X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=configure.com;h=547e5d4a5564063741eaaae4b6b8fb136d193f3d;hb=c568a9d1864be7bd340b9735735b6a68182a27fe;hp=ee0f1cce535ff92ad2b82f08f96a629bde16efd2;hpb=83d8c2948ced54f03b61a7f8d341392ec3470d96;p=p5sagit%2Fp5-mst-13.2.git

diff --git a/configure.com b/configure.com
index ee0f1cc..547e5d4 100644
--- a/configure.com
+++ b/configure.com
@@ -3183,9 +3183,8 @@ $! perllibs should be libs with all non-core libs (such as gdbm) removed.
 $!
 $ perllibs=libs
 $!
-$! Are we 64 bit?
 $!
-$ IF use64bitint .OR. use64bitint .EQS. "define"
+$ IF archname .NES. "VMS_VAX"
 $ THEN
 $   d_PRId64 = "define"
 $   d_PRIu64 = "define"
@@ -3201,7 +3200,11 @@ $   sPRIx64 = """Lx"""
 $   d_quad = "define"
 $   quadtype = "long long"
 $   uquadtype = "unsigned long long"
-$   quadkind  = "QUAD_IS_LONG_LONG"
+$   quadkind  = "3"
+$!
+$   d_frexpl = "define"
+$   d_modfl = "define"
+$   d_modflproto = "define"
 $ ELSE
 $   d_PRId64 = "undef"
 $   d_PRIXU64 = "undef"
@@ -3215,17 +3218,10 @@ $   sPRIo64 = ""
 $   sPRIu64 = ""
 $   sPRIx64 = ""
 $   d_quad = "undef"
-$   quadtype = "long"
-$   uquadtype = "unsigned long"
-$   quadkind  = "QUAD_IS_LONG"
-$ ENDIF
+$   quadtype = "undef"
+$   uquadtype = "undef"
+$   quadkind  = "undef"
 $!
-$ IF archname .NES. "VMS_VAX"
-$ THEN
-$   d_frexpl = "define"
-$   d_modfl = "define"
-$   d_modflproto = "define"
-$ ELSE
 $   d_frexpl = "undef"
 $   d_modfl = "undef"
 $   d_modflproto = "undef"
@@ -3952,6 +3948,12 @@ $ tmp = "sys/mode.h"
 $ GOSUB inhdr
 $ i_sysmode = tmp
 $!
+$! Check for poll.h
+$!
+$ tmp = "sys/poll.h"
+$ gosub inhdr
+$ i_syspoll = tmp
+$!
 $! Check for sys/access.h
 $!
 $ tmp = "sys/access.h"
@@ -5483,53 +5485,102 @@ $ echo "(IV will be ""''ivtype'"", ''ivsize' bytes)"
 $ echo "(UV will be ""''uvtype'"", ''uvsize' bytes)"
 $ echo "(NV will be ""''nvtype'"", ''nvsize' bytes)"
 $!
-$ echo4 "Checking whether your NVs can preserve your UVs..."
+$ d_nv_preserves_uv = "undef"
+$ echo4 "Checking how many bits of your UVs your NVs can preserve..."
 $ OS
 $ WS "#if defined(__DECC) || defined(__DECCXX)"
 $ WS "#include <stdlib.h>"
 $ WS "#endif"
 $ WS "#include <stdio.h>"
 $ WS "int main() {"
-$ WS "    ''uvtype' k = (''uvtype')~0, l;"
-$ WS "    ''nvtype' d;"
-$ WS "    l = k;"
-$ WS "    d = (''nvtype')l;"
-$ WS "    l = (''uvtype')d;"
-$ WS "    if (l == k)"
-$ WS "       printf(""preserve\n"");"
+$ WS "    ''uvtype' u = 0;"
+$ WS "    int     n = 8 * ''uvsize';"
+$ WS "    int     i;"
+$ WS "    for (i = 0; i < n; i++) {"
+$ WS "      u = u << 1 | (''uvtype')1;"
+$ WS "      if ((''uvtype')(''nvtype')u != u)"
+$ WS "        break;"
+$ WS "    }"
+$ WS "    printf(""%d\n"", i);"
 $ WS "    exit(0);"
 $ WS "}"
 $ CS
 $ GOSUB compile
-$ IF tmp .EQS. "preserve"
-$ THEN 
+$ nv_preserves_uv_bits = tmp
+$ IF F$INTEGER(nv_preserves_uv_bits) .GE. (F$INTEGER(uvsize) * 8)
+$ THEN
 $   d_nv_preserves_uv = "define"
-$   echo "Yes, they can." 
-$   nv_preserves_uv_bits = F$STRING(F$INTEGER(uvsize) * 8)
+$   echo "Your NVs can preserve all ''nv_preserves_uv_bits' bits of your UVs."
 $ ELSE
-$   d_nv_preserves_uv = "undef"
-$   echo "No, they can't."
-$   echo4 "Checking how many bits of your UVs your NVs can preserve..."
-$   OS
-$   WS "#if defined(__DECC) || defined(__DECCXX)"
-$   WS "#include <stdlib.h>"
-$   WS "#endif"
-$   WS "#include <stdio.h>"
-$   WS "int main() {"
-$   WS "    ''uvtype' u = 0;"
-$   WS "    int     n = 8 * ''uvsize';"
-$   WS "    int     i;"
-$   WS "    for (i = 0; i < n; i++) {"
-$   WS "      u = u << 1 | (''uvtype')1;"
-$   WS "      if ((''uvtype')(''nvtype')u != u)"
-$   WS "        break;"
-$   WS "    }"
-$   WS "    printf(""%d\n"", i);"
-$   WS "    exit(0);"
-$   WS "}"
-$   CS
-$   GOSUB compile
-$   nv_preserves_uv_bits = tmp
+$   d_nv_preserves_uv = "undef""
+$   echo "Your NVs can preserve only ''nv_preserves_uv_bits' bits of your UVs."	
+$ ENDIF
+$!
+$ nv_overflows_integers_at = "0"
+$ echo4 "Checking to find the largest integer value your NVs can hold..."
+$ OS
+$ WS "#include <stdio.h>"
+$ WS ""
+$ WS "typedef ''nvtype' NV;"
+$ WS ""
+$ WS "int"
+$ WS "main() {"
+$ WS "  NV value = 2;"
+$ WS "  int count = 1;"
+$ WS ""
+$ WS "  while(count < 256) {"
+$ WS "    volatile NV up = value + 1.0;"
+$ WS "    volatile NV negated = -value;"
+$ WS "    volatile NV down = negated - 1.0;"
+$ WS "    volatile NV got_up = up - value;"
+$ WS "    int up_good = got_up == 1.0;"
+$ WS "    int got_down = down - negated;"
+$ WS "    int down_good = got_down == -1.0;"
+$ WS ""
+$ WS "    if (down_good != up_good) {"
+$ WS "      fprintf(stderr,"
+$ WS "              ""Inconsistency - up %d %f; down %d %f; for 2**%d (%.20f)\n"","
+$ WS "              up_good, (double) got_up, down_good, (double) got_down,"
+$ WS "              count, (double) value);"
+$ WS "      return 1;"
+$ WS "    }"
+$ WS "    if (!up_good) {"
+$ WS "      while (1) {"
+$ WS "        if (count > 8) {"
+$ WS "          count -= 8;"
+$ WS "          fputs(""256.0"", stdout);"
+$ WS "        } else {"
+$ WS "          count--;"
+$ WS "          fputs(""2.0"", stdout);"
+$ WS "        }"
+$ WS "        if (!count) {"
+$ WS "          puts("""");"
+$ WS "          return 0;"
+$ WS "        }"
+$ WS "        fputs(""*"", stdout);"
+$ WS "      }"
+$ WS "    }"
+$ WS "    value *= 2;"
+$ WS "    ++count;"
+$ WS "  }"
+$ WS "  fprintf(stderr, ""Cannot overflow integer range, even at 2**%d (%.20f)\n"","
+$ WS "          count, (double) value);"
+$ WS "  return 1;"
+$ WS "}"
+$ CS
+$ GOSUB compile
+$ IF F$LENGTH(tmp) .GT. 0
+$ THEN
+$   IF F$EXTRACT(0,1,tmp) .EQS. "2"
+$   THEN
+$     echo "The largest integer your NVs can preserve is equal to ''tmp'"
+$     nv_overflows_integers_at = tmp
+$   ELSE
+$     echo "Cannot determine the largest integer value your NVs can hold, unexpected output"
+$     echo "''tmp'"
+$   ENDIF
+$ ELSE
+$   echo "Cannot determine the largest integer value your NVs can hold"
 $ ENDIF
 $!
 $! Check for signbit (must already know nvtype)
@@ -5939,6 +5990,7 @@ $ WC "d_nanosleep='" + d_nanosleep + "'"
 $ WC "d_nice='define'"
 $ WC "d_nl_langinfo='" + d_nl_langinfo + "'"
 $ WC "d_nv_preserves_uv='" + d_nv_preserves_uv + "'"
+$ WC "nv_overflows_integers_at='" + nv_overflows_integers_at + "'"
 $ WC "nv_preserves_uv_bits='" + nv_preserves_uv_bits + "'"
 $ WC "d_nv_zero_is_allbits_zero='define'"
 $ WC "d_off64_t='" + d_off64_t + "'"
@@ -6076,6 +6128,7 @@ $ WC "d_tcsetpgrp='undef'"
 $ WC "d_telldir='define'"
 $ WC "d_telldirproto='define'"
 $ WC "d_time='define'"
+$ WC "d_timegm='undef'"
 $ WC "d_times='define'"
 $ IF ("''F$EXTRACT(1,3, F$GETSYI(""VERSION""))'".GES."7.0")
 $ THEN
@@ -6180,6 +6233,8 @@ $ WC "i_float='define'"
 $ WC "i_fp='undef'"
 $ WC "i_fp_class='undef'"
 $ WC "i_gdbm='undef'"
+$ WC "i_gdbm_ndbm='undef'"
+$ WC "i_gdbmndbm='undef'"
 $ WC "i_grp='" + i_grp + "'"
 $ WC "i_ieeefp='undef'"
 $ WC "i_inttypes='" + i_inttypes + "'"
@@ -6189,6 +6244,7 @@ $ WC "i_limits='define'"
 $ WC "i_locale='" + i_locale + "'"
 $ WC "i_machcthr='undef'"
 $ WC "i_machcthreads='undef'"
+$ WC "i_mallocmalloc='undef'"
 $ WC "i_math='define'"
 $ WC "i_memory='undef'"
 $ WC "i_mntent='undef'"
@@ -6221,6 +6277,7 @@ $ WC "i_sysmode='" + i_sysmode + "'"
 $ WC "i_sysmount='undef'"
 $ WC "i_sysndir='undef'"
 $ WC "i_sysparam='undef'"
+$ WC "i_syspoll='" + i_syspoll + "'"
 $ WC "i_sysresrc='undef'"
 $ WC "i_syssecrt='" + i_syssecrt + "'"
 $ WC "i_sysselct='undef'"