turn off some warnings for older compilers

diff --git a/Makefile b/Makefile
index 8ab82b9..d62f415 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -168,6 +168,11 @@ endif
 
 ifeq ($(LINUX), 1)
        CXX := /usr/bin/g++
+       GCCVERSION := $(shell $(CXX) -dumpversion | cut -f1,2 -d.)
+       # older versions of gcc are too dumb to build boost with -Wuninitalized
+       ifeq ($(shell echo $(GCCVERSION) \< 4.6 | bc), 1)
+               WARNINGS += -Wno-uninitialized
+       endif
 endif
 
 # OS X:
@@ -175,6 +180,8 @@ endif
 # libstdc++ instead of libc++ for CUDA compatibility on 10.9
 ifeq ($(OSX), 1)
        CXX := /usr/bin/clang++
+       # clang throws this warning for cuda headers
+       WARNINGS += -Wno-unneeded-internal-declaration
        ifneq ($(findstring 10.9, $(shell sw_vers -productVersion)),)
                CXXFLAGS += -stdlib=libstdc++
        endif
@@ -220,6 +227,8 @@ LIBRARY_DIRS += $(BLAS_LIB)
 COMMON_FLAGS += $(foreach includedir,$(INCLUDE_DIRS),-I$(includedir))
 CXXFLAGS += -pthread -fPIC $(COMMON_FLAGS) $(WARNINGS)
 NVCCFLAGS := -ccbin=$(CXX) -Xcompiler -fPIC $(COMMON_FLAGS)
+# mex may invoke an older gcc that is too liberal with -Wuninitalized
+MATLAB_CXXFLAGS := $(CXXFLAGS) -Wno-uninitialized
 LDFLAGS += $(foreach librarydir,$(LIBRARY_DIRS),-L$(librarydir)) \
                $(foreach library,$(LIBRARIES),-l$(library))
 PYTHON_LDFLAGS := $(LDFLAGS) $(foreach library,$(PYTHON_LIBRARIES),-l$(library))
@@ -283,7 +292,7 @@ $(MAT$(PROJECT)_SO): $(MAT$(PROJECT)_SRC) $(STATIC_NAME)
                exit 1; \
        fi
        $(MATLAB_DIR)/bin/mex $(MAT$(PROJECT)_SRC) $(STATIC_NAME) \
-                       CXXFLAGS="\$$CXXFLAGS $(CXXFLAGS)" \
+                       CXXFLAGS="\$$CXXFLAGS $(MATLAB_CXXFLAGS)" \
                        CXXLIBS="\$$CXXLIBS $(LDFLAGS)" -o $@
        @ echo