Do a better job of running check-reqs

Makefile

@@ -39,11 +39,11 @@ ENDRM = util/mk-end-rm
 EMUARGS = -kernel toaruos-kernel -m 256 -initrd toaruos-initrd -append "vid=qemu hdd" -serial stdio -vga std -hda toaruos-disk.img
 EMUKVM  = -enable-kvm
 
-.PHONY: all check-toolchain system clean clean-once clean-hard clean-soft clean-docs clean-bin clean-aux clean-core update-version install run docs utils
+.PHONY: all system clean clean-once clean-hard clean-soft clean-docs clean-bin clean-aux clean-core update-version install run docs utils
 .SECONDARY: 
 
 all: .passed system docs utils tags
-system: toaruos-initrd toaruos-disk.img toaruos-kernel
+system: .passed toaruos-initrd toaruos-disk.img toaruos-kernel
 
 install: system
 	@${BEG} "CP" "Installing to /boot..."
@@ -63,15 +63,12 @@ utils: ${UTILITIES}
 	@util/check-reqs > /dev/null
 	@touch .passed
 
-check-toolchain:
-	@util/install-toolchain.sh
-
 #################
 # Documentation #
 #################
 docs: docs/core.pdf
 
-docs/core.pdf: docs/*.tex 
+docs/core.pdf: docs/*.tex
 	@${BEG} "docs" "Generating documentation..."
 	@pdflatex -draftmode -halt-on-error -output-directory docs/ docs/core.tex > /dev/null ${ERRORS}
 	@makeindex -q docs/*.idx ${ERRORS}
@@ -81,7 +78,7 @@ docs/core.pdf: docs/*.tex
 ################
 #    Kernel    #
 ################
-toaruos-kernel: kernel/start.o kernel/link.ld kernel/main.o ${SUBMODULES}
+toaruos-kernel: .passed kernel/start.o kernel/link.ld kernel/main.o ${SUBMODULES}
 	@${BEG} "LD" "$<"
 	@${LD} -T kernel/link.ld -o toaruos-kernel kernel/*.o ${SUBMODULES} ${ERRORS}
 	@${END} "LD" "$<"
@@ -102,7 +99,7 @@ kernel/sys/version.o: kernel/*/*.c kernel/*.c
 ################
 #   Ram disk   #
 ################
-toaruos-initrd: initrd/boot/kernel
+toaruos-initrd: .passed initrd/boot/kernel
 	@${BEG} "initrd" "Generating initial RAM disk"
 	@# Get rid of the old one
 	@-rm -f toaruos-initrd

README.md

@@ -22,7 +22,7 @@ Clone the git repository and run:
 
     # Retreive the precompiled binaries:
     util/grab-binaries.sh
-    make                # to build the kernel
+    make system         # to build the kernel
     make run            # to run qemu with the proper arguments
     # Or, if you have KVM...
     make kvm            # to run qemu in KVM mode

util/check-reqs

@@ -18,6 +18,8 @@ function BAIL {
     exit 1
 }
 
+INFO "Checking for required tools (one-time check)..."
+
 if [ -z `which clang` ] ; then
     WARN "Missing clang"
     if [ -z `which gcc` ] ; then
@@ -35,3 +37,13 @@ if [ -z `which genext2fs` ] ; then
     BAIL
 fi
 
+if [ -z `which qemu` ] ; then
+    if [ -z `which qemu-system-i386` ] ; then
+        ERROR "Missing qemu"
+        INFO  "You can probably install it from a package of the same name."
+    fi
+    ERROR "qemu is installed, but not as 'qemu'"
+    INFO  "You have a version of qemu which does not provide the 'qemu' binary."
+    INFO  "You should run 'ln -s ~/bin/qemu \`which qemu-system-i386\` or similar to correct this."
+fi
+

util/install-toolchain.sh

@@ -1,27 +0,0 @@
-#!/bin/bash
-
-TOOLCHAIN=`which i686-pc-toaru-gcc`
-if [[ -n "$TOOLCHAIN" ]] ; then
-    echo "Toolchain is present at $TOOLCHAIN"
-    exit 0
-fi
-
-echo -e "\033[1mYou do not appear to have a toolchain available for とあるOS (i686-pc-toaru-gcc was not found in your path).\033[0m"
-echo -e "\033[1mI can retreive a pre-built copy of the toolchain for Linux (32-bit, approx. 300MB)\033[0m"
-echo -en "\033[1;32mWould you like me to do that?\033[0m (Y/n) "
-
-read PROMPT
-
-if [[ "$PROMPT" = "y" ]] ; then
-    echo "The toolchain will be pulled from Dropbox: http://dl.dropbox.com/u/44305966/toaru-toolchain-0.0.1.tar.gz"
-    pushd /tmp
-    wget "http://dl.dropbox.com/u/44305966/toaru-toolchain-0.0.1.tar.gz"
-    popd
-    tar -x -C util/ -f "/tmp/toaru-toolchain-0.0.1.tar.gz"
-    rm "/tmp/toaru-toolchain-0.0.1.tar.gz"
-    echo "Done!"
-    echo "You should now add \033[1;33m`pwd`/util/toaru-toolchain/bin\033[0m to your path"
-else
-    echo "I will not retreive the toolchain. Bailing..."
-    exit 1
-fi