161 lines
4 KiB
Text
161 lines
4 KiB
Text
dnl ** Additional Autoconf tests for BIRD configure script
|
|
dnl ** (c) 1999 Martin Mares <mj@ucw.cz>
|
|
|
|
AC_DEFUN(BIRD_CHECK_INTEGERS,
|
|
[AC_CHECK_SIZEOF(char, 0)
|
|
AC_CHECK_SIZEOF(short int, 0)
|
|
AC_CHECK_SIZEOF(int, 0)
|
|
AC_CHECK_SIZEOF(long int, 0)
|
|
for size in 1 2 4 ; do
|
|
bits=`expr $size "*" 8`
|
|
AC_MSG_CHECKING([for $bits-bit type])
|
|
if test $ac_cv_sizeof_int = $size ; then
|
|
res=int
|
|
elif test $ac_cv_sizeof_char = $size ; then
|
|
res=char
|
|
elif test $ac_cv_sizeof_short_int = $size ; then
|
|
res="short int"
|
|
elif test $ac_cv_sizeof_long_int = $size ; then
|
|
res="long int"
|
|
else
|
|
AC_MSG_RESULT([not found])
|
|
AC_MSG_ERROR([Cannot find $bits-bit integer type.])
|
|
fi
|
|
AC_MSG_RESULT($res)
|
|
AC_DEFINE_UNQUOTED(INTEGER_$bits, $res)
|
|
done
|
|
])
|
|
|
|
dnl BIRD_CHECK_ENDIAN is unused and obsolete
|
|
AC_DEFUN(BIRD_CHECK_ENDIAN,
|
|
[AC_CACHE_CHECK([CPU endianity], bird_cv_c_endian,[
|
|
AC_TRY_RUN([
|
|
#include <stdio.h>
|
|
|
|
unsigned int x = 0x12345678;
|
|
unsigned char *z = (unsigned char *) &x;
|
|
|
|
int main(void)
|
|
{
|
|
FILE *f = fopen("conftestresult", "w");
|
|
if (!f) return 10;
|
|
fprintf(f, "%02x %02x %02x %02x", *z, *(z+1), *(z+2), *(z+3));
|
|
fclose(f);
|
|
exit(0);
|
|
}
|
|
],[
|
|
endian=`cat conftestresult`
|
|
if test "$endian" = "12 34 56 78" ; then
|
|
bird_cv_c_endian=big-endian
|
|
elif test "$endian" = "78 56 34 12" ; then
|
|
bird_cv_c_endian=little-endian
|
|
fi
|
|
],[endian="test program failed"],[endian="not available, we're cross compiling"])
|
|
if test -z "$bird_cv_c_endian" ; then
|
|
AC_MSG_RESULT($endian)
|
|
AC_MSG_ERROR([Cannot determine CPU endianity.])
|
|
fi
|
|
])
|
|
case $bird_cv_c_endian in
|
|
big-endian) AC_DEFINE(CPU_BIG_ENDIAN) ;;
|
|
little-endian) AC_DEFINE(CPU_LITTLE_ENDIAN) ;;
|
|
esac
|
|
])
|
|
|
|
AC_DEFUN(BIRD_CHECK_STRUCT_ALIGN,
|
|
[AC_CACHE_CHECK([usual alignment of structures],bird_cv_c_struct_align,[
|
|
AC_TRY_RUN([
|
|
#include <stdio.h>
|
|
|
|
struct { char x; long int y; } ary[2];
|
|
|
|
int main(void)
|
|
{
|
|
FILE *f = fopen("conftestresult", "w");
|
|
if (!f) return 10;
|
|
fprintf(f, "%d", sizeof(ary)/2);
|
|
fclose(f);
|
|
exit(0);
|
|
}
|
|
],[
|
|
bird_cv_c_struct_align=`cat conftestresult`
|
|
],[
|
|
AC_MSG_RESULT([test program failed])
|
|
AC_MSG_ERROR([Cannot determine structure alignment])
|
|
],[bird_cv_c_struct_align=16])
|
|
])
|
|
AC_DEFINE_UNQUOTED(CPU_STRUCT_ALIGN, $bird_cv_c_struct_align)
|
|
])
|
|
|
|
AC_DEFUN(BIRD_CHECK_TIME_T,
|
|
[AC_CACHE_CHECK([characteristics of time_t], bird_cv_type_time_t, [
|
|
AC_TRY_RUN([
|
|
#include <stdio.h>
|
|
#include <sys/time.h>
|
|
#include <limits.h>
|
|
|
|
int main(void)
|
|
{
|
|
FILE *f = fopen("conftestresult", "w");
|
|
if (!f) return 10;
|
|
fprintf(f, "%d-bit ", sizeof(time_t)*CHAR_BIT);
|
|
if ((time_t) -1 > 0) fprintf(f, "un");
|
|
fprintf(f, "signed");
|
|
fclose(f);
|
|
exit(0);
|
|
}
|
|
],[bird_cv_type_time_t=`cat conftestresult`
|
|
],[ AC_MSG_RESULT([test program failed])
|
|
AC_MSG_ERROR([Cannot determine time_t size and signedness.])
|
|
],[bird_cv_type_time_t="32-bit signed"])
|
|
])
|
|
case "$bird_cv_type_time_t" in
|
|
*64-bit*) AC_DEFINE(TIME_T_IS_64BIT) ;;
|
|
esac
|
|
case "$bird_cv_type_time_t" in
|
|
*unsigned*) ;;
|
|
*) AC_DEFINE(TIME_T_IS_SIGNED) ;;
|
|
esac
|
|
])
|
|
|
|
AC_DEFUN(BIRD_CHECK_STRUCT_IP_MREQN,
|
|
[AC_CACHE_CHECK([for struct ip_mreqn], bird_cv_struct_ip_mreqn,[
|
|
AC_TRY_COMPILE([#include <netinet/in.h>
|
|
],[struct ip_mreqn x;
|
|
],[bird_cv_struct_ip_mreqn=yes
|
|
],[bird_cv_struct_ip_mreqn=no
|
|
])])
|
|
if test "$bird_cv_struct_ip_mreqn" = yes ; then
|
|
AC_DEFINE(HAVE_STRUCT_IP_MREQN)
|
|
fi
|
|
])
|
|
|
|
AC_DEFUN(BIRD_CHECK_LINUX_VERSION,
|
|
[AC_CACHE_CHECK([Linux kernel version], bird_cv_sys_linux_version, [
|
|
AC_REQUIRE_CPP()dnl
|
|
cat > conftest.$ac_ext <<EOF
|
|
[#]line __oline__ "configure"
|
|
#include "confdefs.h"
|
|
#include <linux/version.h>
|
|
VERSION: UTS_RELEASE
|
|
EOF
|
|
bird_cv_sys_linux_version=`eval "$ac_cpp conftest.$ac_ext" 2>&AC_FD_CC | sed '/^VERSION/!d;s/^VERSION: "//;s/".*//'`
|
|
rm -rf conftest*
|
|
if test -z "$bird_cv_sys_linux_version" ; then
|
|
AC_MSG_RESULT([unknown])
|
|
AC_MSG_ERROR([Cannot determine kernel version])
|
|
fi
|
|
])])
|
|
|
|
# BIRD_CHECK_PROG_FLAVOR_GNU(PROGRAM-PATH, IF-SUCCESS, [IF-FAILURE])
|
|
# copied autoconf internal _AC_PATH_PROG_FLAVOR_GNU
|
|
m4_define([BIRD_CHECK_PROG_FLAVOR_GNU],
|
|
[# Check for GNU $1
|
|
case `"$1" --version 2>&1` in
|
|
*GNU*)
|
|
$2;;
|
|
m4_ifval([$3],
|
|
[*)
|
|
$3;;
|
|
])esac
|
|
])#
|