Merge branch 'master' of git://git.denx.de/u-boot-blackfin

[people/ms/u-boot.git] / config.mk

diff --git a/config.mk b/config.mk
index 7bc7315d5d28e62185faa5a4d441e144b363de4b..cb1c4af977203cca95aa39aa58a1864648f023dc 100644 (file)
--- a/config.mk
+++ b/config.mk
@@ -46,13 +46,41 @@ PLATFORM_LDFLAGS =
 
 #########################################################################
 
+HOSTCFLAGS     = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer \
+                 $(HOSTCPPFLAGS)
+HOSTSTRIP      = strip
+
+#
+# Mac OS X / Darwin's C preprocessor is Apple specific.  It
+# generates numerous errors and warnings.  We want to bypass it
+# and use GNU C's cpp.  To do this we pass the -traditional-cpp
+# option to the compiler.  Note that the -traditional-cpp flag
+# DOES NOT have the same semantics as GNU C's flag, all it does
+# is invoke the GNU preprocessor in stock ANSI/ISO C fashion.
+#
+# Apple's linker is similar, thanks to the new 2 stage linking
+# multiple symbol definitions are treated as errors, hence the
+# -multiply_defined suppress option to turn off this error.
+#
+
 ifeq ($(HOSTOS),darwin)
 HOSTCC         = cc
+HOSTCFLAGS     += -traditional-cpp
+HOSTLDFLAGS    += -multiply_defined suppress
 else
 HOSTCC         = gcc
 endif
-HOSTCFLAGS     = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer
-HOSTSTRIP      = strip
+
+ifeq ($(HOSTOS),cygwin)
+HOSTCFLAGS     += -ansi
+endif
+
+# We build some files with extra pedantic flags to try to minimize things
+# that won't build on some weird host compiler -- though there are lots of
+# exceptions for files that aren't complaint.
+
+HOSTCFLAGS_NOPED = $(filter-out -pedantic,$(HOSTCFLAGS))
+HOSTCFLAGS     += -pedantic
 
 #########################################################################
 #
@@ -128,6 +156,10 @@ ifneq ($(TEXT_BASE),)
 CPPFLAGS += -DTEXT_BASE=$(TEXT_BASE)
 endif
 
+ifneq ($(RESET_VECTOR_ADDRESS),)
+CPPFLAGS += -DRESET_VECTOR_ADDRESS=$(RESET_VECTOR_ADDRESS)
+endif
+
 ifneq ($(OBJTREE),$(SRCTREE))
 CPPFLAGS += -I$(OBJTREE)/include2 -I$(OBJTREE)/include
 endif
@@ -171,16 +203,6 @@ ifneq ($(TEXT_BASE),)
 LDFLAGS += -Ttext $(TEXT_BASE)
 endif
 
-# Special flags for CPP when processing the linker script
-# Linker versions prior to 2.16 don't understand the builting
-# functions SORT_BY_ALIGNMENT() and SORT_BY_NAME(), so disable these
-ifeq ($(shell $(LD) -v | \
-       sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\) .*/[ \1 -lt 2 ] || [ \2 -lt 16 ] \&\& echo old_ld/p' | \
-       sh),old_ld)
-LDPPFLAGS += -D'SORT_BY_ALIGNMENT(x)=x' -D'SORT_BY_NAME(x)=x'
-endif
-
-
 # Location of a usable BFD library, where we define "usable" as
 # "built for ${HOST}, supports ${TARGET}".  Sensible values are
 # - When cross-compiling: the root of the cross-environment
@@ -206,7 +228,7 @@ endif
 
 #########################################################################
 
-export HOSTCC HOSTCFLAGS CROSS_COMPILE \
+export HOSTCC HOSTCFLAGS HOSTLDFLAGS PEDCFLAGS HOSTSTRIP CROSS_COMPILE \
        AS LD CC CPP AR NM STRIP OBJCOPY OBJDUMP MAKE
 export TEXT_BASE PLATFORM_CPPFLAGS PLATFORM_RELFLAGS CPPFLAGS CFLAGS AFLAGS