+dnl GCC's potential uninitialized use analysis is weak and presents lots of
+dnl false positives, so disable it.
+if test "$GXX" = "yes"
+then
+ CXX_FLAG_CHECK(NO_MAYBE_UNINITIALIZED, [-Wno-maybe-uninitialized])
+ dnl gcc 4.7 introduced -Wmaybe-uninitialized to distinguish cases which are
+ dnl known to be uninitialized from cases which might be uninitialized. We
+ dnl still want to catch the first kind of errors.
+ if test "$NO_MAYBE_UNINITIALIZED" != "-Wno-maybe-uninitialized"
+ then
+ CXX_FLAG_CHECK(NO_UNINITIALIZED, [-Wno-uninitialized])
+ else
+ dnl Some versions of gcc accept unsupported -W flags if there is
+ dnl no warning but stop with an error when a warning is
+ dnl encountered. If this gcc is earlier than 4.7, just use
+ dnl -Wno-uninitialized.
+ gxx_version=`$CXX -dumpversion`
+ gxx_version_major=`echo $gxx_version | cut -d'.' -f1`
+ gxx_version_minor=`echo $gxx_version | cut -d'.' -f2`
+ gxx_version_patch=`echo $gxx_version | cut -d'.' -f3`
+
+ if test "$gxx_version_major" -ge "4" \
+ && test "$gxx_version_minor" -ge "7"; then
+ dnl AC_SUBST doesn't work with empty strings.
+ NO_UNINITIALIZED=
+ else
+ NO_MAYBE_UNINITIALIZED=
+ CXX_FLAG_CHECK(NO_UNINITIALIZED, [-Wno-uninitialized])
+ fi
+ fi
+else
+ NO_UNINITIALIZED=
+ NO_MAYBE_UNINITIALIZED=
+fi
+AC_MSG_RESULT([$NO_VARIADIC_MACROS $NO_MISSING_FIELD_INITIALIZERS $NO_NESTED_ANON_TYPES $COVERED_SWITCH_DEFAULT $NO_UNINITIALIZED $NO_MAYBE_UNINITIALIZED])
+
+AC_ARG_WITH([python],
+ [AS_HELP_STRING([--with-python], [path to python])],
+ [PYTHON="$withval"])
+
+if test -n "$PYTHON" && test -x "$PYTHON" ; then
+ AC_MSG_CHECKING([for python])
+ AC_MSG_RESULT([user defined: $with_python])
+else
+ if test -n "$PYTHON" ; then
+ AC_MSG_WARN([specified python ($PYTHON) is not usable, searching path])
+ fi
+
+ AC_PATH_PROG([PYTHON], [python python2 python26],
+ [AC_MSG_RESULT([not found])
+ AC_MSG_ERROR([could not find python 2.5 or higher])])
+fi
+
+AC_MSG_CHECKING([for python >= 2.5])
+ac_python_version=`$PYTHON -c 'import sys; print sys.version.split()[[0]]'`
+ac_python_version_major=`echo $ac_python_version | cut -d'.' -f1`
+ac_python_version_minor=`echo $ac_python_version | cut -d'.' -f2`
+ac_python_version_patch=`echo $ac_python_version | cut -d'.' -f3`
+if test "$ac_python_version_major" -eq "2" \
+ && test "$ac_python_version_minor" -ge "5" ; then
+ AC_MSG_RESULT([$PYTHON ($ac_python_version)])
+else
+ AC_MSG_RESULT([not found])
+ AC_MSG_FAILURE([found python $ac_python_version ($PYTHON); required >= 2.5])
+fi
projects / oota-llvm.git / blobdiff