14a44a6920
1998-08-12 Andreas Jaeger <aj@arthur.rhein-neckar.de> * sysdeps/unix/sysv/linux/configure.in: Obey --with-headers, document it. * sysdeps/unix/sysv/linux/alpha/configure.in: New file, contains test for recent Linux 2.1.100+ headers.
37 lines
1.5 KiB
Plaintext
37 lines
1.5 KiB
Plaintext
sinclude(./aclocal.m4)dnl Autoconf lossage
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GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
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# Local configure fragment for sysdeps/unix/sysv/linux/alpha.
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# Don't bother trying to generate any glue code to be compatible with the
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# existing system library, because we are the only system library.
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inhibit_glue=yes
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define([LIBC_LINUX_VERSION],[2.1.100])dnl
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if test -n "$sysheaders"; then
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OLD_CFLAGS=$CFLAGS
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CFLAGS="$CFLAGS $SYSINCLUDES"
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fi
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define([libc_cv_linuxVER], [libc_cv_linux]patsubst(LIBC_LINUX_VERSION,[\.]))dnl
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AC_CACHE_CHECK(installed Linux kernel header files, libc_cv_linuxVER, [dnl
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AC_TRY_COMPILE([#include <linux/version.h>],
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[#if LINUX_VERSION_CODE < ]dnl
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patsubst(LIBC_LINUX_VERSION,[^\([^.]*\)\.\([^.]*\)\.\([^.]*\)$],dnl
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[ (\1 *65536+ \2 *256+ \3) /* \1.\2.\3 */])[
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eat flaming death
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#endif],
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libc_cv_linuxVER='LIBC_LINUX_VERSION or later',
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libc_cv_linuxVER='TOO OLD!')])
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if test "$libc_cv_linuxVER" != 'LIBC_LINUX_VERSION or later'; then
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AC_MSG_ERROR([GNU libc requires kernel header files from
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Linux LIBC_LINUX_VERSION or later to be installed before configuring.
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The kernel header files are found usually in /usr/include/asm and
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/usr/include/linux; make sure these directories use files from
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Linux LIBC_LINUX_VERSION or later. This check uses <linux/version.h>, so
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make sure that file was built correctly when installing the kernel header
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files. To use kernel headers not from /usr/include/linux, use the
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configure option --with-headers.])
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fi
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if test -n "$sysheaders"; then
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CFLAGS=$OLD_CFLAGS
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fi
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