X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=mk%2Fconfig.mk.in;h=e1500b79e1ec2ac8cd441eb1cac2bf7f0d1aa027;hb=a277751c44d6db6f4aa93fd8dc06bfdfbdc86760;hp=0b54097c7423519e956757683687ea4b611b128b;hpb=c0be61743a875b59a1ffe6f0af6a50d4f9d091ef;p=ghc-hetmet.git

diff --git a/mk/config.mk.in b/mk/config.mk.in
index 0b54097..e1500b7 100644
--- a/mk/config.mk.in
+++ b/mk/config.mk.in
@@ -56,6 +56,13 @@
 # will be built as HC files for the target system, and likely won't
 # build on this host platform.
 #
+# An important invariant is that for any piece of source code, the
+# platform on which the code is going to run is the HOST platform,
+# and the platform on which we are building is the BUILD platform.
+# Additionally for the compiler, the platform this compiler will
+# generate code for is the TARGET.  TARGET is not meaningful outside
+# the compiler sources.
+#
 # Guidelines for when to use HOST vs. TARGET:
 #
 #  - In the build system (Makefile, foo.mk), normally we should test
@@ -65,11 +72,10 @@
 #
 #  - In the compiler itself, we should test HOST or TARGET depending
 #    on whether the conditional relates to the code being generated, or
-#    the platform on which the compiler is running.  For stage 2,
-#    HOSTPLATFORM should be reset to be TARGETPLATFORM (we currently
-#    don't do this, but we should).
+#    the platform on which the compiler is running.  See the section
+#    on "Coding Style" in the commentary for more details.
 #
-#  - In the RTS and library code, we should be testing TARGET only.
+#  - In all other code, we should be testing HOST only.
 #
 # NOTE: cross-compiling is not well supported by the build system.
 # You have to do a lot of work by hand to cross compile: see the
@@ -247,8 +253,9 @@ GhcUnregisterised=NO
 # (as well as a C backend)
 #
 # Target platforms supported:
-#   i386, sparc & powerpc
-ifneq "$(findstring $(HostArch_CPP), i386 sparc powerpc)" ""
+#   i386, powerpc
+#   sparc has bitrotted
+ifneq "$(findstring $(HostArch_CPP), i386 powerpc)" ""
 GhcWithNativeCodeGen=YES
 else
 GhcWithNativeCodeGen=NO
@@ -295,6 +302,7 @@ endif
 #   thr_p       : threaded profiled
 #   debug       : debugging (compile with -g for the C compiler, and -DDEBUG)
 #   debug_p     : debugging profiled
+#   debug_u     : debugging unregisterised
 #   thr_debug   : debugging threaded
 #   thr_debug_p : debugging threaded profiled
 #
@@ -317,17 +325,6 @@ GhcLibHcOpts=-O -Rghc-timing
 # Win32 only: Enable the RTS and libraries to be built as DLLs
 DLLized=@EnableWin32DLLs@
 
-# Win32 only: are we building a compiler that tries to reduce external
-# dependencies? i.e., one that doesn't assume that the user has got
-# the cygwin toolchain installed on his/her Win32 box.
-#
-# GHC is still dependent on GNU tools in the backend (gcc to further process
-# .c/.hc/.s/.o files + 'perl' to mangle and split), but using this
-# option a GHC distribution can be put together which includes a minimal
-# set of these open source tools. 
-#
-MinimalUnixDeps=@MinimalUnixDeps@
-
 # Strip local symbols from libraries?  This can make the libraries smaller,
 # but makes debugging somewhat more difficult.  Doesn't work with all ld's.
 #
@@ -396,27 +393,6 @@ LIBM=@LIBM@
 #
 GhcLibsWithObjectIO=@GhcLibsWithObjectIO@
 
-# Build the Haskell OpenGL binding?
-#
-GhcLibsWithOpenGL=@GhcLibsWithOpenGL@
-GLU_CFLAGS=@GLU_CFLAGS@
-GLU_LIBS=@GLU_LIBS@
-
-# Build the Haskell OpenAL binding?
-#
-GhcLibsWithOpenAL=@GhcLibsWithOpenAL@
-
-# Build the Haskell GLUT binding?
-#
-GhcLibsWithGLUT=@GhcLibsWithGLUT@
-GLUT_LIBS=@GLUT_LIBS@
-
-# X11 stuff
-#
-GhcLibsWithX11=@GhcLibsWithX11@
-X_CFLAGS=@X_CFLAGS@
-X_LIBS=@X_LIBS@
-
 # .NET interop support?
 #
 DotnetSupport=@DotnetSupport@
@@ -771,9 +747,6 @@ ifeq "$(TARGETPLATFORM)" "ia64-unknown-linux"
 SRC_CC_OPTS += -G0
 endif
 
-# Solaris2 strikes again.
-unix_SRC_HSC2HS_OPTS += @unix_SRC_HSC2HS_OPTS@
-
 #-----------------------------------------------------------------------------
 # GMP Library (version 2.0.x or above)
 #
@@ -797,11 +770,6 @@ HaveFrameworkHaskellSupport = @HaveFrameworkHaskellSupport@
 HavePosixRegex  = @HavePosixRegex@
 
 #-----------------------------------------------------------------------------
-# GTK+
-
-GTK_CONFIG		= @GTK_CONFIG@
-
-#-----------------------------------------------------------------------------
 # Flex (currently unused, could be moved to glafp-utils)
 
 # FLEX			= @LEX@
@@ -851,12 +819,17 @@ RM			= rm -f
 SED			= @SedCmd@
 SHELL			= /bin/sh
 
+LD			= @LdCmd@
+
 # Some ld's support the -x flag and some don't, so the configure
 # script detects which we have and sets LdXFlag to "-x" or ""
 # respectively.
-LD			= @LdCmd@
 LD_X			= @LdXFlag@
 
+# GNU ld supports input via a linker script, which is useful to avoid
+# overflowing command-line length limits.
+LdIsGNULd		= @LdIsGNULd@
+
 #
 # In emergency situations, REAL_SHELL is used to perform shell commands
 # from within the ghc driver script, by scribbling the command line to
@@ -927,7 +900,6 @@ ETAGS			= $(ETAGS_PREFIX)etags
 VERBATIM		= $(VERBATIM_PREFIX)verbatim
 SGMLVERB		= $(SGMLVERB_PREFIX)sgmlverb
 RUNTEST			= $(RUNTEST_PREFIX)runstdtest
-LX			= @LxCmd@
 
 BLD_DLL			= dllwrap
 
@@ -1091,6 +1063,10 @@ WAY_debug_HC_OPTS=-optc-DDEBUG
 WAY_debug_p_NAME=debug profiled
 WAY_debug_p_HC_OPTS=-optc-DDEBUG -prof
 
+# Way 'debug_u':
+WAY_debug_u_NAME=debug unregisterised
+WAY_debug_u_HC_OPTS=-optc-DDEBUG -unreg
+
 # Way 'thr_debug':
 WAY_thr_debug_NAME=threaded
 WAY_thr_debug_HC_OPTS=-optc-DTHREADED_RTS -optc-DDEBUG