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dnl Process this file with autoconf to produce a configure script.
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dnl Written in 2002 by Christian Bauer
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AC_INIT([SheepShaver], 2.2, [Christian.Bauer@uni-mainz.de], SheepShaver)
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AC_CONFIG_SRCDIR(main_windows.cpp)
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AC_CONFIG_AUX_DIR(../Unix)
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AC_PREREQ(2.52)
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AC_CONFIG_HEADER(config.h)
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dnl Canonical system information.
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AC_CANONICAL_HOST
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AC_CANONICAL_TARGET
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dnl Options.
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AC_ARG_ENABLE(jit, [ --enable-jit enable JIT compiler [default=yes]], [WANT_JIT=$enableval], [WANT_JIT=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_EGREP
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AC_PROG_LN_S
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AC_PATH_PROG(PERL, [perl])
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dnl We use 64-bit file size support if possible.
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AC_SYS_LARGEFILE
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dnl Checks for header files.
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AC_HEADER_STDC
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dnl Checks for typedefs, structures, and compiler characteristics.
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AC_C_BIGENDIAN
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AC_C_CONST
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AC_C_INLINE
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AC_CHECK_SIZEOF(short, 2)
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AC_CHECK_SIZEOF(int, 4)
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AC_CHECK_SIZEOF(long, 4)
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AC_CHECK_SIZEOF(long long, 8)
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AC_CHECK_SIZEOF(float, 4)
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AC_CHECK_SIZEOF(double, 8)
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AC_CHECK_SIZEOF(void *, 4)
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AC_TYPE_OFF_T
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AC_TYPE_SIZE_T
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dnl Checks for library functions.
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AC_CHECK_FUNCS(exp2f log2f exp2 log2 trunc)
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dnl Define a macro that translates a yesno-variable into a C macro definition
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dnl to be put into the config.h file
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dnl $1 -- the macro to define
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dnl $2 -- the value to translate
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dnl $3 -- template name
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AC_DEFUN([AC_TRANSLATE_DEFINE], [
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if [[ "x$2" = "xyes" -o "x$2" = "xguessing yes" ]]; then
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AC_DEFINE($1, 1, $3)
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fi
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])
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dnl Check that VirtualAlloc(), VirtualProtect() work
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AC_CACHE_CHECK([whether VirtualProtect works],
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ac_cv_VirtualProtect_works, [
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AC_LANG_SAVE
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AC_LANG_CPLUSPLUS
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ac_cv_VirtualProtect_works=yes
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dnl First the tests that should segfault
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for test_def in NONE_READ NONE_WRITE READ_WRITE; do
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AC_TRY_RUN([
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#define HAVE_WIN32_VM 1
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#define CONFIGURE_TEST_VM_MAP
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#define TEST_VM_PROT_$test_def
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#include "../Unix/vm_alloc.cpp"
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], ac_cv_VirtualProtect_works=no, rm -f core,
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dnl When cross-compiling, assume it works
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ac_cv_VirtualProtect_works="yes"
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)
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done
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AC_TRY_RUN([
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#define HAVE_WIN32_VM 1
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#define CONFIGURE_TEST_VM_MAP
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#define TEST_VM_PROT_RDWR_WRITE
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#include "../Unix/vm_alloc.cpp"
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], , ac_cv_VirtualProtect_works=no,
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dnl When cross-compiling, assume it works
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ac_cv_VirtualProtect_works="yes"
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)
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AC_LANG_RESTORE
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]
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)
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if [[ "x$ac_cv_VirtualProtect_works" = "xyes" ]]; then
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AC_DEFINE(HAVE_WIN32_VM, 1, [Define if your system has a working Win32-based memory allocator.])
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else
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AC_MSG_ERROR([Sorry, Windows VM functions don't work as expected on your system.])
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fi
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dnl Check if Windows exceptions are supported.
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AC_CACHE_CHECK([whether your system supports Windows exceptions],
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ac_cv_have_win32_exceptions, [
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AC_LANG_SAVE
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AC_LANG_CPLUSPLUS
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AC_TRY_RUN([
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#define HAVE_WIN32_EXCEPTIONS 1
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#define CONFIGURE_TEST_SIGSEGV_RECOVERY
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#include "../Unix/vm_alloc.cpp"
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#include "../Unix/sigsegv.cpp"
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],
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ac_cv_have_win32_exceptions=yes,
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ac_cv_have_win32_exceptions=no,
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dnl When cross-compiling, assume it works
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ac_cv_have_win32_exceptions="yes"
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)
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AC_LANG_RESTORE
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]
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)
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if [[ "x$ac_cv_have_win32_exceptions" = "xyes" ]]; then
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AC_DEFINE(HAVE_WIN32_EXCEPTIONS, 1, [Define if your system supports Windows exceptions.])
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else
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AC_MSG_ERROR([Sorry, Windows exceptions don't work as expected on your system.])
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fi
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dnl Check if we can ignore the fault (instruction skipping in SIGSEGV handler)
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AC_CACHE_CHECK([whether we can skip instruction in SIGSEGV handler],
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ac_cv_have_skip_instruction, [
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AC_LANG_SAVE
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AC_LANG_CPLUSPLUS
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AC_TRY_RUN([
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#define HAVE_SIGSEGV_SKIP_INSTRUCTION 1
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#define CONFIGURE_TEST_SIGSEGV_RECOVERY
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#include "../Unix/vm_alloc.cpp"
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#include "../Unix/sigsegv.cpp"
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], ac_cv_have_skip_instruction=yes, ac_cv_have_skip_instruction=no,
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dnl When cross-compiling, do not assume anything.
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ac_cv_have_skip_instruction=no
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)
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AC_LANG_RESTORE
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]
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)
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AC_TRANSLATE_DEFINE(HAVE_SIGSEGV_SKIP_INSTRUCTION, "$ac_cv_have_skip_instruction",
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[Define if we can ignore the fault (instruction skipping in SIGSEGV handler).])
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dnl We really want VOSF (Video on SEGV Signals) screen updates acceleration
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AC_DEFINE(ENABLE_VOSF, 1, [Define if using video enabled on SEGV signals.])
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dnl Check for GCC 2.7 or higher.
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HAVE_GCC27=no
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AC_MSG_CHECKING(for GCC 2.7 or higher)
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AC_EGREP_CPP(xyes,
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[#if __GNUC__ - 1 > 1 || __GNUC_MINOR__ - 1 > 5
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xyes
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#endif
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], [AC_MSG_RESULT(yes); HAVE_GCC27=yes], AC_MSG_RESULT(no))
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dnl Check for GCC 3.0 or higher.
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HAVE_GCC30=no
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AC_MSG_CHECKING(for GCC 3.0 or higher)
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AC_EGREP_CPP(xyes,
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[#if __GNUC__ >= 3
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xyes
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#endif
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], [AC_MSG_RESULT(yes); HAVE_GCC30=yes], AC_MSG_RESULT(no))
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dnl CPU emulator sources
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CPUSRCS="\
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../kpx_cpu/src/mathlib/ieeefp.cpp \
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../kpx_cpu/src/cpu/ppc/ppc-cpu.cpp \
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../kpx_cpu/src/cpu/ppc/ppc-decode.cpp \
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../kpx_cpu/src/cpu/ppc/ppc-execute.cpp \
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../kpx_cpu/src/cpu/ppc/ppc-translate.cpp"
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CPPFLAGS="$CPPFLAGS -I../kpx_cpu/include -I../kpx_cpu/src"
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dnl Enable JIT compiler, if possible
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USE_DYNGEN="no"
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if [[ "x$WANT_JIT" = "xyes" ]]; then
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case $host_cpu in
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i?86)
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DYNGEN_OP_FLAGS="-fomit-frame-pointer -mpreferred-stack-boundary=2"
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if [[ "x$HAVE_GCC30" = "xyes" ]]; then
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DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -falign-functions=0"
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else
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DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -malign-functions=0"
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fi
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;;
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esac
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USE_DYNGEN="yes"
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DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -finline-limit=10000 -g0"
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if [[ "x$HAVE_GCC30" = "xyes" ]]; then
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DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -fno-reorder-blocks -fno-optimize-sibling-calls"
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fi
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AC_DEFINE(ENABLE_DYNGEN, 1, [Define to enable dyngen engine])
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DYNGENSRCS="\
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../kpx_cpu/src/cpu/jit/dyngen.c \
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../kpx_cpu/src/cpu/jit/cxxdemangle.cpp"
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CPUSRCS="\
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../kpx_cpu/src/cpu/jit/jit-cache.cpp \
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../kpx_cpu/src/cpu/jit/basic-dyngen.cpp \
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../kpx_cpu/src/cpu/ppc/ppc-dyngen.cpp $CPUSRCS"
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CPPFLAGS="$CPPFLAGS -DUSE_JIT"
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fi
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CPUSRCS="$CPUSRCS ../kpx_cpu/sheepshaver_glue.cpp"
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dnl We really want SDL for now
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AC_PATH_PROG(sdl_config, "sdl-config", [AC_MSG_ERROR([Sorry, you currently need SDL for this port])])
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sdl_cflags=`$sdl_config --cflags`
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sdl_libs=`$sdl_config --libs`
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CFLAGS="$CFLAGS $sdl_cflags"
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CXXFLAGS="$CXXFLAGS $sdl_cflags"
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LIBS="$LIBS $sdl_libs"
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AC_DEFINE(USE_SDL, 1, [Define to enble SDL support])
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AC_DEFINE(USE_SDL_VIDEO, 1, [Define to enable SDL video graphics support])
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AC_DEFINE(USE_SDL_AUDIO, 1, [Define to enable SDL audio support])
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dnl Remove the "-g" option if set for GCC.
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if [[ "x$HAVE_GCC27" = "xyes" ]]; then
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CFLAGS=`echo $CFLAGS | sed -e 's/-g\b//g'`
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CXXFLAGS=`echo $CXXFLAGS | sed -e 's/-g\b//g'`
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fi
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dnl Generate Makefile.
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AC_SUBST(PERL)
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AC_SUBST(USE_DYNGEN)
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AC_SUBST(DYNGENSRCS)
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AC_SUBST(DYNGEN_OP_FLAGS)
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AC_SUBST(CPUSRCS)
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AC_OUTPUT([Makefile])
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dnl Print summary.
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echo
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echo SheepShaver configuration summary:
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echo
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echo Enable JIT compiler .............. : $WANT_JIT
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echo
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echo "Configuration done. Now type \"make\"."
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