190 lines
4.7 KiB
Plaintext
190 lines
4.7 KiB
Plaintext
dnl Process this file with autoconf to produce a configure script.
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dnl To: The Ports Teams for the various BSD Distributions
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dnl CC: Anyone else who cares
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dnl From: A FreeBSD user who wrote this autoconf setup.
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dnl
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dnl Please do not use global cflags for zsnes, they are
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dnl not optimized (especially -O other than -Os, and
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dnl -funroll-loops) This has been tested on very many
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dnl different processors of the x86 architecture, and
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dnl this has been proven correct, and I doubt you want
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dnl to annoy your users by having ports build un-
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dnl optimized binaries.
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dnl See also: remarks supplied in the debug checking area below
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AC_INIT(init.asm)
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AC_CONFIG_HEADER(config.h)
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echo -- Where is our compiler, and who are we compiling for?
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CFLAGS="-pipe -I. -Wall"
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CXXFLAGS=$CFLAGS
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AC_PROG_CC
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AC_PROG_CXX
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AC_PATH_PROG(NASMPATH,nasm,[AC_MSG_ERROR(nasm 0.98 is required)])
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NFLAGS="$NFLAGS -w-orphan-labels"
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AC_PROG_INSTALL
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AC_CANONICAL_SYSTEM
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case "$target" in
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*-*-linux*)
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CFLAGS="$CFLAGS -D__LINUX__"
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NFLAGS="$NFLAGS -D__LINUX__ -f elf"
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;;
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*-*-*bsd*)
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CFLAGS="$CFLAGS -D__LINUX__ -D__FreeBSD__"
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NFLAGS="$NFLAGS -D__LINUX__ -D__FreeBSD__ -f elf"
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;;
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*-*-cygwin* | *-*-*ming*)
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CFLAGS="$CFLAGS -D__LINUX__"
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NFLAGS="$NFLAGS -D__LINUX__ -f win32"
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;;
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*)
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AC_MSG_ERROR(This Target is Not Supported)
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;;
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esac
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dnl Checks for X.
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echo -- Do we have X, and where is it? Needed for Mesa Checking
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AC_PATH_X
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CFLAGS="$CFLAGS -I$x_includes"
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LDFLAGS="$LDFLAGS -L$x_libraries"
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dnl Checks for libraries.
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echo -- Where is libSDL and zlib, and do we want/have libPNG and OpenGL support?
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AM_PATH_SDL(1.2.0,,[AC_MSG_ERROR(SDL >= 1.2.0 is required)])
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CFLAGS="$CFLAGS $SDL_CFLAGS"
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LDFLAGS="$LDFLAGS $SDL_LIBS"
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AC_MSG_CHECKING(for zlib)
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with_zlib=no
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AC_TRY_COMPILE([
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#include <zlib.h>
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/* Doesnt ac-try-compile ROCK? */
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],[
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],[
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with_zlib=yes
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])
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if test x$with_zlib = xyes; then
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LDFLAGS="$LDFLAGS -lz"
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AC_MSG_RESULT(yes)
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else
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AC_MSG_RESULT(no)
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AC_MSG_ERROR(zlib is required)
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fi
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AC_ARG_WITH(opengl,[ --without-opengl Build without OpenGL support ],with_opengl=yes)
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AC_MSG_CHECKING(for OpenGL support)
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if test x$with_opengl != xno; then
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with_opengl=no
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AC_TRY_COMPILE([
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#include <GL/gl.h>
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/* Doesnt ac-try-compile ROCK? */
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],[
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],[
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with_opengl=yes
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])
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AC_MSG_RESULT($with_opengl)
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if test x$with_opengl = xyes; then
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LDFLAGS="$LDFLAGS -lGL"
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CFLAGS="$CFLAGS -D__OPENGL__"
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NFLAGS="$NFLAGS -D__OPENGL__"
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GL_DRAW="\${WINDIR}/gl_draw.o"
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fi
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else
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AC_MSG_RESULT(disabled by user)
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fi
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AC_ARG_ENABLE(png, [ --without-png Build without PNG screenshot support ],with_png=no)
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AC_MSG_CHECKING(for libPNG support)
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if test x$with_png != xno; then
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with_png=no
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AC_TRY_COMPILE([
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#include <png.h>
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/* Doesnt ac-try-compile ROCK? */
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],[
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],[
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with_png=yes
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])
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AC_MSG_RESULT($with_png)
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if test x$with_png = xyes; then
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LDFLAGS="$LDFLAGS -lpng"
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fi
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else
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AC_MSG_RESULT(disabled by user)
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fi
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echo -- Various debug and optimization option checks
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AC_ARG_ENABLE(debug, [ --enable-debug Build GDB Friendly binary (zsnes-debug) ],debug=yes)
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AC_MSG_CHECKING(if you want gdb friendly executable)
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if test x$debug = xyes; then
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AC_MSG_RESULT(yes)
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dnl It is actually easier to debug zsnes with no optimization
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dnl enabled.
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CFLAGS="$CFLAGS -DDEBUG -O0 -fno-omit-frame-pointer -ggdb3"
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NFLAGS="$NFLAGS -DDEBUG -g -s"
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ZSNESEXE="zsnesd"
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else
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AC_MSG_RESULT(no)
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dnl DONT TOUCH THESE CFLAGS! THESE ARE OPTIMIZED!
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dnl Because of the way zsnes is written, these options make
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dnl zsnes more easily deal with small instruction caches, and more
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dnl effectivly use branch prediction.
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CFLAGS="$CFLAGS -Os -ffast-math -fomit-frame-pointer -fschedule-insns2 -s"
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ZSNESEXE="zsnes"
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fi
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AC_MSG_CHECKING(which processor class to optimize for)
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if test x$debug != xyes; then
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case "$target" in
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i486-*-*)
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CFLAGS="$CFLAGS -march=i486"
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AC_MSG_RESULT(486)
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;;
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i586-*-*)
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CFLAGS="$CFLAGS -march=pentium"
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AC_MSG_RESULT(Pentium)
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;;
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i686-*-*)
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CFLAGS="$CFLAGS -march=pentiumpro"
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AC_MSG_RESULT(PPro/P2)
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;;
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*)
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AC_MSG_RESULT(386)
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AC_MSG_WARN(*** This is probably not what you want use --target)
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;;
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esac
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else
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AC_MSG_RESULT(no optimization because debug enabled)
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fi
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dnl Checks for header files.
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AC_HEADER_DIRENT
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AC_HEADER_STDC
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AC_CHECK_HEADERS(fcntl.h limits.h malloc.h sys/ioctl.h unistd.h)
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dnl Checks for typedefs, structures, and compiler characteristics.
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AC_C_CONST
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AC_TYPE_SIZE_T
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AC_HEADER_TIME
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AC_CHECK_HEADERS(sys/time.h)
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dnl Checks for library functions.
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AC_SUBST(ZSNESEXE)
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AC_SUBST(GL_DRAW)
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AC_SUBST(NFLAGS)
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CXXFLAGS=$CFLAGS
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AC_OUTPUT(Makefile)
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echo
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echo You may now run make to compile $ZSNESEXE
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echo Make sure you use GNU make when compiling.
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