[RFH/PATCH] git-compat-util.h: do not #include <sys/param.h> by default
- From
Junio C Hamano <gitster@pobox.com>
- Date
- Dec 18, 2012, 17:35 UTC
- Message-ID
- <7v623zgt5m.fsf_-_@alter.siamese.dyndns.org>
- In-Reply-To
- <7vobhrgupr.fsf_-_@alter.siamese.dyndns.org>
Earlier we allowed platforms that lack <sys/param.h> not to include the header file from git-compat-util.h; we have included this header file since the early days back when we used MAXPATHLEN (which we no longer use) and also depended on it slurping ULONG_MAX (which we get by including stdint.h or inttypes.h these days).
It turns out that we can compile our modern codebase just file without including it on many platforms (so far, Debian, Ubuntu, MinGW, HP-Nonstop, QNX and z/OS are reported to be OK).
Let's stop including it by default, and on platforms that need it to be included, leave "make NEEDS_SYS_PARAM_H=YesPlease" as an escape hatch and ask them to report to us, so that we can find out about the real dependency and fix it in a more platform agnostic way.
Signed-off-by: Junio C Hamano <gitster@pobox.com> ---
* I'd propose queuing this on top of dm/port topic, cook it in 'next' for a while and then unleash it to the public.
Makefile | 8 +++++--- configure.ac | 6 ------ git-compat-util.h | 2 +- 3 files changed, 6 insertions(+), 10 deletions(-)
diff --git a/Makefile b/Makefile index 5cd1de0..2c1f04f 100644 --- a/Makefile +++ b/Makefile @@ -167,7 +167,9 @@ all:: # Define NO_POLL if you do not have or don't want to use poll(). # This also implies NO_SYS_POLL_H. # -# Define NO_SYS_PARAM_H if you don't have sys/param.h. +# Define NEEDS_SYS_PARAM_H if you need to include sys/param.h to compile, +# *PLEASE* REPORT to git@vger.kernel.org if your platform needs this; +# we want to know more about the issue. # # Define NO_PTHREADS if you do not have or do not want to use Pthreads. # @@ -1747,8 +1749,8 @@ endif ifdef NO_SYS_POLL_H BASIC_CFLAGS += -DNO_SYS_POLL_H endif -ifdef NO_SYS_PARAM_H - BASIC_CFLAGS += -DNO_SYS_PARAM_H +ifdef NEEDS_SYS_PARAM_H + BASIC_CFLAGS += -DNEEDS_SYS_PARAM_H endif ifdef NO_INTTYPES_H BASIC_CFLAGS += -DNO_INTTYPES_H diff --git a/configure.ac b/configure.ac index e3ab6fe..8fbb533 100644 --- a/configure.ac +++ b/configure.ac @@ -699,12 +699,6 @@ AC_CHECK_HEADER([sys/poll.h], [NO_SYS_POLL_H=UnfortunatelyYes]) GIT_CONF_SUBST([NO_SYS_POLL_H]) # -# Define NO_SYS_PARAM_H if you don't have sys/param.h -AC_CHECK_HEADER([sys/param.h], -[NO_SYS_PARAM_H=], -[NO_SYS_PARAM_H=UnfortunatelyYes]) -GIT_CONF_SUBST([NO_SYS_PARAM_H]) -# # Define NO_INTTYPES_H if you don't have inttypes.h AC_CHECK_HEADER([inttypes.h], [NO_INTTYPES_H=], diff --git a/git-compat-util.h b/git-compat-util.h index d7359ef..a88147b 100644 --- a/git-compat-util.h +++ b/git-compat-util.h @@ -104,7 +104,7 @@ #endif #include <errno.h> #include <limits.h> -#ifndef NO_SYS_PARAM_H +#ifdef NEEDS_SYS_PARAM_H #include <sys/param.h> #endif #include <sys/types.h>
-- 1.8.1.rc2.136.gb42b73a