auto merge of #9990 : Heather/rust/configure-changes, r=brson

Re-created: #9760

Now, without adding `pc-linux-gnu` platform

Re-created: #9565

t will be useful for unix systems, some package managers and external tools that is passing / maybe looking for GNU configure syntax options.

One of related bugs: #5138

Also that could be useful in future if project will really install man pages / other stuff using those variables.

Makefile.in

@@ -70,22 +70,22 @@ include config.mk
 ALL_OBJ_FILES :=
 
 MKFILE_DEPS := config.stamp $(call rwildcard,$(CFG_SRC_DIR)mk/,*)
-NON_BUILD_HOST_TRIPLES = $(filter-out $(CFG_BUILD_TRIPLE),$(CFG_HOST_TRIPLES))
-NON_BUILD_TARGET_TRIPLES = $(filter-out $(CFG_BUILD_TRIPLE),$(CFG_TARGET_TRIPLES))
+NON_BUILD_HOST = $(filter-out $(CFG_BUILD),$(CFG_HOST))
+NON_BUILD_TARGET = $(filter-out $(CFG_BUILD),$(CFG_TARGET))
 
 ifneq ($(MAKE_RESTARTS),)
 CFG_INFO := $(info cfg: make restarts: $(MAKE_RESTARTS))
 endif
 
-CFG_INFO := $(info cfg: build triple $(CFG_BUILD_TRIPLE))
-CFG_INFO := $(info cfg: host triples $(CFG_HOST_TRIPLES))
-CFG_INFO := $(info cfg: target triples $(CFG_TARGET_TRIPLES))
+CFG_INFO := $(info cfg: build triple $(CFG_BUILD))
+CFG_INFO := $(info cfg: host triples $(CFG_HOST))
+CFG_INFO := $(info cfg: target triples $(CFG_TARGET))
 
-ifneq ($(wildcard $(NON_BUILD_HOST_TRIPLES)),)
-CFG_INFO := $(info cfg: non-build host triples $(NON_BUILD_HOST_TRIPLES))
+ifneq ($(wildcard $(NON_BUILD_HOST)),)
+CFG_INFO := $(info cfg: non-build host triples $(NON_BUILD_HOST))
 endif
-ifneq ($(wildcard $(NON_BUILD_TARGET_TRIPLES)),)
-CFG_INFO := $(info cfg: non-build target triples $(NON_BUILD_TARGET_TRIPLES))
+ifneq ($(wildcard $(NON_BUILD_TARGET)),)
+CFG_INFO := $(info cfg: non-build target triples $(NON_BUILD_TARGET))
 endif
 
 CFG_RUSTC_FLAGS := $(RUSTFLAGS)
@@ -189,7 +189,7 @@ S := $(CFG_SRC_DIR)
 define DEF_X
 X_$(1) := $(CFG_EXE_SUFFIX_$(1))
 endef
-$(foreach target,$(CFG_TARGET_TRIPLES),\
+$(foreach target,$(CFG_TARGET),\
   $(eval $(call DEF_X,$(target))))
 
 # Look in doc and src dirs.
@@ -270,7 +270,7 @@ define LIST_ALL_OLD_GLOB_MATCHES_EXCEPT
 endef
 endif
 
-$(foreach target,$(CFG_TARGET_TRIPLES),\
+$(foreach target,$(CFG_TARGET),\
   $(eval $(call DEF_LIBS,$(target))))
 
 ######################################################################
@@ -336,7 +336,7 @@ LLC_$(1)=$$(CFG_LLVM_INST_DIR_$(1))/bin/llc$$(X_$(1))
 
 endef
 
-$(foreach host,$(CFG_HOST_TRIPLES), \
+$(foreach host,$(CFG_HOST), \
  $(eval $(call DEF_LLVM_VARS,$(host))))
 
 ######################################################################
@@ -350,7 +350,7 @@ export CFG_SRC_DIR
 export CFG_BUILD_DIR
 export CFG_VERSION
 export CFG_VERSION_WIN
-export CFG_BUILD_TRIPLE
+export CFG_BUILD
 export CFG_LLVM_ROOT
 export CFG_ENABLE_MINGW_CROSS
 export CFG_PREFIX
@@ -465,7 +465,7 @@ CFGFLAG$(1)_T_$(2)_H_$(3) = stage$(1)
 # if you're building a cross config, the host->* parts are
 # effectively stage1, since it uses the just-built stage0.
 ifeq ($(1),0)
-ifneq ($(strip $(CFG_BUILD_TRIPLE)),$(strip $(3)))
+ifneq ($(strip $(CFG_BUILD)),$(strip $(3)))
 CFGFLAG$(1)_T_$(2)_H_$(3) = stage1
 endif
 endif
@@ -488,8 +488,8 @@ PERF_STAGE$(1)_T_$(2)_H_$(3) := 				\
 
 endef
 
-$(foreach build,$(CFG_HOST_TRIPLES), \
- $(eval $(foreach target,$(CFG_TARGET_TRIPLES), \
+$(foreach build,$(CFG_HOST), \
+ $(eval $(foreach target,$(CFG_TARGET), \
   $(eval $(foreach stage,$(STAGES), \
    $(eval $(call SREQ,$(stage),$(target),$(build))))))))
 
@@ -504,34 +504,34 @@ define DEF_RUSTC_STAGE_TARGET
 # $(2) == stage
 
 rustc-stage$(2)-H-$(1):							\
-	$$(foreach target,$$(CFG_TARGET_TRIPLES),	\
+	$$(foreach target,$$(CFG_TARGET),	\
 		$$(SREQ$(2)_T_$$(target)_H_$(1)))
 
 endef
 
-$(foreach host,$(CFG_HOST_TRIPLES),							\
+$(foreach host,$(CFG_HOST),							\
  $(eval $(foreach stage,1 2 3,									\
   $(eval $(call DEF_RUSTC_STAGE_TARGET,$(host),$(stage))))))
 
-rustc-stage1: rustc-stage1-H-$(CFG_BUILD_TRIPLE)
-rustc-stage2: rustc-stage2-H-$(CFG_BUILD_TRIPLE)
-rustc-stage3: rustc-stage3-H-$(CFG_BUILD_TRIPLE)
+rustc-stage1: rustc-stage1-H-$(CFG_BUILD)
+rustc-stage2: rustc-stage2-H-$(CFG_BUILD)
+rustc-stage3: rustc-stage3-H-$(CFG_BUILD)
 
 define DEF_RUSTC_TARGET
 # $(1) == architecture
 
 rustc-H-$(1): rustc-stage2-H-$(1)
 endef
 
-$(foreach host,$(CFG_TARGET_TRIPLES),			\
+$(foreach host,$(CFG_TARGET),			\
  $(eval $(call DEF_RUSTC_TARGET,$(host))))
 
-rustc-stage1: rustc-stage1-H-$(CFG_BUILD_TRIPLE)
-rustc-stage2: rustc-stage2-H-$(CFG_BUILD_TRIPLE)
-rustc-stage3: rustc-stage3-H-$(CFG_BUILD_TRIPLE)
-rustc: rustc-H-$(CFG_BUILD_TRIPLE)
+rustc-stage1: rustc-stage1-H-$(CFG_BUILD)
+rustc-stage2: rustc-stage2-H-$(CFG_BUILD)
+rustc-stage3: rustc-stage3-H-$(CFG_BUILD)
+rustc: rustc-H-$(CFG_BUILD)
 
-rustc-H-all: $(foreach host,$(CFG_HOST_TRIPLES),rustc-H-$(host))
+rustc-H-all: $(foreach host,$(CFG_HOST),rustc-H-$(host))
 
 ######################################################################
 # Entrypoint rule
@@ -547,12 +547,12 @@ CFG_INFO := $(info cfg: *** stage2 and later will not be built ***)
 CFG_INFO := $(info cfg:)
 
 #XXX This is surely busted
-all: $(SREQ1$(CFG_BUILD_TRIPLE)) $(GENERATED) docs
+all: $(SREQ1$(CFG_BUILD)) $(GENERATED) docs
 
 else
 
 define ALL_TARGET_N
-ifneq ($$(findstring $(1),$$(CFG_HOST_TRIPLES)),)
+ifneq ($$(findstring $(1),$$(CFG_HOST)),)
 # This is a host
 all-target-$(1)-host-$(2): $$(CSREQ2_T_$(1)_H_$(2))
 else
@@ -561,12 +561,12 @@ all-target-$(1)-host-$(2): $$(SREQ2_T_$(1)_H_$(2))
 endif
 endef
 
-$(foreach target,$(CFG_TARGET_TRIPLES), \
- $(foreach host,$(CFG_HOST_TRIPLES), \
+$(foreach target,$(CFG_TARGET), \
+ $(foreach host,$(CFG_HOST), \
  $(eval $(call ALL_TARGET_N,$(target),$(host)))))
 
-ALL_TARGET_RULES = $(foreach target,$(CFG_TARGET_TRIPLES), \
-	$(foreach host,$(CFG_HOST_TRIPLES), \
+ALL_TARGET_RULES = $(foreach target,$(CFG_TARGET), \
+	$(foreach host,$(CFG_HOST), \
  all-target-$(target)-host-$(host)))
 
 all: $(ALL_TARGET_RULES) $(GENERATED) docs

configure

@@ -336,7 +336,7 @@ then
 fi
 
 
-DEFAULT_BUILD_TRIPLE="${CFG_CPUTYPE}-${CFG_OSTYPE}"
+DEFAULT_BUILD="${CFG_CPUTYPE}-${CFG_OSTYPE}"
 
 CFG_SRC_DIR="$(cd $(dirname $0) && pwd)/"
 CFG_BUILD_DIR="$(pwd)/"
@@ -385,12 +385,26 @@ opt pax-flags 0 "apply PaX flags to rustc binaries (required for GRSecurity/PaX-
 valopt prefix "/usr/local" "set installation prefix"
 valopt local-rust-root "/usr/local" "set prefix for local rust binary"
 valopt llvm-root "" "set LLVM root"
-valopt build-triple "${DEFAULT_BUILD_TRIPLE}" "LLVM build triple"
-valopt host-triples "${CFG_BUILD_TRIPLE}" "LLVM host triples"
-valopt target-triples "${CFG_HOST_TRIPLES}" "LLVM target triples"
 valopt android-cross-path "/opt/ndk_standalone" "Android NDK standalone path"
 valopt mingw32-cross-path "" "MinGW32 cross compiler path"
 
+valopt build "${DEFAULT_BUILD}" "GNUs ./configure syntax LLVM build triple"
+valopt host "${CFG_BUILD}" "GNUs ./configure syntax LLVM host triples"
+valopt target "${CFG_HOST}" "GNUs ./configure syntax LLVM target triples"
+
+valopt localstatedir "/var/lib" "local state directory"
+valopt sysconfdir "/etc" "install system configuration files"
+
+valopt datadir "${CFG_PREFIX}/share" "install data"
+valopt infodir "${CFG_PREFIX}/share/info" "install additional info"
+valopt mandir "${CFG_PREFIX}/share/man" "install man pages in PATH"
+valopt libdir "${CFG_PREFIX}/lib" "install libraries" 
+
+#Deprecated opts to keep compatibility
+valopt build-triple "${DEFAULT_BUILD}" "LLVM build triple"
+valopt host-triples "${CFG_BUILD}" "LLVM host triples"
+valopt target-triples "${CFG_HOST}" "LLVM target triples"
+
 # Validate Options
 step_msg "validating $CFG_SELF args"
 validate_opt
@@ -589,23 +603,44 @@ fi
 # a little post-processing of various config values
 
 CFG_PREFIX=${CFG_PREFIX%/}
-CFG_HOST_TRIPLES="$(echo $CFG_HOST_TRIPLES | tr ',' ' ')"
-CFG_TARGET_TRIPLES="$(echo $CFG_TARGET_TRIPLES | tr ',' ' ')"
-CFG_SUPPORTED_TARGET_TRIPLES="$(grep ^CC_*=* $CFG_SRC_DIR/mk/platform.mk | sed -e 's/^CC_//' -e 's/\([^=]*\).*/\1/' | xargs)"
+CFG_MANDIR=${CFG_MANDIR%/}
+CFG_HOST="$(echo $CFG_HOST | tr ',' ' ')"
+CFG_TARGET="$(echo $CFG_TARGET | tr ',' ' ')"
+CFG_SUPPORTED_TARGET="$(grep ^CC_*=* $CFG_SRC_DIR/mk/platform.mk | sed -e 's/^CC_//' -e 's/\([^=]*\).*/\1/' | xargs)"
 
 # copy host-triples to target-triples so that hosts are a subset of targets
 V_TEMP=""
+for i in $CFG_HOST $CFG_TARGET;
+do
+   echo "$V_TEMP" | grep -qF $i || V_TEMP="$V_TEMP${V_TEMP:+ }$i"
+done
+CFG_TARGET=$V_TEMP
+
+# copy host-triples to target-triples so that hosts are a subset of targets
+# XXX: remove deprecated variables here
+V_TEMP=""
 for i in $CFG_HOST_TRIPLES $CFG_TARGET_TRIPLES;
 do
    echo "$V_TEMP" | grep -qF $i || V_TEMP="$V_TEMP${V_TEMP:+ }$i"
 done
 CFG_TARGET_TRIPLES=$V_TEMP
 
+# XXX: Support for deprecated syntax, should be dropped.
+if [ ! -z "$CFG_BUILD_TRIPLE" ]; then
+    CFG_BUILD=${CFG_BUILD_TRIPLE}
+fi
+if [ ! -z "$CFG_HOST_TRIPLES" ]; then
+    CFG_HOST=${CFG_HOST_TRIPLES}
+fi
+if [ ! -z "$CFG_TARGET_TRIPLES" ]; then
+    CFG_TARGET=${CFG_TARGET_TRIPLES}
+fi
+
 # check target-specific tool-chains
-for i in $CFG_TARGET_TRIPLES
+for i in $CFG_TARGET
 do
     L_CHECK=false
-    for j in $CFG_SUPPORTED_TARGET_TRIPLES
+    for j in $CFG_SUPPORTED_TARGET
     do
         if [ $i = $j ]
         then
@@ -664,17 +699,17 @@ do
     make_dir $i
 done
 
-for t in $CFG_HOST_TRIPLES
+for t in $CFG_HOST
 do
     make_dir $t/llvm
 done
 
-for t in $CFG_HOST_TRIPLES
+for t in $CFG_HOST
 do
     make_dir $t/rustllvm
 done
 
-for t in $CFG_TARGET_TRIPLES
+for t in $CFG_TARGET
 do
   make_dir $t/rt
   for s in 0 1 2 3
@@ -703,9 +738,9 @@ then
     CFG_LIBDIR=bin
 fi
 
-for h in $CFG_HOST_TRIPLES
+for h in $CFG_HOST
 do
-    for t in $CFG_TARGET_TRIPLES
+    for t in $CFG_TARGET
     do
         for i in 0 1 2 3
         do
@@ -785,7 +820,7 @@ fi
 # Configure llvm, only if necessary
 step_msg "looking at LLVM"
 CFG_LLVM_SRC_DIR=${CFG_SRC_DIR}src/llvm/
-for t in $CFG_HOST_TRIPLES
+for t in $CFG_HOST
 do
     do_reconfigure=1
 
@@ -961,20 +996,15 @@ putvar CFG_OSTYPE
 putvar CFG_CPUTYPE
 putvar CFG_CONFIGURE_ARGS
 putvar CFG_PREFIX
-putvar CFG_BUILD_TRIPLE
-putvar CFG_HOST_TRIPLES
-putvar CFG_TARGET_TRIPLES
+putvar CFG_BUILD
+putvar CFG_HOST
+putvar CFG_TARGET
 putvar CFG_C_COMPILER
 putvar CFG_LIBDIR
 putvar CFG_DISABLE_MANAGE_SUBMODULES
 putvar CFG_ANDROID_CROSS_PATH
 putvar CFG_MINGW32_CROSS_PATH
-
-if [ ! -z "$CFG_ENABLE_PAX_FLAGS" ]
-then
-    putvar CFG_ENABLE_PAX_FLAGS
-    putvar CFG_PAXCTL
-fi
+putvar CFG_MANDIR
 
 # Avoid spurious warnings from clang by feeding it original source on
 # ccache-miss rather than preprocessed input.
@@ -1015,7 +1045,7 @@ fi
 putvar CFG_LLVM_ROOT
 putvar CFG_LLVM_SRC_DIR
 
-for t in $CFG_HOST_TRIPLES
+for t in $CFG_HOST
 do
     CFG_LLVM_BUILD_DIR=$(echo CFG_LLVM_BUILD_DIR_${t} | tr - _)
     CFG_LLVM_INST_DIR=$(echo CFG_LLVM_INST_DIR_${t} | tr - _)

mk/clean.mk

@@ -14,13 +14,13 @@
 
 CLEAN_STAGE_RULES =								\
  $(foreach stage, $(STAGES),					\
-  $(foreach host, $(CFG_HOST_TRIPLES),		\
+  $(foreach host, $(CFG_HOST),		\
    clean$(stage)_H_$(host)						\
-   $(foreach target, $(CFG_TARGET_TRIPLES),		\
+   $(foreach target, $(CFG_TARGET),		\
     clean$(stage)_T_$(target)_H_$(host))))
 
 CLEAN_LLVM_RULES = 								\
- $(foreach target, $(CFG_HOST_TRIPLES),		\
+ $(foreach target, $(CFG_HOST),		\
   clean-llvm$(target))
 
 .PHONY: clean clean-all clean-misc clean-llvm
@@ -33,17 +33,17 @@ clean: clean-misc $(CLEAN_STAGE_RULES)
 
 clean-misc:
 	@$(call E, cleaning)
-	$(Q)find $(CFG_BUILD_TRIPLE)/rustllvm \
-	         $(CFG_BUILD_TRIPLE)/rt \
-		 $(CFG_BUILD_TRIPLE)/test \
+	$(Q)find $(CFG_BUILD)/rustllvm \
+	         $(CFG_BUILD)/rt \
+		 $(CFG_BUILD)/test \
          -name '*.[odasS]' -o \
          -name '*.so' -o      \
          -name '*.dylib' -o   \
          -name '*.dll' -o     \
          -name '*.def' -o     \
          -name '*.bc'         \
          | xargs rm -f
-	$(Q)find $(CFG_BUILD_TRIPLE)\
+	$(Q)find $(CFG_BUILD)\
          -name '*.dSYM'       \
          | xargs rm -Rf
 	$(Q)rm -f $(RUNTIME_OBJS) $(RUNTIME_DEF)
@@ -86,7 +86,7 @@ clean$(1)_H_$(2):
 
 endef
 
-$(foreach host, $(CFG_HOST_TRIPLES), \
+$(foreach host, $(CFG_HOST), \
  $(eval $(foreach stage, $(STAGES), \
   $(eval $(call CLEAN_HOST_STAGE_N,$(stage),$(host))))))
 
@@ -118,8 +118,8 @@ clean$(1)_T_$(2)_H_$(3):
 	$(Q)rm -f $$(TLIB$(1)_T_$(2)_H_$(3))/run_pass_stage* # For windows
 endef
 
-$(foreach host, $(CFG_HOST_TRIPLES), \
- $(eval $(foreach target, $(CFG_TARGET_TRIPLES), \
+$(foreach host, $(CFG_HOST), \
+ $(eval $(foreach target, $(CFG_TARGET), \
   $(eval $(foreach stage, 0 1 2 3, \
    $(eval $(call CLEAN_TARGET_STAGE_N,$(stage),$(target),$(host))))))))
 
@@ -133,5 +133,5 @@ clean-llvm$(1): ;
 endif
 endef
 
-$(foreach host, $(CFG_HOST_TRIPLES), \
+$(foreach host, $(CFG_HOST), \
  $(eval $(call DEF_CLEAN_LLVM_HOST,$(host))))