Complete refactoring of the build system to happen in Alpine chroot

This new build results in completely static binaries of the toolchain
itself, making them portable across any system.

Author: jaromil

.releaserc

@@ -1,5 +1,5 @@
 {
-  "repositoryUrl": "git@github.com:dyne/musl-dyne.git",
+  "repositoryUrl": "git@github.com:dyne/musl.git",
   "plugins": [
     "@semantic-release/commit-analyzer",
     "@semantic-release/release-notes-generator",

GNUmakefile

@@ -0,0 +1,31 @@
+ARCH ?= x86_64-linux-musl
+
+all: gcc libs strip
+
+chroot: /alpine/enter-chroot
+
+gcc: dyne/gcc-musl/bin/$(ARCH)-gcc
+libs: dyne/$(ARCH)/lib/libssl.a
+
+/alpine/enter-chroot:
+	./alpine-chroot-install -a x86_64 -d /alpine \
+		-p "bash make cmake gcc build-base curl patch gawk ccache perl rsync xz samurai coreutils-fmt"
+
+dyne/gcc-musl/bin/$(ARCH)-gcc:
+	cd gcc-musl/sources && bash download_from_dyne.sh
+	$(MAKE) -C gcc-musl -j`nproc`
+	$(MAKE) -C gcc-musl install PREFIX=$(CURDIR)/dyne/gcc-musl
+
+dyne/$(ARCH)/lib/libssl.a:
+	$(MAKE) -C libs         ARCH=$(ARCH) PREFIX=$(CURDIR)/dyne/$(ARCH)
+
+strip:
+	rm -f dyne/bin/*-lto-dump
+	rm -rf dyne/share
+	cat README.md | awk '{gsub(/\[[^][]+\]\([^()]+\)/, gensub(/\[([^][]+)\]\([^()]+\)/, "\\1", "g")); print}' | fmt -w 72 | tee dyne/$(ARCH)/README.txt > dyne/gcc-musl/README.txt
+	cp settings.cmake dyne/gcc-musl
+
+clean:
+	rm -rf dyne
+	$(MAKE) -C gcc-musl clean
+	$(MAKE) -C libs clean

alpine-chroot-install

@@ -0,0 +1,18 @@
+ARCH ?= x86_64-linux-musl
+PREFIX ?= $(shell dirname $(CURDIR))/dyne/gcc-musl
+
+TARGET = $(ARCH)
+OUTPUT = $(PREFIX)
+GCC_VER = 15.1.0
+BINUTILS_VER = 2.44
+LINUX_VER = 5.8.5
+COMMON_CONFIG += CFLAGS="-g0 -Os -march=x86-64-v2"
+COMMON_CONFIG += CXXFLAGS="-g0 -Os -march=x86-64-v2"
+# -march=x86-64-v2 -march=haswell
+COMMON_CONFIG += LDFLAGS="-s"
+COMMON_CONFIG += CC="ccache gcc -static"
+COMMON_CONFIG += CXX="ccache g++ -static"
+COMMON_CONFIG += --disable-nls --disable-libmudflap --disable-libsanitizer --disable-lto
+# --disable-libquadmath --disable-decimal-float --disable-libitm
+# --disable-fixed-point --disable-lto
+GCC_CONFIG += --enable-languages=c,c++