Repair ghc bootstrap which broke for ghc-9.2

The ffi header files should be excluded.

Moved the bootstrap.mk into a file instead of echoing into it
repeatedly.

kili@: can't get worse

lang/ghc/Makefile

@@ -170,7 +170,7 @@ do-test:
 # It doesn't matter whether this is the actual date of the bootstrapper
 # build. It's just used to get different distfiles whenever new
 # bootstrappers have to be built.
-BOOTSTRAP_DATE =	20210429
+BOOTSTRAP_DATE =	20220830
 
 # Create a bootstrapper. This compiles a stripped-down version of
 # ghc and creates a `bindist', i.e. a tarball with binaries that
@@ -180,8 +180,8 @@ bootstrap: patch
 		echo Please install autoconf-${AUTOCONF_VERSION}.; \
 		false; \
 	fi
-	@if [ ! -x ${LOCALBASE}/bin/automake-1.4 ]; then \
-		echo Please install automake-1.4.; \
+	@if [ ! -x ${LOCALBASE}/bin/automake-${AUTOMAKE_VERSION} ]; then \
+		echo Please install automake-${AUTOMAKE_VERSION}; \
 		false; \
 	fi
 
@@ -190,29 +190,12 @@ bootstrap: patch
 	env CONFIGURE_ENV=RELEASE=NO ${MAKE} configure
 
 	${MAKE} build ALL_TARGET="all binary-dist" \
-		AUTOCONF_VERSION=${AUTOCONF_VERSION} AUTOMAKE_VERSION=1.4
+		AUTOCONF_VERSION=${AUTOCONF_VERSION} AUTOMAKE_VERSION=${AUTOMAKE_VERSION}
 
 	$(_PBUILD) $(MAKE) _bootstrap_finish
 
 _bootstrap_prepare:
-	echo HSCOLOUR_SRCS=NO > ${WRKSRC}/mk/build.mk
-	echo GhcLibHcOpts=-O -fasm >> ${WRKSRC}/mk/build.mk
-	echo GhcStage1HcOpts=-O -fasm >> ${WRKSRC}/mk/build.mk
-	echo GhcStage2HcOpts=-O -fasm >> ${WRKSRC}/mk/build.mk
-	echo SplitObjs=NO >> ${WRKSRC}/mk/build.mk
-	echo GhcLibWays=v >> ${WRKSRC}/mk/build.mk
-	echo GhcRTSWays=thr >> ${WRKSRC}/mk/build.mk
-	echo GhcWithInterpreter=NO >> ${WRKSRC}/mk/build.mk
-	echo GhcThreaded=YES >> ${WRKSRC}/mk/build.mk
-	echo INTEGER_LIBRARY=integer-simple >> ${WRKSRC}/mk/build.mk
-	echo SRC_CC_OPTS+=-g -O0 >> ${WRKSRC}/mk/build.mk
-	echo HADDOCK_DOCS=NO >> ${WRKSRC}/mk/build.mk
-	echo BUILD_SPHINX_HTML=NO >> ${WRKSRC}/mk/build.mk
-	echo BUILD_SPHINX_PDF=NO >> ${WRKSRC}/mk/build.mk
-	echo GhcWithSMP=NO >> ${WRKSRC}/mk/build.mk
-	echo LD_OPTS=-optl-static -optl-s >> ${WRKSRC}/mk/build.mk
-	echo DYNAMIC_GHC_PROGRAMS=No >> ${WRKSRC}/mk/build.mk
-
+	cp ${FILESDIR}/bootstrap.mk ${WRKSRC}/mk/build.mk
 	echo ${BOOTSTRAP_DATE} > ${WRKSRC}/VERSION_DATE
 
 _bootstrap_finish:

lang/ghc/files/bootstrap.mk

@@ -0,0 +1,17 @@
+HSCOLOUR_SRCS=NO
+GhcLibHcOpts=-O -fasm
+GhcStage1HcOpts=-O -fasm
+GhcStage2HcOpts=-O -fasm
+SplitObjs=NO
+GhcLibWays=v
+GhcRTSWays=thr thr_l
+GhcWithInterpreter=NO
+GhcThreaded=YES
+INTEGER_LIBRARY=integer-simple
+SRC_CC_OPTS+=-g -O0
+HADDOCK_DOCS=NO
+BUILD_SPHINX_HTML=NO
+BUILD_SPHINX_PDF=NO
+GhcWithSMP=NO
+LD_OPTS=-optl-static -optl-s
+DYNAMIC_GHC_PROGRAMS=No

lang/ghc/patches/patch-ghc_mk

@@ -0,0 +1,16 @@
+Avoids picking up non-existent FFI headers. The logic for their
+inclusion into bindist should be conditional, but we don't care about
+fixing this better. In ghc 9.4 bindist is bulit via Hadrian and so
+this patch becomes irrelevant.
+
+Index: ghc.mk
+--- ghc.mk.orig
++++ ghc.mk
+@@ -1049,7 +1049,6 @@ $(eval $(call bindist-list,.,\
+     $(includes_1_H_VERSION) \
+     $(includes_DERIVEDCONSTANTS) \
+     $(includes_GHCCONSTANTS) \
+-    $(libffi_HEADERS) \
+     $(INSTALL_LIBEXECS) \
+     $(INSTALL_LIBEXEC_SCRIPTS) \
+     $(INSTALL_BINS) \