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# -----------------------------------------------------------------------------
#
# (c) 2009 The University of Glasgow
#
# This file is part of the GHC build system.
#
# To understand how the build system works and how to modify it, see
# http://hackage.haskell.org/trac/ghc/wiki/Building/Architecture
# http://hackage.haskell.org/trac/ghc/wiki/Building/Modifying
#
# -----------------------------------------------------------------------------
# Set compilation flags that additionally depend on a particular way
define distdir-way-opts # args: $1 = dir, $2 = distdir, $3 = way, $4 = stage
# Here is how the command line for a Haskell compilation is constructed.
# $1 is the directory we're building in
# $2 is the distdir (e.g. "dist", "dist-install" etc.)
# $3 is the way (e.g. "v", "p", etc.)
# $4 is the stage ("1", "2", "3")
#
# -----------------------------
# The variables affecting Haskell compilations are as follows, including
# the places in the build system that may define them.
#
# Variable Purpose Defined by
# -------------- ------------------------------ --------------
# $1_PACKAGE Package name for this dir, $1/$2/ghc.mk
# if it is a package
#
# CONF_HC_OPTS GHC options from ./configure mk/config.mk.in
#
# CONF_HC_OPTS_STAGE$4 GHC options from ./configure mk/config.mk.in
# specific to stage $4
#
# WAY_$3_HC_OPTS GHC options specific to way $3 mk/ways.mk
#
# SRC_HC_OPTS source-tree-wide GHC options mk/config.mk.in
# mk/build.mk
# mk/validate.mk
#
# SRC_HC_WARNING_OPTS source-tree-wide GHC warning mk/config.mk.in
# options mk/build.mk
# mk/validate.mk
#
# EXTRA_HC_OPTS for supplying extra options on make EXTRA_HC_OPTS=...
# the command line
#
# $1_HC_OPTS GHC options specific to this $1/$2/package-data.mk
# dir
#
# $1_$2_HC_OPTS GHC options specific to this $1/$2/package-data.mk
# dir and distdir
#
# $1_$2_$3_HC_OPTS GHC options specific to this $1/$2/package-data.mk
# dir, distdir and way
#
# $1_$2_MORE_HC_OPTS GHC options for this dir/distdir ???
#
# $1_$2_EXTRA_HC_OPTS GHC options for this dir/distdir mk/build.mk
#
# $1_$2_HC_PKGCONF -package-db flag if necessary rules/package-config.mk
#
# $1_$2_HS_SRC_DIRS dirs relative to $1 containing $1/$2/package-data.mk
# source files
#
# $1_$2_CPP_OPTS CPP options $1/$2/package-data.mk
#
# <file>_HC_OPTS GHC options for this source $1/$2/ghc.mk
# file (without the extension)
# -----------------------------
# The actual options passed to a Haskell compilation are defined
# below. Note that in general, more specific sets of options come
# after the less specific, so that we can override global options
# on a per-directory or per-way basis, for example.
# $1_$2_$3_MOST_HC_OPTS is also passed to C compilations when we use
# GHC as the C compiler.
$1_$2_$3_MOST_HC_OPTS = \
$$(WAY_$3_HC_OPTS) \
$$(CONF_HC_OPTS) \
$$(SRC_HC_OPTS) \
$$($1_HC_OPTS) \
$$($1_$2_HC_PKGCONF) \
$$(if $$($1_$2_PROG),, \
$$(if $$($1_PACKAGE),-package-name $$($1_PACKAGE)-$$($1_$2_VERSION))) \
$$(if $$($1_PACKAGE),-hide-all-packages) \
-i $$(if $$($1_$2_HS_SRC_DIRS),$$(foreach dir,$$($1_$2_HS_SRC_DIRS),-i$1/$$(dir)),-i$1) \
-i$1/$2/build -i$1/$2/build/autogen \
-I$1/$2/build -I$1/$2/build/autogen \
$$(foreach dir,$$(filter-out /%,$$($1_$2_INCLUDE_DIRS)),-I$1/$$(dir)) \
$$(foreach dir,$$(filter /%,$$($1_$2_INCLUDE_DIRS)),-I$$(dir)) \
$$(foreach inc,$$($1_$2_INCLUDE),-\#include "$$(inc)") \
$$(foreach opt,$$($1_$2_CPP_OPTS),-optP$$(opt)) \
$$(if $$($1_PACKAGE),-optP-include -optP$1/$2/build/autogen/cabal_macros.h) \
$$(foreach pkg,$$($1_$2_DEPS),-package $$(pkg)) \
$$(if $$(findstring YES,$$($1_$2_SplitObjs)),$$(if $$(findstring dyn,$3),,-split-objs),) \
$$(if $$(findstring YES,$$($1_$2_DYNAMIC_TOO)),$$(if $$(findstring v,$3),-dynamic-too)) \
$$($1_$2_HC_OPTS) \
$$(CONF_HC_OPTS_STAGE$4) \
$$($1_$2_MORE_HC_OPTS) \
$$($1_$2_EXTRA_HC_OPTS) \
$$($1_$2_$3_HC_OPTS) \
$$($$(basename $$(subst ./,,$$<))_HC_OPTS) \
$$(SRC_HC_WARNING_OPTS) \
$$(EXTRA_HC_OPTS)
# NB. CONF_HC_OPTS_STAGE$4 has to be late enough to override $1_$2_HC_OPTS, so
# that -O0 is effective (see #5484)
# $1_$2_$3_ALL_HC_OPTS: this is all the options we will pass to GHC
# for a given ($1,$2,$3).
$1_$2_$3_ALL_HC_OPTS = \
$$($1_$2_$3_MOST_HC_OPTS) \
-odir $1/$2/build -hidir $1/$2/build -stubdir $1/$2/build \
-hisuf $$($3_hisuf) -osuf $$($3_osuf) -hcsuf $$($3_hcsuf)
ifeq "$3" "dyn"
ifneq "$4" "0"
ifeq "$$(TargetOS_CPP)" "linux"
$1_$2_$3_GHC_LD_OPTS += \
-fno-use-rpaths \
$$(foreach d,$$($1_$2_TRANSITIVE_DEPS),-optl-Wl$$(comma)-rpath -optl-Wl$$(comma)'$$$$ORIGIN/../$$d')
else ifeq "$$(TargetOS_CPP)" "darwin"
$1_$2_$3_GHC_LD_OPTS += -optl-Wl,-headerpad_max_install_names
endif
endif
endif
$1_$2_$3_ALL_CC_OPTS = \
$$(WAY_$3_CC_OPTS) \
$$($1_$2_DIST_GCC_CC_OPTS) \
$$($1_$2_$3_CC_OPTS) \
$$($$(basename $$<)_CC_OPTS) \
$$(EXTRA_CC_OPTS)
$1_$2_$3_GHC_CC_OPTS = \
$$(addprefix -optc, \
$$(WAY_$3_CC_OPTS) \
$$($1_$2_DIST_CC_OPTS) \
$$($1_$2_$3_CC_OPTS) \
$$($$(basename $$<)_CC_OPTS) \
$$(EXTRA_CC_OPTS)) \
$$($1_$2_$3_MOST_HC_OPTS)
$1_$2_$3_ALL_AS_OPTS = \
$$(CONF_AS_OPTS) \
$$(SRC_AS_OPTS)
$$(WAY_$3_AS_OPTS) \
$$($1_AS_OPTS) \
$$($1_$2_AS_OPTS) \
$$($1_$2_$3_AS_OPTS) \
$$(EXTRA_AS_OPTS)
endef
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