diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/configure')
| -rw-r--r-- | sysdeps/unix/sysv/linux/configure | 39 |
1 files changed, 38 insertions, 1 deletions
diff --git a/sysdeps/unix/sysv/linux/configure b/sysdeps/unix/sysv/linux/configure index 62d8538003..8884d555a0 100644 --- a/sysdeps/unix/sysv/linux/configure +++ b/sysdeps/unix/sysv/linux/configure @@ -1,7 +1,44 @@ -# On Linux, the default is to use libio instead of stdio. + # Local configure fragment for sysdeps/unix/sysv/linux. +# On Linux, the default is to use libio instead of stdio. test $stdio = default && stdio=libio # Don't bother trying to generate any glue code to be compatible with the # existing system library, because we are the only system library. inhibit_glue=yes + +echo $ac_n "checking installed Linux kernel header files""... $ac_c" 1>&6 +if eval "test \"`echo '$''{'libc_cv_linux2'+set}'`\" = set"; then + echo $ac_n "(cached) $ac_c" 1>&6 +else + cat > conftest.$ac_ext <<EOF +#line 16 "configure" +#include "confdefs.h" +#include <linux/version.h> +int main() { return 0; } +int t() { +#if LINUX_VERSION_CODE < (2 *65536+ 0 *256+ 0) /* 2.0.0 */ +eat flaming death +#endif +; return 0; } +EOF +if { (eval echo configure:26: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then + rm -rf conftest* + libc_cv_linux2='2.0 or later' +else + rm -rf conftest* + libc_cv_linux2='TOO OLD!' +fi +rm -f conftest* + +fi + +echo "$ac_t""$libc_cv_linux2" 1>&6 +if test "$libc_cv_linux2" != '2.0 or later'; then + { echo "configure: error: GNU libc requires kernel header files from Linux 2.0 +or later to be installed before configuring. The kernel header files +are found usually in /usr/include/asm and /usr/include/linux; make sure +these directories use files from Linux 2.0 or later. This check uses +<linux/version.h>, so make sure that file was built correctly when +installing the kernel header files." 1>&2; exit 1; } +fi |