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dnl ICE_CXX_INCLUDE_DIR
dnl -------------------
dnl
dnl Set output variable CXX_INCLUDE_DIR to the name of a directory
dnl where the C++ compiler looks for C++ include files.
dnl
AC_DEFUN(ICE_CXX_INCLUDE_DIR,
[
AC_MSG_CHECKING(for directory to install c++ include files)
AC_CACHE_VAL(ice_cv_cxx_include_dir,
[
cat > conftest.cc << EOF
#include <iostream.h>
EOF
changequote(,)dnl
$CXXCPP $DEFS conftest.cc > conftest.ii 2>&5
if test $? != 0; then
AC_MSG_ERROR(${CXXCPP} could not find iostream.h)
else
ice_file=`grep '^# 1' conftest.ii | grep iostream.h | \
head -1 | sed 's/^.*"\(.*\)".*$/\1/'`
ice_cv_cxx_include_dir=`echo $ice_file | sed 's%/[^/][^/]*$%%'`
fi
if test "$ice_cv_cxx_include_dir" = ""; then
ice_cv_cxx_include_dir="$prefix/include"
for pfx in "$prefix" "$exec_prefix"; do
for dir in "$pfx/lib/g++-include" "$pfx/include/CC" \
"$pfx/include" /usr/include; do
if test -d "$dir"; then
ice_cv_cxx_include_dir="$dir"
break
fi
done
done
fi
changequote([,])dnl
rm -f conftest.cc conftest.ii
])
CXX_INCLUDE_DIR=$ice_cv_cxx_include_dir
AC_MSG_RESULT(${CXX_INCLUDE_DIR})
AC_SUBST(CXX_INCLUDE_DIR)
])dnl
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