gentoo-overlay/dev-lang/ghc/files/ghc-6.12.3-mach-o-relocation-limit.patch

http://hackage.haskell.org/trac/ghc/attachment/ticket/3260/mach-o-relocation-limit.patch

Sat May  8 23:24:11 JST 2010  pho@cielonegro.org
  * Work around for Mach-O relocation limit
  
  Mach-O has a limitation on the length of relocation addresses. No
  segments can be larger than 2^24 - 1 bytes (approx 16 MiB; See
  /usr/include/mach-o/reloc.h). Static GHCi libraries are merged large
  objects so they tend to exceed this limit.

--- rules/build-package-way.mk
+++ rules/build-package-way.mk
@@ -83,8 +83,21 @@
 ifneq "$4" "0"
 BINDIST_LIBS += $$($1_$2_GHCI_LIB)
 endif
+
+ifeq "$$(darwin_HOST_OS)" "1"
+# Mach-O has a limitation on the length of relocation addresses. No
+# segments can be larger than 2^24 - 1 bytes (approx 16 MiB; See
+# /usr/include/mach-o/reloc.h). Static GHCi libraries are merged large
+# objects so they tend to exceed this limit.
+$$($1_$2_GHCI_LIB) : $$($1_$2_$3_HS_OBJS) $$($1_$2_$3_CMM_OBJS) $$($1_$2_$3_C_OBJS) $$($1_$2_$3_S_OBJS) $$($1_$2_EXTRA_OBJS)
+	"$$(LD)" -r -o $$@ $$(EXTRA_LD_OPTS) $$($1_$2_$3_HS_OBJS) $$($1_$2_$3_CMM_OBJS) $$($1_$2_$3_C_OBJS) $$($1_$2_$3_S_OBJS) `$$($1_$2_$3_MKSTUBOBJS)` $$($1_$2_EXTRA_OBJS) \
+		|| ( echo "Warning: creating dummy $$@" && \
+			 touch empty.c && \
+		     "$(CC)" $(SRC_CC_OPTS) $(CONF_CC_OPTS) -c empty.c -o $$@ )
+else
 $$($1_$2_GHCI_LIB) : $$($1_$2_$3_HS_OBJS) $$($1_$2_$3_CMM_OBJS) $$($1_$2_$3_C_OBJS) $$($1_$2_$3_S_OBJS) $$($1_$2_EXTRA_OBJS)
 	"$$(LD)" -r -o $$@ $$(EXTRA_LD_OPTS) $$($1_$2_$3_HS_OBJS) $$($1_$2_$3_CMM_OBJS) $$($1_$2_$3_C_OBJS) $$($1_$2_$3_S_OBJS) `$$($1_$2_$3_MKSTUBOBJS)` $$($1_$2_EXTRA_OBJS)
+endif
 
 $(call all-target,$1_$2,$$($1_$2_GHCI_LIB))
 endif