64 bit vs. 32 bit

[clytle374]

I delete the file (above post)and ran SVN, seemed to work, is this OK practice.

Code:

#if env['arch'] == 'x86':
#    env.Append(CCFLAGS="-march= -mtune=generic")
if env['arch'] == 'axp':
    env.Append(CCFLAGS="-march=athlon-xp")
elif env['arch'] == 'p4':
    env.Append(CCFLAGS="-march=pentium4")
elif env['arch'] == 'a64':
    env.Append(CCFLAGS="[color=red]-m32[/color]")

running
scons arch=a64 install


returned

Code:

build/gui/textbox.o: In function `VGUI::TextBox::TextBox(VGUI::Widget*)':
textbox.cpp:(.text+0x211e): undefined reference to `std::basic_string<char, std::char_traits<char>, std::allocator<char> >::assign(char const*, unsigned int)'
textbox.cpp:(.text+0x2139): undefined reference to `std::basic_string<char, std::char_traits<char>, std::allocator<char> >::assign(char const*, unsigned int)'
build/gui/toggle.o: In function `VGUI::Toggle::Toggle(VGUI::Widget*)':
toggle.cpp:(.text+0xb26): undefined reference to `std::basic_string<char, std::char_traits<char>, std::allocator<char> >::assign(char const*, unsigned int)'
build/gui/toggle.o:toggle.cpp:(.text+0x1626): more undefined references to `std::basic_string<char, std::char_traits<char>, std::allocator<char> >::assign(char const*, unsigned int)' follow
collect2: ld returned 1 exit status
scons: *** [build/vdrift] Error 1
scons: building terminated because of errors.

I think i'm missing the 32 bit somthing here, Any ideas on what? Better yet How do i track an error like this. ie how to find where "std::basic_string<char" comes from.

How would you detect deps for the target arch not "running or default" one, this could be a problem right?