I'm trying to build a musl version of xclock. If I can build xclock then I hope to be able to build my app which is more complicated. I'm getting the following error. /usr/bin/ld: h_errno: TLS definition in //lib/i386-linux-gnu/libc.so.6 section .tbss mismatches non-TLS definition in /home/mudd/musl/musl-1.1.8.install/lib/libc.so section .bss Here's what the make was trying to execute. It looks good to me. Do you see a problem? cd /home/mudd/musl/xclock-1.0.7 gcc \ --sysroot=/home/mudd/musl/musl-1.1.8.install/ \ -specs /home/mudd/musl/musl-1.1.8.install/lib/musl-gcc.specs \ -O3 \ -fno-stack-protector \ -std=gnu99 -Wall -Wpointer-arith -Wmissing-declarations -Wformat=2 -Wstrict-prototypes -Wmissing-prototypes -Wnested-externs -Wbad-function-cast -Wold-style-definition -Wdeclaration-after-statement -Wunused -Wuninitialized -Wshadow -Wcast-qual -Wmissing-noreturn -Wmissing-format-attribute -Wredundant-decls -Werror=implicit -Werror=nonnull -Werror=init-self -Werror=main -Werror=missing-braces -Werror=sequence-point -Werror=return-type -Werror=trigraphs -Werror=array-bounds -Werror=write-strings -Werror=address -Werror=int-to-pointer-cast -Werror=pointer-to-int-cast -fno-strict-aliasing \ -I/home/mudd/musl/autoconf-2.69.install/include \ -I/home/mudd/musl/automake-1.15.install/include \ -I/home/mudd/musl/bzip2-1.0.6.install/include \ -I/home/mudd/musl/curl-master.install/include \ -I/home/mudd/musl/fontconfig-2.11.93.install/include \ -I/home/mudd/musl/freetype-2.5.5.install/include \ -I/home/mudd/musl/freetype-2.5.5.install/include/freetype2 \ -I/home/mudd/musl/inputproto-2.3.install/include \ -I/home/mudd/musl/kbproto-1.0.6.install/include \ -I/home/mudd/musl/krb5-1.13.1.install/include \ -I/home/mudd/musl/libICE-1.0.9.install/include \ -I/home/mudd/musl/libpthread-stubs-0.1.install/include \ -I/home/mudd/musl/libSM-1.2.2.install/include \ -I/home/mudd/musl/libtool-2.4.install/include \ -I/home/mudd/musl/libX11-1.6.3.install/include \ -I/home/mudd/musl/libXau-1.0.8.install/include \ -I/home/mudd/musl/libXaw-1.0.12.install/include \ -I/home/mudd/musl/libxcb-1.11.install/include \ -I/home/mudd/musl/libXext-1.3.3.install/include \ -I/home/mudd/musl/libXft-2.3.2.install/include \ -I/home/mudd/musl/libxkbfile-1.0.8.install/include \ -I/home/mudd/musl/libxml2-2.9.2.install/include \ -I/home/mudd/musl/libxml2-2.9.2.install/include/libxml2 \ -I/home/mudd/musl/libxml2-2.9.2.install/include/libxml2/ \ -I/home/mudd/musl/libXmu-1.1.2.install/include \ -I/home/mudd/musl/libXpm-3.5.11.install/include \ -I/home/mudd/musl/libXrender-0.9.8.install/include \ -I/home/mudd/musl/libxslt-1.1.28.install/include \ -I/home/mudd/musl/libXt-1.1.4.install/include \ -I/home/mudd/musl/musl-1.1.8.install/include \ -I/home/mudd/musl/ncurses-5.9.install/include \ -I/home/mudd/musl/ncurses-5.9.install/include/ncurses/ \ -I/home/mudd/musl/openssl-1.0.2a.install/include \ -I/home/mudd/musl/postgresql-9.4.1.install/include \ -I/home/mudd/musl/Python-2.7.9.install/include \ -I/home/mudd/musl/Python-2.7.9.install/include/python2.7/ \ -I/home/mudd/musl/readline-6.3.install/include \ -I/home/mudd/musl/renderproto-0.11.install/include \ -I/home/mudd/musl/sqlite-autoconf-3080803.install/include \ -I/home/mudd/musl/util-macros-1.19.0.install/include \ -I/home/mudd/musl/xcb-proto-1.11.install/include \ -I/home/mudd/musl/xextproto-7.3.0.install/include \ -I/home/mudd/musl/xproto-7.0.27.install/include \ -I/home/mudd/musl/xtrans-1.3.5.install/include \ -I/home/mudd/musl/zlib-1.2.8.install/include \ -L/home/mudd/musl/autoconf-2.69.install/lib \ -L/home/mudd/musl/automake-1.15.install/lib \ -L/home/mudd/musl/bzip2-1.0.6.install/lib \ -L/home/mudd/musl/curl-master.install/lib \ -L/home/mudd/musl/fontconfig-2.11.93.install/lib \ -L/home/mudd/musl/freetype-2.5.5.install/lib \ -L/home/mudd/musl/inputproto-2.3.install/lib \ -L/home/mudd/musl/kbproto-1.0.6.install/lib \ -L/home/mudd/musl/krb5-1.13.1.install/lib \ -L/home/mudd/musl/libICE-1.0.9.install/lib \ -L/home/mudd/musl/libpthread-stubs-0.1.install/lib \ -L/home/mudd/musl/libSM-1.2.2.install/lib \ -L/home/mudd/musl/libtool-2.4.install/lib \ -L/home/mudd/musl/libX11-1.6.3.install/lib \ -L/home/mudd/musl/libXau-1.0.8.install/lib \ -L/home/mudd/musl/libXaw-1.0.12.install/lib \ -L/home/mudd/musl/libxcb-1.11.install/lib \ -L/home/mudd/musl/libXext-1.3.3.install/lib \ -L/home/mudd/musl/libXft-2.3.2.install/lib \ -L/home/mudd/musl/libxkbfile-1.0.8.install/lib \ -L/home/mudd/musl/libxml2-2.9.2.install/lib \ -L/home/mudd/musl/libXmu-1.1.2.install/lib \ -L/home/mudd/musl/libXpm-3.5.11.install/lib \ -L/home/mudd/musl/libXrender-0.9.8.install/lib \ -L/home/mudd/musl/libxslt-1.1.28.install/lib \ -L/home/mudd/musl/libXt-1.1.4.install/lib \ -L/home/mudd/musl/musl-1.1.8.install/lib \ -L/home/mudd/musl/ncurses-5.9.install/lib \ -L/home/mudd/musl/openssl-1.0.2a.install/lib \ -L/home/mudd/musl/postgresql-9.4.1.install/lib \ -L/home/mudd/musl/Python-2.7.9.install/lib \ -L/home/mudd/musl/readline-6.3.install/lib \ -L/home/mudd/musl/renderproto-0.11.install/lib \ -L/home/mudd/musl/sqlite-autoconf-3080803.install/lib \ -L/home/mudd/musl/util-macros-1.19.0.install/lib \ -L/home/mudd/musl/xcb-proto-1.11.install/lib \ -L/home/mudd/musl/xextproto-7.3.0.install/lib \ -L/home/mudd/musl/xproto-7.0.27.install/lib \ -L/home/mudd/musl/xtrans-1.3.5.install/lib \ -L/home/mudd/musl/zlib-1.2.8.install/lib \ -o xclock Clock.o xclock.o \ -lX11 \ -lXaw7 \ -lXft \ -lxkbfile \ -lXmu \ -lXrender \ -lXt