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root/cebix/BasiliskII/src/Unix/configure.in

Comparing BasiliskII/src/Unix/configure.in (file contents):
Revision 1.62 by gbeauche, 2002-09-13T12:51:24Z vs.
Revision 1.63 by gbeauche, 2002-09-16T12:03:07Z

#	Line 13 | Line 13 | AC_ARG_ENABLE(vosf,          [  --enable
13
14		dnl FPU emulation core.
15		AC_ARG_ENABLE(fpe,
16	<	[  --enable-fpe=which      specify which fpu emulator to use [default=opt]],
16	>	[  --enable-fpe=FPE        specify which fpu emulator to use [default=auto]],
17		[ case "$enableval" in
18	<	dnl default is fpu_x86.cpp if i386 architecture, fpu_uae.cpp otherwise
19	<	default)    FPE_CORE="default";;
20	<	ieee)               FPE_CORE="ieee";;
21	<	uae)            FPE_CORE="uae";;
22	<	*)                      AC_MSG_ERROR([--enable-fpe takes only one of the following values: default, uae, ieee]);;
18	>	dnl default is always ieee, if architecture has this fp format
19	>	auto)       FPE_CORE_TEST_ORDER="ieee uae";;
20	>	ieee)       FPE_CORE_TEST_ORDER="ieee";;
21	>	uae)        FPE_CORE_TEST_ORDER="uae";;
22	>	x86)        FPE_CORE_TEST_ORDER="x86";;
23	>	*)              AC_MSG_ERROR([--enable-fpe takes only one of the following values: auto, x86, ieee, uae]);;
24		esac
25		],
26	<	[ FPE_CORE="default"
26	>	[ FPE_CORE_TEST_ORDER="ieee uae"
27		])
28
29		dnl Addressing modes.
#	Line 795 | Line 796 | fi
796		dnl Select appropriate CPU source and REGPARAM define.
797		ASM_OPTIMIZATIONS=none
798		CPUSRCS="cpuemu1.cpp cpuemu2.cpp cpuemu3.cpp cpuemu4.cpp cpuemu5.cpp cpuemu6.cpp cpuemu7.cpp cpuemu8.cpp"
798	–	FPUSRCS="../uae_cpu/fpu/fpu_uae.cpp"
799		if [[ "x$HAVE_GCC27" = "xyes" -a "x$HAVE_I386" = "xyes" -a "x$OS_TYPE" != "xfreebsd" ]]; then
800		dnl i386 CPU
801		DEFINES="$DEFINES -DREGPARAM=\"__attribute__((regparm(3)))\""
#	Line 803 | Line 803 | if [[ "x$HAVE_GCC27" = "xyes" -a "x$HAVE
803		ASM_OPTIMIZATIONS=i386
804		DEFINES="$DEFINES -DX86_ASSEMBLY -DUNALIGNED_PROFITABLE -DOPTIMIZED_FLAGS"
805		CPUSRCS="cpufast1.s cpufast2.s cpufast3.s cpufast4.s cpufast5.s cpufast6.s cpufast7.s cpufast8.s"
806	–	FPUSRCS="../uae_cpu/fpu_x86.cpp"
806		fi
807		elif [[ "x$HAVE_GCC27" = "xyes" -a "x$HAVE_SPARC" = "xyes" -a "x$HAVE_GAS" = "xyes" ]]; then
808		dnl SPARC CPU
#	Line 834 | Line 833 | elif [[ "x$WANT_NATIVE_M68K" = "xyes" ]]
833		CPUSRCS="asm_support.s"
834		fi
835
836	<	dnl Select appropriate FPU source.
837	<	dnl 1. Optimized X86 assembly core if target is i386 architecture.
838	<	SAVED_DEFINES=$DEFINES
839	<	if [[ "x$FPE_CORE" = "xdefault" ]]; then
840	<	if [[ "x$HAVE_GCC27" = "xyes" -a "x$HAVE_I386" = "xyes" -a "x$HAVE_GAS" = "xyes" ]]; then
841	<	DEFINES="$DEFINES -DFPU_X86"
842	<	FPE_CORE_STR="i386 optimized core"
843	<	FPUSRCS="../uae_cpu/fpu/fpu_x86.cpp"
844	<	FPE_CORE="i386"
836	>	dnl Utility macro used by next two tests.
837	>	dnl AC_EXAMINE_OBJECT(C source code,
838	>	dnl     commands examining object file,
839	>	dnl     [commands to run if compile failed]):
840	>	dnl
841	>	dnl Compile the source code to an object file; then convert it into a
842	>	dnl printable representation.  All unprintable characters and
843	>	dnl asterisks (*) are replaced by dots (.).  All white space is
844	>	dnl deleted.  Newlines (ASCII 0x10) in the input are preserved in the
845	>	dnl output, but runs of newlines are compressed to a single newline.
846	>	dnl Finally, line breaks are forcibly inserted so that no line is
847	>	dnl longer than 80 columns and the file ends with a newline.  The
848	>	dnl result of all this processing is in the file conftest.dmp, which
849	>	dnl may be examined by the commands in the second argument.
850	>	dnl
851	>	AC_DEFUN([gcc_AC_EXAMINE_OBJECT],
852	>	[AC_LANG_SAVE
853	>	AC_LANG_C
854	>	dnl Next bit cribbed from AC_TRY_COMPILE.
855	>	cat > conftest.$ac_ext <<EOF
856	>	[#line __oline__ "configure"
857	>	#include "confdefs.h"
858	>	$1
859	>	]EOF
860	>	if AC_TRY_EVAL(ac_compile); then
861	>	od -c conftest.o |
862	>	sed ['s/^[0-7]*[    ]*/ /
863	>	s/\*/./g
864	>	s/ \\n/*/g
865	>	s/ [0-9][0-9][0-9]/./g
866	>	s/  \\[^ ]/./g'] |
867	>	tr -d '
868	>	' | tr -s '*' '
869	>	' | fold | sed '$a\
870	>	' > conftest.dmp
871	>	$2
872	>	ifelse($3, , , else
873	>	$3
874	>	)dnl
875	>	fi
876	>	rm -rf conftest*
877	>	AC_LANG_RESTORE])
878	>
879	>	dnl Floating point format probe.
880	>	dnl The basic concept is the same as the above: grep the object
881	>	dnl file for an interesting string.  We have to watch out for
882	>	dnl rounding changing the values in the object, however; this is
883	>	dnl handled by ignoring the least significant byte of the float.
884	>	dnl
885	>	dnl Does not know about VAX G-float or C4x idiosyncratic format.
886	>	dnl It does know about PDP-10 idiosyncratic format, but this is
887	>	dnl not presently supported by GCC.  S/390 "binary floating point"
888	>	dnl is in fact IEEE (but maybe we should have that in EBCDIC as well
889	>	dnl as ASCII?)
890	>	dnl
891	>	AC_DEFUN([gcc_AC_C_FLOAT_FORMAT],
892	>	[AC_CACHE_CHECK(floating point format, ac_cv_c_float_format,
893	>	[gcc_AC_EXAMINE_OBJECT(
894	>	[/* This will not work unless sizeof(double) == 8.  */
895	>	extern char sizeof_double_must_be_8 [sizeof(double) == 8 ? 1 : -1];
896	>
897	>	/* This structure must have no internal padding.  */
898	>	struct possibility {
899	>	char prefix[8];
900	>	double candidate;
901	>	char postfix[8];
902	>	};
903	>
904	>	#define C(cand) { "\nformat:", cand, ":tamrof\n" }
905	>	struct possibility table [] =
906	>	{
907	>	C( 3.25724264705901305206e+01), /* @@IEEEFP - IEEE 754 */
908	>	C( 3.53802595280598432000e+18), /* D__float - VAX */
909	>	C( 5.32201830133125317057e-19), /* D.PDP-10 - PDP-10 - the dot is 0x13a */
910	>	C( 1.77977764695171661377e+10), /* IBMHEXFP - s/390 format, ascii */
911	>	C(-5.22995989424860458374e+10)  /* IBMHEXFP - s/390 format, EBCDIC */
912	>	};],
913	>	[if   grep 'format:.@IEEEF.:tamrof' conftest.dmp >/dev/null 2>&1; then
914	>	ac_cv_c_float_format='IEEE (big-endian)'
915	>	elif grep 'format:.I@@PFE.:tamrof' conftest.dmp >/dev/null 2>&1; then
916	>	ac_cv_c_float_format='IEEE (big-endian)'
917	>	elif grep 'format:.FEEEI@.:tamrof' conftest.dmp >/dev/null 2>&1; then
918	>	ac_cv_c_float_format='IEEE (little-endian)'
919	>	elif grep 'format:.EFP@@I.:tamrof' conftest.dmp >/dev/null 2>&1; then
920	>	ac_cv_c_float_format='IEEE (little-endian)'
921	>	elif grep 'format:.__floa.:tamrof' conftest.dmp >/dev/null 2>&1; then
922	>	ac_cv_c_float_format='VAX D-float'
923	>	elif grep 'format:..PDP-1.:tamrof' conftest.dmp >/dev/null 2>&1; then
924	>	ac_cv_c_float_format='PDP-10'
925	>	elif grep 'format:.BMHEXF.:tamrof' conftest.dmp >/dev/null 2>&1; then
926	>	ac_cv_c_float_format='IBM 370 hex'
927		else
928	<	FPE_CORE="uae"
929	<	fi
928	>	AC_MSG_ERROR(Unknown floating point format)
929	>	fi],
930	>	[AC_MSG_ERROR(compile failed)])
931	>	])
932	>	# IEEE is the default format.  If the float endianness isn't the same
933	>	# as the integer endianness, we have to set FLOAT_WORDS_BIG_ENDIAN
934	>	# (which is a tristate: yes, no, default).  This is only an issue with
935	>	# IEEE; the other formats are only supported by a few machines each,
936	>	# all with the same endianness.
937	>	format=IEEE_FLOAT_FORMAT
938	>	fbigend=
939	>	case $ac_cv_c_float_format in
940	>	'IEEE (big-endian)' )
941	>	if test $ac_cv_c_bigendian = no; then
942	>	fbigend=1
943	>	fi
944	>	;;
945	>	'IEEE (little-endian)' )
946	>	if test $ac_cv_c_bigendian = yes; then
947	>	fbigend=0
948	>	fi
949	>	;;
950	>	'VAX D-float' )
951	>	format=VAX_FLOAT_FORMAT
952	>	;;
953	>	'PDP-10' )
954	>	format=PDP10_FLOAT_FORMAT
955	>	;;
956	>	'IBM 370 hex' )
957	>	format=IBM_FLOAT_FORMAT
958	>	;;
959	>	esac
960	>	AC_DEFINE_UNQUOTED(HOST_FLOAT_FORMAT, $format,
961	>	[Define to the floating point format of the host machine.])
962	>	if test -n "$fbigend"; then
963	>	AC_DEFINE_UNQUOTED(HOST_FLOAT_WORDS_BIG_ENDIAN, $fbigend,
964	>	[Define to 1 if the host machine stores floating point numbers in
965	>	memory with the word containing the sign bit at the lowest address,
966	>	or to 0 if it does it the other way around.
967	>
968	>	This macro should not be defined if the ordering is the same as for
969	>	multi-word integers.])
970		fi
971	+	])
972	+
973	+	dnl Select appropriate FPU source.
974	+	gcc_AC_C_FLOAT_FORMAT
975	+	AC_CHECK_HEADERS(ieee754.h ieeefp.h floatingpoint.h nan.h)
976
977	<	dnl 2. JIT-FPU only supports IEEE-based implementation.
978	<	if [[ "x$WANT_JIT_FPU" = "xyes" -a "x$FPE_CORE" != "xieee" ]]; then
979	<	AC_MSG_WARN([Sorry, JIT-FPU supports only the "ieee" FPE implementation])
980	<	FPE_CORE="ieee"
981	<	dnl Restore previous variables. FPE_CORE_STR and FPUSRCS are overwritten
982	<	DEFINES=$SAVED_DEFINES
983	<	fi
984	<
985	<	dnl 3. Choose either IEEE-based implementation or the old UAE core.
986	<	if [[ "x$FPE_CORE" = "xieee" ]]; then
987	<	AC_CHECK_HEADERS(fenv.h)
988	<	AC_CHECK_FUNCS(feclearexcept fegetexceptflag feraiseexcept fesetexceptflag fetestexcept)
989	<	AC_CHECK_FUNCS(fegetround fesetround)
990	<	DEFINES="$DEFINES -DFPU_IEEE"
991	<	FPE_CORE_STR="ieee-based fpu core"
992	<	FPUSRCS="../uae_cpu/fpu/fpu_ieee.cpp"
993	<	elif [[ "x$FPE_CORE" = "xuae" ]]; then
994	<	DEFINES="$DEFINES -DFPU_UAE"
995	<	FPE_CORE_STR="original uae core"
996	<	FPUSRCS="../uae_cpu/fpu/fpu_uae.cpp"
977	>	for fpe in $FPE_CORE_TEST_ORDER; do
978	>	case $fpe in
979	>	ieee)
980	>	if echo "$ac_cv_c_float_format" | grep -q IEEE; then
981	>	FPE_CORE="IEEE fpu core"
982	>	DEFINES="$DEFINES -DFPU_IEEE"
983	>	FPUSRCS="../uae_cpu/fpu/fpu_ieee.cpp"
984	>	break
985	>	fi
986	>	;;
987	>	x86)
988	>	if [[ ":$HAVE_GCC27:$HAVE_I386:$HAVE_GAS:" = ":yes:yes:yes:" ]]; then
989	>	FPE_CORE="i387 fpu core"
990	>	DEFINES="$DEFINES -DFPU_X86"
991	>	FPUSRCS="../uae_cpu/fpu/fpu_x86.cpp"
992	>	break
993	>	fi
994	>	;;
995	>	uae)
996	>	FPE_CORE="uae fpu core"
997	>	DEFINES="$DEFINES -DFPU_UAE"
998	>	FPUSRCS="../uae_cpu/fpu/fpu_uae.cpp"
999	>	break
1000	>	;;
1001	>	*)
1002	>	AC_MSG_ERROR([Internal configure.in script error for $fpe fpu core])
1003	>	;;
1004	>	esac
1005	>	done
1006	>	if [[ "x$FPE_CORE" = "x" ]]; then
1007	>	AC_MSG_ERROR([Sorry, no suitable FPU core found in $FPE_CORE_TEST_ORDER])
1008		fi
1009
1010		dnl Check for certain math functions
#	Line 914 | Line 1051 | echo ESD sound support .................
1051		echo GTK user interface ..................... : $WANT_GTK
1052		echo mon debugger support ................... : $WANT_MON
1053		echo Running m68k code natively ............. : $WANT_NATIVE_M68K
1054	<	echo Floating-Point emulation core .......... : $FPE_CORE_STR
1054	>	echo Floating-Point emulation core .......... : $FPE_CORE
1055		echo Assembly optimizations ................. : $ASM_OPTIMIZATIONS
1056		echo Addressing mode ........................ : $ADDRESSING_MODE
1057		echo

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