From: Takashi Iwai <tiwai@suse.de>
To: Chris Rankin <rankincj@yahoo.com>
Cc: alsa-devel@lists.sourceforge.net
Subject: Re: ALSA, and building the Linux kernel outside its source tree...
Date: Thu, 14 Oct 2004 17:06:14 +0200 [thread overview]
Message-ID: <s5h7jptgx09.wl@alsa2.suse.de> (raw)
In-Reply-To: <20041012234344.2098.qmail@web52905.mail.yahoo.com>
[-- Attachment #1: Type: text/plain, Size: 1420 bytes --]
At Wed, 13 Oct 2004 00:43:44 +0100 (BST),
Chris Rankin wrote:
>
> Hi,
>
> I have a number of Linux boxes, each with different
> CPUs of various speeds. For the sake of speed and
> storage space, I am experimenting with having a single
> source tree from which I can build multiple kernels.
> (It really doesn't make sense to force a P200 to
> compile its own kernel while its networked P4
> neighbour 'twiddles its bits', if you catch my
> meaning.) The Linux build process now allows this by
> specifying:
>
> make O=<output directory path> menuconfig
> make O=<output directory path>
> make O=<output directory path> modules_install
>
> You get the idea. The installation procedure now
> creates two symlinks:
>
> /lib/modules/<version>/build
> /lib/modules/<version>/source
>
> However, the ALSA driver cvscompile script expects
> everything to be accessible via the 'build' link,
> although the only headers available under
> build/include/linux are:
>
> version.h
> compile.h
> autoconf.h
>
> Would it be difficult to change the ALSA driver
> configure script to allow for separate source and
> build trees, please?
The attached patch adds --with-build configure option to specify the
build tree. As default, it's taken from /lib/modules/XXX/build.
Also the patch includes clean ups.
I didn't test the patch for 2.2/2.4 kernels. It would be appreciated
if anyone can test it on older kernels.
Takashi
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Index: alsa-driver/configure.in
===================================================================
RCS file: /suse/tiwai/cvs/alsa/alsa-driver/configure.in,v
retrieving revision 1.199
diff -u -r1.199 configure.in
--- alsa-driver/configure.in 12 Oct 2004 10:57:50 -0000 1.199
+++ alsa-driver/configure.in 14 Oct 2004 14:57:52 -0000
@@ -63,23 +63,36 @@
dnl Check for directory with kernel source...
AC_MSG_CHECKING(for directory with kernel source)
-if test -d "/lib/modules/`uname -r`/build" -o -L "/lib/modules/`uname -r`/build"; then
+if test -d "/lib/modules/`uname -r`/source" -o -L "/lib/modules/`uname -r`/source"; then
+ DEFAULT_KERNEL_DIR="/lib/modules/`uname -r`/source"
+ DEFAULT_KERNEL_BUILD="/lib/modules/`uname -r`/build"
+elif test -d "/lib/modules/`uname -r`/build" -o -L "/lib/modules/`uname -r`/build"; then
DEFAULT_KERNEL_DIR="/lib/modules/`uname -r`/build"
else
DEFAULT_KERNEL_DIR="/usr/src/linux"
fi
AC_ARG_WITH(kernel,
[ --with-kernel=dir give the directory with kernel sources]
- [ [/usr/src/linux]],
+ [ [[/usr/src/linux]]],
kerneldir="$withval",
kerneldir="$DEFAULT_KERNEL_DIR"
)
CONFIG_SND_KERNELDIR="$kerneldir"
+
+dnl Check for directory with kernel build tree...
+AC_MSG_CHECKING(for directory with kernel build)
AC_MSG_RESULT($kerneldir)
+AC_ARG_WITH(build,
+ [ --with-build=dir give the directory with kernel build tree],
+ kernelbuild="$withval",
+ kernelbuild="$DEFAULT_KERNEL_BUILD"
+)
+AC_MSG_RESULT($kernelbuild)
dnl Check for kernel version...
AC_MSG_CHECKING(for kernel version)
if ! test -r $CONFIG_SND_KERNELDIR/include/linux/version.h; then
+ if test -n "$kernelbuild" -a ! -f $kernelbuild/include/linux/version.h; then
cat << EOF
The file $CONFIG_SND_KERNELDIR/include/linux/version.h does not exist.
Please, install the package with full kernel sources for your distribution
@@ -87,16 +100,27 @@
sources (default is $DEFAULT_KERNEL_DIR).
EOF
exit 1
+ fi
fi
KERNEL_INC="-I$CONFIG_SND_KERNELDIR/include"
+MAKE_ADDS=""
+if test -n "$kernelbuild"; then
+ KERNEL_INC="-I$kernelbuild/include $KERNEL_INC"
+ MAKE_ADDS="O=$kernelbuild"
+fi
HACK_KERNEL_INC=""
ac_save_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS $KERNEL_INC $HACK_KERNEL_INC"
+if test -n "$kernelbuild" - a -f $kernelbuild/include/linux/version.h; then
+ KERNDIR=$kernelbuild
+else
+ KERNDIR=$CONFIG_SND_KERNELDIR
+fi
AC_CACHE_VAL(kaversion,
[AC_TRY_RUN([
#include <stdio.h>
#include <ctype.h>
-#include "$CONFIG_SND_KERNELDIR/include/linux/version.h"
+#include "$KERNDIR/include/linux/version.h"
int main()
{
FILE *f;
@@ -158,12 +182,17 @@
AC_MSG_CHECKING(for GCC version)
ac_save_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS $KERNEL_INC $HACK_KERNEL_INC"
+if test -n "$kernelbuild" -a -f $kernelbuild/include/linux/compile.h; then
+ KERNDIR=$kernelbuild
+else
+ KERNDIR=$CONFIG_SND_KERNELDIR
+fi
AC_CACHE_VAL(kernel_gcc,
[AC_TRY_RUN([
#include <stdio.h>
#include <ctype.h>
#include <string.h>
-#include "$CONFIG_SND_KERNELDIR/include/linux/compile.h"
+#include "$KERNDIR/include/linux/compile.h"
int main()
{
FILE *f;
@@ -300,7 +329,12 @@
AC_DEFUN([CHECK_KERNEL_HEADER], [
AC_MSG_CHECKING(for kernel $1)
- if test -f "$CONFIG_SND_KERNELDIR/include/$1"; then
+ if test -n "$kernelbuild" -a -f "$kernelbuild/include/$1"; then
+ KERNDIR=$kernelbuild
+ else
+ KERNDIR=$CONFIG_SND_KERNELDIR
+ fi
+ if test -f "$KERNDIR/include/$1"; then
AC_MSG_RESULT("yes")
if test -f include/$1; then
echo "Removing a dummy $1."
@@ -326,7 +360,12 @@
AC_DEFUN([MODIFY_KERNEL_HEADER], [
AC_MSG_CHECKING(to modify of kernel $1)
- if grep $2 "$CONFIG_SND_KERNELDIR/include/$1" > /dev/null 2>&1; then
+ if test -n "$kernelbuild" -a -f "$kernelbuild/include/$1"; then
+ KERNDIR=$kernelbuild
+ else
+ KERNDIR=$CONFIG_SND_KERNELDIR
+ fi
+ if grep $2 "$KERNDIR/include/$1" > /dev/null 2>&1; then
AC_MSG_RESULT("no")
if test -f include/$1; then
echo "Removing a dummy $1."
@@ -338,7 +377,7 @@
mkdir -p include/asm
echo "#ifndef $2" > include/$1
echo "#define $2" >> include/$1
- cat "$CONFIG_SND_KERNELDIR/include/$1" >> include/$1
+ cat "$KERNDIR/include/$1" >> include/$1
echo "#endif /* $2 */" >> include/$1
fi
])
@@ -349,9 +388,14 @@
AC_MSG_CHECKING(for $2)
ac_save_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS $KERNEL_INC $HACK_KERNEL_INC"
+ if test -n "$kernelbuild" -a -f "$kernelbuild/include/linux/autoconf.h"; then
+ KERNDIR=$kernelbuild
+ else
+ KERNDIR=$CONFIG_SND_KERNELDIR
+ fi
boolchk=""
AC_TRY_RUN([
-#include "$CONFIG_SND_KERNELDIR/include/linux/autoconf.h"
+#include "$KERNDIR/include/linux/autoconf.h"
int main( void ) {
#ifndef $boolvar
exit(1);
@@ -375,9 +419,14 @@
AC_MSG_CHECKING(for $2)
ac_save_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS $KERNEL_INC $HACK_KERNEL_INC"
+ if test -n "$kernelbuild" -a -f "$kernelbuild/include/linux/autoconf.h"; then
+ KERNDIR=$kernelbuild
+ else
+ KERNDIR=$CONFIG_SND_KERNELDIR
+ fi
boolchk=""
AC_TRY_RUN([
-#include "$CONFIG_SND_KERNELDIR/include/linux/autoconf.h"
+#include "$KERNDIR/include/linux/autoconf.h"
int main( void ) {
#if !defined($boolvar) && !defined($boolvar1)
exit(1);
@@ -401,9 +450,14 @@
AC_MSG_CHECKING(for $2)
ac_save_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS $KERNEL_INC $HACK_KERNEL_INC"
+ if test -n "$kernelbuild" -a -f "$kernelbuild/include/linux/autoconf.h"; then
+ KERNDIR=$kernelbuild
+ else
+ KERNDIR=$CONFIG_SND_KERNELDIR
+ fi
tristatechk=""
AC_TRY_RUN([
-#include "$CONFIG_SND_KERNELDIR/include/linux/autoconf.h"
+#include "$KERNDIR/include/linux/autoconf.h"
#include <stdio.h>
int main(void) {
FILE *file = fopen("tristate.result", "w+");
@@ -505,18 +559,6 @@
fi
fi
-MAKE_ADDS=""
-if test "$CONFIG_SUSE_KERNEL" = "y"; then
- if test ! -f $CONFIG_SND_KERNELDIR/include/linux/kernel.h; then
- if test "$CONFIG_SND_KERNELDIR" != "/usr/src/linux"; then
- echo "Tweaking the kernel source directories for SUSE kernels..."
- MAKE_ADDS="O=$CONFIG_SND_KERNELDIR"
- CONFIG_SND_KERNELDIR="/usr/src/linux"
- KERNEL_INC="-I$CONFIG_SND_KERNELDIR/include"
- fi
- fi
-fi
-
dnl define kernel directory now
AC_DEFINE_UNQUOTED(CONFIG_SND_KERNELDIR, "$CONFIG_SND_KERNELDIR")
AC_SUBST(CONFIG_SND_KERNELDIR)
@@ -613,7 +655,7 @@
AC_MSG_CHECKING(for directory to store kernel modules)
AC_ARG_WITH(moddir,
[ --with-moddir=/path give the path for the alsa driver kernel modules]
- [ [/lib/modules/<KVER>/misc]],
+ [ [[/lib/modules/<KVER>/misc]]],
moddir="$withval",
moddir_tree=
modsubdir="misc"
@@ -706,9 +748,14 @@
rm -f processor.id
ac_save_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS $KERNEL_INC $HACK_KERNEL_INC"
+if test -n "$kernelbuild" -a -f "$kernelbuild/include/linux/autoconf.h"; then
+ KERNDIR=$kernelbuild
+else
+ KERNDIR=$CONFIG_SND_KERNELDIR
+fi
AC_TRY_RUN([
#include <stdio.h>
-#include "$CONFIG_SND_KERNELDIR/include/linux/autoconf.h"
+#include "$KERNDIR/include/linux/autoconf.h"
int main(void) {
FILE *file = fopen("processor.id", "w+");
if (file == NULL)
@@ -1004,9 +1051,14 @@
ac_save_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -I$CONFIG_SND_KERNELDIR/include"
rm -f machine.id
+ if test -n "$kernelbuild" -a -f "$kernelbuild/include/linux/autoconf.h"; then
+ KERNDIR=$kernelbuild
+ else
+ KERNDIR=$CONFIG_SND_KERNELDIR
+ fi
AC_TRY_RUN([
#include <stdio.h>
-#include "$CONFIG_SND_KERNELDIR/include/linux/autoconf.h"
+#include "$KERNDIR/include/linux/autoconf.h"
int main(void) {
FILE *file = fopen("machine.id", "w+");
if (file == NULL)
@@ -1154,12 +1206,12 @@
AC_MSG_CHECKING(for strlcpy)
strlcpy="0"
ac_save_CFLAGS="$CFLAGS"
-CFLAGS="-Wall -Werror $CFLAGS $KERNEL_INC $HACK_KERNEL_INC"
+CFLAGS="-Wall -Werror $CFLAGS $KERNEL_INC $HACK_KERNEL_INC -nostdinc -iwithprefix include"
AC_TRY_COMPILE([
#define __KERNEL__
-#include "$CONFIG_SND_KERNELDIR/include/linux/config.h"
-#include "$CONFIG_SND_KERNELDIR/include/linux/kernel.h"
-#include "$CONFIG_SND_KERNELDIR/include/linux/string.h"
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
],[
char buf[128];
strlcpy(buf, "abcd", sizeof(buf));
@@ -1179,11 +1231,11 @@
AC_MSG_CHECKING(for snprintf)
snprintf="0"
ac_save_CFLAGS="$CFLAGS"
-CFLAGS="-Wall -Werror $CFLAGS $KERNEL_INC $HACK_KERNEL_INC"
+CFLAGS="-Wall -Werror $CFLAGS $KERNEL_INC $HACK_KERNEL_INC -nostdinc -iwithprefix include"
AC_TRY_COMPILE([
#define __KERNEL__
-#include "$CONFIG_SND_KERNELDIR/include/linux/config.h"
-#include "$CONFIG_SND_KERNELDIR/include/linux/kernel.h"
+#include <linux/config.h>
+#include <linux/kernel.h>
],[
char buf[128];
snprintf(buf, sizeof(buf), "abcd");
@@ -1203,11 +1255,11 @@
AC_MSG_CHECKING(for scnprintf)
scnprintf="0"
ac_save_CFLAGS="$CFLAGS"
-CFLAGS="-Wall -Werror $CFLAGS $KERNEL_INC $HACK_KERNEL_INC"
+CFLAGS="-Wall -Werror $CFLAGS $KERNEL_INC $HACK_KERNEL_INC -nostdinc -iwithprefix include"
AC_TRY_COMPILE([
#define __KERNEL__
-#include "$CONFIG_SND_KERNELDIR/include/linux/config.h"
-#include "$CONFIG_SND_KERNELDIR/include/linux/kernel.h"
+#include <linux/config.h>
+#include <linux/kernel.h>
],[
char buf[128];
scnprintf(buf, sizeof(buf), "abcd");
@@ -1227,11 +1279,11 @@
AC_MSG_CHECKING(for sscanf)
sscanf="0"
ac_save_CFLAGS="$CFLAGS"
-CFLAGS="-Wall -Werror $CFLAGS $KERNEL_INC $HACK_KERNEL_INC"
+CFLAGS="-Wall -Werror $CFLAGS $KERNEL_INC $HACK_KERNEL_INC -nostdinc -iwithprefix include"
AC_TRY_COMPILE([
#define __KERNEL__
-#include "$CONFIG_SND_KERNELDIR/include/linux/config.h"
-#include "$CONFIG_SND_KERNELDIR/include/linux/kernel.h"
+#include <linux/config.h>
+#include <linux/kernel.h>
],[
unsigned int i;
sscanf("2a", "%x", &i);
@@ -1251,12 +1303,12 @@
AC_MSG_CHECKING(for vmalloc_to_page)
vmalloc_to_page="0"
ac_save_CFLAGS="$CFLAGS"
-CFLAGS="$CFLAGS $KERNEL_INC $HACK_KERNEL_INC"
+CFLAGS="$CFLAGS $KERNEL_INC $HACK_KERNEL_INC -nostdinc -iwithprefix include"
AC_TRY_COMPILE([
#define __KERNEL__
-#include "$CONFIG_SND_KERNELDIR/include/linux/config.h"
-#include "$CONFIG_SND_KERNELDIR/include/linux/time.h"
-#include "$CONFIG_SND_KERNELDIR/include/linux/mm.h"
+#include <linux/config.h>
+#include <linux/time.h>
+#include <linux/mm.h>
],[
struct page * (*func)(void*);
func = vmalloc_to_page;
@@ -1276,11 +1328,11 @@
AC_MSG_CHECKING(for old kmod)
old_kmod="0"
ac_save_CFLAGS="$CFLAGS"
-CFLAGS="$CFLAGS -Wall $KERNEL_INC $HACK_KERNEL_INC"
+CFLAGS="$CFLAGS -Wall $KERNEL_INC $HACK_KERNEL_INC -nostdinc -iwithprefix include"
AC_TRY_COMPILE([
#define __KERNEL__
-#include "$CONFIG_SND_KERNELDIR/include/linux/config.h"
-#include "$CONFIG_SND_KERNELDIR/include/linux/kmod.h"
+#include <linux/config.h>
+#include <linux/kmod.h>
],[
request_module("abcd", "def", "ixj");
],
@@ -1299,12 +1351,12 @@
AC_MSG_CHECKING(for PDE)
pde_defined="0"
ac_save_CFLAGS="$CFLAGS"
-CFLAGS="$CFLAGS -Wall $KERNEL_INC $HACK_KERNEL_INC"
+CFLAGS="$CFLAGS -Wall $KERNEL_INC $HACK_KERNEL_INC -nostdinc -iwithprefix include"
AC_TRY_COMPILE([
#define __KERNEL__
-#include "$CONFIG_SND_KERNELDIR/include/linux/config.h"
-#include "$CONFIG_SND_KERNELDIR/include/linux/fs.h"
-#include "$CONFIG_SND_KERNELDIR/include/linux/proc_fs.h"
+#include <linux/config.h>
+#include <linux/fs.h>
+#include <linux/proc_fs.h>
],[
struct proc_dir_entry * (*func)();
func = PDE;
@@ -1324,11 +1376,11 @@
AC_MSG_CHECKING(for pci_set_consistent_dma_mask)
pci_consistent_defined="0"
ac_save_CFLAGS="$CFLAGS"
-CFLAGS="$CFLAGS -Wall $KERNEL_INC $HACK_KERNEL_INC"
+CFLAGS="$CFLAGS -Wall $KERNEL_INC $HACK_KERNEL_INC -nostdinc -iwithprefix include"
AC_TRY_COMPILE([
#define __KERNEL__
-#include "$CONFIG_SND_KERNELDIR/include/linux/config.h"
-#include "$CONFIG_SND_KERNELDIR/include/linux/pci.h"
+#include <linux/config.h>
+#include <linux/pci.h>
],[
int (*func)();
func = pci_set_consistent_dma_mask;
@@ -1347,11 +1399,11 @@
AC_MSG_CHECKING(for tty->count is the atomic type)
tty_count_atomic="0"
ac_save_CFLAGS="$CFLAGS"
-CFLAGS="$CFLAGS -Wall $KERNEL_INC $HACK_KERNEL_INC"
+CFLAGS="$CFLAGS -Wall $KERNEL_INC $HACK_KERNEL_INC -nostdinc -iwithprefix include"
AC_TRY_COMPILE([
#define __KERNEL__
-#include "$CONFIG_SND_KERNELDIR/include/linux/config.h"
-#include "$CONFIG_SND_KERNELDIR/include/linux/tty.h"
+#include <linux/config.h>
+#include <linux/tty.h>
],[
struct tty_struct tty;
atomic_read(&tty.count);
@@ -1371,11 +1423,11 @@
AC_MSG_CHECKING(for video_get_drvdata)
video_get_drvdata="0"
ac_save_CFLAGS="$CFLAGS"
-CFLAGS="$CFLAGS $KERNEL_INC $HACK_KERNEL_INC"
+CFLAGS="$CFLAGS $KERNEL_INC $HACK_KERNEL_INC -nostdinc -iwithprefix include"
AC_TRY_COMPILE([
#define __KERNEL__
-#include "$CONFIG_SND_KERNELDIR/include/linux/config.h"
-#include "$CONFIG_SND_KERNELDIR/include/linux/videodev.h"
+#include <linux/config.h>
+#include <linux/videodev.h>
],[
void *(*func)(struct video_device *);
func = video_get_drvdata;
@@ -1396,11 +1448,11 @@
AC_MSG_CHECKING(for remap_pfn_range)
remap_pfn_range="0"
ac_save_CFLAGS="$CFLAGS"
-CFLAGS="$CFLAGS $KERNEL_INC $HACK_KERNEL_INC"
+CFLAGS="$CFLAGS $KERNEL_INC $HACK_KERNEL_INC -nostdinc -iwithprefix include"
AC_TRY_COMPILE([
#define __KERNEL__
-#include "$CONFIG_SND_KERNELDIR/include/linux/config.h"
-#include "$CONFIG_SND_KERNELDIR/include/linux/mm.h"
+#include <linux/config.h>
+#include <linux/mm.h>
],[
int (*func)(struct vm_area_struct *, unsigned long, unsigned long, unsigned long, pgprot_t);
pgprot_t p;
@@ -1420,11 +1472,11 @@
AC_MSG_CHECKING(for new remap_page_range)
new_remap="0"
ac_save_CFLAGS="$CFLAGS"
-CFLAGS="$CFLAGS $KERNEL_INC $HACK_KERNEL_INC"
+CFLAGS="$CFLAGS $KERNEL_INC $HACK_KERNEL_INC -nostdinc -iwithprefix include"
AC_TRY_COMPILE([
#define __KERNEL__
-#include "$CONFIG_SND_KERNELDIR/include/linux/config.h"
-#include "$CONFIG_SND_KERNELDIR/include/linux/mm.h"
+#include <linux/config.h>
+#include <linux/mm.h>
],[
int (*func)(struct vm_area_struct *, unsigned long, unsigned long, unsigned long, pgprot_t);
pgprot_t p;
@@ -1445,11 +1497,11 @@
AC_MSG_CHECKING(for kcalloc)
kcalloc="0"
ac_save_CFLAGS="$CFLAGS"
-CFLAGS="$CFLAGS $KERNEL_INC $HACK_KERNEL_INC"
+CFLAGS="$CFLAGS $KERNEL_INC $HACK_KERNEL_INC -nostdinc -iwithprefix include"
AC_TRY_COMPILE([
#define __KERNEL__
-#include "$CONFIG_SND_KERNELDIR/include/linux/config.h"
-#include "$CONFIG_SND_KERNELDIR/include/linux/slab.h"
+#include <linux/config.h>
+#include <linux/slab.h>
],[
void * (*func)(size_t, size_t, int);
func = kcalloc;
@@ -1469,11 +1521,11 @@
AC_MSG_CHECKING(for saved_config_space in pci_dev)
pci_saved_config="0"
ac_save_CFLAGS="$CFLAGS"
-CFLAGS="$CFLAGS $KERNEL_INC $HACK_KERNEL_INC"
+CFLAGS="$CFLAGS $KERNEL_INC $HACK_KERNEL_INC -nostdinc -iwithprefix include"
AC_TRY_COMPILE([
#define __KERNEL__
-#include "$CONFIG_SND_KERNELDIR/include/linux/config.h"
-#include "$CONFIG_SND_KERNELDIR/include/linux/pci.h"
+#include <linux/config.h>
+#include <linux/pci.h>
],[
struct pci_dev dev;
dev.saved_config_space[0] = 0;
@@ -1494,11 +1546,11 @@
AC_MSG_CHECKING(for new pci_save_state)
new_pci_save_state="0"
ac_save_CFLAGS="$CFLAGS"
-CFLAGS="$CFLAGS $KERNEL_INC $HACK_KERNEL_INC"
+CFLAGS="$CFLAGS $KERNEL_INC $HACK_KERNEL_INC -nostdinc -iwithprefix include"
AC_TRY_COMPILE([
#define __KERNEL__
-#include "$CONFIG_SND_KERNELDIR/include/linux/config.h"
-#include "$CONFIG_SND_KERNELDIR/include/linux/pci.h"
+#include <linux/config.h>
+#include <linux/pci.h>
],[
struct pci_dev *pci;
pci_save_state(pci);
@@ -1517,11 +1569,11 @@
AC_MSG_CHECKING(for acpi_register_gsi)
acpi_register_gsi="0"
ac_save_CFLAGS="$CFLAGS"
-CFLAGS="$CFLAGS $KERNEL_INC $HACK_KERNEL_INC"
+CFLAGS="$CFLAGS $KERNEL_INC $HACK_KERNEL_INC -nostdinc -iwithprefix include"
AC_TRY_COMPILE([
#define __KERNEL__
-#include "$CONFIG_SND_KERNELDIR/include/linux/config.h"
-#include "$CONFIG_SND_KERNELDIR/include/linux/acpi.h"
+#include <linux/config.h>
+#include <linux/acpi.h>
],[
unsigned int (*func)(u32, int, int);
func = acpi_register_gsi;
@@ -1698,19 +1750,19 @@
AC_MSG_CHECKING(for RTC callback support in kernel)
rtcsup="0"
ac_save_CFLAGS="$CFLAGS"
-CFLAGS="$CFLAGS $KERNEL_INC $HACK_KERNEL_INC"
+CFLAGS="$CFLAGS $KERNEL_INC $HACK_KERNEL_INC -nostdinc -iwithprefix include"
AC_TRY_RUN([
-#include "$CONFIG_SND_KERNELDIR/include/linux/autoconf.h"
+#include <linux/autoconf.h>
#if defined(__alpha__) || (!defined(CONFIG_RTC) && !defined(CONFIG_RTC_MODULE))
int main(void) { exit(1); }
#else
#define __KERNEL__
-#include "$CONFIG_SND_KERNELDIR/include/linux/version.h"
-#include "$CONFIG_SND_KERNELDIR/include/linux/config.h"
+#include <linux/version.h>
+#include <linux/config.h>
#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 2, 12) /* FIXME: which 2.2.x kernel? */
-#include "$CONFIG_SND_KERNELDIR/include/linux/rtc.h"
+#include <linux/rtc.h>
#else
-#include "$CONFIG_SND_KERNELDIR/include/linux/mc146818rtc.h"
+#include <linux/mc146818rtc.h>
#endif
int main(void)
{
next prev parent reply other threads:[~2004-10-14 15:06 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-10-12 23:43 ALSA, and building the Linux kernel outside its source tree Chris Rankin
2004-10-14 15:06 ` Takashi Iwai [this message]
2004-10-15 13:15 ` Clemens Ladisch
2004-10-16 13:10 ` Chris Rankin
2004-10-18 10:47 ` Takashi Iwai
2004-10-18 14:51 ` Takashi Iwai
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