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      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 ])
     63