Add musl build script

.gitignore

@@ -54,3 +54,6 @@ callgrind.out.*
 
 # Language Servers
 /.cache/clangd/
+
+# musl build directory
+/scripts/musl_static_builddir/

scripts/build_static_musl.sh

@@ -0,0 +1,149 @@
+#!/bin/sh
+
+set -eu
+
+
+if [ $# -ne 1 ] || [ "x$1" != "xagree-download" ]; then
+    echo "This script needs to download ncurses and lm-sensors from"
+    echo " https://ftp.gnu.org/pub/gnu/ncurses/"
+    echo "and"
+    echo " https://github.com/lm-sensors/lm-sensors/archive/"
+    echo ""
+    echo "Call with \"agree-download\" to continue."
+    exit 1;
+fi
+
+
+MUSL_CFLAGS=${CFLAGS:-"-fstack-protector-strong -fstack-clash-protection -D_FORTIFY_SOURCE=3 -g -O3 -flto=auto -ffat-lto-objects -ffast-math -fno-finite-math-only -Wno-error=null-dereference"}
+# TODO: ncurses:
+#    scripts/musl_static_builddir/ncurses-installdir/include/ncursesw/term.h:756:39: error: type of ‘cur_term’ does not match original declaration [-Werror=lto-type-mismatch]
+#      756 | extern NCURSES_EXPORT_VAR(TERMINAL *) cur_term;
+#          |                                       ^
+#    scripts/musl_static_builddir/ncurses-6.4/ncurses/../ncurses/./tinfo/lib_cur_term.c:77:32: note: ‘cur_term’ was previously declared here
+#       77 | NCURSES_EXPORT_VAR(TERMINAL *) cur_term = 0;
+#          |                                ^
+MUSL_CFLAGS="${MUSL_CFLAGS} -Wno-error=lto-type-mismatch"
+MUSL_LDFLAGS=${LDFLAGS:-"-Wl,-z,relro,-z,now,-z,defs,--as-needed"}
+
+
+message()
+{
+    echo ""
+    echo "[+]"
+    echo "[+] $1"
+    echo "[+]"
+    echo ""
+}
+
+SCRIPT=$(readlink -f "$0")
+SCRIPTDIR=$(dirname "$SCRIPT")
+
+cd "${SCRIPTDIR}" || exit
+
+mkdir -p musl_static_builddir/
+
+cd musl_static_builddir/ || exit
+
+
+NCURSES_VERSION=6.4
+NCURSES_FILE=ncurses-${NCURSES_VERSION}.tar.gz
+
+if ! [ -e ${NCURSES_FILE} ]; then
+    message "Downloading ncurses v${NCURSES_VERSION}..."
+    wget https://ftp.gnu.org/pub/gnu/ncurses/${NCURSES_FILE}
+else
+    message "Using cached ncurses v${NCURSES_VERSION}"
+fi
+
+tar xf ${NCURSES_FILE}
+
+cd ncurses-${NCURSES_VERSION}/ || exit
+
+NCURSES_INSTALL_DIR=${SCRIPTDIR}/musl_static_builddir/ncurses-installdir
+
+if ! [ -e .htop_build_stamp ]; then
+    message "Configuring ncurses ..."
+    ./configure CC=musl-gcc \
+        CFLAGS="${MUSL_CFLAGS} -Wall -Wextra" \
+        LDFLAGS="${MUSL_LDFLAGS}" \
+        --prefix="${NCURSES_INSTALL_DIR}" \
+        --without-cxx \
+        --without-cxx-binding \
+        --without-ada \
+        --without-manpages \
+        --without-progs \
+        --without-tack \
+        --without-tests \
+        --without-curses-h \
+        --without-pkg-config \
+        --without-shared \
+        --without-debug \
+        --without-develop \
+        --without-dlsym \
+        --without-gpm \
+        --without-sysmouse \
+        --enable-widec \
+        --with-default-terminfo-dir=/usr/share/terminfo \
+        --with-terminfo-dirs=/usr/share/terminfo:/lib/terminfo:/usr/local/share/terminfo \
+        --with-fallbacks="screen linux vt100 xterm"
+
+    message "Building ncurses ..."
+    make clean
+    make -j "$(nproc)"
+
+    touch .htop_build_stamp
+else
+    message "Using previously build ncurses"
+fi
+
+message "Installing ncurses ..."
+make install.libs -j "$(nproc)"
+
+
+cd ../ || exit
+
+
+LMSENSORS_VERSION=3-6-0
+LMSENSORS_FILE=V${LMSENSORS_VERSION}.tar.gz
+
+if ! [ -e ${LMSENSORS_FILE} ]; then
+    message "Downloading lm-sensors v${LMSENSORS_VERSION}..."
+    wget https://github.com/lm-sensors/lm-sensors/archive/${LMSENSORS_FILE}
+else
+    message "Using cached lm-sensors v${LMSENSORS_VERSION}"
+fi
+
+tar xf ${LMSENSORS_FILE}
+
+cd lm-sensors-${LMSENSORS_VERSION}/ || exit
+
+LMSENSORS_DESTDIR=${SCRIPTDIR}/musl_static_builddir/lm-sensors-${LMSENSORS_VERSION}/installdir
+message "Installing lm-sensors ..."
+make CC=musl-gcc CFLAGS="${MUSL_CFLAGS} -Wall -Wextra" LDFLAGS="${MUSL_LDFLAGS}" DESTDIR="${LMSENSORS_DESTDIR}" install -j "$(nproc)"
+
+
+cd "${SCRIPTDIR}/../" || exit
+
+
+message "Initializing autoconf for htop ..."
+./autogen.sh
+
+message "Configuring htop ..."
+./configure CC=musl-gcc \
+            CFLAGS="${MUSL_CFLAGS} \
+                    -I${NCURSES_INSTALL_DIR}/include \
+                    -I${NCURSES_INSTALL_DIR}/include/ncursesw \
+                    -I${LMSENSORS_DESTDIR}/usr/local/include/" \
+            LDFLAGS="${MUSL_LDFLAGS} \
+                     -L${NCURSES_INSTALL_DIR}/lib \
+                     -L${LMSENSORS_DESTDIR}/usr/local/lib" \
+            PKG_CONFIG=false \
+            --enable-sensors \
+            --enable-static \
+            --enable-werror
+
+message "Building htop ..."
+make clean
+make -j "$(nproc)"
+
+message "Done"