# make
make  all-recursive
Making all in src
/bin/sh ../libtool --tag=CC --mode=link gcc  -g -O2 -fno-strict-aliasing -Wall -std=gnu99 -pedantic -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes -Wmissing-declarations -Wnested-externs -Winline -W  -fPIC -DPIC   -L/usr/local/lib  -L/usr/local/lib  -L/usr/X11R6/lib -o rrdtool   librrd.la
gcc -g -O2 -fno-strict-aliasing -Wall -std=gnu99 -pedantic -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes -Wmissing-declarations -Wnested-externs -Winline -W -fPIC -DPIC -o .libs/rrdtool  -L/usr/local/lib -L/usr/X11R6/lib -L./.libs -lrrd -lart_lgpl_2 -lpng -lz -lm -lfreetype -Wl,-rpath,/usr/local/rrdtool-1.2.23/lib -Wl,-rpath,/usr/local/lib
/usr/local/lib/librrd.so.0.0: warning: strcpy() is almost always misused, please use strlcpy()
/usr/local/lib/librrd.so.0.0: warning: sprintf() is often misused, please use snprintf()
/usr/local/lib/librrd.so.0.0: warning: strcat() is almost always misused, please use strlcat()
/usr/lib/crt0.o(.text+0xa4): In function `___start':
: undefined reference to `main'
collect2: ld returned 1 exit status
*** Error code 1

Stop in /tmp/rrdtool-1.2.23/src (line 517 of Makefile).
*** Error code 1

Stop in /tmp/rrdtool-1.2.23 (line 341 of Makefile).
*** Error code 1

Stop in /tmp/rrdtool-1.2.23 (line 248 of Makefile).