mirror of https://github.com/snes9xgit/snes9x.git
470 lines
10 KiB
Plaintext
470 lines
10 KiB
Plaintext
AC_PREREQ([2.60])
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AC_INIT([Snes9x], [1.54], [], [snes9x])
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AC_REVISION([$Revision: 1.54 $])
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AC_CONFIG_SRCDIR([unix.cpp])
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AC_CANONICAL_TARGET
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AC_PROG_CC
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AC_PROG_CXX
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AC_LANG([C++])
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S9XFLGS=""
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S9XDEFS=""
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S9XLIBS=""
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AC_DEFUN([AC_S9X_COMPILER_FLAG],
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[
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AC_MSG_CHECKING([whether g++ accepts $1])
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AC_CACHE_VAL([snes9x_cv_option_$2],
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[
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OLD_CXXFLAGS="[$]CXXFLAGS"
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CXXFLAGS="[$]OLD_CXXFLAGS $1"
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AC_TRY_RUN(
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[
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int foo;
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int main (int argc, char **argv)
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{
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/* The following code triggs gcc:s generation of aline opcodes,
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which some versions of as does not support. */
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if (argc > 0)
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argc = 0;
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return (argc);
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}
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],
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[snes9x_cv_option_$2="yes"], [snes9x_cv_option_$2="no"])
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])
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CXXFLAGS="[$]OLD_CXXFLAGS"
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if test "x[$]snes9x_cv_option_$2" = "xyes"; then
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S9XFLGS="[$]S9XFLGS $1"
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AC_MSG_RESULT([yes])
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else
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AC_MSG_RESULT([no])
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$3
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fi
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])
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# *****************************
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# *** Execution begins here ***
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# *****************************
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# Remove -g and -O2 flags manually.
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if test "x$CFLAGS" != "x"; then
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CFLAGS="`echo \"$CFLAGS\" | sed -e 's/-g//'`"
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CFLAGS="`echo \"$CFLAGS\" | sed -e 's/-O2//'`"
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fi
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if test "x$CXXFLAGS" != "x"; then
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CXXFLAGS="`echo \"$CXXFLAGS\" | sed -e 's/-g//'`"
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CXXFLAGS="`echo \"$CXXFLAGS\" | sed -e 's/-O2//'`"
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fi
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# Test what compiler flags we should use.
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AC_ARG_ENABLE([debug],
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[AS_HELP_STRING([--enable-debug],
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[leave debug information in the final binary (default: no)])],
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[], [enable_debug="no"])
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if test "x$enable_debug" = "xyes"; then
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AC_S9X_COMPILER_FLAG([-g], [g])
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AC_S9X_COMPILER_FLAG([-O0], [o0])
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else
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AC_S9X_COMPILER_FLAG([-O3], [o3], [
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AC_S9X_COMPILER_FLAG([-O2], [o2], [
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AC_S9X_COMPILER_FLAG([-O1], [o1])])])
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AC_S9X_COMPILER_FLAG([-fomit-frame-pointer], [omit_frame_pointer])
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fi
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AC_ARG_ENABLE([mtune],
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[AS_HELP_STRING([--enable-mtune],
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[use the specified value for the -mtune/-mcpu flag (default: no)])],
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[], [enable_mtune="no"])
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if test "x$enable_mtune" != "xno"; then
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AC_S9X_COMPILER_FLAG([-mtune="$enable_mtune"], [mtune],
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[
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AC_MSG_WARN([-mtune failed, trying -mcpu...])
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AC_S9X_COMPILER_FLAG([-mcpu="$enable_mtune"], [mcpu],
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[AC_MSG_ERROR([Please specify a working value for --enable-mtune.])])
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])
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fi
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AC_S9X_COMPILER_FLAG([-fno-exceptions], [no_exceptions])
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AC_S9X_COMPILER_FLAG([-fno-rtti], [no_rtti])
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AC_S9X_COMPILER_FLAG([-pedantic], [pedantic])
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AC_S9X_COMPILER_FLAG([-Wall], [Wall])
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AC_S9X_COMPILER_FLAG([-W], [W])
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AC_S9X_COMPILER_FLAG([-Wno-unused-parameter], [Wno_unused_parameter])
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# Check if the OS is Linux.
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AC_MSG_CHECKING([whether the OS is Linux])
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AC_CACHE_VAL([snes9x_cv_linux_os],
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[
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case "$target" in
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*-*-linux*)
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snes9x_cv_linux_os="yes"
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;;
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*)
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snes9x_cv_linux_os="no"
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;;
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esac
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])
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AC_MSG_RESULT([$snes9x_cv_linux_os])
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# Enable gamepad support on Linux.
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AC_ARG_ENABLE([gamepad],
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[AS_HELP_STRING([--enable-gamepad],
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[enable gamepad support if available (default: yes)])],
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[], [enable_gamepad="yes"])
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if test "x$enable_gamepad" = "xyes"; then
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if test "x$snes9x_cv_linux_os" = "xyes"; then
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S9XDEFS="$S9XDEFS -DJOYSTICK_SUPPORT"
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else
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AC_MSG_WARN([Your OS is not Linux. Build without gamepad support.])
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enable_gamepad="no"
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fi
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fi
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# Enable debugger.
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S9XDEBUGGER="#S9XDEBUGGER=1"
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AC_ARG_ENABLE([debugger],
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[AS_HELP_STRING([--enable-debugger],
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[enable debugger (default: no)])],
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[], [enable_debugger="no"])
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if test "x$enable_debugger" = "xyes"; then
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S9XDEBUGGER="S9XDEBUGGER=1"
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S9XDEFS="$S9XDEFS -DDEBUGGER"
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fi
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# Enable netplay support if requested.
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S9XNETPLAY="#S9XNETPLAY=1"
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AC_ARG_ENABLE([netplay],
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[AS_HELP_STRING([--enable-netplay],
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[enable netplay support (default: no)])],
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[], [enable_netplay="no"])
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if test "x$enable_netplay" = "xyes"; then
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S9XNETPLAY="S9XNETPLAY=1"
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S9XDEFS="$S9XDEFS -DNETPLAY_SUPPORT"
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fi
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# Enable GZIP support through zlib.
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AC_CACHE_VAL([snes9x_cv_zlib],
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[
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AC_CHECK_HEADER([zlib.h],
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[AC_CHECK_LIB([z], [gzread], [snes9x_cv_zlib="yes"], [snes9x_cv_zlib="no"])],
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[snes9x_cv_zlib="no"])
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])
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AC_ARG_ENABLE([gzip],
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[AS_HELP_STRING([--enable-gzip],
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[enable GZIP support through zlib (default: yes)])],
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[], [enable_gzip="yes"])
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if test "x$enable_gzip" = "xyes"; then
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if test "x$snes9x_cv_zlib" = "xyes"; then
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S9XDEFS="$S9XDEFS -DZLIB"
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S9XLIBS="$S9XLIBS -lz"
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else
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AC_MSG_WARN([zlib not found. Build without GZIP support.])
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enable_gzip="no"
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fi
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fi
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# Enable ZIP support through zlib.
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S9XZIP="#S9XZIP=1"
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AC_ARG_ENABLE([zip],
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[AS_HELP_STRING([--enable-zip],
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[enable ZIP support through zlib (default: yes)])],
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[], [enable_zip="yes"])
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if test "x$enable_zip" = "xyes"; then
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if test "x$snes9x_cv_zlib" = "xyes"; then
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S9XZIP="S9XZIP=1"
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S9XDEFS="$S9XDEFS -DUNZIP_SUPPORT"
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if test "x$enable_gzip" = "xno"; then
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S9XLIBS="$S9XLIBS -lz"
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fi
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else
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AC_MSG_WARN([zlib not found. Build without ZIP support.])
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enable_zip="no"
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fi
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fi
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# Enable JMA support.
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S9XJMA="#S9XJMA=1"
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AC_ARG_ENABLE([jma],
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[AS_HELP_STRING([--enable-jma],
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[enable JMA support (default: yes)])],
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[], [enable_jma="yes"])
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if test "x$enable_jma" = "xyes"; then
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S9XJMA="S9XJMA=1"
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S9XDEFS="$S9XDEFS -DJMA_SUPPORT"
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fi
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# Enable screenshot support through libpng.
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AC_CACHE_VAL([snes9x_cv_libpng],
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[
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AC_CHECK_HEADER([png.h],
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[AC_CHECK_LIB([png], [png_init_io], [snes9x_cv_libpng="yes"], [snes9x_cv_libpng="no"])],
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[snes9x_cv_libpng="no"])
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])
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AC_ARG_ENABLE([screenshot],
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[AS_HELP_STRING([--enable-screenshot],
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[enable screenshot support through libpng (default: yes)])],
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[], [enable_screenshot="yes"])
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if test "x$enable_screenshot" = "xyes"; then
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if test "x$snes9x_cv_libpng" = "xyes"; then
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S9XDEFS="$S9XDEFS -DHAVE_LIBPNG"
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S9XLIBS="$S9XLIBS -lpng"
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else
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AC_MSG_WARN([libpng not found. Build without screenshot support.])
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enable_screenshot="no"
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fi
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fi
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# Check for functions
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AC_CHECK_FUNC([mkstemp],
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[
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S9XDEFS="$S9XDEFS -DHAVE_MKSTEMP"
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])
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# Check X11
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AC_PATH_XTRA
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if test "x$no_x" = "xyes"; then
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AC_MSG_ERROR([X11 is required.])
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else
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S9XFLGS="$S9XFLGS $X_CFLAGS"
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S9XLIBS="$S9XLIBS $X_PRE_LIBS -lX11 -lXext $X_LIBS $X_EXTRA_LIBS"
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fi
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# Check for headers
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snes9x_have_stdint_h="";
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AC_CHECK_HEADER([strings.h],
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[
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S9XDEFS="$S9XDEFS -DHAVE_STRINGS_H"
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])
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AC_CHECK_HEADER([sys/ioctl.h],
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[
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S9XDEFS="$S9XDEFS -DHAVE_SYS_IOCTL_H"
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])
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AC_CHECK_HEADER([stdint.h],
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[
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S9XDEFS="$S9XDEFS -DHAVE_STDINT_H"
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snes9x_have_stdint_h="-DHAVE_STDINT_H"
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])
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AC_CHECK_HEADERS([unistd.h sys/socket.h])
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# Check whether the size of pointer is int.
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if test "x$snes9x_have_stdint_h" = "x"; then
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AC_MSG_CHECKING([whether the size of pointer is int])
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AC_TRY_RUN(
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[
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int main (void)
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{
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return (!(sizeof(void *) == sizeof(int)));
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}
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],
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[snes9x_ptr_is_int="yes"], [snes9x_ptr_is_int="no"])
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if test "x$snes9x_ptr_is_int" = "xyes"; then
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AC_MSG_RESULT(yes)
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else
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AC_MSG_RESULT(no)
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S9XDEFS="$S9XDEFS -DPTR_NOT_INT"
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fi
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fi
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# Check whether right shift is arithmetic or not
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AC_DEFUN([AC_S9X_CHECK_SAR],
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[
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AC_MSG_CHECKING([whether right shift $1 is arithmetic])
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OLD_CXXFLAGS="[$]CXXFLAGS"
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CXXFLAGS="[$]OLD_CXXFLAGS $snes9x_have_stdint_h"
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AC_TRY_RUN(
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[
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#ifdef HAVE_STDINT_H
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#include <stdint.h>
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typedef int8_t int8;
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typedef int16_t int16;
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typedef int32_t int32;
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typedef int64_t int64;
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#else
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typedef signed char int8;
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typedef signed short int16;
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typedef signed int int32;
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#ifdef __GNUC__
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__extension__
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#endif
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typedef long long int64;
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#endif
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int main (void)
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{
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$1 i;
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i = -1;
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i >>= 1;
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return (i < 0 ? 0 : 1);
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}
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],
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[snes9x_sar_$1="yes"], [snes9x_sar_$1="no"])
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CXXFLAGS="[$]OLD_CXXFLAGS"
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if test "x$snes9x_sar_$1" = "xno"; then
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AC_MSG_RESULT([no])
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else
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S9XDEFS="$S9XDEFS -DRIGHTSHIFT_$1_IS_SAR"
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AC_MSG_RESULT([yes])
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fi
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])
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AC_S9X_CHECK_SAR([int8])
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AC_S9X_CHECK_SAR([int16])
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AC_S9X_CHECK_SAR([int32])
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AC_S9X_CHECK_SAR([int64])
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if test "x$snes9x_sar_int8" = "xyes" -a "x$snes9x_sar_int16" = "xyes" -a "x$snes9x_sar_int32" = "xyes" -a "x$snes9x_sar_int64" = "xyes"; then
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S9XDEFS="`echo \"$S9XDEFS\" | sed -e 's/-DRIGHTSHIFT_int8_IS_SAR//'`"
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S9XDEFS="`echo \"$S9XDEFS\" | sed -e 's/-DRIGHTSHIFT_int16_IS_SAR//'`"
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S9XDEFS="`echo \"$S9XDEFS\" | sed -e 's/-DRIGHTSHIFT_int32_IS_SAR//'`"
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S9XDEFS="`echo \"$S9XDEFS\" | sed -e 's/-DRIGHTSHIFT_int64_IS_SAR//'`"
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S9XDEFS="$S9XDEFS -DRIGHTSHIFT_IS_SAR"
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fi
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# Check if we can build with Xvideo acceleration support
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AC_ARG_ENABLE([xvideo],
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[AS_HELP_STRING([--enable-xvideo],
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[enable Xvideo if available (default: yes)])],
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[], [enable_xvideo="yes"])
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if test "x$enable_xvideo" = "xyes"; then
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enable_xvideo="no"
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AC_CHECK_HEADER([X11/extensions/Xv.h],
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[
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enable_xvideo="yes"
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S9XLIBS="$S9XLIBS -lXv"
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S9XDEFS="$S9XDEFS -DUSE_XVIDEO"
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])
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fi
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# Check if we have sound code for this platform.
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AC_ARG_ENABLE([sound],
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[AS_HELP_STRING([--enable-sound],
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[enable sound if available (default: yes)])],
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[], [enable_sound="yes"])
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if test "x$enable_sound" = "xyes"; then
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AC_MSG_CHECKING([whether sound is supported on this platform])
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if test "x$snes9x_cv_linux_os" = "xyes"; then
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AC_MSG_RESULT([yes])
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else
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AC_MSG_RESULT([no])
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AC_MSG_WARN([Your OS is not Linux. Build without sound support.])
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enable_sound="no"
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fi
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fi
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if test "x$enable_sound" = "xyes"; then
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AC_CHECK_HEADER([pthread.h],
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[
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S9XDEFS="$S9XDEFS -DUSE_THREADS"
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S9XLIBS="$S9XLIBS -lpthread"
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])
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else
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S9XDEFS="$S9XDEFS -DNOSOUND"
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fi
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# Output.
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S9XFLGS="$CXXFLAGS $CPPFLAGS $LDFLAGS $S9XFLGS"
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S9XLIBS="$LIBS $S9XLIBS"
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S9XFLGS="`echo \"$S9XFLGS\" | sed -e 's/ */ /g'`"
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S9XDEFS="`echo \"$S9XDEFS\" | sed -e 's/ */ /g'`"
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S9XLIBS="`echo \"$S9XLIBS\" | sed -e 's/ */ /g'`"
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S9XFLGS="`echo \"$S9XFLGS\" | sed -e 's/^ *//'`"
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S9XDEFS="`echo \"$S9XDEFS\" | sed -e 's/^ *//'`"
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S9XLIBS="`echo \"$S9XLIBS\" | sed -e 's/^ *//'`"
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AC_SUBST(S9XFLGS)
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AC_SUBST(S9XDEFS)
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AC_SUBST(S9XLIBS)
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AC_SUBST(S9XXVIDEO)
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AC_SUBST(S9XDEBUGGER)
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AC_SUBST(S9XNETPLAY)
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AC_SUBST(S9XZIP)
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AC_SUBST(S9XJMA)
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rm config.info 2>/dev/null
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cat >config.info <<EOF
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build information:
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cc...............,,,. $CC
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c++.................. $CXX
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options.............. $S9XFLGS
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defines.............. $S9XDEFS
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libs................. $S9XLIBS
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features:
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Xvideo support....... $enable_xvideo
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sound support........ $enable_sound
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screenshot support... $enable_screenshot
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netplay support...... $enable_netplay
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gamepad support...... $enable_gamepad
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GZIP support......... $enable_gzip
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ZIP support.......... $enable_zip
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JMA support.......... $enable_jma
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debugger............. $enable_debugger
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EOF
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cat config.info
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AC_OUTPUT(Makefile)
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