#  Copyright Noel Belcourt 2007.
#  Distributed under the Boost Software License, Version 1.0.
#    (See accompanying file LICENSE_1_0.txt or copy at
#          http://www.boost.org/LICENSE_1_0.txt)

import property ;
import generators ;
import os ;
import toolset : flags ;
import feature ;
import fortran ;
import type ;
import common ;
import gcc ;

feature.extend toolset : pgi ;
toolset.inherit pgi : unix ;
generators.override pgi.prebuilt : builtin.lib-generator ;
generators.override pgi.searched-lib-generator : searched-lib-generator ;

# Documentation and toolchain description located
# http://www.pgroup.com/resources/docs.htm

rule init ( version ? : command * : options * ) 
{
  local condition = [ common.check-init-parameters pgi : version $(version) ] ;

  local l_command = [ common.get-invocation-command pgi : pgCC : $(command) ] ;

  common.handle-options pgi : $(condition) : $(l_command) : $(options) ;
    
  command_c = $(command_c[1--2]) $(l_command[-1]:B=cc) ;

  toolset.flags pgi CONFIG_C_COMMAND $(condition) : $(command_c) ;

  flags pgi.compile DEFINES $(condition) :
    [ feature.get-values <define> : $(options) ] : unchecked ;

  # IOV_MAX support
  flags pgi.compile DEFINES $(condition) : __need_IOV_MAX : unchecked ;

  # set link flags
  flags pgi.link FINDLIBS-ST : [
    feature.get-values <find-static-library> : $(options) ] : unchecked ;

  # always link lib rt to resolve clock_gettime()
  flags pgi.link FINDLIBS-SA : rt [
    feature.get-values <find-shared-library> : $(options) ] : unchecked ;

  gcc.init-link-flags pgi gnu $(condition) ;
}

# Declare generators
generators.register-c-compiler pgi.compile.c : C : OBJ : <toolset>pgi ;
generators.register-c-compiler pgi.compile.c++ : CPP : OBJ : <toolset>pgi ;
generators.register-fortran-compiler pgi.compile.fortran : FORTRAN : OBJ : <toolset>pgi ;

# Declare flags and actions for compilation
flags pgi.compile OPTIONS : -Kieee ;
flags pgi.compile OPTIONS <link>shared : -fpic ;
flags pgi.compile OPTIONS <debug-symbols>on : -gopt ;
flags pgi.compile OPTIONS <profiling>on : -xprofile=tcov ;
flags pgi.compile OPTIONS <optimization>speed : -fast -Mx,8,0x10000000 ;
flags pgi.compile OPTIONS <optimization>space : -xO2 -xspace ;
# flags pgi.compile OPTIONS <threading>multi : -mt ;

flags pgi.compile OPTIONS <warnings>off : -Minform=severe ;
flags pgi.compile OPTIONS <warnings>on : -Minform=warn ;

flags pgi.compile.c++ OPTIONS <inlining>off : -INLINE:none ;

flags pgi.compile OPTIONS <cflags> ;
flags pgi.compile.c++ OPTIONS <cxxflags> ;
flags pgi.compile DEFINES <define> ;
flags pgi.compile INCLUDES <include> ;

flags pgi.compile.fortran OPTIONS <fflags> ;

actions compile.c
{
    "$(CONFIG_C_COMMAND)" $(OPTIONS) -D$(DEFINES) -I"$(INCLUDES)" -c -o "$(<)" "$(>)"
}

actions compile.c++
{
    "$(CONFIG_COMMAND)" $(OPTIONS) -D$(DEFINES) -I"$(INCLUDES)" -c -o "$(<)" "$(>)"
}

actions compile.fortran
{
    "$(CONFIG_F_COMMAND)" $(OPTIONS) -D$(DEFINES) -I"$(INCLUDES)" -c -o "$(<)" "$(>)"
}

# Declare flags and actions for linking
flags pgi.link OPTIONS <debug-symbols>on : -gopt ;
# Strip the binary when no debugging is needed
flags pgi.link OPTIONS <debug-symbols>off : -s ;
flags pgi.link OPTIONS <profiling>on : -xprofile=tcov ;
flags pgi.link OPTIONS <linkflags> ;
flags pgi.link OPTIONS <link>shared : -fpic ;
flags pgi.link LINKPATH <library-path> ;
flags pgi.link FINDLIBS-ST <find-static-library> ;
flags pgi.link FINDLIBS-SA <find-shared-library> ;
flags pgi.link FINDLIBS-SA <threading>multi : pthread rt ;
flags pgi.link LIBRARIES <library-file> ;
flags pgi.link LINK-RUNTIME <runtime-link>static : static ;
flags pgi.link LINK-RUNTIME <runtime-link>shared : dynamic ;
flags pgi.link RPATH <dll-path> ;

# On gcc, there are separate options for dll path at runtime and
# link time. On Solaris, there's only one: -R, so we have to use
# it, even though it's bad idea.
flags pgi.link RPATH <xdll-path> ;

rule link ( targets * : sources * : properties * )
{
    SPACE on $(targets) = " " ;
}

# reddish can only link statically and, somehow, the presence of -Bdynamic on the link line 
# marks the executable as a dynamically linked exec even though no dynamic libraries are supplied.
# Yod on redstorm refuses to load an executable that is dynamically linked.
# removing the dynamic link options should get us where we need to be on redstorm.
# "$(CONFIG_COMMAND)" $(OPTIONS) -L"$(LINKPATH)" -R"$(RPATH)" -o "$(<)" "$(>)" "$(LIBRARIES)" -Bdynamic -l$(FINDLIBS-SA) -Bstatic -l$(FINDLIBS-ST) -B$(LINK-RUNTIME)
actions link bind LIBRARIES
{
    "$(CONFIG_COMMAND)" $(OPTIONS) -L"$(LINKPATH)" -R"$(RPATH)" -o "$(<)" "$(>)" "$(LIBRARIES)" -Bstatic -l$(FINDLIBS-ST) -Bdynamic -l$(FINDLIBS-SA) -B$(LINK-RUNTIME)
}

# Slight mods for dlls
rule link.dll ( targets * : sources * : properties * )
{
    SPACE on $(targets) = " " ;
}

# "$(CONFIG_COMMAND)" $(OPTIONS) -L"$(LINKPATH)" -R"$(RPATH)" -o "$(<)" -h$(<[1]:D=) -G "$(>)" "$(LIBRARIES)" -Bdynamic -l$(FINDLIBS-SA) -Bstatic -l$(FINDLIBS-ST) -B$(LINK-RUNTIME)

actions link.dll bind LIBRARIES
{
    "$(CONFIG_COMMAND)" $(OPTIONS) -shared -L"$(LINKPATH)" -R"$(RPATH)" -o "$(<)" "$(>)" -Wl,-h -Wl,$(<[1]:D=) "$(LIBRARIES)" -Bdynamic -l$(FINDLIBS-SA) -Bstatic -l$(FINDLIBS-ST) -B$(LINK-RUNTIME)
}

actions updated together piecemeal pgi.archive
{
    ar -rc$(ARFLAGS:E=) "$(<)" "$(>)"
}