m4/python.m4

   1 ## this one is commonly used with AM_PATH_PYTHONDIR ...
   2 dnl AM_CHECK_PYMOD(MODNAME [,SYMBOL [,ACTION-IF-FOUND [,ACTION-IF-NOT-FOUND]]])
   3 dnl Check if a module containing a given symbol is visible to python.
   4 AC_DEFUN([AM_CHECK_PYMOD],
   5 [AC_REQUIRE([AM_PATH_PYTHON])
   6 py_mod_var=`echo $1['_']$2 | sed 'y%./+-%__p_%'`
   7 AC_MSG_CHECKING(for ifelse([$2],[],,[$2 in ])python module $1)
   8 AC_CACHE_VAL(py_cv_mod_$py_mod_var, [
   9 ifelse([$2],[], [prog="
  10 import sys
  11 try:
  12         import $1
  13 except ImportError:
  14         sys.exit(1)
  15 except:
  16         sys.exit(0)
  17 sys.exit(0)"], [prog="
  18 import $1
  19 $1.$2"])
  20 if $PYTHON -c "$prog" 1>&AC_FD_CC 2>&AC_FD_CC
  21   then
  22     eval "py_cv_mod_$py_mod_var=yes"
  23   else
  24     eval "py_cv_mod_$py_mod_var=no"
  25   fi
  26 ])
  27 py_val=`eval "echo \`echo '$py_cv_mod_'$py_mod_var\`"`
  28 if test "x$py_val" != xno; then
  29   AC_MSG_RESULT(yes)
  30   ifelse([$3], [],, [$3
  31 ])dnl
  32 else
  33   AC_MSG_RESULT(no)
  34   ifelse([$4], [],, [$4
  35 ])dnl
  36 fi
  37 ])
  38
  39 dnl a macro to check for ability to create python extensions
  40 dnl  AM_CHECK_PYTHON_HEADERS([ACTION-IF-POSSIBLE], [ACTION-IF-NOT-POSSIBLE])
  41 dnl function also defines PYTHON_INCLUDES
  42 AC_DEFUN([AM_CHECK_PYTHON_HEADERS],
  43 [AC_REQUIRE([AM_PATH_PYTHON])
  44 AC_MSG_CHECKING(for headers required to compile python extensions)
  45 dnl deduce PYTHON_INCLUDES
  46 py_prefix=`$PYTHON -c "import sys; print sys.prefix"`
  47 py_exec_prefix=`$PYTHON -c "import sys; print sys.exec_prefix"`
  48 PYTHON_INCLUDES="-I${py_prefix}/include/python${PYTHON_VERSION}"
  49 if test "$py_prefix" != "$py_exec_prefix"; then
  50   PYTHON_INCLUDES="$PYTHON_INCLUDES -I${py_exec_prefix}/include/python${PYTHON_VERSION}"
  51 fi
  52 AC_SUBST(PYTHON_INCLUDES)
  53 dnl check if the headers exist:
  54 save_CPPFLAGS="$CPPFLAGS"
  55 CPPFLAGS="$CPPFLAGS $PYTHON_INCLUDES"
  56 AC_TRY_CPP([#include <Python.h>],dnl
  57 [AC_MSG_RESULT(found)
  58 $1],dnl
  59 [AC_MSG_RESULT(not found)
  60 $2])
  61 CPPFLAGS="$save_CPPFLAGS"
  62 ])