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| author | Robert Schiele <rschiele@gmail.com> | 2008-01-24 19:34:46 +0100 |
|---|---|---|
| committer | Junio C Hamano <gitster@pobox.com> | 2008-01-24 14:01:28 -0800 |
| commit | 2600973f2c565792b71e3aed62c40efb09e08c6e (patch) | |
| tree | 9b3ad6e65bf1183825043ad9f10f7f7870584d6c /Makefile | |
| parent | cab31fa076253fcfafa7572c24e40f12a1e09ae3 (diff) | |
| download | git-2600973f2c565792b71e3aed62c40efb09e08c6e.tar.gz | |
pre-POSIX.1-2001 systems do not have <sys/select.h>
POSIX.1-2001 has declaration of select(2) in <sys/select.h>, but
in the previous version of SUS, it was declared in <sys/time.h>
(which is already included in git-compat-util.h).
This introduces NO_SYS_SELECT_H macro in the Makefile to be set
on older systems, to skip inclusion of <sys/select.h> that does
not exist on them.
We could check _POSIX_VERSION with 200112L and do this
automatically, but earlier it was reported that the approach
does not work well on some vintage of HP-UX. Other systems may
get _POSIX_VERSION itself wrong. At least for now, this manual
configuration is safer.
Signed-off-by: Robert Schiele <rschiele@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'Makefile')
| -rw-r--r-- | Makefile | 5 |
1 files changed, 5 insertions, 0 deletions
@@ -42,6 +42,8 @@ all:: # # Define NO_MKDTEMP if you don't have mkdtemp in the C library. # +# Define NO_SYS_SELECT_H if you don't have sys/select.h. +# # Define NO_SYMLINK_HEAD if you never want .git/HEAD to be a symbolic link. # Enable it on Windows. By default, symrefs are still used. # @@ -635,6 +637,9 @@ ifdef NO_UNSETENV COMPAT_CFLAGS += -DNO_UNSETENV COMPAT_OBJS += compat/unsetenv.o endif +ifdef NO_SYS_SELECT_H + BASIC_CFLAGS += -DNO_SYS_SELECT_H +endif ifdef NO_MMAP COMPAT_CFLAGS += -DNO_MMAP COMPAT_OBJS += compat/mmap.o |