Adds the Makefile-based build system, based on the instructions I originally gathered up in build.py.

Still needs work but is basically working.

Author: embray

.gitignore

@@ -5,3 +5,4 @@
 dist
 download
 envs
+.stamps

Makefile

@@ -0,0 +1,163 @@
+TARGETS=env-build env-runtime cygwin-build cygwin-runtime sage-build \
+        sage-runtime cygwin-extras-runtime
+.PHONY: all $(TARGETS)
+
+############################ Configurable Variables ###########################
+
+# Can be x86 or x86_64
+ARCH?=x86_64
+
+SAGE_VERSION?=7.4
+SAGE_BRANCH?=$(SAGE_VERSION)
+
+# Output paths
+DIST?=dist
+DOWNLOAD?=download
+ENVS?=envs
+STAMPS?=.stamps
+
+# Path to the Inno Setup executable
+ISCC?="/cygdrive/c/Program Files (x86)/Inno Setup 5/ISCC.exe"
+
+################################################################################
+
+# Actual targets for the main build stages (the stamp files)
+env-build=$(STAMPS)/env-build-$(ARCH)
+env-runtime=$(STAMPS)/env-runtime-$(SAGE_VERSION)-$(ARCH)
+cygwin-build=$(STAMPS)/cygwin-build-$(ARCH)
+cygwin-runtime=$(STAMPS)/cygwin-runtime-$(SAGE_VERSION)-$(ARCH)
+sage-build=$(STAMPS)/sage-build-$(SAGE_VERSION)-$(ARCH)
+sage-runtime=$(STAMPS)/sage-runtime-$(SAGE_VERSION)-$(ARCH)
+cygwin-runtime-extras=$(STAMPS)/cygwin-runtime-extras-$(SAGE_VERSION)-$(ARCH)
+
+###############################################################################
+
+# Resource paths
+CYGWIN_EXTRAS=cygwin_extras
+RESOURCES=resources
+DOT_SAGE=dot_sage
+ICONS:=$(wildcard $(RESOURCES)/*.bmp) $(wildcard $(RESOURCES)/*.ico)
+
+ENV_BUILD_DIR=$(ENVS)/build-$(ARCH)
+ENV_RUNIME_DIR=$(ENVS)/runtime-$(SAGE_VERSION)-$(ARCH)
+
+SAGE_GIT=git://git.sagemath.org/sage.git
+SAGE_ROOT=/opt/sagemath-$(SAGE_VERSION)
+SAGE_ROOT_BUILD=$(ENV_BUILD_DIR)$(SAGE_ROOT)
+SAGE_ROOT_RUNTIME=$(ENV_RUNTIME_DIR)$(SAGE_ROOT)
+
+# Outputs representing success in the Sage build process
+SAGE_CONFIGURE=$(SAGE_ROOT_BUILD)/configure
+SAGE_MAKEFILE=$(SAGE_ROOT_BUILD)/build/make/Makefile
+SAGE_STARTED=$(SAGE_ROOT_BUILD)/local/etc/sage-started.txt
+
+# Files used as input to ISCC
+SAGEMATH_ISS=SageMath.iss
+SOURCES:=$(SAGEMATH_ISS) $(DOT_SAGE) $(ICONS)
+
+# URL to download the Cygwin setup.exe
+CYGWIN_SETUP_NAME=setup-$(ARCH).exe
+CYGWIN_SETUP=$(DOWNLOAD)/$(CYGWIN_SETUP_NAME)
+CYGWIN_SETUP_URL=https://cygwin.com/$(CYGWIN_SETUP_NAME)
+CYGWIN_MIRROR=ftp://mirrors.kernel.org/sourceware/cygwin/
+
+SAGE_INSTALLER=$(DIST)/SageMath-$(SAGE_VERSION).exe
+
+TOOLS=tools
+SUBCYG=$(TOOLS)/subcyg
+
+DIRS=$(DIST) $(DOWNLOAD) $(ENVS) $(STAMPS)
+
+
+################################################################################
+
+all: $(SAGE_INSTALLER)
+
+$(SAGE_INSTALLER): $(ISCC) $(SOURCES) $(env-runtime) | $(DIST)
+	cd $(CUDIR)
+	"$(ISCC)" /DSageVersion=$(SAGE_VERSION) /DEnvsDir="$(ENVS)" \
+		/DOutputDir="$(DIST)" $(SAGEMATH_ISS)
+
+
+$(foreach target,$(TARGETS),$(eval $(target): $$($(target))))
+
+
+$(env-runtime): $(cygwin-runtime) $(sage-runtime) $(cygwin-runtime-extras)
+	(cd $(ENV_RUNTIME_DIR) && find . -type l) > $(ENV_RUNTIME_DIR)/etc/symlinks.lst
+	@touch $@
+
+
+$(sage-runtime): $(SAGE_ROOT_RUNTIME)
+
+$(SAGE_ROOT_RUNTIME): $(cygwin-runtime) $(sage-build)
+	[ -d $(dir $@) ] || mkdir $(dir $@)
+	cp -r $(SAGE_ROOT_BUILD) $(dir $@)
+	(cd $@ && rm -rf bootstrap config* logs m4 Makefile \
+		upstream local/var/tmp/sage/build/* local/var/lock/* \
+		src/build local/share/doc/sage/doctrees .git*)
+	@touch $@
+
+
+$(env-build): $(cygwin-build) $(sage-build)
+	@touch $@
+
+
+# TODO: This doesn't build the documentation yet
+$(sage-build): $(cygwin-build) $(SAGE_STARTED)
+	@touch $@
+
+
+$(cygwin-runtime-extras): $(cygwin-runtime)
+	cp -r $(CYGWIN_EXTRAS)/* $(ENV_RUNTIME_DIR)
+	echo "SAGE_VERSION=$(SAGE_VERSION)" > $(ENV_RUNTIME_DIR)/etc/sage-version
+	echo 'none /tmp usertemp binary,posix=0 0 0' >> $(ENV_RUNTIME_DIR)/etc/fstab
+	echo 'C:\Users /home ntfs binary,posix=1,acl 0 0' >> $(ENV_RUNTIME_DIR)/etc/fstab
+	@touch $@
+
+
+$(STAMPS)/cygwin-%: $(ENVS)/% | $(STAMPS)
+	@touch $@
+	
+
+$(ENVS)/%: cygwin-sage-%.list $(CYGWIN_SETUP)
+	"$(CYGWIN_SETUP)" --site $(CYGWIN_MIRROR) \
+		--local-package-dir "$$(cygpath -w -a $(DOWNLOAD))" \
+		--root "$$(cygpath -w -a $@)" \
+		--arch $(ARCH) --no-admin --no-shortcuts --quiet-mode \
+		--packages $$($(TOOLS)/setup-package-list $<)
+	# Install symlinks for CCACHE
+	if [ -x $@/usr/bin/ccache ]; then \
+		ln -s /usr/bin/ccache $@/usr/local/bin/gcc; \
+		ln -s /usr/bin/ccache $@/usr/local/bin/g++; \
+	fi
+	# A bit of cleanup
+	rm -f $@/Cygwin*.{bat,ico}
+
+
+$(SAGE_STARTED): $(SAGE_MAKEFILE)
+	$(SUBCYG) "$(ENV_BUILD_DIR)" "(cd $(SAGE_ROOT) && \
+	    (SAGE_NUM_THREADS=1 SAGE_INSTALL_CCACHE=yes CCACHE="$$HOME/.ccache" \
+		SAGE_FAT_BINARY=yes SAGE_ATLAS_LIB=/lib \
+		make start))"
+
+
+$(SAGE_MAKEFILE): $(SAGE_CONFIGURE)
+	$(SUBCYG) "$(ENV_BUILD_DIR)" "(cd $(SAGE_ROOT) && ./configure --with-blas=atlas)"
+
+
+$(SAGE_CONFIGURE): | $(SAGE_ROOT_BUILD)
+	$(SUBCYG) "$(ENV_BUILD_DIR)" "(cd $(SAGE_ROOT) && make configure)"
+
+
+$(SAGE_ROOT_BUILD): $(cygwin-build)
+	[ -d $(dir $(SAGE_ROOT_BUILD)) ] || mkdir $(dir $(SAGE_ROOT_BUILD))
+	$(SUBCYG) "$(ENV_BUILD_DIR)" "(cd /opt && git clone --single-branch --branch $(SAGE_BRANCH) $(SAGE_GIT) $(SAGE_ROOT))"
+
+
+$(CYGWIN_SETUP): | $(DOWNLOAD)
+	(cd $(DOWNLOAD) && wget "$(CYGWIN_SETUP_URL)")
+	chmod +x $(CYGWIN_SETUP)
+
+
+$(DIRS):
+	mkdir "$@"

build.py

@@ -0,0 +1 @@
+cygwin-sage-build.list

cygwin-sage-build-x86.list

@@ -0,0 +1 @@
+cygwin-sage-build.list