gcc -DHAVE_CONFIG_H -I. -I.. -std=gnu99 -Wall -Wformat -Wformat-security -Wmissing-prototypes -Wnested-externs -Wpointer-arith -Wextra -Wshadow -Wcast-align -Wwrite-strings -Waggregate-return -Wstrict-prototypes -Winline -Wredundant-decls -Wno-sign-compare -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fasynchronous-unwind-tables -Werror -I ../gnulib/lib -g -MT transform.lo -MD -MP -MF .deps/transform.Tpo -c transform.c  -fno-common -DPIC -o .libs/transform.o
cc1: warnings being treated as errors
transform.c: In function 'transform_save':
transform.c:449: warning: implicit declaration of function 'canonicalize_file_name'
transform.c:449: warning: nested extern declaration of 'canonicalize_file_name'
transform.c:449: warning: assignment makes pointer from integer without a cast