[project @ 2003-01-24 16:05:57 by simonmar]

[ghc-hetmet.git] / mk / suffix.mk

diff --git a/mk/suffix.mk b/mk/suffix.mk
index fecfd3a..49a420d 100644 (file)
--- a/mk/suffix.mk
+++ b/mk/suffix.mk
@@ -16,16 +16,11 @@
 
 .SUFFIXES:
 
-# However, if $(way) is set then we have to define $(way_) and $(_way)
-# from it in the obvious fashion.
-# This must be done here (or earlier), but not in target.mk with the other
-# way management, because the pattern rules in this file take a snapshot of
-# the value of $(way_) and $(_way), and it's no good setting them later!
-
-ifneq "$(way)" ""
-  way_ := $(way)_
-  _way := _$(way)
-endif
+# This declaration tells GNU make to delete the target if it has
+# changed and the command which created it exited with a non-zero exit
+# code.
+
+.DELETE_ON_ERROR:
 
 #-----------------------------------------------------------------------------
 # Haskell Suffix Rules
@@ -35,40 +30,48 @@ endif
 # this case.
 ifneq "$(BootingFromHc)" "YES"
 
-%.$(way_)o : %.hs
+# The $(odir) support is for building GHC, where we need to build three
+# different versions from the same sources.  See ghc/compiler/Makefile.
+ifneq "$(odir)" ""
+odir_ = $(odir)/
+else
+odir_ =
+endif
+
+$(odir_)%.$(way_)o : %.hs
        $(HC_PRE_OPTS)
-       $(HC) $(HC_OPTS) -c $< -o $@
+       $(HC) $(HC_OPTS) -c $< -o $@  -ohi $(basename $@).$(way_)hi
        $(HC_POST_OPTS)
 
-%.$(way_)o : %.lhs      
+$(odir_)%.$(way_)o : %.lhs      
        $(HC_PRE_OPTS)
-       $(HC) $(HC_OPTS) -c $< -o $@
+       $(HC) $(HC_OPTS) -c $< -o $@  -ohi $(basename $@).$(way_)hi
        $(HC_POST_OPTS)
 
-%.$(way_)hc : %.lhs     
+$(odir_)%.$(way_)hc : %.lhs     
        $(RM) $@
        $(HC) $(HC_OPTS) -C $< -o $@
 
-%.$(way_)hc : %.hs      
+$(odir_)%.$(way_)hc : %.hs      
        $(RM) $@
        $(HC) $(HC_OPTS) -C $< -o $@
 
-%.$(way_)o : %.$(way_)hc 
+$(odir_)%.$(way_)o : %.$(way_)hc 
        $(HC_PRE_OPTS)
        $(HC) $(HC_OPTS) -c $< -o $@
        $(HC_POST_OPTS)
 
-%.$(way_)o : %.hc 
+$(odir_)%.$(way_)o : %.hc 
        $(HC_PRE_OPTS)
        $(HC) $(HC_OPTS) -c $< -o $@
        $(HC_POST_OPTS)
 
-%.$(way_)s : %.$(way_)hc 
+$(odir_)%.$(way_)s : %.$(way_)hc 
        $(HC_PRE_OPTS)
        $(HC) $(HC_OPTS) -S $< -o $@
        $(HC_POST_OPTS)
 
-%.$(way_)hc : %.lhc
+$(odir_)%.$(way_)hc : %.lhc
        @$(RM) $@
        $(UNLIT) $< $@
        @chmod 444 $@
@@ -89,7 +92,7 @@ ifneq "$(BootingFromHc)" "YES"
        else exit 0 ; \
        fi                                                      
 
-%.$(way_)hi : %.$(way_)hc
+$(odir_)%.$(way_)hi : %.$(way_)hc
        @if [ ! -f $@ ] ; then \
            echo Panic! $< exists, but $@ does not.; \
            exit 1; \
@@ -101,7 +104,7 @@ endif # BootingViaC
 #-----------------------------------------------------------------------------
 # Happy Suffix Rules
 #
-.PRECIOUS: %.hs
+.SECONDARY: %.hs
 
 %.hs : %.ly
        $(HAPPY) $(HAPPY_OPTS) $<
@@ -143,41 +146,41 @@ endif
 #-----------------------------------------------------------------------------
 # C-related suffix rules
 
-ifeq "$(UseGhcForCc)" ""
+ifeq "$(UseGhcForCc)" "YES"
 
-%.$(way_)o : %.$(way_)s
+$(odir_)%.$(way_)o : %.$(way_)s
        @$(RM) $@
-       $(AS) $(AS_OPTS) -o $@ $< || ( $(RM) $@ && exit 1 )
+       $(HC) $(GHC_CC_OPTS) -c $< -o $@
 
-%.$(way_)o : %.c
+$(odir_)%.$(way_)o : %.c
        @$(RM) $@
-       $(CC) $(CC_OPTS) -c $< -o $@
+       $(HC) $(GHC_CC_OPTS) -c $< -o $@
 
-%.$(way_)o : %.S
+$(odir_)%.$(way_)o : %.S
        @$(RM) $@
-       $(CC) $(CC_OPTS) -c $< -o $@
+       $(HC) $(GHC_CC_OPTS) -c $< -o $@
 
-%.$(way_)s : %.c
+$(odir_)%.$(way_)s : %.c
        @$(RM) $@
-       $(CC) $(CC_OPTS) -S $< -o $@
+       $(HC) $(GHC_CC_OPTS) -S $< -o $@
 
 else
 
-%.$(way_)o : %.$(way_)s
+$(odir_)%.$(way_)o : %.$(way_)s
        @$(RM) $@
-       $(HC) $(GHC_CC_OPTS) -c $< -o $@
+       $(AS) $(AS_OPTS) -o $@ $<
 
-%.$(way_)o : %.c
+$(odir_)%.$(way_)o : %.c
        @$(RM) $@
-       $(HC) $(GHC_CC_OPTS) -c $< -o $@
+       $(CC) $(CC_OPTS) -c $< -o $@
 
-%.$(way_)o : %.S
+$(odir_)%.$(way_)o : %.S
        @$(RM) $@
-       $(HC) $(GHC_CC_OPTS) -c $< -o $@
+       $(CC) $(CC_OPTS) -c $< -o $@
 
-%.$(way_)s : %.c
+$(odir_)%.$(way_)s : %.c
        @$(RM) $@
-       $(HC) $(GHC_CC_OPTS) -c $< -o $@
+       $(CC) $(CC_OPTS) -S $< -o $@
 
 endif
 
@@ -190,10 +193,10 @@ endif
 
 %.c : %.flex
        @$(RM) $@
-       $(FLEX) -t $(FLEX_OPTS) $< > $@ || ( $(RM) $@ && exit 1 )
+       $(FLEX) -t $(FLEX_OPTS) $< > $@
 %.c : %.lex
        @$(RM) $@
-       $(FLEX) -t $(FLEX_OPTS) $< > $@ || ( $(RM) $@ && exit 1 )
+       $(FLEX) -t $(FLEX_OPTS) $< > $@
 
 #-----------------------------------------------------------------------------
 # Yacc stuff
@@ -303,5 +306,5 @@ endif
 # Preprocessor suffix rule
 
 % : %.pp
-       rm -f $@
+       @$(RM) $@
        $(CPP) $(CPP_OPTS) -x c $< | $(SED) -e '/^#/d' > $@