], samba_cv_LINUX_LFS_SUPPORT,[
         old_CPPFLAGS="$CPPFLAGS"
         CPPFLAGS="-D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE $CPPFLAGS"
        AC_TRY_RUN([
@@ -627,15 +627,14 @@
        exit(1);
 #endif
 }
-], [LINUX_LFS_SUPPORT=yes], [LINUX_LFS_SUPPORT=no], [LINUX_LFS_SUPPORT=cross])
-	CPPFLAGS="$old_CPPFLAGS"
-	if test x$LINUX_LFS_SUPPORT = xyes ; then
+], [samba_cv_LINUX_LFS_SUPPORT=yes], [samba_cv_LINUX_LFS_SUPPORT=no], [samba_cv_LINUX_LFS_SUPPORT=cross])
+	CPPFLAGS="$old_CPPFLAGS"])
+	if test x"$samba_cv_LINUX_LFS_SUPPORT" = x"yes" ; then
 		CPPFLAGS="-D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE $CPPFLAGS"
 		AC_DEFINE(_LARGEFILE64_SOURCE, 1, [Whether to enable large file support])
 		AC_DEFINE(_FILE_OFFSET_BITS, 64, [File offset bits])
 		AC_DEFINE(_GNU_SOURCE, 1, [Whether to use GNU libc extensions])
 	fi
-	AC_MSG_RESULT([$LINUX_LFS_SUPPORT])
 	;;
 
 #