From 54387db6e7953815d79444eb6ffd0f7694327657 Mon Sep 17 00:00:00 2001
From: Bernhard Urban <lewurm@gmail.com>
Date: Sat, 14 Apr 2012 14:51:41 +0200
Subject: [PATCH] Makefile: GHCi still broken

although
http://stackoverflow.com/questions/10123040/ghci-doesnt-work-with-ffi-export-declarations-shared-libaries
fixed an issue, there is now a different one:
> $ make ghci
> [...]
> Ok, modules loaded: Main, Mate.X86CodeGen, Mate.MethodPool, Mate.BasicBlocks, Mate.Utilities.
> Prelude Main> main
>
>
> GHCi runtime linker: fatal error: I found a duplicate definition for symbol
>    MateziUtilities_lookupMethod_srt
> whilst processing object file
>    ./Mate/Utilities.o
> This could be caused by:
>    * Loading two different object files which export the same symbol
>    * Specifying the same object file twice on the GHCi command line
>    * An incorrect `package.conf' entry, causing some object to be
>      loaded twice.
> GHCi cannot safely continue in this situation.  Exiting now.  Sorry.
>
> make: *** [ghci] Error 1

so, `make ghci' and `make tags' still doesn't work due to FFI stuff.
we have to use `make test' until we fix it :-(
---
 Makefile             | 22 ++++++++++++++++------
 trap.c => ffi/trap.c |  0
 2 files changed, 16 insertions(+), 6 deletions(-)
 rename trap.c => ffi/trap.c (100%)

diff --git a/Makefile b/Makefile
index 3501621..c171267 100644
--- a/Makefile
+++ b/Makefile
@@ -4,8 +4,15 @@ JAVAC := javac
 JAVA_FILES := $(wildcard tests/*.java)
 CLASS_FILES := $(JAVA_FILES:.java=.class)
 HS_FILES := $(wildcard Mate/*.hs)
+O_FILES = $(shell ls Mate/*.o) $(wildcard ffi/*.o)
+PACKAGES_ := bytestring harpy hs-java
+PACKAGES := $(addprefix -package ,$(PACKAGES_))
 
-GHC_OPT := -Wall -O2 -fno-warn-unused-do-bind
+GHC_OPT := -Wall -O0 -fno-warn-unused-do-bind
+GHC_LD := -optl-Xlinker -optl-x
+
+
+.PHONY: all test clean ghci
 
 all: mate $(CLASS_FILES)
 
@@ -15,13 +22,16 @@ test: mate $(CLASS_FILES)
 %.class: %.java
 	$(JAVAC) $<
 
-trap.o mate: Mate.hs trap.c $(HS_FILES)
-	ghc --make $(GHC_OPT) Mate.hs trap.c -o mate
+mate: Mate.hs ffi/trap.c $(HS_FILES)
+	ghc --make $(GHC_OPT) Mate.hs ffi/trap.c -o $@ $(GHC_LD)
 
 clean:
-	rm -f {Mate/,}*.hi {Mate/,}*.o mate tests/*.class
+	rm -f {Mate/,}*.hi {Mate/,ffi,}*.o mate tests/*.class
+
+ghci: mate
+	ghci $(PACKAGES) $(O_FILES) Mate.hs $(GHC_LD)
 
-tags: Mate.hs $(HS_FILES) trap.o
+tags: mate
 	@# @-fforce-recomp, see
 	@# http://stackoverflow.com/questions/7137414/how-do-i-force-interpretation-in-hint
-	ghc -fforce-recomp -e :ctags $^
+	ghc -fforce-recomp -e :ctags $(PACKAGES) $(HS_FILES) $(O_FILES) Mate.hs
diff --git a/trap.c b/ffi/trap.c
similarity index 100%
rename from trap.c
rename to ffi/trap.c
-- 
2.25.1