X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=ghc%2Fcompiler%2FMakefile;h=2b5252a5befc8cbd33fa3b9783a268d2333d2e0c;hb=9d7da331989abcd1844e9d03b8d1e4163796fa85;hp=f374aae42f30633a15fdaf0dc354cfe7c7d9eb52;hpb=0df411c8517aca0d4f8fdbb6baae3d10ef797840;p=ghc-hetmet.git diff --git a/ghc/compiler/Makefile b/ghc/compiler/Makefile index f374aae..2b5252a 100644 --- a/ghc/compiler/Makefile +++ b/ghc/compiler/Makefile @@ -86,11 +86,28 @@ WAYS=$(GhcCompilerWays) # - create a link tree. The problem with requiring link trees is that # Windows doesn't support symbolic links. -boot :: +ifeq "$(stage)" "" +stage=1 +endif + +.DUMMY: stage_dir +stage_dirs : $(MKDIRHIER) stage$(stage) for i in $(ALL_DIRS); do \ $(MKDIRHIER) stage$(stage)/$$i; \ done + +ifeq "$(stage) $(ghc_ge_603)" "1 YES" +UsingHsBoot = YES +else +ifneq "$(findstring $(stage), 2 3)" "" +UsingHsBoot = YES +else +UsingHsBoot = NO +endif +endif + +boot :: stage_dirs # On Windows, we can't use symbolic links for the -hi-boot files # because GHC itself is a Mingw program and does not understand # symbolic links. So we have to copy the files instead of link them. @@ -100,6 +117,7 @@ boot :: # PS: 'ln -s foo baz' takes 'foo' relative to the path to 'baz' # whereas 'cp foo baz' treats the two paths independently. # Hence the "../.." in the ln command line +ifeq "$(UsingHsBoot)" "NO" ifeq "$(HOSTPLATFORM)" "i386-unknown-mingw32" for i in */*hi-boot*; do \ cp -u -f $$i stage$(stage)/$$i; \ @@ -109,9 +127,6 @@ else $(LN_S) -f ../../$$i stage$(stage)/$$i || true ; \ done endif - -ifeq "$(stage)" "" -stage=1 endif ifeq "$(stage)" "1" @@ -142,7 +157,14 @@ SRC_HC_OPTS += $(patsubst %, -i$(odir)/%, $(ALL_DIRS)) HS_OBJS = $(patsubst %, $(odir)/%, $(addsuffix .$(way_)o,$(basename $(HS_SRCS)))) C_OBJS = $(patsubst %, $(odir)/%, $(addsuffix .$(way_)o,$(basename $(C_SRCS)))) -CLEAN_FILES += $(odir)/*/*.hi +# Our standard cleaning rules don't know that we're doing our output +# into $(odir), so we have to augment CLEAN_FILES appropriateliy. + +CLEAN_FILES += $(odir)/*/*.hi $(odir)/*/*.hi-boot $(odir)/*/*.o-boot + +ifeq "$(UsingHsBoot)" "YES" +CLEAN_FILES += $(odir)/*/*.hi-boot $(odir)/*/*.o-boot +endif ifeq "$(stage)" "1" mostlyclean clean distclean maintainer-clean :: @@ -159,7 +181,6 @@ endif # be to do `env PATH=$(PATH) make ghc' to minimise the environment. (or the # equivalent of `env' if it doesn't exist locally). # -ifneq "$(BuildPackageGHC)" "YES" ifneq "$(way)" "dll" ifneq "$(TARGETPLATFORM)" "i386-unknown-mingw32" HS_PROG=$(odir)/ghc$(_way)-$(ProjectVersion) @@ -169,7 +190,6 @@ endif else HS_PROG=$(odir)/ghc-$(ProjectVersion) endif -endif # ----------------------------------------------------------------------------- # Create compiler configuration @@ -190,8 +210,6 @@ $(CONFIG_HS) : $(FPTOOLS_TOP)/mk/config.mk Makefile @echo "cProjectPatchLevel = \"$(ProjectPatchLevel)\"" >> $(CONFIG_HS) @echo "cBooterVersion = \"$(GhcVersion)\"" >> $(CONFIG_HS) @echo "cHscIfaceFileVersion = \"$(HscIfaceFileVersion)\"" >> $(CONFIG_HS) - @echo "cHOSTPLATFORM = \"$(HOSTPLATFORM)\"" >> $(CONFIG_HS) - @echo "cTARGETPLATFORM = \"$(TARGETPLATFORM)\"" >> $(CONFIG_HS) @echo "cGhcWithNativeCodeGen = \"$(GhcWithNativeCodeGen)\"" >> $(CONFIG_HS) @echo "cGhcUnregisterised = \"$(GhcUnregisterised)\"" >> $(CONFIG_HS) @echo "cLeadingUnderscore = \"$(LeadingUnderscore)\"" >> $(CONFIG_HS) @@ -226,14 +244,122 @@ endif CLEAN_FILES += $(CONFIG_HS) # ----------------------------------------------------------------------------- +# Create platform includes + +# Here we generate a little header file containing CPP symbols that GHC +# uses to determine which platform it is building on/for. The platforms +# can differ between stage1 and stage2 if we're cross-compiling, so we +# need one of these header files per stage. + +PLATFORM_H = ghc_boot_platform.h + +stage1/$(PLATFORM_H) : stage_dirs $(FPTOOLS_TOP)/mk/config.mk Makefile + @echo "Creating $@..." + @$(RM) $@ + @echo "#ifndef __PLATFORM_H__" >$@ + @echo "#define __PLATFORM_H__" >>$@ + @echo >> $@ + @echo "#define BuildPlatform_TYPE $(BuildPlatform_CPP)" >> $@ + @echo "#define HostPlatform_TYPE $(HostPlatform_CPP)" >> $@ + @echo "#define TargetPlatform_TYPE $(TargetPlatform_CPP)" >> $@ + @echo >> $@ + @echo "#define $(BuildPlatform_CPP)_BUILD 1" >> $@ + @echo "#define $(HostPlatform_CPP)_HOST 1" >> $@ + @echo "#define $(TargetPlatform_CPP)_TARGET 1" >> $@ + @echo >> $@ + @echo "#define $(BuildArch_CPP)_BUILD_ARCH 1" >> $@ + @echo "#define $(HostArch_CPP)_HOST_ARCH 1" >> $@ + @echo "#define $(TargetArch_CPP)_TARGET_ARCH 1" >> $@ + @echo "#define BUILD_ARCH \"$(BuildArch_CPP)\"" >> $@ + @echo "#define HOST_ARCH \"$(HostArch_CPP)\"" >> $@ + @echo "#define TARGET_ARCH \"$(TargetArch_CPP)\"" >> $@ + @echo >> $@ + @echo "#define $(BuildOS_CPP)_BUILD_OS 1" >> $@ + @echo "#define $(HostOS_CPP)_HOST_OS 1" >> $@ + @echo "#define $(TargetOS_CPP)_TARGET_OS 1" >> $@ + @echo "#define BUILD_OS \"$(BuildOS_CPP)\"" >> $@ + @echo "#define HOST_OS \"$(HostOS_CPP)\"" >> $@ + @echo "#define TARGET_OS \"$(TargetOS_CPP)\"" >> $@ +ifeq "$(HostOS_CPP)" "irix" + @echo "#ifndef $(IRIX_MAJOR)_TARGET_OS " >> $@ + @echo "#define $(IRIX_MAJOR)_TARGET_OS 1" >> $@ + @echo "#endif " >> $@ +endif + @echo >> $@ + @echo "#define $(BuildVendor_CPP)_BUILD_VENDOR 1" >> $@ + @echo "#define $(HostVendor_CPP)_HOST_VENDOR 1" >> $@ + @echo "#define $(TargetVendor_CPP)_TARGET_VENDOR 1" >> $@ + @echo "#define BUILD_VENDOR \"$(BuildVendor_CPP)\"" >> $@ + @echo "#define HOST_VENDOR \"$(HostVendor_CPP)\"" >> $@ + @echo "#define TARGET_VENDOR \"$(TargetVendor_CPP)\"" >> $@ + @echo >> $@ + @echo "#endif /* __PLATFORM_H__ */" >> $@ + @echo "Done." + +# For stage2 and above, the BUILD platform is the HOST of stage1, and +# the HOST platform is the TARGET of stage1. The TARGET remains the same +# (stage1 is the cross-compiler, not stage2). +stage2/$(PLATFORM_H) : stage_dirs $(FPTOOLS_TOP)/mk/config.mk Makefile + @echo "Creating $@..." + @$(RM) $@ + @echo "#ifndef __PLATFORM_H__" >$@ + @echo "#define __PLATFORM_H__" >>$@ + @echo >> $@ + @echo "#define BuildPlatform_TYPE $(HostPlatform_CPP)" >> $@ + @echo "#define HostPlatform_TYPE $(TargetPlatform_CPP)" >> $@ + @echo "#define TargetPlatform_TYPE $(TargetPlatform_CPP)" >> $@ + @echo >> $@ + @echo "#define $(HostPlatform_CPP)_BUILD 1" >> $@ + @echo "#define $(TargetPlatform_CPP)_HOST 1" >> $@ + @echo "#define $(TargetPlatform_CPP)_TARGET 1" >> $@ + @echo >> $@ + @echo "#define $(HostArch_CPP)_BUILD_ARCH 1" >> $@ + @echo "#define $(TargetArch_CPP)_HOST_ARCH 1" >> $@ + @echo "#define $(TargetArch_CPP)_TARGET_ARCH 1" >> $@ + @echo "#define BUILD_ARCH \"$(HostArch_CPP)\"" >> $@ + @echo "#define HOST_ARCH \"$(TargetArch_CPP)\"" >> $@ + @echo "#define TARGET_ARCH \"$(TargetArch_CPP)\"" >> $@ + @echo >> $@ + @echo "#define $(HostOS_CPP)_BUILD_OS 1" >> $@ + @echo "#define $(TargetOS_CPP)_HOST_OS 1" >> $@ + @echo "#define $(TargetOS_CPP)_TARGET_OS 1" >> $@ + @echo "#define BUILD_OS \"$(HostOS_CPP)\"" >> $@ + @echo "#define HOST_OS \"$(TargetOS_CPP)\"" >> $@ + @echo "#define TARGET_OS \"$(TargetOS_CPP)\"" >> $@ +ifeq "$(HostOS_CPP)" "irix" + @echo "#ifndef $(IRIX_MAJOR)_TARGET_OS " >> $@ + @echo "#define $(IRIX_MAJOR)_TARGET_OS 1" >> $@ + @echo "#endif " >> $@ +endif + @echo >> $@ + @echo "#define $(HostVendor_CPP)_BUILD_VENDOR 1" >> $@ + @echo "#define $(TargetVendor_CPP)_HOST_VENDOR 1" >> $@ + @echo "#define $(TargetVendor_CPP)_TARGET_VENDOR 1" >> $@ + @echo "#define BUILD_VENDOR \"$(HostVendor_CPP)\"" >> $@ + @echo "#define HOST_VENDOR \"$(TargetVendor_CPP)\"" >> $@ + @echo "#define TARGET_VENDOR \"$(TargetVendor_CPP)\"" >> $@ + @echo >> $@ + @echo "#endif /* __PLATFORM_H__ */" >> $@ + @echo "Done." + +stage3/$(PLATFORM_H) : stage_dirs stage2/$(PLATFORM_H) + $(CP) stage2/$(PLATFORM_H) stage3/$(PLATFORM_H) + +STAGE_PLATFORM_H = stage$(stage)/$(PLATFORM_H) + +boot :: $(STAGE_PLATFORM_H) + +SRC_HC_OPTS += -Istage$(stage) + +# ----------------------------------------------------------------------------- # Set SRCS etc. # # First figure out ALL_DIRS, the source sub-directories ALL_DIRS = \ utils basicTypes types hsSyn prelude rename typecheck deSugar coreSyn \ - specialise simplCore stranal stgSyn simplStg codeGen absCSyn main \ - profiling parser cprAnalysis compMan ndpFlatten cbits iface + specialise simplCore stranal stgSyn simplStg codeGen main \ + profiling parser cprAnalysis ndpFlatten iface cmm # Make sure we include Config.hs even if it doesn't exist yet... ALL_SRCS += $(CONFIG_HS) @@ -260,35 +386,69 @@ endif ifeq "$(BootingFromHc)" "YES" # HC files are always from a self-booted compiler bootstrapped = YES -compiling_with_4xx=NO else ifneq "$(findstring $(stage), 2 3)" "" bootstrapped = YES -compiling_with_4xx = NO else -bootstrapped = $(shell if (test $(GhcCanonVersion) -ge $(ProjectVersionInt) -a $(GhcPatchLevel) -ge $(ProjectPatchLevel)); then echo YES; else echo NO; fi) -compiling_with_4xx = $(shell if (test $(GhcCanonVersion) -lt 500); then echo YES; else echo NO; fi) +bootstrapped = $(shell if (test $(GhcCanonVersion) -eq $(ProjectVersionInt) -a $(GhcPatchLevel) -eq $(ProjectPatchLevel)); then echo YES; else echo NO; fi) endif endif -# Only include GHCi if we're bootstrapping with at least version 411 +# ----------------------------------------------------------------------------- +# Building a compiler with interpreter support +# +# The interpreter, GHCi interface, and Template Haskell are only +# enabled when we are bootstrapping with the same version of GHC, and +# the interpreter is supported on this platform. + ifeq "$(GhcWithInterpreter) $(bootstrapped)" "YES YES" -# Yes, include the interpreter, readline, and Template Haskell extensions + +# Yes, include the interepreter, readline, and Template Haskell extensions SRC_HC_OPTS += -DGHCI -package template-haskell +PKG_DEPENDS += template-haskell + +# Use threaded RTS with GHCi, so threads don't get blocked at the prompt. +# SRC_HC_OPTS += -threaded + +ALL_DIRS += ghci + +# If we are going to use dynamic libraries instead of .o files for ghci, +# we will need to always retain CAFs in the compiler. +# ghci/keepCAFsForGHCi contains a GNU C __attribute__((constructor)) +# function which sets the keepCAFs flag for the RTS before any Haskell +# code is run. +ifeq "$(GhcBuildDylibs)" "YES" +else +EXCLUDED_SRCS += ghci/keepCAFsForGHCi.c +endif + +# Enable readline if either: +# - we're building stage 1 and $(GhcHasReadline)="YES" +# - we're building stage 2/3, and we have built the readline package +# +# But we don't enable readline on Windows, because readline is fairly +# broken there. +# ifneq "$(TARGETPLATFORM)" "i386-unknown-mingw32" -SRC_HC_OPTS += -package unix -ifeq "$(GhcLibsWithReadline)" "YES" -SRC_HC_OPTS += -package readline +ifeq "$(stage)" "1" +ifeq "$(GhcHasReadline)" "YES" +SRC_HC_OPTS += -package readline -DUSE_READLINE +PKG_DEPENDS += readline endif +else +ifeq "$(GhcLibsWithReadline)" "YES" +SRC_HC_OPTS += -package readline -DUSE_READLINE +PKG_DEPENDS += readline endif -ALL_DIRS += ghci +endif # stage=1 +endif # not windows + else + # No interpreter, so exclude Template Haskell modules EXCLUDED_SRCS += deSugar/DsMeta.hs typecheck/TcSplice.lhs hsSyn/Convert.lhs -endif -# There are some C files to include in HS_PROG, so add these to HS_OBJS -HS_OBJS += $(C_OBJS) +endif # bootstrapped with interpreter # ----------------------------------------------- # mkdependC stuff @@ -306,7 +466,7 @@ SRC_MKDEPENDC_OPTS += -I$(GHC_INCLUDE_DIR) # Haskell compilations SRC_HC_OPTS += \ - -cpp -fglasgow-exts -Rghc-timing \ + -cpp -fglasgow-exts -fno-generics -Rghc-timing \ -I. -IcodeGen -InativeGen -Iparser # Omitted: -I$(GHC_INCLUDE_DIR) @@ -324,14 +484,28 @@ SRC_HC_OPTS += \ # which needs it). SRC_MKDEPENDHS_OPTS += -I$(GHC_INCLUDE_DIR) -# When bootstrapped, we don't make use of *any* packages -# (except possibly readline if GHCi is enabled, see above) -ifneq "$(bootstrapped)" "YES" -ifneq "$(mingw32_HOST_OS)" "1" -SRC_HC_OPTS += -package concurrent -package posix -package util +# We need System.Posix (or Posix when ghc < 6.2) +ifneq "$(TARGETPLATFORM)" "i386-unknown-mingw32" +ifeq "$(bootstrapped) $(ghc_ge_601)" "NO NO" +SRC_HC_OPTS += -package posix else -SRC_HC_OPTS += -package concurrent -package util +SRC_HC_OPTS += -package unix +PKG_DEPENDS += unix +endif endif + +# We use the Cabal package in stages 2/3 only; in stage 1 we're using +# the libcompat library which provides the Cabal modules. +ifneq "$(stage)" "1" +SRC_HC_OPTS += -package Cabal +PKG_DEPENDS += Cabal +endif + +ifeq "$(ghc_ge_603)" "YES" +# Ignore lang, to avoid potential clash with the Generics module if +# lang happens to be a dependency of some exposed package in the local +# GHC installation (eg. wxHaskell did this around 6.4). +SRC_HC_OPTS += -ignore-package lang endif SRC_CC_OPTS += -Iparser -I. -O @@ -350,13 +524,20 @@ endif # It's an expensive module to recompile! prelude/PrimOp_HC_OPTS = -H80m -# because the NCG can't handle the 64-bit math in here -prelude/PrelRules_HC_OPTS = -fvia-C main/ParsePkgConf_HC_OPTS += -fno-warn-incomplete-patterns +parser/Parser_HC_OPTS += -fno-warn-incomplete-patterns + +ifeq "$(ghc_ge_603)" "NO" # Use -fvia-C since the NCG can't handle the narrow16Int# (and intToInt16#?) # primops on all platforms. -parser/Parser_HC_OPTS += -fno-warn-incomplete-patterns -fvia-C +parser/Parser_HC_OPTS += -fvia-C +# because the NCG can't handle the 64-bit math in here +prelude/PrelRules_HC_OPTS += -fvia-C +# ByteCodeItbls uses primops that the NCG doesn't support. +ghci/ByteCodeItbls_HC_OPTS += -fvia-C +ghci/ByteCodeLink_HC_OPTS += -fvia-C -monly-3-regs +endif # Careful optimisation of the parser: we don't want to throw everything # at it, because that takes too long and doesn't buy much, but we do want @@ -376,35 +557,28 @@ ifeq "$(bootstrapped)" "YES" utils/Binary_HC_OPTS = -funbox-strict-fields endif -# 4.08.2's NCG can't cope with Binary -ifeq "$(compiling_with_4xx)" "YES" -utils/Binary_HC_OPTS += -fvia-C -endif - -# ByteCodeItbls uses primops that the NCG doesn't support yet. -ghci/ByteCodeItbls_HC_OPTS += -fvia-C -ghci/ByteCodeLink_HC_OPTS += -fvia-C -monly-3-regs - # BinIface and Binary take ages to both compile and run if you don's use -O main/BinIface_HC_OPTS += -O utils/Binary_HC_OPTS += -O utils/FastMutInt_HC_OPTS += -O +# ---- Profiling ---- +#simplCore/Simplify_HC_OPTS = -auto-all +#simplCore/SimplEnv_HC_OPTS = -auto-all +#simplCore/SimplUtils_HC_OPTS = -auto-all + # CSE interacts badly with top-level IORefs (reportedly in DriverState and # DriverMkDepend), causing some of them to be commoned up. We have a fix for # this in 5.00+, but earlier versions of the compiler will need CSE turned off. # To be on the safe side, we disable CSE in *all* modules with top-level IORefs. -compMan/CompManager_HC_OPTS = -fno-cse ghci/InteractiveUI_HC_OPTS = -fno-cse main/CmdLineOpts_HC_OPTS = -fno-cse -main/DriverFlags_HC_OPTS = -fno-cse main/DriverMkDepend_HC_OPTS = -fno-cse main/DriverPipeline_HC_OPTS = -fno-cse -main/DriverState_HC_OPTS = -fno-cse -main/DriverUtil_HC_OPTS = -fno-cse main/Finder_HC_OPTS = -fno-cse main/SysTools_HC_OPTS = -fno-cse +main/StaticFlags_HC_OPTS = -fno-cse # The #include is vital for the via-C route, else the C # compiler doesn't realise that the stcall foreign imports are indeed @@ -413,9 +587,6 @@ ifeq "$(HOSTPLATFORM)" "i386-unknown-mingw32" main/SysTools_HC_OPTS += '-\#include ' '-\#include ' endif -# Required due to use of Concurrent.myThreadId -utils/Panic_HC_OPTS += -fvia-C - parser/Lexer_HC_OPTS += -funbox-strict-fields # ghc_strlen percolates through so many modules that it is easier to get its @@ -483,7 +654,14 @@ primop-usage.hs-incl: prelude/primops.txt #----------------------------------------------------------------------------- # Linking -SRC_LD_OPTS += -no-link-chk +# Include libghccompat in stage1 only. In stage2 onwards, all these +# libraries will be available from the main libraries. + +ifeq "$(stage)" "1" +include $(GHC_LIB_COMPAT_DIR)/compat.mk +endif + +SRC_LD_OPTS += -no-link-chk # ----------------------------------------------------------------------------- # create ghc-inplace, a convenient way to run ghc from the build tree... @@ -556,20 +734,41 @@ endif # typecheck/TcTyDecls_HC_OPTS += -auto-all # typecheck/TcType_HC_OPTS += -auto-all # typecheck/TcUnify_HC_OPTS += -auto-all -# -# absCSyn/PprAbsC_HC_OPTS += -auto-all coreSyn/CorePrep_HC_OPTS += -auto-all +# parser/Parser_HC_OPTS += -fasm #----------------------------------------------------------------------------- -# Building GHC package +# Building the GHC package -ifeq "$(BuildPackageGHC)" "YES" +# The GHC package is made from the stage 2 build. Fortunately the +# package build system framework more or less does the right thing for +# us here. +ifeq "$(stage)" "2" PACKAGE = ghc -STANDALONE_PACKAGE = YES -PACKAGE_DEPS = base haskell98 +HIERARCHICAL_LIB = NO +VERSION = $(ProjectVersion) +PKG_DEPENDS += base haskell98 +PACKAGE_CPP_OPTS += -DPKG_DEPENDS='$(PKG_DEPENDS)' +# disable splitting: it won't really help with GHC, and the specialised +# build system for ghc/compiler isn't set up to handle it. +SplitObjs = NO + +# the package build system likes to set WAYS=$(GhcLibWays), but we don't +# really want to build the whole of GHC multiple ways... if you do, +# set GhcCompilerWays instead. +GhcLibWays = $(GhcCompilerWays) + +# override $(GhcLibHcOpts): we want GhcStage2HcOpts to take precedence +GhcLibHcOpts = + +# override default definition of HS_IFACES so we can add $(odir) +HS_IFACES = $(addsuffix .$(way_)hi,$(basename $(HS_OBJS))) + +# Haddock can't handle recursive modules currently, so we disable it for now. +NO_HADDOCK_DOCS = YES endif #----------------------------------------------------------------------------- @@ -588,6 +787,16 @@ MKDEPENDC_SRCS = parser/Parser.y : parser/Parser.y.pp EXTRA_SRCS += parser/Parser.y + +#----------------------------------------------------------------------------- +# Source files for tags file generation +# +# We want to excluded derived sources, because they won't be in the source +# tree, which is where we are going to move the TAGS file to.a + +TAGS_HS_SRCS = parser/Parser.y.pp $(filter-out $(DERIVED_SRCS) main/Config.hs parser/Parser.y, $(sort $(SRCS))) + + include $(TOP)/mk/target.mk # ----------------------------------------------------------------------------- @@ -598,13 +807,17 @@ MKDEPENDHS_HC_OPTS = $(patsubst -i$(odir)/%, -i%, $(HC_OPTS)) MKDEPENDHS=$(HC) # Must do this *after* including target.mk, because $(HS_SRCS) isn't set yet. -depend :: $(HS_SRCS) $(C_SRCS) +depend :: $(STAGE_PLATFORM_H) $(HS_SRCS) $(C_SRCS) touch .depend-BASE ifneq "$(BootingFromHc)" "YES" $(MKDEPENDHS) -M -optdep-f -optdep.depend-BASE $(foreach way,$(WAYS),-optdep-s -optdep$(way)) $(foreach obj,$(MKDEPENDHS_OBJ_SUFFICES),-osuf $(obj)) $(MKDEPENDHS_OPTS) $(filter-out -split-objs, $(MKDEPENDHS_HC_OPTS)) $(HS_SRCS) endif $(MKDEPENDC) -f .depend-BASE $(MKDEPENDC_OPTS) $(foreach way,$(WAYS),-s $(way)) -- $(CC_OPTS) -- $(C_SRCS) - $(PERL) -pe 'binmode(stdin); binmode(stdout); s@^(\S*\.o)@stage$(stage)/$$1@g; s@(\S*\.hi)@stage$(stage)/$$1@g' <.depend-BASE >.depend-$(stage) + $(PERL) -pe 'binmode(stdin); binmode(stdout); s@^(\S*\.o)@stage$(stage)/$$1@g; s@(\S*\.hi)@stage$(stage)/$$1@g; s@^.*/lib/compat.*$$@@g;' <.depend-BASE >.depend-$(stage) # The binmode stuff tells perl not to add stupid ^M's to the output +# +# The /lib/compat replacement is to workaround a bug in the +# -optdep--exclude-module flag in GHC 6.4. It is not required for any +# other version of GHC, but doesn't do any harm. -include .depend-$(stage)