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Patch rtems-rc-4.5-10-cvs.diff from Ralf Corsepius <corsepiu@faw.uni-ulm.de>.

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Ralf's description of the patch follows:

  Now that make VARIANT=xxx has prooven not to be simple enough, I made up
  my mind to change again the internals of the mechanism being used to
  handle variants:

  With the patch below, I introduce the indirection step I had mentioned
  in one of my recent mails to translate settings of VARIANT.

  The trick is to use the contents of VARIANT as keyword to lookup another
  internal keyword (VARIANT_V), which then is used as keyword to lookup
  values for setting ARCH, LIB_VARIANT, LIBSUFFIX_VA and AM_CFLAGS from
  ARCH_$(VARIANT_V)_V etc. (cf automake/local.am).

  This means, at first to translate
    VARIANT=[optimize|OPTIMIZE] into VARIANT_V=OPTIMIZE
    VARIANT=[debug|DEBUG] into VARIANT_V=DEBUG
    VARIANT=[profile|PROFILE] into VARIANT_V=PROFILE
    VARIANT=<anything> into VARIANT_V=<anything>

  => perform keyword conversion to uppercase and reduction from 6 to 3+1
    internal keywords.

  $(VARIANT_V) then is used to lookup make variables from other tables
  (eg. CFLAGS_*_V).  Eg. ARCH is set up this way:

    ARCH_OPTIMIZE_V = o-optimize
    ARCH_DEBUG_V = o-debug
    ARCH_PROFILE_V = o-profile
    ARCH__V = $(ARCH_OPTIMIZE_V)
    ARCH = $(ARCH_$(VARIANT_V)_V)

  Note the ARCH__V variable. When VARIANT=<anything> is passed to make,
  VARIANT_V=<anything> will be set, resulting into ARCH =
  $(ARCH_$(<anything>)_V) = $(ARCH__V) = $(ARCH_OPTIMIZE_V), ie. falling
  back to OPTIMIZE.

  => o- or o-<anything> should never popup anymore.
This commit is contained in:
Joel Sherrill
2000-04-05 12:51:51 +00:00
parent a899433e54
commit 12edad69e3
2 changed files with 34 additions and 18 deletions
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39
automake/local.am
View File

@@ -5,14 +5,43 @@
## Once automake is fully integrated these make targets
## and this file will probably be removed
## translate VARIANT into VARIANT_V
VARIANT = OPTIMIZE
VARIANT_OPTIMIZE_V = optimize
VARIANT_DEBUG_V = debug
VARIANT_PROFILE_V = profile
VARIANT_OPTIMIZE_V = OPTIMIZE
VARIANT_DEBUG_V = DEBUG
VARIANT_PROFILE_V = PROFILE
VARIANT_optimize_V = OPTIMIZE
VARIANT_debug_V = DEBUG
VARIANT_profile_V = PROFILE
ARCH = o-$(VARIANT_$(VARIANT)_V)
AM_CFLAGS += $(CFLAGS_$(VARIANT)_V)
VARIANT_V = $(VARIANT_$(VARIANT)_V)
## Setup the variant build subdirectory
ARCH_OPTIMIZE_V = o-optimize
ARCH_DEBUG_V = o-debug
ARCH_PROFILE_V = o-profile
ARCH__V = $(ARCH_OPTIMIZE_V)
ARCH = $(ARCH_$(VARIANT_V)_V)
## Setup the library suffix
LIBSUFFIX_OPTIMIZE_V =
LIBSUFFIX_DEBUG_V = _g
LIBSUFFIX_PROFILE_V = _p
LIBSUFFIX__V = $(LIBSUFFIX_OPTIMIZE_V)
LIB_VARIANT = $(LIBSUFFIX_$(VARIANT_V)_V)
LIBSUFFIX_VA = $(LIB_VARIANT).a
## These are supposed to be set in make/custom/<bsp>.cfg
## CFLAGS_OPTIMIZE_V =
## CFLAGS_DEBUG_V =
## CFLAGS_PROFILE_V =
CFLAGS__V = $(CFLAGS_OPTIMIZE_V)
AM_CFLAGS += $(CFLAGS_$(VARIANT_V)_V)
debug:
@echo