GHC new build system megapatch

[ghc-hetmet.git] / rules / distdir-opts.mk

diff --git a/rules/distdir-opts.mk b/rules/distdir-opts.mk
new file mode 100644 (file)
index 0000000..5394adf
--- /dev/null
+++ b/rules/distdir-opts.mk
@@ -0,0 +1,60 @@
+
+# Set compilation flags that depend on a particular directory/distdir
+
+define distdir-opts # args: $1 = dir, $2 = distdir
+# $3 = GHC stage to use (0 == bootstrapping compiler)
+
+ifeq "$3" "0"
+# This is a bit of a hack.
+# If we are compiling something with the bootstrapping compiler on
+# cygwin, and it uses an include file from the rts (say), then we
+# need to stop mkdependC from generating a dependincy on
+#     c:/ghc/rts/include/Rts.h
+# as that confuses make. So we use -isystem instead of -I, which stops
+# these dependencies from being generated. Technically this is wrong if
+# we depend on a library that is built inside the build tree, and we
+# use headers from that library, but currently I don't think that's the
+# case.
+$1_$2_DEP_INCLUDE_DIRS_FLAG = -isystem
+else
+$1_$2_DEP_INCLUDE_DIRS_FLAG = -I
+endif
+
+$1_$2_BUILD_CC_OPTS = \
+ $$(SRC_CC_OPTS) \
+ $$($1_CC_OPTS) \
+ $$(foreach dir,$$($1_$2_INCLUDE_DIRS),-I$1/$$(dir)) \
+ $$($1_$2_CC_OPTS) \
+ $$($1_$2_CPP_OPTS) \
+ $$(foreach dir,$$($1_$2_DEP_INCLUDE_DIRS),$$($1_$2_DEP_INCLUDE_DIRS_FLAG)$$(dir)) \
+ $$($1_$2_DEP_CC_OPTS)
+
+$1_$2_BUILD_LD_OPTS = \
+ $$(SRC_LD_OPTS) \
+ $$($1_LD_OPTS) \
+ $$($1_$2_LD_OPTS) \
+ $$(foreach opt,$$($1_$2_DEP_LIB_DIRS),-L$$(opt)) \
+ $$(foreach opt,$$($1_$2_DEP_EXTRA_LIBS),-l$$(opt)) \
+ $$($1_$2_DEP_LD_OPTS)
+
+# c.f. Cabal's Distribution.Simple.GHC.ghcOptions
+$1_$2_BUILD_HC_OPTS = \
+ $$(SRC_HC_OPTS) \
+ $$($1_HC_OPTS) \
+ $$($1_$2_HC_PKGCONF) \
+ $$(if $$($1_$2_PROG),, \
+        $$(if $$($1_PACKAGE),-package-name $$($1_PACKAGE)-$$($1_$2_VERSION))) \
+ $$(if $$($1_PACKAGE),-hide-all-packages) \
+ -i $$(if $$($1_$2_HS_SRC_DIRS),$$(foreach dir,$$($1_$2_HS_SRC_DIRS),-i$1/$$(dir)),-i$1) \
+ -i$1/$2/build -i$1/$2/build/autogen \
+ -I$1/$2/build -I$1/$2/build/autogen \
+ $$(foreach dir,$$($1_$2_INCLUDE_DIRS),-I$1/$$(dir)) \
+ $$(foreach inc,$$($1_$2_INCLUDE),-\#include "$$(inc)") \
+ $$(foreach opt,$$($1_$2_CPP_OPTS),-optP$$(opt)) \
+ $$(if $$($1_PACKAGE),-optP-include -optP$1/$2/build/autogen/cabal_macros.h) \
+ $$(foreach pkg,$$($1_$2_DEPS),-package $$(pkg)) \
+ $$(if $$(findstring YES,$$($1_$2_SplitObjs)),-split-objs,) \
+ $$($1_$2_HC_OPTS)
+
+endef
+