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Document the building macros.

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Richard Levitte 2006-02-10 08:48:43 +00:00
parent f5ce5e1465
commit b480283c56
1 changed files with 13 additions and 0 deletions
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Makefile.org
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@ -197,6 +197,19 @@ BUILDENV= PLATFORM='${PLATFORM}' PROCESSOR='${PROCESSOR}' \
# MAKEOVERRIDES= effectively "equalizes" GNU-ish and SysV-ish make flavors,
# which in turn eliminates ambiguities in variable treatment with -e.
# BUILD_CMD is a generic macro to build a given target in a given
# subdirectory. The target must be given through the shell variable
# `target' and the subdirectory to build in must be given through `dir'.
# This macro shouldn't be used directly, use RECURSIVE_BUILD_CMD or
# BUILD_ONE_CMD instead.
#
# BUILD_ONE_CMD is a macro to build a given target in a given
# subdirectory if that subdirectory is part of $(DIRS). It requires
# exactly the same shell variables as BUILD_CMD.
#
# RECURSIVE_BUILD_CMD is a macro to build a given target in all
# subdirectories defined in $(DIRS). It requires that the target
# is given through the shell variable `target'.
BUILD_CMD= if [ -d "$$dir" ]; then \
( cd $$dir && echo "making $$target in $$dir..." && \
$(CLEARENV) && $(MAKE) -e $(BUILDENV) TOP=.. DIR=$$dir $$target \