Compiler-gcc.gmk

#
# Copyright 2005-2008 Sun Microsystems, Inc.  All Rights Reserved.
# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
#
# This code is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License version 2 only, as
# published by the Free Software Foundation.  Sun designates this
# particular file as subject to the "Classpath" exception as provided
# by Sun in the LICENSE file that accompanied this code.
#
# This code is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
# version 2 for more details (a copy is included in the LICENSE file that
# accompanied this code).
#
# You should have received a copy of the GNU General Public License version
# 2 along with this work; if not, write to the Free Software Foundation,
# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
#
# Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
# CA 95054 USA or visit www.sun.com if you need additional information or
# have any questions.
#

#
# GCC Compiler settings
#

COMPILER_NAME=GCC

ifeq ($(PLATFORM), windows)

  # Settings specific to Windows, pretty stale, hasn't been used
  CC           = $(COMPILER_PATH)gcc
  CPP          = $(COMPILER_PATH)gcc -E
  CXX          = $(COMPILER_PATH)g++
  CCC          = $(COMPILER_PATH)g++
  LIBEXE       = $(COMPILER_PATH)lib
  LINK         = $(COMPILER_PATH)link
  RC           = $(MSDEVTOOLS_PATH)link
  LINK32       = $(LINK)
  RSC          = $(RC)
  # unset any GNU Make settings of MFLAGS and MAKEFLAGS which may mess up nmake
  NMAKE          = MFLAGS= MAKEFLAGS= $(COMPILER_PATH)nmake -nologo
  ifeq ($(ARCH_DATA_MODEL), 32)
    CC_VER  = UNKNOWN
  else
    CC_VER  = UNKNOWN
  endif
  _LINK_VER :=$(shell $(LINK) 2>&1 | $(HEAD) -n 1)
  LINK_VER  :=$(call GetVersion,"$(_LINK_VER)")

endif

ifeq ($(PLATFORM), linux)

  # Settings specific to Linux
  CC             = $(COMPILER_PATH)gcc
  CPP            = $(COMPILER_PATH)gcc -E
  # statically link libstdc++ before C++ ABI is stablized on Linux
  STATIC_CXX     = true
  ifeq ($(STATIC_CXX),true)
    # g++ always dynamically links libstdc++, even we use "-Wl,-Bstatic -lstdc++"
    # We need to use gcc to statically link the C++ runtime. gcc and g++ use
    # the same subprocess to compile C++ files, so it is OK to build using gcc.
    CXX            = $(COMPILER_PATH)gcc
  else
    CXX            = $(COMPILER_PATH)g++
  endif
  ifneq ("$(findstring sparc,$(ARCH))", "")
    # sparc or sparcv9
    REQUIRED_CC_VER = 4.0
    REQUIRED_GCC_VER = 4.0.*
  else
    REQUIRED_CC_VER = 3.2
    ifeq ($(ARCH_DATA_MODEL), 32)
      REQUIRED_GCC_VER = 3.2.1*
      REQUIRED_GCC_VER_INT = 3.2.1-7a
    else
      ifeq ($(ARCH), amd64)
        REQUIRED_GCC_VER = 3.2.*
      endif
      ifeq ($(ARCH), ia64)
        REQUIRED_GCC_VER = 2.9[56789].*
      endif
    endif
  endif
  # Option used to create a shared library
  SHARED_LIBRARY_FLAG = -shared -mimpure-text
  SUN_COMP_VER := $(shell $(CC) --verbose 2>&1 )

endif

ifeq ($(PLATFORM), solaris)

  # Settings specific to Solaris
  CC             = $(COMPILER_PATH)gcc
  CPP            = $(COMPILER_PATH)gcc -E
  CXX            = $(COMPILER_PATH)g++
  REQUIRED_CC_VER = 3.2

  # Option used to create a shared library
  SHARED_LIBRARY_FLAG = -G
  # But gcc is still needed no matter what on 32bit
  ifeq ($(ARCH_DATA_MODEL), 32)
    REQUIRED_GCC_VER = 2.95
    GCC =$(GCC_COMPILER_PATH)gcc
    _GCC_VER :=$(shell $(GCC) -dumpversion 2>&1 )
    GCC_VER  :=$(call GetVersion,"$(_GCC_VER)")
  endif

endif

# Get gcc version
_CC_VER :=$(shell $(CC) -dumpversion 2>&1 )
CC_VER  :=$(call GetVersion,"$(_CC_VER)")