Build of linux_logo with musl toolchain

# [tuscan]
# Server = file:///var/cache/pacman/pkg/

# :: Synchronizing package databases...
# downloading tuscan.db...

# /sysroot/lib
# /sysroot/share
# /sysroot/bin
# /sysroot/include
# /sysroot/libexec

# ==> Making package: linux_logo 5.11-3 (Wed Apr 5 01:45:36 UTC 2017)
# ==> Checking runtime dependencies...
# ==> Checking buildtime dependencies...
# ==> WARNING: Using existing $srcdir/ tree
# ==> Starting build()...
# /usr/sbin/xgettext
# /usr/sbin/gcc
#
# CONFIGURING LINUX_LOGO
# Detected Architecture: x86_64
# Detected Operating System: Linux
# Install prefix: /usr
# Install program: /usr/sbin/install
# xgettext: xgettext
# libsysinfo: libsysinfo-0.2.2
# C Compiler : gcc
# CFLAGS : -Wall -O2
#
# /usr/sbin/gcc
# /sysroot/bin/ar
#
# CONFIGURING LIBSYSINFO
# Detected Architecture: x86_64
# Detected Operating System: Linux
# C Compiler : gcc
# AR : ar
# CFLAGS : -Wall -O2
#
#
# If cross compiling set the CROSS and ARCH variables
#
# Done configuring, run 'make'
#
# gcc -Wall -O2 -Ilibsysinfo-0.2.2 -c parse_logos.c
# gcc -Wall -O2 -Ilibsysinfo-0.2.2 -o load_logo_native.o -c load_logo.c
# gcc -Wall -O2 -Ilibsysinfo-0.2.2 -c load_logo.c
# cd libsysinfo-0.2.2 && make
# make[1]: Entering directory '/tmp/linux_logo/src/linux_logo-5.11/libsysinfo-0.2.2'
# cd all && make
# make[2]: Entering directory '/tmp/linux_logo/src/linux_logo-5.11/libsysinfo-0.2.2/all'
# gcc -Wall -O2 -I.. -c bogomips.c
# cd po && make
# gcc -Wall -O2 -I.. -c fix_mhz.c
# gcc -Wall -O2 -I.. -c parsing.c
# make[1]: Entering directory '/tmp/linux_logo/src/linux_logo-5.11/po'
# xgettext --default-domain=linux_logo --add-comments --keyword=_ --keyword=S_ ../*.c ../*.h;
# gcc -Wall -O2 -I.. -c sysinfo_common.c
# msgfmt -o da.mo da.po
# if cmp -s linux_logo.po linux_logo.pot; then \
# rm -f linux_logo.po; \
# else \
# mv linux_logo.po linux_logo.pot; \
# fi
# msgfmt -o de.mo de.po
# gcc -Wall -O2 -I.. -c uname.c
# gcc -o parse_logos parse_logos.o load_logo_native.o
# msgfmt -o es.mo es.po
# msgfmt -o fr.mo fr.po
# msgfmt -o nb.mo nb.po
# msgfmt -o nl.mo nl.po
# ./parse_logos
# ./parse_logos: error while loading shared libraries: /usr/lib/libc.so: invalid ELF header
# make: *** [Makefile:76: load_logos.h] Error 127
# make: *** Waiting for unfinished jobs....
# msgfmt -o it.mo it.po
# msgfmt -o pl.mo pl.po
# msgfmt -o pt_BR.mo pt_BR.po
# msgfmt -o ru.mo ru.po
# msgfmt -o sv.mo sv.po
# msgfmt -o uk.mo uk.po
# make[2]: Leaving directory '/tmp/linux_logo/src/linux_logo-5.11/libsysinfo-0.2.2/all'
# msgfmt -o zh_TW.mo zh_TW.po
# cd Linux && make
# for n in da.mo de.mo es.mo fr.mo nb.mo nl.mo it.mo pl.mo pt_BR.mo ru.mo sv.mo uk.mo zh_TW.mo; do \
# l=`basename $n .mo`; \
# l=$l".po"; \
# mv -f $l $l".bac"; \
# msgmerge -o $l $l".bac" linux_logo.pot; \
# done
# make[2]: Entering directory '/tmp/linux_logo/src/linux_logo-5.11/libsysinfo-0.2.2/Linux'
# gcc -Wall -O2 -o cpuinfo.o -c cpuinfo_x86.c
# gcc -Wall -O2 -c sysinfo_linux.c
# ........cpuinfo_x86.c:477:8: warning: comparison of array 'plain_model' not equal to a null pointer is always true [-Wtautological-pointer-compare]
# if (plain_model!=NULL) {
# ^~~~~~~~~~~ ~~~~
# sysinfo_linux.c:22:9: warning: variable 'uptime_seconds' is used uninitialized whenever 'if' condition is false [-Wsometimes-uninitialized]
# if (fff!=NULL) {
# ^~~~~~~~~
# sysinfo_linux.c:27:12: note: uninitialized use occurs here
# return uptime_seconds;
# ^~~~~~~~~~~~~~
# sysinfo_linux.c:22:5: note: remove the 'if' if its condition is always true
# if (fff!=NULL) {
# ^~~~~~~~~~~~~~~
# sysinfo_linux.c:18:25: note: initialize the variable 'uptime_seconds' to silence this warning
# float uptime_seconds;
# ^
# = 0.0
# ........ done.
# .......... done.
# 1 warning generated.
# .......... done.
# ........... done.
# ...........1 warning generated.
# ...make[2]: Leaving directory '/tmp/linux_logo/src/linux_logo-5.11/libsysinfo-0.2.2/Linux'
# ar crus libsysinfo.a ./Linux/*.o ./all/*.o
# done.
# /r: `u' modifier ignored since `D' is the default (see `U')
# ............... done.
# make[1]: Leaving directory '/tmp/linux_logo/src/linux_logo-5.11/libsysinfo-0.2.2'
# ............... done.
# ............... done.
# ............... done.
# .......... done.
# ........ done.
# ........... done.
# ..... done.
# make[1]: Leaving directory '/tmp/linux_logo/src/linux_logo-5.11/po'
# ==> ERROR: A failure occurred in build().
# Aborting...