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-rw-r--r--aclocal.m4118
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diff --git a/aclocal.m4 b/aclocal.m4
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+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, $res)
+ done
+])
+
+AC_DEFUN(BIRD_CHECK_ENDIAN,
+[AC_CACHE_CHECK([CPU endianity], bird_cv_c_endian,[
+AC_TRY_RUN([
+#include <stdio.h>
+
+unsigned int x = 0x12345678;
+unsigned char *z = (unsigned char *) &x;
+
+int main(void)
+{
+ FILE *f = fopen("conftestresult", "w");
+ if (!f) return 10;
+ fprintf(f, "%02x %02x %02x %02x", *z, *(z+1), *(z+2), *(z+3));
+ fclose(f);
+ exit(0);
+}
+],[
+ endian=`cat conftestresult`
+ if test "$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
+])