diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/configure.in')
| -rw-r--r-- | sysdeps/unix/sysv/linux/configure.in | 26 |
1 files changed, 10 insertions, 16 deletions
diff --git a/sysdeps/unix/sysv/linux/configure.in b/sysdeps/unix/sysv/linux/configure.in index 021b4731eb..3f3d02131a 100644 --- a/sysdeps/unix/sysv/linux/configure.in +++ b/sysdeps/unix/sysv/linux/configure.in @@ -16,14 +16,14 @@ if test -n "$sysheaders"; then fi define([libc_cv_linuxVER], [libc_cv_linux]patsubst(LIBC_LINUX_VERSION,[\.]))dnl AC_CACHE_CHECK(installed Linux kernel header files, libc_cv_linuxVER, [dnl -AC_TRY_COMPILE([#include <linux/version.h>], -[#if LINUX_VERSION_CODE < ]dnl +AC_EGREP_CPP([eat flaming death], [#include <linux/version.h> +#if !defined LINUX_VERSION_CODE || LINUX_VERSION_CODE < ]dnl patsubst(LIBC_LINUX_VERSION,[^\([^.]*\)\.\([^.]*\)\.\([^.]*\)$],dnl [ (\1 *65536+ \2 *256+ \3) /* \1.\2.\3 */])[ eat flaming death #endif], - libc_cv_linuxVER='LIBC_LINUX_VERSION or later', - libc_cv_linuxVER='TOO OLD!')]) + libc_cv_linuxVER='TOO OLD!', + libc_cv_linuxVER='LIBC_LINUX_VERSION or later')]) if test "$libc_cv_linuxVER" != 'LIBC_LINUX_VERSION or later'; then AC_MSG_ERROR([GNU libc requires kernel header files from Linux LIBC_LINUX_VERSION or later to be installed before configuring. @@ -40,25 +40,19 @@ fi if test -n "$minimum_kernel"; then AC_MSG_CHECKING(for kernel header at least $minimum_kernel) changequote(,)dnl - decnum=`echo "$minimum_kernel.0.0.0" | sed 's/\([0-9]*\)\.\([0-9]*\)\.\(\([0-9]*\)\|\).*/(\1 * 65536 + \2 * 256 + \3)/'`; + decnum=`echo "$minimum_kernel.0.0.0" | sed 's/\([0-9]*\)\.\([0-9]*\)\.\([0-9]*\).*/(\1 * 65536 + \2 * 256 + \3)/'`; changequote([,])dnl - cat > conftest.$ac_ext <<EOF -#include <linux/version.h> -int main() { + AC_EGREP_CPP([eat flaming death], [#include <linux/version.h> #if LINUX_VERSION_CODE < $decnum eat flaming death -#endif -; return 0; } -EOF - if { (eval echo configure:30: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then +#endif], libc_minimum_kernel='too old!', libc_minimum_kernel=ok) + AC_MSG_RESULT($libc_minimum_kernel) + if test "$libc_minimum_kernel" = ok; then AC_DEFINE_UNQUOTED(__LINUX_KERNEL_VERSION, $decnum) - AC_MSG_RESULT(ok) else - AC_MSG_RESULT(too old!) - AC_MSG_ERROR([*** The available kernel headers are not at least as old as the requested + AC_MSG_ERROR([*** The available kernel headers are older than the requested *** compatible kernel version]) fi - rm -f conftest* fi if test -n "$sysheaders"; then |