Boost Build profile variant

From: Toon Knapen (toon_at_[hidden])
Date: 2001-06-10 06:16:01

As already discussed with Dave I would like that also a 'profile'
variant is added to the system (This is generally similar to 'release'
but adds a small overhead for timing the functions and running the
resulting `exe` will produce files containing profile information). To
support this

variant profile :
    $(common-properties)
    <debug-symbols>off
    <profile-symbols>on
    <runtime-build>release
    <optimization>speed
    <inlining>full
    <define>NDEBUG
    ;

should be added to features.jam.
For defining the profile-symbols following should e.g. be added to
gcc-tools.jam

flags gcc CFLAGS <profile-symbols>on : -pg ;
flags gcc LINKFLAGS <profile-symbols>on : -pg ;

toon