Merge build scripts together

The platform is detected at runtime, and the next steps are adjusted
accordingly.

build.sh

@@ -0,0 +1,67 @@
+#!/bin/bash
+
+set -e # exit if a command fails
+set -o pipefail # Will return the exit status of make if it fails
+
+CFLAGS_COMMON="-O0 -g -DXBOX=1" # Compilation flags for all platforms
+POST_BUILD=""
+
+package_windows() { # Script to prepare the windows exe
+    mkdir -p dist
+    cp i386-softmmu/qemu-system-i386.exe dist/xqemu.exe
+    cp i386-softmmu/qemu-system-i386w.exe dist/xqemuw.exe
+    python2 ./get_deps.py dist/xqemu.exe dist
+    strip dist/xqemu.exe
+    strip dist/xqemuw.exe
+}
+
+case "$(uname -s)" in # adjust compilation option based on platform
+    Linux)
+        echo "Compiling for Linux..."
+        CFLAGS="-march=native -Wno-error=redundant-decls -Wno-error=unused-but-set-variable"
+        CONFIGURE="--enable-kvm --disable-xen --disable-werror"
+        ;;
+    Darwin)
+        echo "Compiling for MacOS..."
+        CFLAGS="-march=native"
+        CONFIGURE="--disable-cocoa"
+        ;;
+    CYGWIN*|MINGW*|MSYS*)
+        echo "Compiling for Windows..."
+        CFLAGS="-Wno-error"
+        CONFIGURE="--python=python2 --disable-cocoa --disable-opengl"
+        POST_BUILD="package_windows" # set the above function to be called after build
+        ;;
+    *)
+        echo "Could not detect OS $(uname -s), aborting."
+        exit -1
+        ;;
+esac
+
+set -x # Print commands from now on
+
+./configure \
+	--enable-debug \
+	--extra-cflags="$CFLAGS_COMMON $CFLAGS" \
+	$CONFIGURE \
+    --target-list=i386-softmmu \
+	--enable-sdl \
+	--with-sdlabi=2.0 \
+	--disable-curl \
+	--disable-vnc \
+	--disable-docs \
+	--disable-tools \
+	--disable-guest-agent \
+	--disable-tpm \
+	--disable-live-block-migration \
+	--disable-replication \
+	--disable-capstone \
+	--disable-fdt \
+	--disable-libiscsi \
+	--disable-spice \
+	--disable-user \
+
+time make -j4 2>&1 | tee build.log
+
+$POST_BUILD # call post build functions
+

build_linux.sh

@@ -1,31 +0,0 @@
-#!/bin/bash
-
-set -e # exit if a command fails
-set -x # Print commands
-set -o pipefail # Will return the exit status of make if it fails
-
-./configure \
-	--enable-debug \
-	--extra-cflags="-march=native -g -O0 -Wno-error=redundant-decls -Wno-error=unused-but-set-variable -DXBOX=1" \
-	--disable-werror \
-	--target-list=i386-softmmu \
-	--enable-sdl \
-	--enable-kvm \
-	--disable-xen \
-	--with-sdlabi=2.0 \
-	--disable-curl \
-	--disable-vnc \
-	--disable-docs \
-	--disable-tools \
-	--disable-guest-agent \
-	--disable-tpm \
-	--disable-live-block-migration \
-	--disable-replication \
-	--disable-capstone \
-	--disable-fdt \
-	--disable-libiscsi \
-	--disable-spice \
-	--disable-user \
-
-time make -j4 2>&1 | tee build.log
-

build_macos.sh

@@ -1,28 +0,0 @@
-#!/bin/bash
-
-set -e # exit if a command fails
-set -x # Print commands
-set -o pipefail # Will return the exit status of make if it fails
-
-./configure \
-	--enable-debug \
-	--extra-cflags="-march=native -g -O0 -DXBOX=1" \
-	--target-list=i386-softmmu \
-	--enable-sdl \
-	--disable-cocoa \
-	--with-sdlabi=2.0 \
-	--disable-curl \
-	--disable-vnc \
-	--disable-docs \
-	--disable-tools \
-	--disable-guest-agent \
-	--disable-tpm \
-	--disable-live-block-migration \
-	--disable-replication \
-	--disable-capstone \
-	--disable-fdt \
-	--disable-libiscsi \
-	--disable-spice \
-	--disable-user \
-
-time make -j4 2>&1 | tee build.log

build_windows.sh

@@ -1,37 +0,0 @@
-#!/bin/bash
-
-set -e # exit if a command fails
-set -x # Print commands
-set -o pipefail # Will return the exit status of make if it fails
-
-./configure \
-	--python=python2 \
-	--enable-debug \
-	--extra-cflags="-g -O0 -Wno-error -DXBOX=1" \
-	--target-list=i386-softmmu \
-	--enable-sdl \
-	--disable-cocoa \
-	--with-sdlabi=2.0 \
-	--disable-curl \
-	--disable-vnc \
-	--disable-docs \
-	--disable-tools \
-	--disable-guest-agent \
-	--disable-tpm \
-	--disable-live-block-migration \
-	--disable-replication \
-	--disable-capstone \
-	--disable-fdt \
-	--disable-libiscsi \
-	--disable-spice \
-	--disable-user \
-	--disable-opengl \
-
-time make -j4 2>&1 | tee build.log
-
-mkdir -p dist
-cp i386-softmmu/qemu-system-i386.exe dist/xqemu.exe
-cp i386-softmmu/qemu-system-i386w.exe dist/xqemuw.exe
-python2 ./get_deps.py dist/xqemu.exe dist
-strip dist/xqemu.exe
-strip dist/xqemuw.exe