configure: WARNING: texi2dvi: program not found: building pdf version of manual will not work configure: WARNING: ${top_srcdir}/build-aux/missing indent does not appear to be GNU indent; 'make indent' may not function properly misc.c:515:40: warning: passing 'unsigned char *' to parameter of type 'const char *' converts between pointers to integer types with different sign [-Wpointer-sign] esc_char = (unsigned char) strtoul (array + 1, NULL, 8); ^~~~~~~~~ /usr/include/stdlib.h:180:58: note: passing argument to parameter '__nptr' here extern unsigned long int strtoul (const char *__restrict __nptr, ^ misc.c:537:40: warning: passing 'unsigned char *' to parameter of type 'const char *' converts between pointers to integer types with different sign [-Wpointer-sign] esc_char = (unsigned char) strtoul (array + 2, NULL, 16); ^~~~~~~~~ /usr/include/stdlib.h:180:58: note: passing argument to parameter '__nptr' here extern unsigned long int strtoul (const char *__restrict __nptr, ^ 2 warnings generated. misc.c:515:40: warning: passing 'unsigned char *' to parameter of type 'const char *' converts between pointers to integer types with different sign [-Wpointer-sign] esc_char = (unsigned char) strtoul (array + 1, NULL, 8); ^~~~~~~~~ /usr/include/stdlib.h:180:58: note: passing argument to parameter '__nptr' here extern unsigned long int strtoul (const char *__restrict __nptr, ^ misc.c:537:40: warning: passing 'unsigned char *' to parameter of type 'const char *' converts between pointers to integer types with different sign [-Wpointer-sign] esc_char = (unsigned char) strtoul (array + 2, NULL, 16); ^~~~~~~~~ /usr/include/stdlib.h:180:58: note: passing argument to parameter '__nptr' here extern unsigned long int strtoul (const char *__restrict __nptr, ^ 2 warnings generated. ERROR: flex/2.6.4: Error in package() method, line 75 os.unlink(os.path.join(self.package_folder, "lib", "libfl_pic.la")) FileNotFoundError: [Errno 2] No such file or directory: '/home/conan/w/cci_PR-3873/.conan/data/flex/2.6.4/_/_/package/53bafcde5e866fbcfcaa800723d8dcba9e60fc8f/lib/libfl_pic.la'