===> Building for xst-0.9.0nb1
st build options:
CFLAGS  = -I/opt/pkg/include  -I/opt/pkg/include -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16  -I/opt/pkg/include/freetype2 -I/opt/pkg/include/libpng16 -I/opt/pkg/include -DVERSION="0.9" -D_XOPEN_SOURCE=600 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -pipe -Os -I/opt/pkg/include -I/opt/pkg/include/freetype2
LDFLAGS = -L/opt/pkg/lib -lm -lrt -lX11 -lutil -lXft -lXrender -L/opt/pkg/lib -lfontconfig -lfreetype  -L/opt/pkg/lib -lfreetype -L/opt/pkg/lib
CC      = clang
cp config.def.h config.h
clang -I/opt/pkg/include  `pkg-config --cflags fontconfig`  `pkg-config --cflags freetype2` -DVERSION=\"0.9\" -D_XOPEN_SOURCE=600 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -pipe -Os -I/opt/pkg/include -I/opt/pkg/include/freetype2 -c st.c
clang -I/opt/pkg/include  `pkg-config --cflags fontconfig`  `pkg-config --cflags freetype2` -DVERSION=\"0.9\" -D_XOPEN_SOURCE=600 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -pipe -Os -I/opt/pkg/include -I/opt/pkg/include/freetype2 -c x.c
In file included from x.c:243:
./xst.c:76:34: warning: expression which evaluates to zero treated as a null pointer constant of type 'char *' [-Wnon-literal-null-conversion]
                                font2[endchar + count + 1] = '\0';
                                                             ^~~~
1 warning generated.
clang -I/opt/pkg/include  `pkg-config --cflags fontconfig`  `pkg-config --cflags freetype2` -DVERSION=\"0.9\" -D_XOPEN_SOURCE=600 -I/opt/pkg/include -I/opt/pkg/include/freetype2 -pipe -Os -I/opt/pkg/include -I/opt/pkg/include/freetype2 -c boxdraw.c
clang -o xst st.o x.o boxdraw.o -L/opt/pkg/lib -lm -lrt -lX11 -lutil -lXft -lXrender `pkg-config --libs fontconfig`  `pkg-config --libs freetype2` -L/opt/pkg/lib
ld: library not found for -lrt
clang: error: linker command failed with exit code 1 (use -v to see invocation)
*** Error code 1

Stop.
bmake: stopped making "all" in /Users/pbulk/build/x11/xst/work/xst-0.9.0
*** Error code 1

Stop.
bmake[1]: stopped making "all" in /Volumes/data/jenkins/workspace/pkgsrc-macos-trunk-x86_64/x11/xst
*** Error code 1

Stop.
bmake: stopped making "all" in /Volumes/data/jenkins/workspace/pkgsrc-macos-trunk-x86_64/x11/xst