m4/am-check-python-headers.m4

   1 dnl a macro to check for ability to create python extensions
   2 dnl  AM_CHECK_PYTHON_HEADERS([ACTION-IF-POSSIBLE], [ACTION-IF-NOT-POSSIBLE])
   3 dnl function also defines PYTHON_INCLUDES
   4 AC_DEFUN([AM_CHECK_PYTHON_HEADERS],
   5 [AC_REQUIRE([AM_PATH_PYTHON])
   6 AC_MSG_CHECKING(for headers required to compile python extensions)
   7 dnl deduce PYTHON_INCLUDES
   8 py_prefix=`$PYTHON -c "import sys; print sys.prefix"`
   9 py_exec_prefix=`$PYTHON -c "import sys; print sys.exec_prefix"`
  10 PYTHON_INCLUDES="-I${py_prefix}/include/python${PYTHON_VERSION}"
  11 if test "$py_prefix" != "$py_exec_prefix"; then
  12   PYTHON_INCLUDES="$PYTHON_INCLUDES -I${py_exec_prefix}/include/python${PYTHON_VERSION}"
  13 fi
  14 AC_SUBST(PYTHON_INCLUDES)
  15 dnl check if the headers exist:
  16 save_CPPFLAGS="$CPPFLAGS"
  17 CPPFLAGS="$CPPFLAGS $PYTHON_INCLUDES"
  18 AC_TRY_CPP([#include <Python.h>],dnl
  19 [AC_MSG_RESULT(found)
  20 $1],dnl
  21 [AC_MSG_RESULT(not found)
  22 $2])
  23 CPPFLAGS="$save_CPPFLAGS"
  24 ])