update tradcpp to 0.5.3

When system calls indicate an error they return -1, not some arbitrary
value < 0. errno is only updated in this case. Change all (most?)
callers of syscalls to follow this better, and let's see if this strictness
helps us in the future.

update tradcpp to 0.5.2
ok miko@ bcallah@ deraadt@

eliminate strcpy & strcat, by using strlcpy, strlcat or snprintf where
suitable.
ok jsg

Add support for using - as shorthand for stdin/stdout in tradcpp.

When looking into switching the /usr/bin/cpp wrapper to
tradcpp I came across "| ${CPP} ${CPPFLAGS} -" in usr.bin/which.

gcc documents this behaviour for cpp here:
https://gcc.gnu.org/onlinedocs/cpp/Invocation.html

Versions of the John F. Reiser derived cpp in 32V and CSRG SCCS
accept this usage as well, as does the cpp in PCC.

Add tradcpp 0.4, a standalone traditional whitespace preserving cpp
by David A. Holland of NetBSD.

When system calls indicate an error they return -1, not some arbitrary
value < 0. errno is only updated in this case. Change all (most?)
callers of syscalls to follow this better, and let's see if this strictness
helps us in the future.

update tradcpp to 0.5.2
ok miko@ bcallah@ deraadt@

eliminate strcpy & strcat, by using strlcpy, strlcat or snprintf where
suitable.
ok jsg

Add support for using - as shorthand for stdin/stdout in tradcpp.

When looking into switching the /usr/bin/cpp wrapper to
tradcpp I came across "| ${CPP} ${CPPFLAGS} -" in usr.bin/which.

gcc documents this behaviour for cpp here:
https://gcc.gnu.org/onlinedocs/cpp/Invocation.html

Versions of the John F. Reiser derived cpp in 32V and CSRG SCCS
accept this usage as well, as does the cpp in PCC.

Add tradcpp 0.4, a standalone traditional whitespace preserving cpp
by David A. Holland of NetBSD.

update tradcpp to 0.5.2
ok miko@ bcallah@ deraadt@

eliminate strcpy & strcat, by using strlcpy, strlcat or snprintf where
suitable.
ok jsg

Add support for using - as shorthand for stdin/stdout in tradcpp.

When looking into switching the /usr/bin/cpp wrapper to
tradcpp I came across "| ${CPP} ${CPPFLAGS} -" in usr.bin/which.

gcc documents this behaviour for cpp here:
https://gcc.gnu.org/onlinedocs/cpp/Invocation.html

Versions of the John F. Reiser derived cpp in 32V and CSRG SCCS
accept this usage as well, as does the cpp in PCC.

Add tradcpp 0.4, a standalone traditional whitespace preserving cpp
by David A. Holland of NetBSD.

eliminate strcpy & strcat, by using strlcpy, strlcat or snprintf where
suitable.
ok jsg

Add support for using - as shorthand for stdin/stdout in tradcpp.

When looking into switching the /usr/bin/cpp wrapper to
tradcpp I came across "| ${CPP} ${CPPFLAGS} -" in usr.bin/which.

gcc documents this behaviour for cpp here:
https://gcc.gnu.org/onlinedocs/cpp/Invocation.html

Versions of the John F. Reiser derived cpp in 32V and CSRG SCCS
accept this usage as well, as does the cpp in PCC.

Add tradcpp 0.4, a standalone traditional whitespace preserving cpp
by David A. Holland of NetBSD.