configure.in

   1
   2 dnl /**-------------------------------------------------------------------**
   3 dnl  **                              PIPLIB                               **
   4 dnl  **-------------------------------------------------------------------**
   5 dnl  **                           configure.in                            **
   6 dnl  **-------------------------------------------------------------------**
   7 dnl  **                   First version: august 11th  2001                **
   8 dnl  **-------------------------------------------------------------------**/
   9 dnl
  10 dnl Input file for autoconf to build a configuration shellscript.
  11 dnl To build the configure script from the PipLib's top-level directory, use
  12 dnl     autoconf -I autoconf -o configure autoconf/configure.in
  13 dnl for older versions of autoconf use -l instead
  14 dnl     autoconf -l autoconf autoconf/configure.in > configure
  15 dnl     chmod +x configure
  16
  17
  18 AC_PREREQ(2.13)
  19 AC_INIT(source/piplib.c)
  20 AC_CONFIG_AUX_DIR(autoconf)
  21 AC_CONFIG_MACRO_DIR([m4])
  22 AM_INIT_AUTOMAKE(piplib, 1.4.0)
  23 AC_SUBST(versioninfo)
  24 versioninfo=3:0:1
  25
  26 dnl /**************************************************************************
  27 dnl  *                              Checking                                  *
  28 dnl  **************************************************************************/
  29
  30
  31 if test "x$prefix" != "xNONE"; then
  32     prefix_wd=`cd $prefix && pwd`
  33     srcdir_wd=`cd $srcdir && pwd`
  34     wd=`pwd`
  35     if test "x$prefix_wd" = "x$srcdir_wd"; then
  36         AC_MSG_ERROR(Installation in source directory not supported)
  37     fi
  38     if test "x$prefix_wd" = "x$wd"; then
  39         AC_MSG_ERROR(Installation in build directory not supported)
  40     fi
  41 fi
  42
  43 dnl Checks for programs.
  44 AC_PROG_CC
  45 AC_PROG_LN_S
  46 AC_PROG_MAKE_SET
  47 AC_CHECK_PROG(CD, cd)
  48 dnl Configure needs an empty install.sh file with this, i HATE that...
  49 AC_PROG_INSTALL
  50 AC_CANONICAL_HOST
  51 AC_PROG_LIBTOOL
  52 AC_CHECK_PROG(TEXI2DVI, texi2dvi, texi2dvi, [])
  53 AM_CONDITIONAL(HAVE_TEXI2DVI, test -n "$TEXI2DVI")
  54
  55 AX_CC_MAXOPT
  56
  57 dnl Checks for typedefs, structures, and compiler characteristics.
  58 AC_C_CONST
  59 AC_TYPE_SIZE_T
  60
  61
  62 dnl Checks for libraries.
  63 dnl Replace `main' with a function in -lc:
  64 dnl AC_CHECK_LIB(c, main)
  65
  66
  67 dnl Checks for header files.
  68 AC_HEADER_STDC
  69
  70
  71 dnl Checks sizeof the two supported cases.
  72 AC_CHECK_SIZEOF(int,1)
  73 AC_CHECK_SIZEOF(long long int,1)
  74
  75
  76 dnl /**************************************************************************
  77 dnl  *                             Option setting                             *
  78 dnl  **************************************************************************/
  79
  80
  81 dnl The different packages that can be built and installed.
  82 PIP="pip"
  83 INT_BITS=`expr $ac_cv_sizeof_int \* 8`
  84 eval DFLAGS$INT_BITS=-DLINEAR_VALUE_IS_INT
  85 LONG_BITS=`expr $ac_cv_sizeof_long_long_int \* 8`
  86 eval DFLAGS$LONG_BITS=-DLINEAR_VALUE_IS_LONGLONG
  87 MP_BITS="MP"
  88 MP_DFLAGS=-DLINEAR_VALUE_IS_MP
  89 NEED_MP="no"
  90
  91
  92 dnl Options.
  93 dnl --with-pip=yes, --with-pip=no or --without-pip
  94 AC_ARG_WITH(pip,
  95         [  --without-pip           disable the compilation of pip],
  96         [ echo "Package pip : $withval" &&
  97           if test "$withval"="no" ; then
  98                 PIP=""
  99           fi ])
 100
 101 AC_ARG_WITH(gmp,
 102             [AS_HELP_STRING([--with-gmp],
 103                             [Build gmp version])])
 104 if test "x$with_gmp" = "x"; then
 105         with_gmp=yes
 106 fi
 107 AC_ARG_WITH(gmp_prefix,
 108             [AS_HELP_STRING([--with-gmp-prefix=DIR],
 109                             [Prefix of gmp installation])])
 110 AC_ARG_WITH(gmp_exec_prefix,
 111             [AS_HELP_STRING([--with-gmp-exec-prefix=DIR],
 112                             [Exec prefix of gmp installation])])
 113
 114 if test "x$with_gmp_prefix" != "x" -o "x$with_gmp_exec_prefix" != "x"; then
 115         with_gmp=yes
 116 fi
 117
 118 if test "x$with_gmp" = "xyes"; then
 119         NEED_MP="yes"
 120 fi
 121
 122 if test "x$with_gmp_prefix" != "x" -a "x$with_gmp_exec_prefix" = "x"; then
 123         with_gmp_exec_prefix=$with_gmp_prefix
 124 fi
 125
 126 AC_ARG_WITH(bits,
 127         [AS_HELP_STRING([--with-bits=32,64,gmp,all],
 128                         [integer type version(s) to build (default is all)])])
 129
 130 TEST_MP="yes"
 131 TO_BUILD="32 64"
 132
 133 case "$with_bits" in
 134 *all*|"")
 135         ;;
 136 *)
 137         TO_BUILD=""
 138         TEST_MP="no"
 139         case "$with_bits" in *32*) TO_BUILD="$TO_BUILD 32" ;; esac
 140         case "$with_bits" in *64*) TO_BUILD="$TO_BUILD 64" ;; esac
 141         case "$with_bits" in *gmp*) TEST_MP="yes"; NEED_MP="yes" ;; esac
 142         ;;
 143 esac
 144
 145
 146 dnl /**************************************************************************
 147 dnl  *                            Where is GMP?                               *
 148 dnl  **************************************************************************/
 149
 150
 151 dnl Checking for gmp
 152 if test "$with_gmp" = "no"; then
 153   echo "GMP package not defined"
 154 else
 155   if test "$TEST_MP" != "no"; then
 156     if test "x$with_gmp_prefix" != "x" ; then
 157       CPPFLAGS="-I$with_gmp_prefix/include $CPPFLAGS"
 158     fi
 159
 160     if test "x$with_gmp_exec_prefix" != "x" ; then
 161       EXTRA_LIBS="$EXTRA_LIBS -L$with_gmp_exec_prefix/lib"
 162       LDFLAGS="-L$with_gmp_exec_prefix/lib $LDFLAGS"
 163     fi
 164
 165     gmp_found=no
 166     AC_CHECK_HEADER(gmp.h, [
 167         AC_CHECK_LIB(gmp, __gmpz_init,
 168                      [gmp_found=yes],
 169                      [AC_MSG_WARN(Can't find gmp library.)])
 170     ], [AC_MSG_WARN(Can't find gmp headers.)])
 171     if test $gmp_found = yes; then
 172         EXTRA_LIBS="$EXTRA_LIBS -lgmp"
 173         TO_BUILD="$TO_BUILD MP"
 174     else
 175         if test $NEED_MP = yes; then
 176                 AC_MSG_ERROR([gmp not found])
 177         fi
 178     fi
 179
 180     AC_MSG_CHECKING(whether gmp works)
 181     AC_MSG_RESULT($gmp_found)
 182   fi
 183 fi
 184
 185
 186 dnl /**************************************************************************
 187 dnl  *                       Packages to actually build                       *
 188 dnl  **************************************************************************/
 189
 190
 191 for tb in $TO_BUILD; do
 192     piplibs="$piplibs libpiplib$tb.la"
 193     if test "x$PIP" != "x"; then
 194         pips="$pips pip$tb\$(EXEEXT)"
 195     fi
 196     examples="$examples example$tb\$(EXEEXT)"
 197 done
 198
 199 AC_SUBST(GIT_INDEX)
 200 if test -f $srcdir/.git/HEAD; then
 201     GIT_INDEX="\$(top_srcdir)/.git/index"
 202 fi
 203
 204 dnl /**************************************************************************
 205 dnl  *                            Substitutions                               *
 206 dnl  **************************************************************************/
 207
 208
 209 dnl Substitutions to do in Makefile.in.
 210 AC_SUBST(examples)
 211 AC_SUBST(piplibs)
 212 AC_SUBST(pips)
 213 AC_SUBST(EXTRA_LIBS)
 214
 215 dnl compilation flags
 216 AC_SUBST(DFLAGS32)
 217 AC_SUBST(DFLAGS64)
 218 AC_SUBST(MP_DFLAGS)
 219
 220 AC_CONFIG_FILES(Makefile example/Makefile test/Makefile doc/Makefile)
 221 AC_CONFIG_FILES([genversion.sh], [chmod +x genversion.sh])
 222 AC_CONFIG_COMMANDS([version.h],
 223     [echo '#define PIPLIB_HEAD "'`./genversion.sh`'"' > version.h])
 224 AC_OUTPUT
 225
 226
 227 echo "             /*-----------------------------------------------*"
 228 echo "              *         PIP/PipLib configuration is OK        *"
 229 echo "              *-----------------------------------------------*/"
 230 echo "It appears that your system is OK to start PIP/PipLib compilation. You"
 231 echo "need now to type \"make uninstall\" if your are upgrading an old version."
 232 echo "Next, type \"make\" to build the program. Lastly type \"make install\" to"
 233 echo "install it on your system (log as root if necessary)."