Attachment 1259 Details for Bug 2771 – add AC_CACHE_CHECK for LINUX_LFS_SUPPORT

[patch] add AC_CACHE_CHECK for LINUX_LFS_SUPPORT

config-lfs.patch (text/plain), 1.82 KB, created by Kevin Turner on 2005-06-04 12:26:13 UTC

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Creator: Kevin Turner

Created: 2005-06-04 12:26:13 UTC

Size: 1.82 KB

patch

obsolete

>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])
> 	;;
> 
> #

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Attachments on bug 2771: 1259