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Remove some configure header-file checks that we weren't really using.

We had some AC_CHECK_HEADER tests that were really wastes of cycles,
because the code proceeded to #include those headers unconditionally
anyway, in all or a large majority of cases.  The lack of complaints
shows that those headers are available on every platform of interest,
so we might as well let configure run a bit faster by not probing
those headers at all.

I suspect that some of the tests I left alone are equally useless, but
since all the existing #includes of the remaining headers are properly
guarded, I didn't touch them.
This commit is contained in:
Tom Lane
2017-02-25 18:10:09 -05:00
parent 9e3755ecb2
commit 2bd7f85796
9 changed files with 12 additions and 86 deletions

View File

@@ -14,9 +14,6 @@ dnl #define ACCEPT_TYPE_ARG1 int
dnl #define ACCEPT_TYPE_ARG2 struct sockaddr *
dnl #define ACCEPT_TYPE_ARG3 socklen_t
dnl
dnl This macro requires AC_CHECK_HEADERS to have already verified the
dnl presence or absence of sys/types.h and sys/socket.h.
dnl
dnl NOTE: This is just a modified version of the AC_FUNC_SELECT_ARGTYPES
dnl macro. Credit for that one goes to David MacKenzie et. al.
dnl
@@ -51,12 +48,8 @@ AC_DEFUN([AC_FUNC_ACCEPT_ARGTYPES],
for ac_cv_func_accept_arg2 in 'struct sockaddr *' 'const struct sockaddr *' 'void *'; do
for ac_cv_func_accept_arg3 in 'int' 'size_t' 'socklen_t' 'unsigned int' 'void'; do
AC_COMPILE_IFELSE([AC_LANG_SOURCE(
[#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_SYS_SOCKET_H
[#include <sys/types.h>
#include <sys/socket.h>
#endif
extern $ac_cv_func_accept_return accept ($ac_cv_func_accept_arg1, $ac_cv_func_accept_arg2, $ac_cv_func_accept_arg3 *);])],
[ac_not_found=no; break 4], [ac_not_found=yes])
done

View File

@@ -111,8 +111,12 @@ fi
AC_DEFUN([PGAC_UNION_SEMUN],
[AC_CHECK_TYPES([union semun], [], [],
[#include <sys/types.h>
#ifdef HAVE_SYS_IPC_H
#include <sys/ipc.h>
#include <sys/sem.h>])])# PGAC_UNION_SEMUN
#endif
#ifdef HAVE_SYS_SEM_H
#include <sys/sem.h>
#endif])])# PGAC_UNION_SEMUN
# PGAC_STRUCT_SOCKADDR_UN
@@ -135,9 +139,7 @@ AC_DEFUN([PGAC_STRUCT_SOCKADDR_UN],
AC_DEFUN([PGAC_STRUCT_SOCKADDR_STORAGE],
[AC_CHECK_TYPES([struct sockaddr_storage], [], [],
[#include <sys/types.h>
#ifdef HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif
])])# PGAC_STRUCT_SOCKADDR_STORAGE
# PGAC_STRUCT_SOCKADDR_STORAGE_MEMBERS
@@ -154,9 +156,7 @@ AC_DEFUN([PGAC_STRUCT_SOCKADDR_STORAGE_MEMBERS],
struct sockaddr_storage.__ss_len,
struct sockaddr.sa_len], [], [],
[#include <sys/types.h>
#ifdef HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif
])])# PGAC_STRUCT_SOCKADDR_STORAGE_MEMBERS