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root/cebix/SheepShaver/src/Unix/configure.ac
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Comparing SheepShaver/src/Unix/configure.ac (file contents):
Revision 1.21 by gbeauche, 2005-03-27T19:05:18Z vs.
Revision 1.29 by gbeauche, 2005-06-25T11:06:24Z

# Line 19 | Line 19 | AC_ARG_ENABLE(jit,          [  --enable-
19   AC_ARG_ENABLE(ppc-emulator, [  --enable-ppc-emulator   use the selected PowerPC emulator [default=auto]], [WANT_EMULATED_PPC=$enableval], [WANT_EMULATED_PPC=auto])
20   AC_ARG_ENABLE(fbdev-dga,    [  --enable-fbdev-dga      use direct frame buffer access via /dev/fb0 [default=yes]], [WANT_FBDEV_DGA=$enableval], [WANT_FBDEV_DGA=yes])
21   AC_ARG_ENABLE(xf86-dga,     [  --enable-xf86-dga       use the XFree86 DGA extension [default=yes]], [WANT_XF86_DGA=$enableval], [WANT_XF86_DGA=yes])
22 < AC_ARG_ENABLE(xf86-vidmode, [  --enable-xf86-vidmode   use the XFree86 VidMode extension [default=no]], [WANT_XF86_VIDMODE=$enableval], [WANT_XF86_VIDMODE=no])
22 > AC_ARG_ENABLE(xf86-vidmode, [  --enable-xf86-vidmode   use the XFree86 VidMode extension [default=yes]], [WANT_XF86_VIDMODE=$enableval], [WANT_XF86_VIDMODE=yes])
23   AC_ARG_ENABLE(vosf,         [  --enable-vosf           enable video on SEGV signals [default=yes]], [WANT_VOSF=$enableval], [WANT_VOSF=yes])
24   AC_ARG_WITH(esd,            [  --with-esd              support ESD for sound under Linux/FreeBSD [default=yes]], [WANT_ESD=$withval], [WANT_ESD=yes])
25   AC_ARG_WITH(gtk,            [  --with-gtk              use GTK user interface [default=yes]],
# Line 123 | Line 123 | dnl Do we need SDL?
123   WANT_SDL=no
124   if [[ "x$WANT_SDL_VIDEO" = "xyes" ]]; then
125    WANT_SDL=yes
126  WANT_FBDEV_DGA=no
126    WANT_XF86_DGA=no
127    WANT_XF86_VIDMODE=no
128    WANT_FBDEV_DGA=no
# Line 186 | Line 185 | no:linux*|no:netbsd*)
185    AC_CHECK_LIB(pthread, pthread_create, , [
186      AC_CHECK_LIB(c_r, pthread_create, , [
187        AC_CHECK_LIB(PTL, pthread_create, , [
188 <        AC_MSG_ERROR([You need pthreads to run Basilisk II.])
188 >        dnl XXX remove when no pthreads case is merged
189 >        AC_MSG_ERROR([You need pthreads to run SheepShaver.])
190 >        HAVE_PTHREADS=no
191        ])
192      ])
193    ])
# Line 194 | Line 195 | no:linux*|no:netbsd*)
195    AC_CHECK_FUNCS(pthread_mutexattr_setprotocol)
196    AC_CHECK_FUNCS(pthread_mutexattr_settype)
197    AC_CHECK_FUNCS(pthread_mutexattr_setpshared)
197  if [[ "x$HAVE_PTHREADS" = "xyes" ]]; then
198    AC_DEFINE(HAVE_PTHREADS, 1, [Define if pthreads are available.])
199  fi
198    dnl If POSIX.4 semaphores are not available, we emulate them with pthread mutexes.
199    SEMSRC=
200    AC_CHECK_FUNCS(sem_init, , [
# Line 206 | Line 204 | no:linux*|no:netbsd*)
204    ])
205    ;;
206   esac
207 + if [[ "x$HAVE_PTHREADS" = "xyes" ]]; then
208 +  AC_DEFINE(HAVE_PTHREADS, 1, [Define if pthreads are available.])
209 + fi
210  
211   dnl We use FBDev DGA if possible.
212   if [[ "x$WANT_FBDEV_DGA" = "xyes" ]]; then
# Line 347 | Line 348 | AC_CHECK_FUNCS(nanosleep)
348   AC_CHECK_FUNCS(sigaction signal)
349   AC_CHECK_FUNCS(mmap mprotect munmap)
350   AC_CHECK_FUNCS(vm_allocate vm_deallocate vm_protect)
351 < AC_CHECK_FUNCS(posix_memalign memalign valloc)
352 < AC_CHECK_FUNCS(exp2f log2f exp2 log2 trunc)
351 > AC_CHECK_FUNCS(exp2f log2f exp2 log2)
352 > AC_CHECK_FUNCS(floorf roundf ceilf truncf floor round ceil trunc)
353  
354   dnl Darwin seems to define mach_task_self() instead of task_self().
355   AC_CHECK_FUNCS(mach_task_self task_self)
# Line 1000 | Line 1001 | EOF
1001   fi
1002   AC_MSG_RESULT($WANT_ADDRESSING_MODE)
1003  
1004 + dnl Utility macro used by next two tests.
1005 + dnl AC_EXAMINE_OBJECT(C source code,
1006 + dnl     commands examining object file,
1007 + dnl     [commands to run if compile failed]):
1008 + dnl
1009 + dnl Compile the source code to an object file; then convert it into a
1010 + dnl printable representation.  All unprintable characters and
1011 + dnl asterisks (*) are replaced by dots (.).  All white space is
1012 + dnl deleted.  Newlines (ASCII 0x10) in the input are preserved in the
1013 + dnl output, but runs of newlines are compressed to a single newline.
1014 + dnl Finally, line breaks are forcibly inserted so that no line is
1015 + dnl longer than 80 columns and the file ends with a newline.  The
1016 + dnl result of all this processing is in the file conftest.dmp, which
1017 + dnl may be examined by the commands in the second argument.
1018 + dnl
1019 + AC_DEFUN([gcc_AC_EXAMINE_OBJECT],
1020 + [AC_LANG_SAVE
1021 + AC_LANG_C
1022 + dnl Next bit cribbed from AC_TRY_COMPILE.
1023 + cat > conftest.$ac_ext <<EOF
1024 + [#line __oline__ "configure"
1025 + #include "confdefs.h"
1026 + $1
1027 + ]EOF
1028 + if AC_TRY_EVAL(ac_compile); then
1029 +  od -c conftest.o |
1030 +    sed ['s/^[0-7]*[    ]*/ /
1031 +          s/\*/./g
1032 +          s/ \\n/*/g
1033 +          s/ [0-9][0-9][0-9]/./g
1034 +          s/  \\[^ ]/./g'] |
1035 +    tr -d '
1036 + ' | tr -s '*' '
1037 + ' | fold | sed '$a\
1038 + ' > conftest.dmp
1039 +  $2
1040 + ifelse($3, , , else
1041 +  $3
1042 + )dnl
1043 + fi
1044 + rm -rf conftest*
1045 + AC_LANG_RESTORE])
1046 +
1047 + dnl Floating point format probe.
1048 + dnl The basic concept is the same as the above: grep the object
1049 + dnl file for an interesting string.  We have to watch out for
1050 + dnl rounding changing the values in the object, however; this is
1051 + dnl handled by ignoring the least significant byte of the float.
1052 + dnl
1053 + dnl Does not know about VAX G-float or C4x idiosyncratic format.
1054 + dnl It does know about PDP-10 idiosyncratic format, but this is
1055 + dnl not presently supported by GCC.  S/390 "binary floating point"
1056 + dnl is in fact IEEE (but maybe we should have that in EBCDIC as well
1057 + dnl as ASCII?)
1058 + dnl
1059 + AC_DEFUN([gcc_AC_C_FLOAT_FORMAT],
1060 + [AC_CACHE_CHECK(floating point format, ac_cv_c_float_format,
1061 + [gcc_AC_EXAMINE_OBJECT(
1062 + [/* This will not work unless sizeof(double) == 8.  */
1063 + extern char sizeof_double_must_be_8 [sizeof(double) == 8 ? 1 : -1];
1064 +
1065 + /* This structure must have no internal padding.  */
1066 + struct possibility {
1067 +  char prefix[8];
1068 +  double candidate;
1069 +  char postfix[8];
1070 + };
1071 +
1072 + #define C(cand) { "\nformat:", cand, ":tamrof\n" }
1073 + struct possibility table [] =
1074 + {
1075 +  C( 3.25724264705901305206e+01), /* @@IEEEFP - IEEE 754 */
1076 +  C( 3.53802595280598432000e+18), /* D__float - VAX */
1077 +  C( 5.32201830133125317057e-19), /* D.PDP-10 - PDP-10 - the dot is 0x13a */
1078 +  C( 1.77977764695171661377e+10), /* IBMHEXFP - s/390 format, ascii */
1079 +  C(-5.22995989424860458374e+10)  /* IBMHEXFP - s/390 format, EBCDIC */
1080 + };],
1081 + [if   grep 'format:.@IEEEF.:tamrof' conftest.dmp >/dev/null 2>&1; then
1082 +    ac_cv_c_float_format='IEEE (big-endian)'
1083 +  elif grep 'format:.I@@PFE.:tamrof' conftest.dmp >/dev/null 2>&1; then
1084 +    ac_cv_c_float_format='IEEE (big-endian)'
1085 +  elif grep 'format:.FEEEI@.:tamrof' conftest.dmp >/dev/null 2>&1; then
1086 +    ac_cv_c_float_format='IEEE (little-endian)'
1087 +  elif grep 'format:.EFP@@I.:tamrof' conftest.dmp >/dev/null 2>&1; then
1088 +    ac_cv_c_float_format='IEEE (little-endian)'
1089 +  elif grep 'format:.__floa.:tamrof' conftest.dmp >/dev/null 2>&1; then
1090 +    ac_cv_c_float_format='VAX D-float'
1091 +  elif grep 'format:..PDP-1.:tamrof' conftest.dmp >/dev/null 2>&1; then
1092 +    ac_cv_c_float_format='PDP-10'
1093 +  elif grep 'format:.BMHEXF.:tamrof' conftest.dmp >/dev/null 2>&1; then
1094 +    ac_cv_c_float_format='IBM 370 hex'
1095 +  else
1096 +    AC_MSG_ERROR(Unknown floating point format)
1097 +  fi],
1098 +  [AC_MSG_ERROR(compile failed)])
1099 + ])
1100 + # IEEE is the default format.  If the float endianness isn't the same
1101 + # as the integer endianness, we have to set FLOAT_WORDS_BIG_ENDIAN
1102 + # (which is a tristate: yes, no, default).  This is only an issue with
1103 + # IEEE; the other formats are only supported by a few machines each,
1104 + # all with the same endianness.
1105 + format=IEEE_FLOAT_FORMAT
1106 + fbigend=
1107 + case $ac_cv_c_float_format in
1108 +    'IEEE (big-endian)' )
1109 +        if test $ac_cv_c_bigendian = no; then
1110 +            fbigend=1
1111 +        fi
1112 +        ;;
1113 +    'IEEE (little-endian)' )
1114 +        if test $ac_cv_c_bigendian = yes; then
1115 +            fbigend=0
1116 +        fi
1117 +        ;;
1118 +    'VAX D-float' )
1119 +        format=VAX_FLOAT_FORMAT
1120 +        ;;
1121 +    'PDP-10' )
1122 +        format=PDP10_FLOAT_FORMAT
1123 +        ;;
1124 +    'IBM 370 hex' )
1125 +        format=IBM_FLOAT_FORMAT
1126 +        ;;
1127 + esac
1128 + AC_DEFINE_UNQUOTED(HOST_FLOAT_FORMAT, $format,
1129 +  [Define to the floating point format of the host machine.])
1130 + if test -n "$fbigend"; then
1131 +        AC_DEFINE_UNQUOTED(HOST_FLOAT_WORDS_BIG_ENDIAN, $fbigend,
1132 +  [Define to 1 if the host machine stores floating point numbers in
1133 +   memory with the word containing the sign bit at the lowest address,
1134 +   or to 0 if it does it the other way around.
1135 +
1136 +   This macro should not be defined if the ordering is the same as for
1137 +   multi-word integers.])
1138 + fi
1139 + ])
1140 +
1141 + dnl Check for host float format
1142 + gcc_AC_C_FLOAT_FORMAT
1143 +
1144   dnl Platform specific binary postprocessor
1145   AC_PATH_PROG(BLESS, "true")
1146   if [[ "x$ac_cv_pagezero_hack" = "xyes" ]]; then
# Line 1034 | Line 1175 | fi
1175   AC_MSG_RESULT($HAVE_ICC)
1176  
1177   dnl Determine the generated object format
1178 < AC_CACHE_CHECK([whether the compiler can generate ELF objects],
1178 > AC_CACHE_CHECK([the format of compiler generated objects],
1179    ac_cv_object_format, [
1180    echo 'int i;' > conftest.$ac_ext
1181    ac_cv_object_format=no
# Line 1043 | Line 1184 | AC_CACHE_CHECK([whether the compiler can
1184      *"ELF"*)
1185        ac_cv_object_format=elf
1186        ;;
1187 +    *"Mach-O"*)
1188 +      ac_cv_object_format=mach
1189 +      ;;
1190      *)
1191        ac_cv_object_format=unknown
1192        ;;
# Line 1055 | Line 1199 | dnl CPU emulator sources
1199   if [[ "x$EMULATED_PPC" = "xyes" ]]; then
1200    CPUSRCS="\
1201      ../kpx_cpu/src/mathlib/ieeefp.cpp \
1202 +    ../kpx_cpu/src/mathlib/mathlib.cpp \
1203      ../kpx_cpu/src/cpu/ppc/ppc-cpu.cpp \
1204      ../kpx_cpu/src/cpu/ppc/ppc-decode.cpp \
1205      ../kpx_cpu/src/cpu/ppc/ppc-execute.cpp \
# Line 1075 | Line 1220 | if [[ "x$EMULATED_PPC" = "xyes" ]]; then
1220        i?86:elf)
1221          ac_cv_use_dyngen=yes
1222          ;;
1223 +      powerpc:mach)
1224 +        ac_cv_use_dyngen=yes
1225 +        ;;
1226        *:*)
1227          ac_cv_use_dyngen=no
1228          ;;
# Line 1092 | Line 1240 | if [[ "x$EMULATED_PPC" = "xyes" ]]; then
1240            done
1241          fi
1242        fi
1243 <      if [[ -z "$DYNGEN_CC" ]] || ! { echo '#include <limits>' | $DYNGEN_CC -xc++ -c -o /dev/null - >& /dev/null; }; then
1243 >      if [[ -z "$DYNGEN_CC" ]]; then
1244          ac_cv_use_dyngen=no
1245        fi
1246      ])
# Line 1100 | Line 1248 | if [[ "x$EMULATED_PPC" = "xyes" ]]; then
1248        case $host_cpu in
1249        i?86)
1250          DYNGEN_OP_FLAGS="-fomit-frame-pointer -mpreferred-stack-boundary=2"
1251 <        if [[ "x$HAVE_GCC30" = "xyes" ]]; then
1252 <          DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -falign-functions=0"
1253 <        else
1254 <          DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -malign-functions=0"
1251 >        ;;
1252 >      powerpc)
1253 >        if [[ "x$ac_cv_object_format" = "xmach" ]]; then
1254 >          DYNGEN_OP_FLAGS="-mdynamic-no-pic"
1255          fi
1256          ;;
1257        esac
1258 <      DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -finline-limit=10000 -g0"
1258 >      if [[ "x$HAVE_GCC30" = "xyes" ]]; then
1259 >        DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -falign-functions=0"
1260 >      else
1261 >        DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -malign-functions=0"
1262 >      fi
1263 >      DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -finline-limit=10000 -fno-exceptions -g0"
1264        if [[ "x$HAVE_GCC30" = "xyes" ]]; then
1265          DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -fno-reorder-blocks -fno-optimize-sibling-calls"
1266        fi
# Line 1133 | Line 1286 | if [[ "x$ac_cv_use_dyngen" = "xyes" ]];
1286    AC_CACHE_CHECK([whether static data regions are executable],
1287      ac_cv_have_static_data_exec, [
1288      AC_TRY_RUN([int main(void) {
1289 < #if defined(__powerpc__)
1289 > #if defined(__powerpc__) || defined(__ppc__)
1290        static unsigned int p[8] = {0x4e800020,};
1291        asm volatile("dcbst 0,%0" : : "r" (p) : "memory");
1292        asm volatile("sync" : : : "memory");

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