7a855725f2
The patch allows to use autoreconf, replaces some long obsolete constructs and does some other minor cleanups. Also, the file configure.in is renamed to configure.ac, as the old name has been deprecated for a long time. Thanks to Ruben Kerkhof for the patchset.
183 lines
4.7 KiB
Plaintext
183 lines
4.7 KiB
Plaintext
dnl ** Additional Autoconf tests for BIRD configure script
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dnl ** (c) 1999 Martin Mares <mj@ucw.cz>
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AC_DEFUN([BIRD_CHECK_INTEGERS],
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[AC_CHECK_SIZEOF(char, 0)
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AC_CHECK_SIZEOF(short int, 0)
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AC_CHECK_SIZEOF(int, 0)
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AC_CHECK_SIZEOF(long int, 0)
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AC_CHECK_SIZEOF(long long int, 0)
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AH_TEMPLATE([INTEGER_8], [8-bit integer type])
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AH_TEMPLATE([INTEGER_16], [16-bit integer type])
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AH_TEMPLATE([INTEGER_32], [32-bit integer type])
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AH_TEMPLATE([INTEGER_64], [64-bit integer type])
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for size in 1 2 4 8; do
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bits=`expr $size "*" 8`
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AC_MSG_CHECKING([for $bits-bit type])
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if test $ac_cv_sizeof_int = $size ; then
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res=int
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elif test $ac_cv_sizeof_char = $size ; then
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res=char
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elif test $ac_cv_sizeof_short_int = $size ; then
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res="short int"
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elif test $ac_cv_sizeof_long_int = $size ; then
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res="long int"
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elif test $ac_cv_sizeof_long_long_int = $size ; then
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res="long long int"
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else
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AC_MSG_RESULT([not found])
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AC_MSG_ERROR([Cannot find $bits-bit integer type.])
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fi
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AC_MSG_RESULT($res)
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AC_DEFINE_UNQUOTED(INTEGER_$bits, $res)
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done
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])
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dnl BIRD_CHECK_ENDIAN is unused and obsolete
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AC_DEFUN([BIRD_CHECK_ENDIAN],
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[AC_CACHE_CHECK([CPU endianity], bird_cv_c_endian,[
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AC_TRY_RUN([
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#include <stdio.h>
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unsigned int x = 0x12345678;
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unsigned char *z = (unsigned char *) &x;
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int main(void)
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{
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FILE *f = fopen("conftestresult", "w");
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if (!f) return 10;
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fprintf(f, "%02x %02x %02x %02x", *z, *(z+1), *(z+2), *(z+3));
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fclose(f);
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exit(0);
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}
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],[
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endian=`cat conftestresult`
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if test "$endian" = "12 34 56 78" ; then
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bird_cv_c_endian=big-endian
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elif test "$endian" = "78 56 34 12" ; then
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bird_cv_c_endian=little-endian
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fi
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],[endian="test program failed"],[endian="not available, we're cross compiling"])
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if test -z "$bird_cv_c_endian" ; then
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AC_MSG_RESULT($endian)
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AC_MSG_ERROR([Cannot determine CPU endianity.])
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fi
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])
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case $bird_cv_c_endian in
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big-endian) AC_DEFINE(CPU_BIG_ENDIAN) ;;
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little-endian) AC_DEFINE(CPU_LITTLE_ENDIAN) ;;
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esac
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])
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AC_DEFUN([BIRD_CHECK_STRUCT_ALIGN],
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[AC_CACHE_CHECK([usual alignment of structures],bird_cv_c_struct_align,[
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AC_TRY_RUN([
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#include <stdio.h>
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struct { char x; long int y; } ary[2];
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int main(void)
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{
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FILE *f = fopen("conftestresult", "w");
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if (!f) return 10;
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fprintf(f, "%d", sizeof(ary)/2);
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fclose(f);
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exit(0);
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}
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],[
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bird_cv_c_struct_align=`cat conftestresult`
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],[
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AC_MSG_RESULT([test program failed])
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AC_MSG_ERROR([Cannot determine structure alignment])
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],[bird_cv_c_struct_align=16])
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])
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AC_DEFINE_UNQUOTED([CPU_STRUCT_ALIGN], [$bird_cv_c_struct_align], [Usual alignment of structures])
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])
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AC_DEFUN([BIRD_CHECK_TIME_T],
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[AC_CACHE_CHECK([characteristics of time_t], bird_cv_type_time_t, [
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AC_TRY_RUN([
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#include <stdio.h>
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#include <sys/time.h>
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#include <limits.h>
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int main(void)
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{
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FILE *f = fopen("conftestresult", "w");
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if (!f) return 10;
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fprintf(f, "%d-bit ", sizeof(time_t)*CHAR_BIT);
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if ((time_t) -1 > 0) fprintf(f, "un");
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fprintf(f, "signed");
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fclose(f);
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exit(0);
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}
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],[bird_cv_type_time_t=`cat conftestresult`
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],[ AC_MSG_RESULT([test program failed])
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AC_MSG_ERROR([Cannot determine time_t size and signedness.])
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],[bird_cv_type_time_t="32-bit signed"])
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])
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case "$bird_cv_type_time_t" in
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*64-bit*) AC_DEFINE([TIME_T_IS_64BIT], [1], [Define to 1 if time_t is 64 bit]) ;;
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esac
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case "$bird_cv_type_time_t" in
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*unsigned*) ;;
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*) AC_DEFINE([TIME_T_IS_SIGNED], [1], [Define to 1 if time_t is signed]) ;;
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esac
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])
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AC_DEFUN([BIRD_CHECK_STRUCT_IP_MREQN],
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[AC_CACHE_CHECK([for struct ip_mreqn], bird_cv_struct_ip_mreqn,[
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AC_TRY_COMPILE([#include <netinet/in.h>
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],[struct ip_mreqn x;
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],[bird_cv_struct_ip_mreqn=yes
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],[bird_cv_struct_ip_mreqn=no
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])])
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if test "$bird_cv_struct_ip_mreqn" = yes ; then
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AC_DEFINE([HAVE_STRUCT_IP_MREQN], [1], [Define to 1 if you have struct ip_mreqn])
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fi
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])
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AC_DEFUN([BIRD_CHECK_PTHREADS],
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[
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bird_tmp_cflags="$CFLAGS"
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CFLAGS="$CFLAGS -pthread"
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AC_CACHE_CHECK([whether POSIX threads are available], bird_cv_lib_pthreads,
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[AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <pthread.h>]], [[pthread_t pt; pthread_create(&pt, NULL, NULL, NULL); pthread_spinlock_t lock; pthread_spin_lock(&lock); ]])],
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[bird_cv_lib_pthreads=yes], [bird_cv_lib_pthreads=no])])
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CFLAGS="$bird_tmp_cflags"
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])
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AC_DEFUN([BIRD_CHECK_GCC_OPTION],
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[
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bird_tmp_cflags="$CFLAGS"
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CFLAGS="$3 $2"
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AC_CACHE_CHECK([whether CC supports $2], $1,
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[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([])], [$1=yes], [$1=no])])
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CFLAGS="$bird_tmp_cflags"
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])
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AC_DEFUN([BIRD_ADD_GCC_OPTION],
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[
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if test "$$1" = yes ; then
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CFLAGS="$CFLAGS $2"
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fi
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])
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# BIRD_CHECK_PROG_FLAVOR_GNU(PROGRAM-PATH, IF-SUCCESS, [IF-FAILURE])
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# copied autoconf internal _AC_PATH_PROG_FLAVOR_GNU
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m4_define([BIRD_CHECK_PROG_FLAVOR_GNU],
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[# Check for GNU $1
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case `"$1" --version 2>&1` in
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*GNU*)
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$2;;
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m4_ifval([$3],
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[*)
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$3;;
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])esac
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])#
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