configure.in

   1 dnl Process this file with autoconf to produce a configure script.
   2 dnl configure.in for HHexen v1.3
   3 AC_REVISION([configure.in 1.00])
   4 AC_INIT(base/a_action.c)
   5 AC_CONFIG_HEADER(include/config.h)
   6
   7 dnl **** Command-line arguments ****
   8
   9 dnl Default values
  10 GLHEXEN="false"
  11 GLLIBS=""
  12 BASELIBS=""
  13 SVGALIBS=""
  14 LIBS="-L/usr/X11R6/lib"
  15 HAVEGL="no"
  16 GLBASE="opengl/i_gl.cpp"
  17 BUILDNAMES=""
  18
  19 AC_ARG_ENABLE(gl,
  20 [  --enable-gl                  Enable OpenGL mode],
  21 [GLHEXEN="true";SDL_VERSION="1.1.2"; AC_DEFINE(RENDER3D)],
  22 [SDL_VERSION="1.1.0"])
  23
  24 AC_ARG_ENABLE(demowad,
  25 [  --enable-demowad             Enable compilation with the demo wadfile],
  26 [ AC_DEFINE(DEMO_WAD)])
  27
  28 AC_ARG_ENABLE(assassin,
  29 [  --disable-assassin           Compile HHexen without support for the assassin],
  30 , [AC_DEFINE(ASSASSIN)])
  31
  32 AC_SUBST(GLHEXEN)
  33 AC_SUBST(SVGALIBS)
  34
  35 AC_DEFINE(_REENTRANT)
  36 AC_DEFINE(NORANGECHECKING)
  37
  38 dnl **** Check for some programs ****
  39
  40 AC_PROG_CC
  41 AC_PROG_CPP
  42
  43 dnl **** Check for some libraries ****
  44
  45 dnl Check for pthread
  46 AC_CHECK_LIB(pthread, pthread_join, [BASELIBS="-lpthread"])
  47
  48 AC_SUBST(BASELIBS)
  49
  50 dnl Check for SDL
  51 AM_PATH_SDL($SDL_VERSION,
  52         [HAVESDL="yes";GLBASE="sdl/i_sdlgl.o";BUILDNAMES="sdl $BUILDNAMES";GLLIBS=""],
  53         [HAVESDL="no"]
  54 )
  55
  56 AC_SUBST(GLLIBS)
  57 AC_SUBST(SDL_OGL)
  58 AC_SUBST(HAVESDL)
  59 AC_SUBST(GLBASE)
  60
  61 AC_CHECK_LIB(dl, dlopen)
  62 AC_CHECK_LIB(m, sqrt)
  63
  64 dnl Check for GL libraries
  65
  66 if test "$GLHEXEN" = "true"
  67 then
  68     AC_CHECK_LIB(GL, glBindTexture,[LIBS="$LIBS -lGL";]
  69       AC_CHECK_LIB(GLU, gluOrtho2D, [HAVEGL="yes"],
  70         AC_CHECK_LIB(MesaGL, glBindTexture,[LIBS="$LIBS -lMesaGL";]
  71           AC_CHECK_LIB(MesaGLU, gluOrtho2D, [HAVEGL="yes"], HAVEGL="no"),
  72           HAVEGL="no")
  73         ),
  74         AC_CHECK_LIB(MesaGL, glBindTexture,[LIBS="$LIBS -lMesaGL";]
  75           AC_CHECK_LIB(MesaGLU, gluOrtho2D, [HAVEGL="yes"], HAVEGL="no"),
  76         HAVEGL="no")
  77     )
  78 fi
  79
  80 dnl **** Check for gcc strength-reduce bug ****
  81
  82 if test "x${GCC}" = "xyes"
  83 then
  84   CFLAGS="$CFLAGS -Wall"
  85   AC_CACHE_CHECK( "for gcc strength-reduce bug", ac_cv_c_gcc_strength_bug,
  86                   AC_TRY_RUN([
  87 int main(void) {
  88   static int Array[[3]];
  89   unsigned int B = 3;
  90   int i;
  91   for(i=0; i<B; i++) Array[[i]] = i - 3;
  92   exit( Array[[1]] != -2 );
  93 }],
  94     ac_cv_c_gcc_strength_bug="no",
  95     ac_cv_c_gcc_strength_bug="yes",
  96     ac_cv_c_gcc_strength_bug="yes") )
  97   if test "$ac_cv_c_gcc_strength_bug" = "yes"
  98   then
  99     CFLAGS="$CFLAGS -fno-strength-reduce"
 100   fi
 101 fi
 102
 103 dnl **** Check for underscore on external symbols ****
 104
 105 AC_CACHE_CHECK("whether external symbols need an underscore prefix",
 106                ac_cv_c_extern_prefix,
 107 [saved_libs=$LIBS
 108 LIBS="conftest_asm.s $LIBS"
 109 cat > conftest_asm.s <<EOF
 110         .globl _ac_test
 111 _ac_test:
 112         .long 0
 113 EOF
 114 AC_TRY_LINK([extern int ac_test;],[if (ac_test) return 1],
 115             ac_cv_c_extern_prefix="yes",ac_cv_c_extern_prefix="no")
 116 LIBS=$saved_libs])
 117
 118 dnl **** Check for endianness ****
 119
 120 dnl AC_C_BIGENDIAN
 121
 122 dnl **** Check for functions ****
 123
 124 dnl **** Check for header files ****
 125
 126 AC_CHECK_HEADERS(\
 127         linux/cdrom.h \
 128 )
 129 AC_HEADER_STAT()
 130
 131 dnl **** Check for types ****
 132
 133 AC_C_CONST()
 134 AC_C_INLINE()
 135 AC_TYPE_SIZE_T()
 136 AC_CHECK_SIZEOF(long long,0)
 137
 138 if test "$HAVEGL" = "yes"
 139 then
 140   if test "$HAVESDL" = "yes"
 141   then
 142     BUILDNAMES="OpenGL (SDL)"
 143   else
 144     BUILDNAMES="OpenGL (GLX)"
 145   fi
 146 fi
 147
 148 dnl **** Generate output files ****
 149
 150 MAKE_NAME=Makefile
 151 AC_SUBST_FILE(MAKE_RULES)
 152
 153 AC_OUTPUT(Makefile)
 154
 155 echo
 156 echo "HHexen configuration finished."
 157 echo "Enabled targets: $BUILDNAMES"
 158 echo
 159 if test "$HAVESDL" = "no"
 160 then
 161   echo "It is recommended that you install SDL (http://www.libsdl.org)."
 162   echo "Other targets will compile, but they are no longer supported."
 163   echo "If SDL is installed, you will need to upgrade to version $SDL_VERSION"
 164   echo
 165 fi
 166 echo "Type 'make' to compile."
 167 echo