From 14b99f6fa46fc83aae3a7b8f3f328ddc85871c76 Mon Sep 17 00:00:00 2001
From: PHO <pho@cielonegro.org>
Date: Fri, 16 Mar 2012 18:07:54 +0900
Subject: [PATCH] Various changes to support Linux

---
 build-hc-pkg        | 12 ++++++++++++
 files/host-build.mk |  7 +++++++
 mk/main.mk          |  3 ++-
 3 files changed, 21 insertions(+), 1 deletion(-)

diff --git a/build-hc-pkg b/build-hc-pkg
index 868039e..e900fcf 100755
--- a/build-hc-pkg
+++ b/build-hc-pkg
@@ -36,6 +36,17 @@ function detect_gnu_tar () {
     fi
 }
 
+function detect_gnu_sed () {
+    if which gsed >/dev/null 2>&1; then
+        echo "gsed"
+    elif sed --version | grep -qF GNU; then
+        echo "sed"
+    else
+        echo "We need GNU sed to be installed." >&2
+        exit 1
+    fi
+}
+
 function say_hello () {
     local -r self=$(basename "$0")
     local -r platform=$(detect_platform_type)
@@ -81,6 +92,7 @@ function build_hc_pkg () {
         SRCPATH="$srcpath" \
         PLATFORM="$(detect_platform_type)" \
         GNUTAR="$(detect_gnu_tar)" \
+        GNUSED="$(detect_gnu_sed)" \
         SHELL="$SHELL"
 
     echo "If you are done, run \"$0 clean\" to cleanup the working directory."
diff --git a/files/host-build.mk b/files/host-build.mk
index 3263302..b54c2e2 100644
--- a/files/host-build.mk
+++ b/files/host-build.mk
@@ -1,3 +1,4 @@
+# -*- makefile-gmake -*-
 PORTING_HOST = YES
 GhcUnregisterised = YES
 GhcLibHcOpts = -O -fvia-C -keep-hc-files
@@ -17,3 +18,9 @@ INTEGER_LIBRARY = integer-simple
 libraries/terminfo_CONFIGURE_OPTS += \
 	--configure-option=--with-curses-includes=/usr/pkg/include \
 	--configure-option=--with-curses-libraries=/usr/pkg/lib
+
+ifeq ($(shell uname),Linux)
+# To find out why evacuate() segfaults on Linux...
+rts_CC_OPTS += -O0 -g
+# ...but this stops ghc-stage2 from segfaulting. Sigh.
+endif
diff --git a/mk/main.mk b/mk/main.mk
index c3567a8..ad46595 100644
--- a/mk/main.mk
+++ b/mk/main.mk
@@ -1,5 +1,6 @@
 DIRNAME    := $(patsubst %-src.tar.bz2,%,$(notdir $(SRCPATH)))
 GNUTAR     ?= gtar
+GNUSED     ?= gsed
 HC_TARNAME ?= $(DIRNAME)-boot-$(PLATFORM).tar.bz2
 
 all: work/pack-hc-pkg.stamp
@@ -69,7 +70,7 @@ work/extract-boot-tarball.stamp: work/build-boot-tarball.stamp
 
 work/replace-paths.stamp: work/extract-boot-tarball.stamp
 	cd "work/$(DIRNAME)" && \
-		gsed -i \
+		$(GNUSED) -i \
 			-e 's#/usr/pkg#[[PREFIX]]#g' \
 			-e 's#'`pwd`'-host#[[GHC_SOURCE_PATH]]#g' \
 			inplace/lib/package.conf.d/*.conf \
-- 
2.40.0