1 |
cebix |
1.1 |
dnl Process this file with autoconf to produce a configure script. |
2 |
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dnl Written in 2002 by Christian Bauer |
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4 |
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AC_INIT(main_unix.cpp) |
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AC_PREREQ(2.12) |
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AC_CONFIG_HEADER(config.h) |
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dnl Options. |
9 |
gbeauche |
1.6 |
AC_ARG_ENABLE(ppc-emulator, [ --enable-ppc-emulator use the selected PowerPC emulator [default=auto]], [WANT_EMULATED_PPC=$enableval], [WANT_EMULATED_PPC=auto]) |
10 |
cebix |
1.1 |
AC_ARG_ENABLE(xf86-dga, [ --enable-xf86-dga use the XFree86 DGA extension [default=yes]], [WANT_XF86_DGA=$enableval], [WANT_XF86_DGA=yes]) |
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AC_ARG_ENABLE(xf86-vidmode, [ --enable-xf86-vidmode use the XFree86 VidMode extension [default=yes]], [WANT_XF86_VIDMODE=$enableval], [WANT_XF86_VIDMODE=yes]) |
12 |
gbeauche |
1.5 |
AC_ARG_ENABLE(vosf, [ --enable-vosf enable video on SEGV signals [default=yes]], [WANT_VOSF=$enableval], [WANT_VOSF=yes]) |
13 |
cebix |
1.1 |
AC_ARG_WITH(esd, [ --with-esd support ESD for sound under Linux/FreeBSD [default=yes]], [WANT_ESD=$withval], [WANT_ESD=yes]) |
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AC_ARG_WITH(gtk, [ --with-gtk use GTK user interface [default=yes]], [WANT_GTK=$withval], [WANT_GTK=yes]) |
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AC_ARG_WITH(mon, [ --with-mon use mon as debugger [default=yes]], [WANT_MON=$withval], [WANT_MON=yes]) |
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dnl Checks for programs. |
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AC_PROG_CC |
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AC_PROG_CPP |
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AC_PROG_CXX |
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AC_PROG_MAKE_SET |
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AC_PROG_INSTALL |
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dnl Check for PowerPC target CPU. |
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HAVE_PPC=no |
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AC_MSG_CHECKING(for PowerPC target CPU) |
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AC_EGREP_CPP(yes, |
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[ |
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#ifdef __powerpc__ |
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yes |
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#endif |
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], [AC_MSG_RESULT(yes); HAVE_PPC=yes], AC_MSG_RESULT(no)) |
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gbeauche |
1.6 |
dnl We use native CPU if possible. |
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EMULATED_PPC=yes |
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case $WANT_EMULATED_PPC in |
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auto) [[ "x$HAVE_PPC" = "xyes" ]] && EMULATED_PPC=no;; |
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no) EMULATED_PPC=no;; |
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esac |
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if [[ "x$EMULATED_PPC" = "xyes" ]]; then |
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AC_DEFINE(EMULATED_PPC) |
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fi |
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cebix |
1.1 |
dnl We use mon if possible. |
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MONSRCS= |
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if [[ "x$WANT_MON" = "xyes" ]]; then |
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AC_MSG_CHECKING(for mon) |
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mon_srcdir=../../../mon/src |
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if grep mon_init $mon_srcdir/mon.h >/dev/null 2>/dev/null; then |
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AC_MSG_RESULT(yes) |
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AC_DEFINE(ENABLE_MON) |
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MONSRCS="$mon_srcdir/mon.cpp $mon_srcdir/mon_6502.cpp $mon_srcdir/mon_z80.cpp $mon_srcdir/mon_cmd.cpp $mon_srcdir/mon_lowmem.cpp $mon_srcdir/mon_disass.cpp $mon_srcdir/mon_ppc.cpp $mon_srcdir/disass/floatformat.c $mon_srcdir/disass/i386-dis.c $mon_srcdir/disass/m68k-dis.c $mon_srcdir/disass/m68k-opc.c" |
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CXXFLAGS="$CXXFLAGS -I$mon_srcdir -I$mon_srcdir/disass" |
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gbeauche |
1.2 |
AC_CHECK_LIB(ncurses, tgetent, , |
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AC_CHECK_LIB(termcap, tgetent, , |
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AC_CHECK_LIB(termlib, tgetent, , |
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AC_CHECK_LIB(terminfo, tgetent, , |
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AC_CHECK_LIB(Hcurses, tgetent, , |
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AC_CHECK_LIB(curses, tgetent)))))) |
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cebix |
1.1 |
AC_CHECK_LIB(readline, readline) |
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AC_CHECK_HEADERS(readline.h history.h readline/readline.h readline/history.h) |
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else |
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AC_MSG_RESULT(no) |
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AC_MSG_WARN([Could not find mon, ignoring --with-mon.]) |
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WANT_MON=no |
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fi |
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fi |
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dnl Checks for libraries. |
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AC_CHECK_LIB(posix4, sem_init) |
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dnl We need X11. |
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AC_PATH_XTRA |
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if [[ "x$no_x" = "xyes" ]]; then |
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AC_MSG_ERROR([You need X11 to run SheepShaver.]) |
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fi |
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CFLAGS="$CFLAGS $X_CFLAGS" |
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CXXFLAGS="$CXXFLAGS $X_CFLAGS" |
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LIBS="$LIBS $X_PRE_LIBS $X_LIBS -lX11 -lXext $X_EXTRA_LIBS" |
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dnl We need pthreads on non-PowerPC systems. Try libpthread first, then libc_r (FreeBSD), then PTL. |
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HAVE_PTHREADS=yes |
83 |
gbeauche |
1.6 |
if [[ "x$EMULATED_PPC" = "xyes" ]]; then |
84 |
cebix |
1.1 |
AC_CHECK_LIB(pthread, pthread_create, , [ |
85 |
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AC_CHECK_LIB(c_r, pthread_create, , [ |
86 |
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AC_CHECK_LIB(PTL, pthread_create, , [ |
87 |
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AC_MSG_ERROR([You need pthreads to run Basilisk II.]) |
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]) |
89 |
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]) |
90 |
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]) |
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AC_CHECK_FUNCS(pthread_cancel) |
92 |
gbeauche |
1.8 |
if [[ "x$HAVE_PTHREADS" = "xyes" ]]; then |
93 |
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AC_DEFINE(HAVE_PTHREADS, 1, [Define if pthreads are available.]) |
94 |
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fi |
95 |
cebix |
1.1 |
fi |
96 |
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97 |
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dnl If POSIX.4 semaphores are not available, we emulate them with pthread mutexes. |
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SEMSRC= |
99 |
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AC_CHECK_FUNCS(sem_init, , [ |
100 |
gbeauche |
1.4 |
if test "x$HAVE_PTHREADS" = "xyes"; then |
101 |
cebix |
1.1 |
SEMSRC=posix_sem.cpp |
102 |
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fi |
103 |
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]) |
104 |
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105 |
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dnl We use XFree86 DGA if possible. |
106 |
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if [[ "x$WANT_XF86_DGA" = "xyes" ]]; then |
107 |
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AC_CHECK_LIB(Xxf86dga, XF86DGAQueryExtension, [ |
108 |
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AC_DEFINE(ENABLE_XF86_DGA) |
109 |
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LIBS="$LIBS -lXxf86dga" |
110 |
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], [ |
111 |
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AC_MSG_WARN([Could not find XFree86 DGA extension, ignoring --enable-xf86-dga.]) |
112 |
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WANT_XF86_DGA=no |
113 |
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]) |
114 |
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fi |
115 |
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116 |
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dnl We use XFree86 VidMode if possible. |
117 |
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if [[ "x$WANT_XF86_VIDMODE" = "xyes" ]]; then |
118 |
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AC_CHECK_LIB(Xxf86vm, XF86VidModeQueryExtension, [ |
119 |
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AC_DEFINE(ENABLE_XF86_VIDMODE) |
120 |
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LIBS="$LIBS -lXxf86vm" |
121 |
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], [ |
122 |
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AC_MSG_WARN([Could not find XFree86 VidMode extension, ignoring --enable-xf86-vidmode.]) |
123 |
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WANT_XF86_VIDMODE=no |
124 |
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]) |
125 |
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fi |
126 |
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127 |
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dnl We use GTK+ if possible. |
128 |
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UISRCS= |
129 |
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if [[ "x$WANT_GTK" = "xyes" ]]; then |
130 |
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AM_PATH_GTK(1.2.0, [ |
131 |
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AC_DEFINE(ENABLE_GTK) |
132 |
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CFLAGS="$CFLAGS $GTK_CFLAGS" |
133 |
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CXXFLAGS="$CXXFLAGS $GTK_CFLAGS" |
134 |
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LIBS="$LIBS $GTK_LIBS" |
135 |
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UISRCS=prefs_editor_gtk.cpp |
136 |
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], [ |
137 |
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AC_MSG_WARN([Could not find GTK+, disabling user interface.]) |
138 |
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WANT_GTK=no |
139 |
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]) |
140 |
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fi |
141 |
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142 |
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dnl We use ESD if possible. |
143 |
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if [[ "x$WANT_ESD" = "xyes" ]]; then |
144 |
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AM_PATH_ESD(0.2.8, [ |
145 |
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AC_DEFINE(ENABLE_ESD) |
146 |
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CFLAGS="$CFLAGS $ESD_CFLAGS" |
147 |
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CXXFLAGS="$CXXFLAGS $ESD_CFLAGS" |
148 |
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LIBS="$LIBS $ESD_LIBS" |
149 |
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], [ |
150 |
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AC_MSG_WARN([Could not find ESD, disabling ESD support.]) |
151 |
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WANT_ESD=no |
152 |
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]) |
153 |
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fi |
154 |
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155 |
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dnl Checks for header files. |
156 |
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AC_HEADER_STDC |
157 |
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AC_HEADER_SYS_WAIT |
158 |
gbeauche |
1.6 |
AC_CHECK_HEADERS(mach/vm_map.h mach/mach_init.h sys/mman.h) |
159 |
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AC_CHECK_HEADERS(sys/time.h sys/times.h) |
160 |
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AC_CHECK_HEADERS(unistd.h fcntl.h byteswap.h) |
161 |
cebix |
1.1 |
|
162 |
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dnl Checks for typedefs, structures, and compiler characteristics. |
163 |
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AC_C_BIGENDIAN |
164 |
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AC_C_CONST |
165 |
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AC_C_INLINE |
166 |
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AC_CHECK_SIZEOF(short, 2) |
167 |
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AC_CHECK_SIZEOF(int, 4) |
168 |
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AC_CHECK_SIZEOF(long, 4) |
169 |
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AC_CHECK_SIZEOF(long long, 8) |
170 |
gbeauche |
1.4 |
AC_CHECK_SIZEOF(float, 4) |
171 |
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AC_CHECK_SIZEOF(double, 8) |
172 |
gbeauche |
1.3 |
AC_CHECK_SIZEOF(void *, 4) |
173 |
cebix |
1.1 |
AC_TYPE_OFF_T |
174 |
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AC_CHECK_TYPE(loff_t, off_t) |
175 |
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AC_TYPE_SIZE_T |
176 |
gbeauche |
1.4 |
AC_TYPE_SIGNAL |
177 |
cebix |
1.1 |
AC_HEADER_TIME |
178 |
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AC_STRUCT_TM |
179 |
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180 |
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dnl Checks for library functions. |
181 |
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AC_CHECK_FUNCS(strdup cfmakeraw) |
182 |
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AC_CHECK_FUNCS(nanosleep clock_gettime timer_create) |
183 |
gbeauche |
1.4 |
AC_CHECK_FUNCS(sigaction signal) |
184 |
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AC_CHECK_FUNCS(mmap mprotect munmap) |
185 |
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AC_CHECK_FUNCS(vm_allocate vm_deallocate vm_protect) |
186 |
cebix |
1.1 |
|
187 |
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dnl Select system-dependant sources. |
188 |
gbeauche |
1.6 |
if [[ "x$EMULATED_PPC" = "xno" ]]; then |
189 |
cebix |
1.1 |
SYSSRCS="Linux/paranoia.cpp Linux/sheepthreads.c Linux/asm_linux.S" |
190 |
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else |
191 |
gbeauche |
1.6 |
SYSSRCS="../kpx_cpu/sheepshaver_glue.cpp \ |
192 |
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../kpx_cpu/src/cpu/ppc/ppc-cpu.cpp \ |
193 |
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../kpx_cpu/src/cpu/ppc/ppc-decode.cpp \ |
194 |
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../kpx_cpu/src/cpu/ppc/ppc-execute.cpp" |
195 |
gbeauche |
1.7 |
CPPFLAGS="$CPPFLAGS -I../kpx_cpu/include -I../kpx_cpu/src" |
196 |
cebix |
1.1 |
fi |
197 |
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SYSSRCS="$SYSSRCS $SEMSRCS $UISRCS $MONSRCS" |
198 |
gbeauche |
1.4 |
|
199 |
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dnl Define a macro that translates a yesno-variable into a C macro definition |
200 |
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dnl to be put into the config.h file |
201 |
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dnl $1 -- the macro to define |
202 |
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dnl $2 -- the value to translate |
203 |
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dnl $3 -- template name |
204 |
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AC_DEFUN(AC_TRANSLATE_DEFINE, [ |
205 |
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if [[ "x$2" = "xyes" -o "x$2" = "xguessing yes" ]]; then |
206 |
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AC_DEFINE($1, 1, $3) |
207 |
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fi |
208 |
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]) |
209 |
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210 |
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dnl Various checks if the system supports vm_allocate() and the like functions. |
211 |
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have_mach_vm=no |
212 |
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if [[ "x$ac_cv_func_vm_allocate" = "xyes" -a "x$ac_cv_func_vm_deallocate" = "xyes" -a \ |
213 |
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"x$ac_cv_func_vm_protect" = "xyes" ]]; then |
214 |
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have_mach_vm=yes |
215 |
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fi |
216 |
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AC_TRANSLATE_DEFINE(HAVE_MACH_VM, "$have_mach_vm", |
217 |
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[Define if your system has a working vm_allocate()-based memory allocator.]) |
218 |
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219 |
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dnl Check that vm_allocate(), vm_protect() work |
220 |
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if [[ "x$have_mach_vm" = "xyes" ]]; then |
221 |
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222 |
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AC_CACHE_CHECK([whether vm_protect works], |
223 |
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ac_cv_vm_protect_works, [ |
224 |
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AC_LANG_SAVE |
225 |
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AC_LANG_CPLUSPLUS |
226 |
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ac_cv_vm_protect_works=yes |
227 |
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dnl First the tests that should segfault |
228 |
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for test_def in NONE_READ NONE_WRITE READ_WRITE; do |
229 |
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AC_TRY_RUN([ |
230 |
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#define CONFIGURE_TEST_VM_MAP |
231 |
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#define TEST_VM_PROT_$test_def |
232 |
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#include "vm_alloc.cpp" |
233 |
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], ac_cv_vm_protect_works=no, rm -f core, |
234 |
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dnl When cross-compiling, do not assume anything |
235 |
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ac_cv_vm_protect_works="guessing no" |
236 |
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) |
237 |
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done |
238 |
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AC_TRY_RUN([ |
239 |
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#define CONFIGURE_TEST_VM_MAP |
240 |
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#define TEST_VM_PROT_RDWR_WRITE |
241 |
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#include "vm_alloc.cpp" |
242 |
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], , ac_cv_vm_protect_works=no, |
243 |
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dnl When cross-compiling, do not assume anything |
244 |
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ac_cv_vm_protect_works="guessing no" |
245 |
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) |
246 |
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AC_LANG_RESTORE |
247 |
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] |
248 |
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) |
249 |
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250 |
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dnl Remove support for vm_allocate() if vm_protect() does not work |
251 |
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if [[ "x$have_mach_vm" = "xyes" ]]; then |
252 |
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case $ac_cv_vm_protect_works in |
253 |
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*yes) have_mach_vm=yes;; |
254 |
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*no) have_mach_vm=no;; |
255 |
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esac |
256 |
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fi |
257 |
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AC_TRANSLATE_DEFINE(HAVE_MACH_VM, "$have_mach_vm", |
258 |
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[Define if your system has a working vm_allocate()-based memory allocator.]) |
259 |
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|
260 |
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fi dnl HAVE_MACH_VM |
261 |
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|
262 |
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dnl Various checks if the system supports mmap() and the like functions. |
263 |
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dnl ... and Mach memory allocators are not supported |
264 |
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have_mmap_vm=no |
265 |
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if [[ "x$ac_cv_func_mmap" = "xyes" -a "x$ac_cv_func_munmap" = "xyes" -a \ |
266 |
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"x$ac_cv_func_mprotect" = "xyes" ]]; then |
267 |
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if [[ "x$have_mach_vm" = "xno" ]]; then |
268 |
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have_mmap_vm=yes |
269 |
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fi |
270 |
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fi |
271 |
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AC_TRANSLATE_DEFINE(HAVE_MMAP_VM, "$have_mmap_vm", |
272 |
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[Define if your system has a working mmap()-based memory allocator.]) |
273 |
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|
274 |
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dnl Check that mmap() and associated functions work. |
275 |
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if [[ "x$have_mmap_vm" = "xyes" ]]; then |
276 |
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|
277 |
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dnl Check if we have a working anonymous mmap() |
278 |
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AC_CACHE_CHECK([whether mmap supports MAP_ANON], |
279 |
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ac_cv_mmap_anon, [ |
280 |
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AC_LANG_SAVE |
281 |
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AC_LANG_CPLUSPLUS |
282 |
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AC_TRY_RUN([ |
283 |
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#define HAVE_MMAP_ANON |
284 |
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#define CONFIGURE_TEST_VM_MAP |
285 |
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#define TEST_VM_MMAP_ANON |
286 |
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#include "vm_alloc.cpp" |
287 |
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], ac_cv_mmap_anon=yes, ac_cv_mmap_anon=no, |
288 |
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dnl When cross-compiling, do not assume anything. |
289 |
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ac_cv_mmap_anon="guessing no" |
290 |
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) |
291 |
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AC_LANG_RESTORE |
292 |
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] |
293 |
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) |
294 |
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AC_TRANSLATE_DEFINE(HAVE_MMAP_ANON, "$ac_cv_mmap_anon", |
295 |
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[Define if <sys/mman.h> defines MAP_ANON and mmap()'ing with MAP_ANON works.]) |
296 |
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|
297 |
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AC_CACHE_CHECK([whether mmap supports MAP_ANONYMOUS], |
298 |
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ac_cv_mmap_anonymous, [ |
299 |
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AC_LANG_SAVE |
300 |
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AC_LANG_CPLUSPLUS |
301 |
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AC_TRY_RUN([ |
302 |
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#define HAVE_MMAP_ANONYMOUS |
303 |
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#define CONFIGURE_TEST_VM_MAP |
304 |
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#define TEST_VM_MMAP_ANON |
305 |
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#include "vm_alloc.cpp" |
306 |
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], ac_cv_mmap_anonymous=yes, ac_cv_mmap_anonymous=no, |
307 |
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dnl When cross-compiling, do not assume anything. |
308 |
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ac_cv_mmap_anonymous="guessing no" |
309 |
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) |
310 |
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AC_LANG_RESTORE |
311 |
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] |
312 |
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) |
313 |
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AC_TRANSLATE_DEFINE(HAVE_MMAP_ANONYMOUS, "$ac_cv_mmap_anonymous", |
314 |
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[Define if <sys/mman.h> defines MAP_ANONYMOUS and mmap()'ing with MAP_ANONYMOUS works.]) |
315 |
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|
316 |
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AC_CACHE_CHECK([whether mprotect works], |
317 |
|
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ac_cv_mprotect_works, [ |
318 |
|
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AC_LANG_SAVE |
319 |
|
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AC_LANG_CPLUSPLUS |
320 |
|
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ac_cv_mprotect_works=yes |
321 |
|
|
dnl First the tests that should segfault |
322 |
|
|
for test_def in NONE_READ NONE_WRITE READ_WRITE; do |
323 |
|
|
AC_TRY_RUN([ |
324 |
|
|
#define CONFIGURE_TEST_VM_MAP |
325 |
|
|
#define TEST_VM_PROT_$test_def |
326 |
|
|
#include "vm_alloc.cpp" |
327 |
|
|
], ac_cv_mprotect_works=no, rm -f core, |
328 |
|
|
dnl When cross-compiling, do not assume anything |
329 |
|
|
ac_cv_mprotect_works="guessing no" |
330 |
|
|
) |
331 |
|
|
done |
332 |
|
|
AC_TRY_RUN([ |
333 |
|
|
#define CONFIGURE_TEST_VM_MAP |
334 |
|
|
#define TEST_VM_PROT_RDWR_WRITE |
335 |
|
|
#include "vm_alloc.cpp" |
336 |
|
|
], , ac_cv_mprotect_works=no, |
337 |
|
|
dnl When cross-compiling, do not assume anything |
338 |
|
|
ac_cv_mprotect_works="guessing no" |
339 |
|
|
) |
340 |
|
|
AC_LANG_RESTORE |
341 |
|
|
] |
342 |
|
|
) |
343 |
|
|
|
344 |
|
|
dnl Remove support for mmap() if mprotect() does not work |
345 |
|
|
if [[ "x$have_mmap_vm" = "xyes" ]]; then |
346 |
|
|
case $ac_cv_mprotect_works in |
347 |
|
|
*yes) have_mmap_vm=yes;; |
348 |
|
|
*no) have_mmap_vm=no;; |
349 |
|
|
esac |
350 |
|
|
fi |
351 |
|
|
AC_TRANSLATE_DEFINE(HAVE_MMAP_VM, $have_mmap_vm, |
352 |
|
|
[Define if your system has a working mmap()-based memory allocator.]) |
353 |
|
|
|
354 |
|
|
fi dnl HAVE_MMAP_VM |
355 |
|
|
|
356 |
|
|
dnl Check if we can mmap 0x2000 bytes from 0x0000 |
357 |
|
|
AC_CACHE_CHECK([whether we can map Low Memory area 0x0000-0x2000], |
358 |
|
|
ac_cv_can_map_lm, [ |
359 |
|
|
AC_LANG_SAVE |
360 |
|
|
AC_LANG_CPLUSPLUS |
361 |
|
|
AC_TRY_RUN([ |
362 |
|
|
#include "vm_alloc.cpp" |
363 |
|
|
int main(void) { /* returns 0 if we could map the lowmem globals */ |
364 |
|
|
volatile char * lm = 0; |
365 |
|
|
if (vm_init() < 0) exit(1); |
366 |
|
|
if (vm_acquire_fixed(0, 0x2000) < 0) exit(1); |
367 |
|
|
lm[0] = 'z'; |
368 |
|
|
if (vm_release((char *)lm, 0x2000) < 0) exit(1); |
369 |
|
|
vm_exit(); exit(0); |
370 |
|
|
} |
371 |
|
|
], ac_cv_can_map_lm=yes, ac_cv_can_map_lm=no, |
372 |
|
|
dnl When cross-compiling, do not assume anything. |
373 |
|
|
ac_cv_can_map_lm="guessing no" |
374 |
|
|
) |
375 |
|
|
AC_LANG_RESTORE |
376 |
|
|
] |
377 |
|
|
) |
378 |
|
|
|
379 |
|
|
dnl Check signal handlers need to be reinstalled |
380 |
|
|
AC_CACHE_CHECK([whether signal handlers need to be reinstalled], |
381 |
|
|
ac_cv_signal_need_reinstall, [ |
382 |
|
|
AC_LANG_SAVE |
383 |
|
|
AC_LANG_CPLUSPLUS |
384 |
|
|
AC_TRY_RUN([ |
385 |
|
|
#include <stdlib.h> |
386 |
|
|
#ifdef HAVE_UNISTD_H |
387 |
|
|
#include <unistd.h> |
388 |
|
|
#endif |
389 |
|
|
#include <signal.h> |
390 |
|
|
static int handled_signal = 0; |
391 |
|
|
RETSIGTYPE sigusr1_handler(int) { handled_signal++; } |
392 |
|
|
int main(void) { /* returns 0 if signals need not to be reinstalled */ |
393 |
|
|
signal(SIGUSR1, sigusr1_handler); raise(SIGUSR1); raise(SIGUSR1); |
394 |
|
|
exit(handled_signal == 2); |
395 |
|
|
} |
396 |
|
|
], ac_cv_signal_need_reinstall=yes, ac_cv_signal_need_reinstall=no, |
397 |
|
|
dnl When cross-compiling, do not assume anything. |
398 |
|
|
ac_cv_signal_need_reinstall="guessing yes" |
399 |
|
|
) |
400 |
|
|
AC_LANG_RESTORE |
401 |
|
|
] |
402 |
|
|
) |
403 |
|
|
AC_TRANSLATE_DEFINE(SIGNAL_NEED_REINSTALL, "$ac_cv_signal_need_reinstall", |
404 |
|
|
[Define if your system requires signals to be reinstalled.]) |
405 |
|
|
|
406 |
|
|
dnl Check if sigaction handlers need to be reinstalled |
407 |
|
|
AC_CACHE_CHECK([whether sigaction handlers need to be reinstalled], |
408 |
|
|
ac_cv_sigaction_need_reinstall, [ |
409 |
|
|
AC_LANG_SAVE |
410 |
|
|
AC_LANG_CPLUSPLUS |
411 |
|
|
AC_TRY_RUN([ |
412 |
|
|
#include <stdlib.h> |
413 |
|
|
#ifdef HAVE_UNISTD_H |
414 |
|
|
#include <unistd.h> |
415 |
|
|
#endif |
416 |
|
|
#include <signal.h> |
417 |
|
|
static int handled_signal = 0; |
418 |
|
|
RETSIGTYPE sigusr1_handler(int) { handled_signal++; } |
419 |
|
|
typedef RETSIGTYPE (*signal_handler)(int); |
420 |
|
|
static signal_handler mysignal(int sig, signal_handler handler) { |
421 |
|
|
struct sigaction old_sa; |
422 |
|
|
struct sigaction new_sa; |
423 |
|
|
new_sa.sa_handler = handler; |
424 |
|
|
return ((sigaction(sig,&new_sa,&old_sa) < 0) ? SIG_IGN : old_sa.sa_handler); |
425 |
|
|
} |
426 |
|
|
int main(void) { /* returns 0 if signals need not to be reinstalled */ |
427 |
|
|
mysignal(SIGUSR1, sigusr1_handler); raise(SIGUSR1); raise(SIGUSR1); |
428 |
|
|
exit(handled_signal == 2); |
429 |
|
|
} |
430 |
|
|
], ac_cv_sigaction_need_reinstall=yes, ac_cv_sigaction_need_reinstall=no, |
431 |
|
|
dnl When cross-compiling, do not assume anything. |
432 |
|
|
ac_cv_sigaction_need_reinstall="guessing yes" |
433 |
|
|
) |
434 |
|
|
AC_LANG_RESTORE |
435 |
|
|
] |
436 |
|
|
) |
437 |
|
|
AC_TRANSLATE_DEFINE(SIGACTION_NEED_REINSTALL, "$ac_cv_sigaction_need_reinstall", |
438 |
|
|
[Define if your system requires sigactions to be reinstalled.]) |
439 |
|
|
|
440 |
|
|
dnl Check if extended signals are supported. |
441 |
|
|
AC_CACHE_CHECK([whether your system supports extended signal handlers], |
442 |
|
|
ac_cv_have_extended_signals, [ |
443 |
|
|
AC_LANG_SAVE |
444 |
|
|
AC_LANG_CPLUSPLUS |
445 |
|
|
AC_TRY_RUN([ |
446 |
|
|
#define HAVE_SIGINFO_T 1 |
447 |
|
|
#define CONFIGURE_TEST_SIGSEGV_RECOVERY |
448 |
|
|
#include "vm_alloc.cpp" |
449 |
|
|
#include "sigsegv.cpp" |
450 |
|
|
], ac_cv_have_extended_signals=yes, ac_cv_have_extended_signals=no, |
451 |
|
|
dnl When cross-compiling, do not assume anything. |
452 |
|
|
ac_cv_have_extended_signals=no |
453 |
|
|
) |
454 |
|
|
AC_LANG_RESTORE |
455 |
|
|
] |
456 |
|
|
) |
457 |
|
|
AC_TRANSLATE_DEFINE(HAVE_SIGINFO_T, "$ac_cv_have_extended_signals", |
458 |
|
|
[Define if your system support extended signals.]) |
459 |
|
|
|
460 |
|
|
dnl Otherwise, check for subterfuges. |
461 |
|
|
if [[ "x$ac_cv_have_extended_signals" = "xno" ]]; then |
462 |
|
|
AC_CACHE_CHECK([whether we then have a subterfuge for your system], |
463 |
|
|
ac_cv_have_sigcontext_hack, [ |
464 |
|
|
AC_LANG_SAVE |
465 |
|
|
AC_LANG_CPLUSPLUS |
466 |
|
|
AC_TRY_RUN([ |
467 |
|
|
#define HAVE_SIGCONTEXT_SUBTERFUGE 1 |
468 |
|
|
#define CONFIGURE_TEST_SIGSEGV_RECOVERY |
469 |
|
|
#include "vm_alloc.cpp" |
470 |
|
|
#include "sigsegv.cpp" |
471 |
|
|
], ac_cv_have_sigcontext_hack=yes, ac_cv_have_sigcontext_hack=no, |
472 |
|
|
dnl When cross-compiling, do not assume anything. |
473 |
|
|
ac_cv_have_sigcontext_hack=no |
474 |
|
|
) |
475 |
|
|
AC_LANG_RESTORE |
476 |
|
|
]) |
477 |
|
|
AC_TRANSLATE_DEFINE(HAVE_SIGCONTEXT_SUBTERFUGE, "$ac_cv_have_sigcontext_hack", |
478 |
|
|
[Define if we know a hack to replace siginfo_t->si_addr member.]) |
479 |
|
|
fi |
480 |
|
|
|
481 |
|
|
dnl Check if we can ignore the fault (instruction skipping in SIGSEGV handler) |
482 |
|
|
AC_CACHE_CHECK([whether we can skip instruction in SIGSEGV handler], |
483 |
|
|
ac_cv_have_skip_instruction, [ |
484 |
|
|
AC_LANG_SAVE |
485 |
|
|
AC_LANG_CPLUSPLUS |
486 |
|
|
AC_TRY_RUN([ |
487 |
|
|
#define HAVE_SIGSEGV_SKIP_INSTRUCTION 1 |
488 |
|
|
#define CONFIGURE_TEST_SIGSEGV_RECOVERY |
489 |
|
|
#include "vm_alloc.cpp" |
490 |
|
|
#include "sigsegv.cpp" |
491 |
|
|
], ac_cv_have_skip_instruction=yes, ac_cv_have_skip_instruction=no, |
492 |
|
|
dnl When cross-compiling, do not assume anything. |
493 |
|
|
ac_cv_have_skip_instruction=no |
494 |
|
|
) |
495 |
|
|
AC_LANG_RESTORE |
496 |
|
|
] |
497 |
|
|
) |
498 |
|
|
AC_TRANSLATE_DEFINE(HAVE_SIGSEGV_SKIP_INSTRUCTION, "$ac_cv_have_skip_instruction", |
499 |
|
|
[Define if we can ignore the fault (instruction skipping in SIGSEGV handler).]) |
500 |
cebix |
1.1 |
|
501 |
gbeauche |
1.5 |
dnl Can we do Video on SEGV Signals ? |
502 |
|
|
CAN_VOSF=no |
503 |
|
|
if [[ "$ac_cv_have_extended_signals" = "yes" -o "$ac_cv_have_sigcontext_hack" = "yes" ]]; then |
504 |
|
|
CAN_VOSF=yes |
505 |
|
|
fi |
506 |
|
|
|
507 |
|
|
dnl Enable VOSF screen updates with this feature is requested and feasible |
508 |
|
|
if [[ "x$WANT_VOSF" = "xyes" -a "x$CAN_VOSF" = "xyes" ]]; then |
509 |
|
|
AC_DEFINE(ENABLE_VOSF, 1, [Define if using video enabled on SEGV signals.]) |
510 |
|
|
else |
511 |
|
|
WANT_VOSF=no |
512 |
|
|
fi |
513 |
|
|
|
514 |
cebix |
1.1 |
dnl Generate Makefile. |
515 |
|
|
AC_SUBST(SYSSRCS) |
516 |
|
|
AC_OUTPUT(Makefile) |
517 |
|
|
|
518 |
|
|
dnl Print summary. |
519 |
|
|
echo |
520 |
|
|
echo SheepShaver configuration summary: |
521 |
|
|
echo |
522 |
|
|
echo XFree86 DGA support .............. : $WANT_XF86_DGA |
523 |
|
|
echo XFree86 VidMode support .......... : $WANT_XF86_VIDMODE |
524 |
gbeauche |
1.6 |
echo Using PowerPC emulator ........... : $EMULATED_PPC |
525 |
gbeauche |
1.5 |
echo Enable video on SEGV signals ..... : $WANT_VOSF |
526 |
cebix |
1.1 |
echo ESD sound support ................ : $WANT_ESD |
527 |
|
|
echo GTK user interface ............... : $WANT_GTK |
528 |
|
|
echo mon debugger support ............. : $WANT_MON |
529 |
|
|
echo |
530 |
|
|
echo "Configuration done. Now type \"make\"." |