Omit unnecessary linker flags
[ghc.git] / rules / build-package.mk
index 8e81389..9599c57 100644 (file)
@@ -5,8 +5,8 @@
 # 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
+#      http://ghc.haskell.org/trac/ghc/wiki/Building/Architecture
+#      http://ghc.haskell.org/trac/ghc/wiki/Building/Modifying
 #
 # -----------------------------------------------------------------------------
 
@@ -29,6 +29,8 @@
 # libraries/base_dist_LD_OPTS = -package ghc-prim-0.1.0.0
 
 define build-package
+$(call trace, build-package($1,$2,$3))
+$(call profStart, build-package($1,$2,$3))
 # $1 = dir
 # $2 = distdir
 # $3 = GHC stage to use (0 == bootstrapping compiler)
@@ -37,94 +39,68 @@ ifeq "$$(findstring $3,0 1 2)" ""
 $$(error $1/$2: stage argument to build-package should be 0, 1, or 2)
 endif
 
-# We don't install things compiled by stage 0, so no need to put them
-# in the bindist.
-ifneq "$$(BINDIST) $3" "YES 0"
-
-$(call all-target,$1,all_$1_$2)
 $(call clean-target,$1,$2,$1/$2)
-# This give us things like
-#     all_libraries: all_libraries/base_dist-install
-ifneq "$$($1_$2_GROUP)" ""
-all_$$($1_$2_GROUP): all_$1_$2
-endif
-
-ifneq "$$(CHECKED_$1)" "YES"
-CHECKED_$1 = YES
-check_packages: check_$1
-.PHONY: check_$1
-check_$1: $$(GHC_CABAL_INPLACE)
-       $$(GHC_CABAL_INPLACE) check $1
-endif
 
 distclean : clean_$1_$2_config
 
-maintainer-clean : distclean
-
 .PHONY: clean_$1_$2_config
 clean_$1_$2_config:
-       "$$(RM)" $$(RM_OPTS) $1/config.log $1/config.status $1/include/Hs*Config.h
-       "$$(RM)" $$(RM_OPTS) -r $1/autom4te.cache
-
-# --- CONFIGURATION
-
-$1_$2_USE_BOOT_LIBS = YES
-$(call package-config,$1,$2,$3)
-
-ifneq "$$(NO_INCLUDE_PKGDATA)" "YES"
-include $1/$2/package-data.mk
-endif
-
-ifeq "$$($1_$2_DISABLE)" "YES"
+       $$(call removeFiles,$1/config.log $1/config.status $(wildcard $1/include/Hs*Config.h))
+       $$(call removeTrees,$1/autom4te.cache)
 
-ifeq "$$(DEBUG)" "YES"
-$$(warning $1/$2 disabled)
+ifneq "$$($1_$2_NOT_NEEDED)" "YES"
+$$(eval $$(call build-package-helper,$1,$2,$3))
 endif
+$(call profEnd, build-package($1,$2,$3))
+endef
 
-# A package is disabled when we want to bring its package-data.mk file
-# up-to-date first, or due to other build dependencies.
 
-$(call all-target,$1_$2,$1/$2/package-data.mk)
+define build-package-helper
+# $1 = dir
+# $2 = distdir
+# $3 = GHC stage to use (0 == bootstrapping compiler)
 
-ifneq "$$(BINDIST)" "YES"
-# We have a rule for package-data.mk only when the package is
-# disabled, because we want the build to fail if we haven't run phase 0.
-$(call build-package-data,$1,$2)
-endif
+# --- CONFIGURATION
 
-else
+$(call package-config,$1,$2,$3)
 
-ifneq "$$(NO_INCLUDE_PKGDATA)" "YES"
-ifeq "$$($1_$2_VERSION)" ""
-$$(error phase ordering error: $1/$2 is enabled, but $1/$2/package-data.mk does not exist)
+ifeq "$3" "1"
+$$($1_PACKAGE)_INSTALL_INFO = $1_$2
 endif
-endif
-
-# Sometimes we need to modify the automatically-generated package-data.mk
-# bindings in a special way for the GHC build system, so allow that here:
-$($1_PACKAGE_MAGIC)
 
 # Bootstrapping libs are only built one way
 ifeq "$3" "0"
 $1_$2_WAYS = v
 else
-$1_$2_WAYS = $$(GhcLibWays)
+$1_$2_WAYS = $$(filter-out $$($1_$2_EXCLUDED_WAYS),$$(GhcLibWays))
 endif
 
-$(call hs-sources,$1,$2)
-$(call c-sources,$1,$2)
-$(call includes-sources,$1,$2)
-
-# --- DEPENDENCIES
+$1_$2_DYNAMIC_TOO = NO
+ifneq "$$(DYNAMIC_TOO)" "NO"
+ifneq "$$(filter v,$$($1_$2_WAYS))" ""
+ifneq "$$(filter dyn,$$($1_$2_WAYS))" ""
+$1_$2_DYNAMIC_TOO = YES
+endif
+endif
+endif
 
 # We must use a different dependency file if $(GhcLibWays) changes, so
 # encode the ways into the name of the file.
 $1_$2_WAYS_DASHED = $$(subst $$(space),,$$(patsubst %,-%,$$(strip $$($1_$2_WAYS))))
-$1_$2_depfile = $1/$2/build/.depend$$($1_$2_WAYS_DASHED)
+$1_$2_depfile_base = $1/$2/build/.depend$$($1_$2_WAYS_DASHED)
 
-$(call build-dependencies,$1,$2)
-
-# --- BUILDING
+$(call build-package-data,$1,$2,$3)
+ifneq "$$(NO_INCLUDE_PKGDATA)" "YES"
+ifeq "$3" "0"
+include $1/$2/package-data.mk
+else ifeq "$(phase)" "final"
+include $1/$2/package-data.mk
+endif
+# Each Haskell compilation in this package will depend on the
+# package-data.mk file because e.g. if the version of the package
+# changes we need to recompile everything in it.
+$1_$2_PKGDATA_DEP = $1/$2/package-data.mk
+endif
 
 # We don't bother splitting the bootstrap packages (built with stage 0)
 ifeq "$$($1_$2_SplitObjs)" ""
@@ -134,27 +110,66 @@ else
 $1_$2_SplitObjs = NO
 endif
 endif
+# Disable split sections when building with stage0, it won't be supported yet
+# and it's probably not very relevant anyway (smaller stage1 ghc?).
+ifeq "$$($1_$2_SplitSections)" ""
+ifeq "$3" "1"
+$1_$2_SplitSections = $(SplitSections)
+else
+$1_$2_SplitSections = NO
+endif
+endif
 
+$(call hs-sources,$1,$2)
+$(call c-sources,$1,$2)
+$(call includes-sources,$1,$2)
 $(call distdir-opts,$1,$2,$3)
 
-# C and S files are possibly built the "dyn" way.
-ifeq "$(BuildSharedLibs)" "YES"
-$(call c-objs,$1,$2,dyn)
-$(call c-suffix-rules,$1,$2,dyn,YES)
-endif
+$(call dependencies,$1,$2,$3)
 
 # Now generate all the build rules for each way in this directory:
 $$(foreach way,$$($1_$2_WAYS),$$(eval \
     $$(call c-objs,$1,$2,$$(way)) \
-       $$(call c-suffix-rules,$1,$2,$$(way),YES) \
+    $$(call c-suffix-rules,$1,$2,$$(way),YES) \
     $$(call cmm-objs,$1,$2,$$(way)) \
     $$(call cmm-suffix-rules,$1,$2,$$(way)) \
     $$(call build-package-way,$1,$2,$$(way),$3) \
   ))
 
-$(call haddock,$1,$2)
+# Programs will need to depend on either the vanilla lib (if -static
+# is the default) or the dyn lib (if -dynamic is the default). We
+# conservatively make them depend on both, to keep things simple.
+# If dyn libs are not being built then $$($1_$2_dyn_LIB) will just
+# expand to the empty string, and be ignored.
+$1_$2_PROGRAM_DEP_LIB = $$($1_$2_v_LIB) $$($1_$2_dyn_LIB)
+$$($1_$2_COMPONENT_ID)_$2_PROGRAM_DEP_LIB = $$($1_$2_PROGRAM_DEP_LIB)
+
+# See Note [inconsistent distdirs] in rules/build-package-way.mk.
+ifeq "$$($1_PACKAGE) $2" "ghc stage1"
+$$($1_$2_COMPONENT_ID)_dist-boot_PROGRAM_DEP_LIB = $$($1_$2_PROGRAM_DEP_LIB)
+endif
+ifeq "$$($1_PACKAGE) $2" "ghc stage2"
+$$($1_$2_COMPONENT_ID)_dist-install_PROGRAM_DEP_LIB = $$($1_$2_PROGRAM_DEP_LIB)
+endif
+
+# C and S files are possibly built the "dyn" way.
+ifeq "$$(BuildSharedLibs)" "YES"
+$(call c-objs,$1,$2,dyn)
+$(call c-suffix-rules,$1,$2,dyn,YES)
+endif
+$$(foreach dir,$$($1_$2_HS_SRC_DIRS),\
+  $$(eval $$(call hs-suffix-rules-srcdir,$1,$2,$$(dir))))
+
+$(call all-target,$1,all_$1_$2)
+# This give us things like
+#     all_libraries: all_libraries/base_dist-install
+ifneq "$$($1_$2_GROUP)" ""
+all_$$($1_$2_GROUP): all_$1_$2
+endif
 
-endif # package-data.mk exists
+ifneq "$3" "0"
+$(call haddock,$1,$2)
+endif
 
 # Don't put bootstrapping packages in the bindist
 ifneq "$3" "0"
@@ -162,7 +177,5 @@ BINDIST_EXTRAS += $1/*.cabal $$(wildcard $1/*.buildinfo) $1/$2/setup-config $1/L
 BINDIST_EXTRAS += $$($1_$2_INSTALL_INCLUDES_SRCS)
 endif
 
-endif
-
 endef