pycaml/configure.in

   1 dnl Process this file with autoconf to produce a configure script.
   2 AC_INIT(pycaml_ml.c)
   3
   4 dnl Checks for programs.
   5
   6 dnl Checks for libraries.
   7 dnl Replace `main' with a function in -lpython:
   8 AC_CHECK_LIB(python, main)
   9
  10 dnl Checks for header files.
  11 AC_CHECK_HEADERS(unistd.h)
  12
  13 dnl Checks for typedefs, structures, and compiler characteristics.
  14 AC_C_CONST
  15
  16 dnl Checks for library functions.
  17 AC_HEADER_STDC
  18
  19 dnl ********************
  20 dnl Check for Python.
  21 dnl ********************
  22
  23 AM_PATH_PYTHON()
  24
  25 dnl Find Python executable
  26 AC_PATH_PROGS(PYPACKAGE, python)
  27
  28 dnl Extract the version using Python, check against 1.5+
  29
  30 changequote(<<, >>)
  31 PY_PREFIX=`$PYPACKAGE getprefix.py`
  32 PY_VERSION=`$PYPACKAGE getversion.py`
  33 changequote([, ])
  34
  35 if test `echo $PY_VERSION | tr -d .` -lt 15; then
  36 echo "Sorry, you need to have Python 1.5+ installed - update your version!"
  37     AC_MSG_ERROR([*** Python 1.5 or better required])
  38 fi
  39
  40 dnl Find the Python.h header file
  41
  42 AC_MSG_CHECKING(for Python header files)
  43 changequote(<<, >>)
  44 PY_INCLUDE=`$PYPACKAGE -c 'import sys ; print "%s/include/python%s" % (sys.prefix, sys.version[:3])'`
  45 changequote([, ])
  46
  47 if test -r "$PY_INCLUDE/Python.h"; then
  48    PY_CFLAGS="-I$PY_INCLUDE"
  49 else
  50    AC_MSG_ERROR([Could not find Python.h in $PY_INCLUDE])
  51 fi
  52 AC_MSG_RESULT(found)
  53
  54 dnl Find the Python library
  55
  56 AC_MSG_CHECKING(for Python library)
  57 PYLIB=""
  58 changequote(<<, >>)
  59 PY_PREFIX=`$PYPACKAGE -c 'import sys; print sys.prefix'`
  60 PYLIBVER=`$PYPACKAGE -c 'import sys; print sys.version[:3]'`
  61 changequote([, ])
  62
  63 py_paths="$PY_PREFIX/lib/python$PYLIBVER/config $PYPREFIX/lib"
  64 py_suffix="$PYLIBVER.so $PYLIBVER.a .so .a"
  65
  66 dnl Try for specific version first, then the generic version, then panic
  67
  68 for ppath in $py_paths ; do
  69     if test -r "$ppath/libpython$PYLIBVER.so" -o \
  70             -r "$ppath/libpython$PYLIBVER.a"; then
  71         PYLIB="-cclib -L$ppath -cclib -lpython$PYLIBVER"
  72         break
  73     fi
  74
  75     if test -r "$ppath/libpython.so" -o \
  76             -r "$ppath/libpython.a"; then
  77         PYLIB="-cclib -L$ppath -cclib -lpython"
  78     break
  79     fi
  80 done
  81
  82 if test "x$PYLIB" != x ; then
  83     PY_LIBS="$PYLIB $PY_LIBS"
  84     AC_MSG_RESULT(found)
  85 else
  86     AC_MSG_ERROR([*** Python library not found])
  87 fi
  88
  89 dnl Get the libraries that python depends on
  90
  91 AC_PATH_PROG(haveldd, ldd)
  92 AC_MSG_CHECKING(for Python's dependencies)
  93
  94 if test x$haveldd != x ; then
  95     changequote(<<, >>)
  96     py_deps=`ldd $PYPACKAGE | sed 's/\( *lib\([^\/]*\)\.so.*=.*$\)/-cclib\ \"-l\2\"/p; d'`
  97     for py_lib in $py_deps ; do
  98         if test "$py_lib" != "-lm" && test "$py_lib" != "-lc" ; then
  99             PY_DEPS="$PY_DEPS $py_lib"
 100         fi
 101     done
 102       changequote([, ])
 103 fi
 104
 105 dnl only GNU ld seems to know -E flag
 106
 107 if $LD -v 2>&1 </dev/null | egrep '(GNU|with BFD)' 1>&5; then
 108     PY_LIBS="-Wl,-E $PY_LIBS $PY_DEPS"
 109 else
 110     PY_LIBS="$PY_LIBS $PY_DEPS"
 111 fi
 112
 113 export PY_LIBS
 114 export PY_VERSION
 115 export PY_PREFIX
 116
 117 AC_SUBST(PY_LIBS)
 118 AC_SUBST(PY_VERSION)
 119 AC_SUBST(PY_PREFIX)
 120
 121 AC_OUTPUT(Makefile)