diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/configure')
| -rw-r--r-- | sysdeps/unix/sysv/linux/configure | 33 |
1 files changed, 31 insertions, 2 deletions
diff --git a/sysdeps/unix/sysv/linux/configure b/sysdeps/unix/sysv/linux/configure index bf5e797d31..f5d994b1c7 100644 --- a/sysdeps/unix/sysv/linux/configure +++ b/sysdeps/unix/sysv/linux/configure @@ -13,7 +13,7 @@ if test -n "$sysheaders"; then fi echo $ac_n "checking installed Linux kernel header files""... $ac_c" 1>&6 echo "configure:16: checking installed Linux kernel header files" >&5 -if eval "test \"`echo '$''{'libc_cv_linux2010'+set}'`\" = set"; then +if eval "test \"\${libc_cv_linux2010+set}\" = set"; then echo $ac_n "(cached) $ac_c" 1>&6 else cat > conftest.$ac_ext <<EOF @@ -49,6 +49,35 @@ make sure that file was built correctly when installing the kernel header files. To use kernel headers not from /usr/include/linux, use the configure option --with-headers." 1>&2; exit 1; } fi + +# If the user gave a minimal version number test whether the available +# kernel headers are young enough. +if test -n "$minimum_kernel"; then + echo $ac_n "checking for kernel header at least $minimum_kernel""... $ac_c" 1>&6 +echo "configure:58: checking for kernel header at least $minimum_kernel" >&5 + decnum=`echo "$minimum_kernel.0.0.0" | sed 's/\([0-9]*\)\.\([0-9]*\)\.\(\([0-9]*\)\|\).*/(\1 * 65536 + \2 * 256 + \3)/'`; + cat > conftest.$ac_ext <<EOF +#include <linux/version.h> +int main() { +#if LINUX_VERSION_CODE < $decnum +eat flaming death +#endif +; return 0; } +EOF + if { (eval echo configure:30: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then + cat >> confdefs.h <<EOF +#define __LINUX_KERNEL_VERSION $decnum +EOF + + echo "$ac_t""ok" 1>&6 + else + echo "$ac_t""too old!" 1>&6 + { echo "configure: error: *** The available kernel headers are not at least as old as the requested +*** compatible kernel version" 1>&2; exit 1; } + fi + rm -f conftest* +fi + if test -n "$sysheaders"; then CFLAGS=$OLD_CFLAGS fi @@ -135,7 +164,7 @@ if test $host = $build; then ac_prefix=$ac_default_prefix fi echo $ac_n "checking for symlinks in ${ac_prefix}/include""... $ac_c" 1>&6 -echo "configure:131: checking for symlinks in ${ac_prefix}/include" >&5 +echo "configure:168: checking for symlinks in ${ac_prefix}/include" >&5 ac_message= if test -L ${ac_prefix}/include/net; then ac_message="$ac_message |