[lmi-commits] [6472] Support MinGW-w64 cross compiler

[Greg Chicares]

Revision: 6472
          http://svn.sv.gnu.org/viewvc/?view=rev&root=lmi&revision=6472
Author:   chicares
Date:     2016-01-18 01:52:52 +0000 (Mon, 18 Jan 2016)
Log Message:
-----------
Support MinGW-w64 cross compiler

Modified Paths:
--------------
    lmi/trunk/workhorse.make

Modified: lmi/trunk/workhorse.make
===================================================================
--- lmi/trunk/workhorse.make    2016-01-18 01:31:24 UTC (rev 6471)
+++ lmi/trunk/workhorse.make    2016-01-18 01:52:52 UTC (rev 6472)
@@ -141,12 +141,14 @@
 
 ifeq      (3.4.4,$(gnu_cpp_version))
 else ifeq (3.4.5,$(gnu_cpp_version))
+else ifeq (4.9.2,$(gnu_cpp_version))
 else
   $(error Untested $(GNU_CPP) version '$(gnu_cpp_version)')
 endif
 
 ifeq      (3.4.4,$(gnu_cxx_version))
 else ifeq (3.4.5,$(gnu_cxx_version))
+else ifeq (4.9.2,$(gnu_cxx_version))
 else
   $(error Untested $(GNU_CXX) version '$(gnu_cxx_version)')
 endif
@@ -410,6 +412,19 @@
   # Use a correct snprintf() implementation:
   #   http://article.gmane.org/gmane.comp.gnu.mingw.user/27539
   cxx_standard += -posix
+else ifeq (4.9.2,$(gcc_version))
+  # See:
+  #   http://lists.nongnu.org/archive/html/lmi/2015-12/msg00028.html
+  #   http://lists.nongnu.org/archive/html/lmi/2015-12/msg00040.html
+  # XMLWRAPP !! '-Wno-deprecated-declarations' needed for auto_ptr
+  gcc_version_specific_warnings := \
+    -Wno-conversion \
+    -Wno-deprecated-declarations \
+    -Wno-parentheses \
+    -Wno-unused-local-typedefs \
+    -Wno-unused-variable \
+
+  cxx_standard := -std=c++11
 endif
 
 treat_warnings_as_errors := -pedantic-errors -Werror
@@ -517,10 +532,13 @@
 # As this is written in 2012, lmi is often built on machines with less
 # RAM per core than gcc wants. Experiments show that these flags cut
 # gcc's RAM appetite by fifty percent, in return for a ten-percent
-# speed penalty that can be overcome by increasing parallelism.
+# speed penalty that can be overcome by increasing parallelism. There
+# seems to be no need for them with gcc-4.x, which uses less RAM.
 
 ifeq (gcc,$(toolset))
-  ggc_flags := --param ggc-min-expand=25 --param ggc-min-heapsize=32768
+  ifeq (3.4.5,$(gcc_version))
+    ggc_flags := --param ggc-min-expand=25 --param ggc-min-heapsize=32768
+  endif
 endif
 
 
################################################################################
@@ -645,14 +663,18 @@
 CXXFLAGS = \
   $(ggc_flags) $(debug_flag) $(optimization_flag) $(gprof_flag) \
 
+LDFLAGS = \
+  $(gprof_flag) \
+  -Wl,-Map,address@hidden \
+
 # Explicitly disable the infelicitous auto-import default. See:
 #   http://article.gmane.org/gmane.comp.gnu.mingw.user/19758
 #     [2006-05-18T11:38:01Z from Earnie Boyd]
+# Do not disable it for MinGW-w64, which seems to require it.
 
-LDFLAGS = \
-  $(gprof_flag) \
-  -Wl,-Map,address@hidden \
-  -Wl,--disable-auto-import \
+ifeq (3.4.5,$(gcc_version))
+  LDFLAGS += -Wl,--disable-auto-import
+endif
 
 ifneq (,$(USE_SO_ATTRIBUTES))
   actually_used_lmi_so_attributes = -DLMI_USE_SO_ATTRIBUTES 
$(lmi_so_attributes)