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openmpi/config/cxx_find_template_repository.m4

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dnl -*- shell-script -*-
dnl
dnl $HEADER$
dnl
define([LAM_CXX_FIND_TEMPLATE_REPOSITORY],[
#
# Arguments: None
#
# Dependencies: None
#
# See if the compiler makes template repository directories
# Warning: this is a really screwy example! -JMS
#
# Sets LAM_CXX_TEMPLATE_REPOSITORY to the template repository, or blank.
# Must call AC_SUBST manually
#
# Find the repository
AC_MSG_CHECKING([for C++ template repository directory])
mkdir conf_tmp_$$
cd conf_tmp_$$
cat > conftest.h <<EOF
template <class T>
class foo {
public:
foo(T yow) : data(yow) { yow.member(3); };
void member(int i);
private:
T data;
};
class bar {
public:
bar(int i) { data = i; };
void member(int j) { data = data * j; };
private:
int data;
};
EOF
cat > conftest2.C <<EOF
#include "conftest.h"
void
some_other_function(void)
{
foo<bar> var1(6);
foo< foo<bar> > var2(var1);
}
EOF
cat > conftest1.C <<EOF
#include "conftest.h"
void some_other_function(void);
template <class T>
void
foo<T>::member(int i)
{
i += 2;
}
int
main(int argc, char *argv[])
{
foo<bar> var1(6);
foo< foo<bar> > var2(var1);
some_other_function();
return 0;
}
EOF
lam_template_failed=
echo configure:__oline__: $CXX $CXXFLAGS -c conftest1.C >&5
$CXX $CXXFLAGS -c conftest1.C >&5 2>&5
if test ! -f conftest1.o ; then
AC_MSG_RESULT([templates not supported?])
echo configure:__oline__: here is the program that failed: >&5
cat conftest1.C >&5
echo configure:__oline__: here is conftest.h: >&5
cat conftest.h >&5
lam_template_failed=1
else
echo configure:__oline__: $CXX $CXXFLAGS -c conftest2.C >&5
$CXX $CXXFLAGS -c conftest2.C >&5 2>&5
if test ! -f conftest2.o ; then
AC_MSG_RESULT([unknown error])
echo configure:__oline__: here is the program that failed: >&5
cat conftest2.C >&5
echo configure:__oline__: here is conftest.h: >&5
cat conftest.h >&5
else
rm -rf conftest*
for lam_file in `ls`
do
if test "$lam_file" != "." -a "$lam_file" != ".."; then
# Is it a directory?
if test -d "$lam_file"; then
lam_template_dir="$lam_file $lam_template_dir"
# Or is it a file?
else
name="`echo $lam_file | cut -d. -f1`"
temp_mask=
if test "$name" = "main" -o "$name" = "other"; then
temp_mask="`echo $lam_file | cut -d. -f2`"
if test "$lam_template_filemask" = ""; then
lam_template_filemask="$temp_mask";
elif test "`echo $lam_template_filemask | grep $temp_mask`" = ""; then
lam_template_filemask="$lam_template_filemask $temp_mask"
fi
fi
fi
fi
done
if test "$lam_template_filemask" != ""; then
temp_mask=
for mask in $lam_template_filemask
do
temp_mask="*.$mask $temp_mask"
done
lam_template_filemask=$temp_mask
fi
fi
fi
LAM_CXX_TEMPLATE_REPOSITORY="$lam_template_dir $lam_template_filemask"
if test "`echo $LAM_CXX_TEMPLATE_REPOSITORY`" != ""; then
AC_MSG_RESULT([$LAM_CXX_TEMPLATE_REPOSITORY])
else
AC_MSG_RESULT([not used])
fi
cd ..
rm -rf conf_tmp_$$
# Clean up
unset lam_file lam_template_failed lam_template_dir])dnl