commit 7738609fe2e0c465769bbfd2763eba01855ddd98
parent 7a66082eeeb55ebef8caff1588145d99cd2d37d1
Author: Evgeny Grin (Karlson2k) <k2k@narod.ru>
Date: Sun, 26 Nov 2017 17:06:04 +0300
configure: added parameter to disable sendfile().
Diffstat:
| M | configure.ac | | | 64 | ++++++++++++++++++++++++++++++++++++++++------------------------ |
1 file changed, 40 insertions(+), 24 deletions(-)
diff --git a/configure.ac b/configure.ac
@@ -1248,11 +1248,22 @@ AC_FUNC_FSEEKO
AC_CHECK_FUNCS([lseek64 pread64 pread])
# check for various sendfile functions
-found_sendfile="no"
-AC_MSG_CHECKING([[for Linux-style sendfile(2)]])
-AC_LINK_IFELSE(
- [AC_LANG_PROGRAM(
- [[
+AC_ARG_ENABLE([sendfile],
+ [AS_HELP_STRING([--disable-sendfile],
+ [disable usage of sendfile() for HTTP connections [auto]])],
+ [],
+ [enable_sendfile="auto"])
+AS_CASE([$enable_sendfile],
+ [[auto | yes]],[[found_sendfile="no"]],
+ [[no]],[[found_sendfile="disabled"]],
+ [AC_MSG_ERROR([[unknown value specified: --enable-sendfile=$enable_sendfile]])]
+)
+AS_VAR_IF([[found_sendfile]], [["no"]],
+ [
+ AC_MSG_CHECKING([[for Linux-style sendfile(2)]])
+ AC_LINK_IFELSE(
+ [AC_LANG_PROGRAM(
+ [[
#include <sys/sendfile.h>
static void empty_func(void)
@@ -1262,25 +1273,27 @@ static void empty_func(void)
}
/* Declare again to check form match */
ssize_t sendfile(int, int, off_t*, size_t);
- ]],
- [[
- int fd1=0, fd2=2;
- off_t o = 0;
- size_t s = 5;
- ssize_t r;
- r = sendfile (fd1, fd2, &o, s);
- if (r)
- empty_func();
- ]]
- )
- ],
- [
- AC_DEFINE([HAVE_LINUX_SENDFILE], [1], [Define to 1 if you have linux-style sendfile(2).])
- found_sendfile="yes, Linux-style"
- AC_MSG_RESULT([[yes]])
- AC_CHECK_FUNCS([sendfile64])
- ],
- [AC_MSG_RESULT([[no]])
+ ]],
+ [[
+ int fd1=0, fd2=2;
+ off_t o = 0;
+ size_t s = 5;
+ ssize_t r;
+ r = sendfile (fd1, fd2, &o, s);
+ if (r)
+ empty_func();
+ ]]
+ )
+ ],
+ [
+ AC_DEFINE([HAVE_LINUX_SENDFILE], [1], [Define to 1 if you have linux-style sendfile(2).])
+ found_sendfile="yes, Linux-style"
+ AC_MSG_RESULT([[yes]])
+ AC_CHECK_FUNCS([sendfile64])
+ ],
+ [AC_MSG_RESULT([[no]])
+ ]
+ )
]
)
AS_VAR_IF([[found_sendfile]], [["no"]],
@@ -1411,6 +1424,9 @@ ssize_t sendfile(int out_fd, int in_fd,
LIBS="$SAVE_LIBS"
]
)
+AS_IF([[test "x$found_sendfile" = "xno" && test "x$enable_sendfile" = "xyes"]],
+ AC_MSG_ERROR([[sendfile() usage was requested by configure parameter, but no usable sendfile() function is detected]])
+)
# optional: have error messages ?
AC_MSG_CHECKING([[whether to generate error messages]])
