1 # -----------------------------------------------------------------------------
3 # (c) 2009 The University of Glasgow
5 # This file is part of the GHC build system.
7 # To understand how the build system works and how to modify it, see
8 # http://hackage.haskell.org/trac/ghc/wiki/Building/Architecture
9 # http://hackage.haskell.org/trac/ghc/wiki/Building/Modifying
11 # -----------------------------------------------------------------------------
13 define build-dependencies # args: $1 = dir, $2 = distdir
15 $1_$2_depfile_haskell = $$($1_$2_depfile_base).haskell
16 $1_$2_depfile_c_asm = $$($1_$2_depfile_base).c_asm
18 $1_$2_C_FILES_DEPS = $$(filter-out $$($1_$2_C_FILES_NODEPS),$$($1_$2_C_FILES))
20 $1_$2_MKDEPENDHS_FLAGS = -include-pkg-deps -dep-makefile $$($1_$2_depfile_haskell).tmp $$(foreach way,$$(filter-out v,$$($1_$2_WAYS)),-dep-suffix $$(way))
22 ifneq "$$($1_$2_NO_BUILD_DEPS)" "YES"
24 $$($1_$2_depfile_haskell) : $$($1_$2_HS_SRCS) $$($1_$2_HS_BOOT_SRCS) $$($1_$2_HC_MK_DEPEND_DEP) | $$$$(dir $$$$@)/.
25 "$$(RM)" $$(RM_OPTS) $$@.tmp
27 ifneq "$$($1_$2_HS_SRCS)" ""
28 "$$($1_$2_HC_MK_DEPEND)" -M $$($1_$2_MKDEPENDHS_FLAGS) \
29 $$(filter-out -split-objs, $$($1_$2_v_ALL_HC_OPTS)) \
32 echo "$1_$2_depfile_haskell_EXISTS = YES" >> $$@.tmp
33 ifneq "$$($1_$2_SLASH_MODS)" ""
34 for dir in $$(sort $$(foreach mod,$$($1_$2_SLASH_MODS),$1/$2/build/$$(dir $$(mod)))); do \
35 if test ! -d $$$$dir; then mkdir -p $$$$dir; fi \
40 $$($1_$2_depfile_c_asm) : $$($1_$2_C_FILES_DEPS) $$($1_$2_S_FILES) | $$$$(dir $$$$@)/.
41 "$$(RM)" $$(RM_OPTS) $$@.tmp
43 ifneq "$$(strip $$($1_$2_C_FILES_DEPS)$$($1_$2_S_FILES))" ""
44 # We ought to actually do this for each way in $$($1_$2_WAYS), but then
45 # it takes a long time to make the C deps for the RTS (30 seconds rather
46 # than 3), so instead we just pass the list of ways in and let addCFileDeps
47 # copy the deps for each way on the assumption that they are the same
48 $$(foreach f,$$($1_$2_C_FILES_DEPS) $$($1_$2_S_FILES), \
49 $$(call addCFileDeps,$1,$2,$$($1_$2_depfile_c_asm),$$f,$$($1_$2_WAYS)))
50 "$$(RM)" $$(RM_OPTS) $$@.bit
52 echo "$1_$2_depfile_c_asm_EXISTS = YES" >> $$@.tmp
55 endif # $1_$2_NO_BUILD_DEPS
57 # Note sed magic above: mkdependC can't do -odir stuff, so we have to
58 # munge the dependencies it generates to refer to the correct targets.
60 # Seems as good a place as any to attach the unlit dependency
61 $$($1_$2_depfile_haskell) : $$(UNLIT)
63 ifneq "$$(NO_INCLUDE_DEPS)" "YES"
64 include $$($1_$2_depfile_haskell)
65 include $$($1_$2_depfile_c_asm)
67 ifeq "$$(DEBUG)" "YES"
68 $$(warning not building dependencies in $1)
74 # This comment is outside the "define addCFileDeps" as that definition
75 # is a list of command lines, and if it is inside it then we pass this
76 # comment to the shell every time we call the definition.
83 # The formatting of this definition (e.g. the blank line above) is
84 # important, in order to get make to generate the right makefile code.
86 # "1s|\.o|\.$($w_osuf)|"
87 # We will have dependencies for .o files, so we need to fix them up
88 # for the right object suffix for the way we're doing
90 # We always get deps for just foo.o when the file we're making is
91 # a/b/c/foo.o, so we need to prepend the directory of the source file
92 # "1s|$1/|$1/$2/build/|"
93 # Well, almost. We actually need to insert e.g. "dist/build" in the
94 # middle of that directory
95 # "1s|$2/build/$2/build|$2/build|g"
96 # But some source files, e.g. sm/Evac_thr.c, are also inside the
97 # "dist/build" directory, so now we've just made
98 # "dist/build/dist/build", so we need to remove the duplication
100 # "s|$(TOP)/||g$(CASE_INSENSITIVE_SED)"
101 # Finally, when making deps for packages like ghc stage2, we have
102 # some include paths for packages registered in the in-tree package
103 # database. These include paths are full (i.e. not relative) paths,
104 # which means that the "cpp -MM" output uses full paths in some cases.
105 # This causes 2 problems:
106 # * they don't match up with the rules to rebuild the files, where
108 # * on Windows, make interprets the colon in c:/foo/bar.h as make
110 # So we sed off $(TOP). Unfortunately, on Windows, the case for the
111 # drive letter is sometimes different in what $(TOP) starts with, and
112 # what the path in the package database starts with. We therefore
113 # need to do the substitution case-insensitively on Windows. But
114 # the s///i modifier isn't portable, so we set CASE_INSENSITIVE_SED
115 # to "i" on Windows and "" on any other platform.
118 $(CPP) $($1_$2_MKDEPENDC_OPTS) $($1_$2_v_ALL_CC_OPTS) $($(basename $4)_CC_OPTS) -MM $4 -MF $3.bit
119 $(foreach w,$5,sed -e "1s|\.o|\.$($w_osuf)|" -e "1s|^|$(dir $4)|" -e "1s|$1/|$1/$2/build/|" -e "1s|$2/build/$2/build|$2/build|g" -e "s|$(TOP)/||g$(CASE_INSENSITIVE_SED)" $3.bit >> $3.tmp &&) true
122 ifeq "$(Windows)" "YES"
123 CASE_INSENSITIVE_SED = i
125 CASE_INSENSITIVE_SED =