Bruno Haible <br...@clisp.org> writes: > Simon Josefsson wrote: >> It was configured with: >> >> CC=c89 CFLAGS="-D_POSIX_SOURCE -I/usr/local/include" ... > > Bingo. On many platforms, the _POSIX_SOURCE macro has the effect of > *hiding* declarations, not of enabling them: > > $ uname -srv > IRIX64 6.5 10060437 > $ cat foo.c > #include <string.h> > $ cc -E foo.c | grep strdup > extern char *strdup(const char *); > $ c89 -E foo.c | grep strdup > extern char *strdup(const char *); > $ c89 -D_POSIX_SOURCE -E foo.c | grep strdup > > Autoconf's and Gnulib's 'extensions' macro does a good job at enabling > most useful declarations, but it cannot prevail against a user who specifies > _POSIX_SOURCE.
Indeed. I have reverted the strdup and select patch, and I'll treat this as a user error. Btw, is there any best practice on how to document reverted patches in ChangeLog for gnulib, if at all? /Simon
