Annotation of gforth/configure.in, revision 1.14
1.1 anton 1: dnl Process this file with autoconf to produce a configure script.
1.14 ! anton 2:
1.1 anton 3: AC_INIT(engine.c)
1.14 ! anton 4:
! 5: GCC=${GCC-gcc}
! 6: AC_SUBST(GCC)
! 7:
! 8: dnl configure needs $CC to find out some parameters, and there may be
! 9: dnl differences in what is obtained from gcc and from the default cc.
! 10: dnl Therefore, we define $CC to be gcc:
! 11: CC=$GCC
1.1 anton 12:
13: AC_ARG_ENABLE(force-reg,
14: [ --enable-force-reg Use explicit register declarations if they appear in
15: the machine.h file. This can cause a good speedup,
16: but also incorrect code with some gcc versions on
17: some processors (default disabled).],
18:
19: AC_DEFINE(FORCE_REG))
20: dnl this is not quite according to the autoconf manual, it causes a replacement
21: AC_ARG_ENABLE(direct-threaded,
22: [ --enable-direct-threaded Force direct threading. This may not work on
23: some machines and may cause slowdown on others.
24: (default processor-dependent)],
25: AC_DEFINE(DIRECT_THREADED))
26: AC_ARG_ENABLE(indirect-threaded,
27: [ --enable-indirect-threaded Force indirect threading. This can cause a
28: slowdown on some machines.
29: (default processor-dependent)],
30: AC_DEFINE(INDIRECT_THREADED))
31:
1.9 pazsan 32: AC_ARG_WITH(debug,
1.10 anton 33: [ --with-debug specifies option -g to compile with debug info (default)
1.9 pazsan 34: --without-debug omits the -g switch and creates smaller images on
35: machines where "strip" has problems with gcc style
36: debugging informations.],
37: if test "$withval" = "yes"; then DEBUGFLAG=-g; fi)
38:
39:
1.7 anton 40: AC_SUBST(GCCLDFLAGS)
1.9 pazsan 41: AC_SUBST(DEBUGFLAG)
1.7 anton 42:
1.10 anton 43: dnl the following macro produces a warning with autoconf-2.1
44: AC_CHECK_SIZEOF(char *)
45: case "$ac_cv_sizeof_char_p" in
46: 2)
47: wordsize=16
48: ;;
49: 4)
50: wordsize=32
51: ;;
52: 8)
53: wordsize=64
54: dnl AC_CHECK_SIZEOF(long long)
55: dnl if [ $ac_cv_sizeof_long_long != 16 ]
56: dnl then
57: dnl try the whole thing with -mlonlong128
58: dnl complain about C compiler and OS vendor
59: dnl fi
60: ;;
61: esac
1.9 pazsan 62:
1.1 anton 63: #terminology is a bit unusual here: The host is the system on which
64: #gforth will run; the system on which configure will run is the `build'
65: AC_CANONICAL_HOST
66: case "$host_cpu" in
67: hppa*)
68: mach_h=hppa
1.3 pazsan 69: LIBOBJS="cache.o"
1.6 pazsan 70: LDFLAGS="-Xlinker -N"
71: LIBS="-L/lib/pa1.1/"
1.1 anton 72: ;;
73: sparc*)
74: mach_h=sparc
75: ;;
76: i386|i486|i586)
77: mach_h=386
1.9 pazsan 78: CFLAGS="-fforce-mem -fforce-addr -fomit-frame-pointer"
1.1 anton 79: #!! direct/indirect threading switch
80: #!! -m486 flag
81: ;;
82: m68*)
83: mach_h=m68k
84: ;;
85: mips*)
86: mach_h=mips
1.7 anton 87: #link text and data segment into the same 256M region!
88: GCCLDFLAGS="-Xlinker -T -Xlinker 10000000 -Xlinker -D -Xlinker 10400000"
1.1 anton 89: ;;
1.9 pazsan 90: alpha*)
91: mach_h=alpha
92: echo Very Preliminary Support for Alpha!!!
93: ;;
1.1 anton 94: *)
95: echo "No direct threading support for $host_cpu, using indirect threading."
96: echo "Using a generic 32-bit machine description. It will only work if char * AND"
97: echo "long values have 32 bits."
98: echo "I'll assume that C floats and doubles are represented by IEEE single and"
99: echo "double numbers. If this is not so, SF@ etc. will not work correctly."
100: mach_h=32bit
101: esac
1.10 anton 102: AC_SUBST(host)
1.1 anton 103:
104: dnl Now a little support for DOS/DJGCC
105: AC_SUBST(MAKE_EXE)
106: MAKE_EXE=""
107:
108: dnl copy commands for systems that don't have links
1.6 pazsan 109: AC_SUBST(LINK_KERNL16L)
110: LINK_KERNL16L=""
111: AC_SUBST(LINK_KERNL16B)
112: LINK_KERNL16B=""
1.1 anton 113: AC_SUBST(LINK_KERNL32L)
114: LINK_KERNL32L=""
115: AC_SUBST(LINK_KERNL32B)
116: LINK_KERNL32B=""
1.6 pazsan 117: AC_SUBST(LINK_KERNL64L)
118: LINK_KERNL64L=""
119: AC_SUBST(LINK_KERNL64B)
120: LINK_KERNL64B=""
1.1 anton 121:
122: #if test $host_os=dos
123: #then
124: # echo Configuring for DOS!!!
125: # MAKE_EXE="coff2exe gforth"
1.13 anton 126: # LINK_KERNL32L='$(CP) kernl32l.fi kernal.fi'
1.1 anton 127: #fi
128:
129: dnl the following macro produces a warning with autoconf-2.1
130: AC_C_BIGENDIAN
1.4 pazsan 131: AC_SUBST(KERNAL)
1.1 anton 132: dnl ac_cv_c_bigendian is an undocumented variable of autoconf-2.1
133: if test $ac_cv_c_bigendian = yes; then
134: bytesex=b
1.6 pazsan 135: KERNAL="kernl16b.fi kernl16l.fi kernl32b.fi kernl32l.fi kernl64b.fi kernl64l.fi"
1.1 anton 136: else
137: bytesex=l
1.6 pazsan 138: KERNAL="kernl16l.fi kernl16b.fi kernl32l.fi kernl32b.fi kernl64l.fi kernl64b.fi"
1.1 anton 139: fi
140:
141: dnl Checks for programs.
142: AC_PROG_LN_S
143: AC_PROG_INSTALL
144:
145: dnl Checks for library functions
1.2 anton 146: dnl This check is just for making later checks link with libm.
147: dnl using sin here is no good idea since it is built-into gcc and typechecked
148: AC_CHECK_LIB(m,asin)
1.1 anton 149: AC_FUNC_MEMCMP
1.13 anton 150: AC_REPLACE_FUNCS(memmove strtoul pow10 strerror strsignal)
1.8 anton 151: AC_CHECK_FUNC(getopt_long,getopt_long="",getopt_long="getopt.o getopt1.o")
1.1 anton 152: AC_SUBST(getopt_long)
1.11 anton 153: AC_CHECK_FUNCS(rint expm1 log1p)
1.1 anton 154: AC_REPLACE_FUNCS(ecvt)
155: dnl No check for select, because our replacement is no good under
156: dnl anything but DOS
157:
1.13 anton 158: kernal_fi=kernl${wordsize}${bytesex}.fi
159: AC_SUBST(kernal_fi)
1.8 anton 160:
1.13 anton 161: AC_LINK_FILES(${mach_h}.h $kernal_fi,machine.h kernal.fi)
1.1 anton 162: AC_OUTPUT(Makefile)
163:
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