diff options
Diffstat (limited to 'ares/acinclude.m4')
-rw-r--r-- | ares/acinclude.m4 | 589 |
1 files changed, 318 insertions, 271 deletions
diff --git a/ares/acinclude.m4 b/ares/acinclude.m4 index f4f317eae..214c005e7 100644 --- a/ares/acinclude.m4 +++ b/ares/acinclude.m4 @@ -1,271 +1,318 @@ -dnl Check for how to set a socket to non-blocking state. There seems to exist
-dnl four known different ways, with the one used almost everywhere being POSIX
-dnl and XPG3, while the other different ways for different systems (old BSD,
-dnl Windows and Amiga).
-dnl
-dnl There are two known platforms (AIX 3.x and SunOS 4.1.x) where the
-dnl O_NONBLOCK define is found but does not work. This condition is attempted
-dnl to get caught in this script by using an excessive number of #ifdefs...
-dnl
-AC_DEFUN([CURL_CHECK_NONBLOCKING_SOCKET],
-[
- AC_MSG_CHECKING([non-blocking sockets style])
-
- AC_TRY_COMPILE([
-/* headers for O_NONBLOCK test */
-#include <sys/types.h>
-#include <unistd.h>
-#include <fcntl.h>
-],[
-/* try to compile O_NONBLOCK */
-
-#if defined(sun) || defined(__sun__) || defined(__SUNPRO_C) || defined(__SUNPRO_CC)
-# if defined(__SVR4) || defined(__srv4__)
-# define PLATFORM_SOLARIS
-# else
-# define PLATFORM_SUNOS4
-# endif
-#endif
-#if (defined(_AIX) || defined(__xlC__)) && !defined(_AIX4)
-# define PLATFORM_AIX_V3
-#endif
-
-#if defined(PLATFORM_SUNOS4) || defined(PLATFORM_AIX_V3) || defined(__BEOS__)
-#error "O_NONBLOCK does not work on this platform"
-#endif
- int socket;
- int flags = fcntl(socket, F_SETFL, flags | O_NONBLOCK);
-],[
-dnl the O_NONBLOCK test was fine
-nonblock="O_NONBLOCK"
-AC_DEFINE(HAVE_O_NONBLOCK, 1, [use O_NONBLOCK for non-blocking sockets])
-],[
-dnl the code was bad, try a different program now, test 2
-
- AC_TRY_COMPILE([
-/* headers for FIONBIO test */
-#include <unistd.h>
-#include <stropts.h>
-],[
-/* FIONBIO source test (old-style unix) */
- int socket;
- int flags = ioctl(socket, FIONBIO, &flags);
-],[
-dnl FIONBIO test was good
-nonblock="FIONBIO"
-AC_DEFINE(HAVE_FIONBIO, 1, [use FIONBIO for non-blocking sockets])
-],[
-dnl FIONBIO test was also bad
-dnl the code was bad, try a different program now, test 3
-
- AC_TRY_COMPILE([
-/* headers for ioctlsocket test (cygwin?) */
-#include <windows.h>
-],[
-/* ioctlsocket source code */
- int socket;
- unsigned long flags = ioctlsocket(socket, FIONBIO, &flags);
-],[
-dnl ioctlsocket test was good
-nonblock="ioctlsocket"
-AC_DEFINE(HAVE_IOCTLSOCKET, 1, [use ioctlsocket() for non-blocking sockets])
-],[
-dnl ioctlsocket didnt compile!, go to test 4
-
- AC_TRY_LINK([
-/* headers for IoctlSocket test (Amiga?) */
-#include <sys/ioctl.h>
-],[
-/* IoctlSocket source code */
- int socket;
- int flags = IoctlSocket(socket, FIONBIO, (long)1);
-],[
-dnl ioctlsocket test was good
-nonblock="IoctlSocket"
-AC_DEFINE(HAVE_IOCTLSOCKET_CASE, 1, [use Ioctlsocket() for non-blocking sockets])
-],[
-dnl Ioctlsocket didnt compile, do test 5!
- AC_TRY_COMPILE([
-/* headers for SO_NONBLOCK test (BeOS) */
-#include <socket.h>
-],[
-/* SO_NONBLOCK source code */
- long b = 1;
- int socket;
- int flags = setsockopt(socket, SOL_SOCKET, SO_NONBLOCK, &b, sizeof(b));
-],[
-dnl the SO_NONBLOCK test was good
-nonblock="SO_NONBLOCK"
-AC_DEFINE(HAVE_SO_NONBLOCK, 1, [use SO_NONBLOCK for non-blocking sockets])
-],[
-dnl test 5 didnt compile!
-nonblock="nada"
-AC_DEFINE(HAVE_DISABLED_NONBLOCKING, 1, [disabled non-blocking sockets])
-])
-dnl end of fifth test
-
-])
-dnl end of forth test
-
-])
-dnl end of third test
-
-])
-dnl end of second test
-
-])
-dnl end of non-blocking try-compile test
- AC_MSG_RESULT($nonblock)
-
- if test "$nonblock" = "nada"; then
- AC_MSG_WARN([non-block sockets disabled])
- fi
-])
-
-dnl We create a function for detecting which compiler we use and then set as
-dnl pendantic compiler options as possible for that particular compiler. The
-dnl options are only used for debug-builds.
-
-dnl This is a copy of the original found in curl's configure script. Don't
-dnl modify this one, edit the one in curl and copy it back here when that one
-dnl is changed.
-
-AC_DEFUN([CURL_CC_DEBUG_OPTS],
-[
- if test "$GCC" = "yes"; then
-
- dnl figure out gcc version!
- AC_MSG_CHECKING([gcc version])
- gccver=`$CC -dumpversion`
- num1=`echo $gccver | cut -d . -f1`
- num2=`echo $gccver | cut -d . -f2`
- gccnum=`(expr $num1 "*" 100 + $num2) 2>/dev/null`
- AC_MSG_RESULT($gccver)
-
- AC_MSG_CHECKING([if this is icc in disguise])
- AC_EGREP_CPP([^__INTEL_COMPILER], [__INTEL_COMPILER],
- dnl action if the text is found, this it has not been replaced by the
- dnl cpp
- ICC="no"
- AC_MSG_RESULT([no]),
- dnl the text was not found, it was replaced by the cpp
- ICC="yes"
- AC_MSG_RESULT([yes])
- )
-
- if test "$ICC" = "yes"; then
- dnl this is icc, not gcc.
-
- dnl ICC warnings we ignore:
- dnl * 279 warns on static conditions in while expressions
- dnl * 269 warns on our "%Od" printf formatters for curl_off_t output:
- dnl "invalid format string conversion"
-
- WARN="-wd279,269"
-
- if test "$gccnum" -gt "600"; then
- dnl icc 6.0 and older doesn't have the -Wall flag
- WARN="-Wall $WARN"
- fi
- else dnl $ICC = yes
- dnl
- WARN="-W -Wall -Wwrite-strings -pedantic -Wno-long-long -Wundef -Wpointer-arith -Wnested-externs -Winline -Wmissing-declarations -Wmissing-prototypes -Wsign-compare"
-
- dnl -Wcast-align is a bit too annoying ;-)
-
- if test "$gccnum" -ge "296"; then
- dnl gcc 2.96 or later
- WARN="$WARN -Wfloat-equal"
-
- if test "$gccnum" -gt "296"; then
- dnl this option does not exist in 2.96
- WARN="$WARN -Wno-format-nonliteral"
- fi
-
- dnl -Wunreachable-code seems totally unreliable on my gcc 3.3.2 on
- dnl on i686-Linux as it gives us heaps with false positives
- if test "$gccnum" -ge "303"; then
- dnl gcc 3.3 and later
- WARN="$WARN -Wendif-labels -Wstrict-prototypes"
- fi
- fi
-
- for flag in $CPPFLAGS; do
- case "$flag" in
- -I*)
- dnl include path
- add=`echo $flag | sed 's/^-I/-isystem /g'`
- WARN="$WARN $add"
- ;;
- esac
- done
-
- fi dnl $ICC = no
-
- CFLAGS="$CFLAGS $WARN"
-
- fi dnl $GCC = yes
-
- dnl strip off optimizer flags
- NEWFLAGS=""
- for flag in $CFLAGS; do
- case "$flag" in
- -O*)
- dnl echo "cut off $flag"
- ;;
- *)
- NEWFLAGS="$NEWFLAGS $flag"
- ;;
- esac
- done
- CFLAGS=$NEWFLAGS
-
-]) dnl end of AC_DEFUN()
-
-
-dnl This macro determines if the specified struct exists in the specified file
-dnl Syntax:
-dnl CARES_CHECK_STRUCT(headers, struct name, if found, [if not found])
-
-AC_DEFUN([CARES_CHECK_STRUCT], [
- AC_MSG_CHECKING([for struct $2])
- AC_TRY_COMPILE([$1],
- [
- struct $2 struct_instance;
- ], ac_struct="yes", ac_found="no")
- if test "$ac_struct" = "yes" ; then
- AC_MSG_RESULT(yes)
- $3
- else
- AC_MSG_RESULT(no)
- $4
- fi
-])
-
-dnl This macro determines if the specified constant exists in the specified file
-dnl Syntax:
-dnl CARES_CHECK_CONSTANT(headers, constant name, if found, [if not found])
-
-AC_DEFUN([CARES_CHECK_CONSTANT], [
- AC_MSG_CHECKING([for $2])
- AC_EGREP_CPP(VARIABLEWASDEFINED,
- [
- $1
-
- #ifdef $2
- VARIABLEWASDEFINED
- #else
- NJET
- #endif
- ], ac_constant="yes", ac_constant="no"
- )
- if test "$ac_constant" = "yes" ; then
- AC_MSG_RESULT(yes)
- $3
- else
- AC_MSG_RESULT(no)
- $4
- fi
-])
-
-
+dnl Check for how to set a socket to non-blocking state. There seems to exist +dnl four known different ways, with the one used almost everywhere being POSIX +dnl and XPG3, while the other different ways for different systems (old BSD, +dnl Windows and Amiga). +dnl +dnl There are two known platforms (AIX 3.x and SunOS 4.1.x) where the +dnl O_NONBLOCK define is found but does not work. This condition is attempted +dnl to get caught in this script by using an excessive number of #ifdefs... +dnl +AC_DEFUN([CURL_CHECK_NONBLOCKING_SOCKET], +[ + AC_MSG_CHECKING([non-blocking sockets style]) + + AC_TRY_COMPILE([ +/* headers for O_NONBLOCK test */ +#include <sys/types.h> +#include <unistd.h> +#include <fcntl.h> +],[ +/* try to compile O_NONBLOCK */ + +#if defined(sun) || defined(__sun__) || defined(__SUNPRO_C) || defined(__SUNPRO_CC) +# if defined(__SVR4) || defined(__srv4__) +# define PLATFORM_SOLARIS +# else +# define PLATFORM_SUNOS4 +# endif +#endif +#if (defined(_AIX) || defined(__xlC__)) && !defined(_AIX4) +# define PLATFORM_AIX_V3 +#endif + +#if defined(PLATFORM_SUNOS4) || defined(PLATFORM_AIX_V3) || defined(__BEOS__) +#error "O_NONBLOCK does not work on this platform" +#endif + int socket; + int flags = fcntl(socket, F_SETFL, flags | O_NONBLOCK); +],[ +dnl the O_NONBLOCK test was fine +nonblock="O_NONBLOCK" +AC_DEFINE(HAVE_O_NONBLOCK, 1, [use O_NONBLOCK for non-blocking sockets]) +],[ +dnl the code was bad, try a different program now, test 2 + + AC_TRY_COMPILE([ +/* headers for FIONBIO test */ +#include <unistd.h> +#include <stropts.h> +],[ +/* FIONBIO source test (old-style unix) */ + int socket; + int flags = ioctl(socket, FIONBIO, &flags); +],[ +dnl FIONBIO test was good +nonblock="FIONBIO" +AC_DEFINE(HAVE_FIONBIO, 1, [use FIONBIO for non-blocking sockets]) +],[ +dnl FIONBIO test was also bad +dnl the code was bad, try a different program now, test 3 + + AC_TRY_COMPILE([ +/* headers for ioctlsocket test (cygwin?) */ +#include <windows.h> +],[ +/* ioctlsocket source code */ + int socket; + unsigned long flags = ioctlsocket(socket, FIONBIO, &flags); +],[ +dnl ioctlsocket test was good +nonblock="ioctlsocket" +AC_DEFINE(HAVE_IOCTLSOCKET, 1, [use ioctlsocket() for non-blocking sockets]) +],[ +dnl ioctlsocket didnt compile!, go to test 4 + + AC_TRY_LINK([ +/* headers for IoctlSocket test (Amiga?) */ +#include <sys/ioctl.h> +],[ +/* IoctlSocket source code */ + int socket; + int flags = IoctlSocket(socket, FIONBIO, (long)1); +],[ +dnl ioctlsocket test was good +nonblock="IoctlSocket" +AC_DEFINE(HAVE_IOCTLSOCKET_CASE, 1, [use Ioctlsocket() for non-blocking sockets]) +],[ +dnl Ioctlsocket didnt compile, do test 5! + AC_TRY_COMPILE([ +/* headers for SO_NONBLOCK test (BeOS) */ +#include <socket.h> +],[ +/* SO_NONBLOCK source code */ + long b = 1; + int socket; + int flags = setsockopt(socket, SOL_SOCKET, SO_NONBLOCK, &b, sizeof(b)); +],[ +dnl the SO_NONBLOCK test was good +nonblock="SO_NONBLOCK" +AC_DEFINE(HAVE_SO_NONBLOCK, 1, [use SO_NONBLOCK for non-blocking sockets]) +],[ +dnl test 5 didnt compile! +nonblock="nada" +AC_DEFINE(HAVE_DISABLED_NONBLOCKING, 1, [disabled non-blocking sockets]) +]) +dnl end of fifth test + +]) +dnl end of forth test + +]) +dnl end of third test + +]) +dnl end of second test + +]) +dnl end of non-blocking try-compile test + AC_MSG_RESULT($nonblock) + + if test "$nonblock" = "nada"; then + AC_MSG_WARN([non-block sockets disabled]) + fi +]) + +dnl We create a function for detecting which compiler we use and then set as +dnl pendantic compiler options as possible for that particular compiler. The +dnl options are only used for debug-builds. + +dnl This is a copy of the original found in curl's configure script. Don't +dnl modify this one, edit the one in curl and copy it back here when that one +dnl is changed. + +AC_DEFUN([CURL_CC_DEBUG_OPTS], +[ + if test "$GCC" = "yes"; then + + dnl figure out gcc version! + AC_MSG_CHECKING([gcc version]) + gccver=`$CC -dumpversion` + num1=`echo $gccver | cut -d . -f1` + num2=`echo $gccver | cut -d . -f2` + gccnum=`(expr $num1 "*" 100 + $num2) 2>/dev/null` + AC_MSG_RESULT($gccver) + + AC_MSG_CHECKING([if this is icc in disguise]) + AC_EGREP_CPP([^__INTEL_COMPILER], [__INTEL_COMPILER], + dnl action if the text is found, this it has not been replaced by the + dnl cpp + ICC="no" + AC_MSG_RESULT([no]), + dnl the text was not found, it was replaced by the cpp + ICC="yes" + AC_MSG_RESULT([yes]) + ) + + if test "$ICC" = "yes"; then + dnl this is icc, not gcc. + + dnl ICC warnings we ignore: + dnl * 279 warns on static conditions in while expressions + dnl * 269 warns on our "%Od" printf formatters for curl_off_t output: + dnl "invalid format string conversion" + + WARN="-wd279,269" + + if test "$gccnum" -gt "600"; then + dnl icc 6.0 and older doesn't have the -Wall flag + WARN="-Wall $WARN" + fi + else dnl $ICC = yes + dnl + WARN="-W -Wall -Wwrite-strings -pedantic -Wno-long-long -Wundef -Wpointer-arith -Wnested-externs -Winline -Wmissing-declarations -Wmissing-prototypes -Wsign-compare" + + dnl -Wcast-align is a bit too annoying ;-) + + if test "$gccnum" -ge "296"; then + dnl gcc 2.96 or later + WARN="$WARN -Wfloat-equal" + + if test "$gccnum" -gt "296"; then + dnl this option does not exist in 2.96 + WARN="$WARN -Wno-format-nonliteral" + fi + + dnl -Wunreachable-code seems totally unreliable on my gcc 3.3.2 on + dnl on i686-Linux as it gives us heaps with false positives + if test "$gccnum" -ge "303"; then + dnl gcc 3.3 and later + WARN="$WARN -Wendif-labels -Wstrict-prototypes" + fi + fi + + for flag in $CPPFLAGS; do + case "$flag" in + -I*) + dnl include path + add=`echo $flag | sed 's/^-I/-isystem /g'` + WARN="$WARN $add" + ;; + esac + done + + fi dnl $ICC = no + + CFLAGS="$CFLAGS $WARN" + + fi dnl $GCC = yes + + dnl strip off optimizer flags + NEWFLAGS="" + for flag in $CFLAGS; do + case "$flag" in + -O*) + dnl echo "cut off $flag" + ;; + *) + NEWFLAGS="$NEWFLAGS $flag" + ;; + esac + done + CFLAGS=$NEWFLAGS + +]) dnl end of AC_DEFUN() + + +dnl This macro determines if the specified struct exists in the specified file +dnl Syntax: +dnl CARES_CHECK_STRUCT(headers, struct name, if found, [if not found]) + +AC_DEFUN([CARES_CHECK_STRUCT], [ + AC_MSG_CHECKING([for struct $2]) + AC_TRY_COMPILE([$1], + [ + struct $2 struct_instance; + ], ac_struct="yes", ac_found="no") + if test "$ac_struct" = "yes" ; then + AC_MSG_RESULT(yes) + $3 + else + AC_MSG_RESULT(no) + $4 + fi +]) + +dnl This macro determines if the specified constant exists in the specified file +dnl Syntax: +dnl CARES_CHECK_CONSTANT(headers, constant name, if found, [if not found]) + +AC_DEFUN([CARES_CHECK_CONSTANT], [ + AC_MSG_CHECKING([for $2]) + AC_EGREP_CPP(VARIABLEWASDEFINED, + [ + $1 + + #ifdef $2 + VARIABLEWASDEFINED + #else + NJET + #endif + ], ac_constant="yes", ac_constant="no" + ) + if test "$ac_constant" = "yes" ; then + AC_MSG_RESULT(yes) + $3 + else + AC_MSG_RESULT(no) + $4 + fi +]) + + +dnl This macro determines how many parameters getservbyport_r takes +AC_DEFUN([CARES_CHECK_GETSERVBYPORT_R], [ + AC_MSG_CHECKING([how many arguments getservbyport_r takes]) + AC_TRY_COMPILE( + [#include <netdb.h>], + [ + int p1, p5; + char *p2, p4[4096]; + struct servent *p3, *p6; + getservbyport_r(p1, p2, p3, p4, p5, &p6); + ], ac_func_getservbyport_r=6, + [AC_TRY_COMPILE( + [#include <netdb.h>], + [ + int p1, p5; + char *p2, p4[4096]; + struct servent *p3; + getservbyport_r(p1, p2, p3, p4, p5); + ], ac_func_getservbyport_r=5, + [AC_TRY_COMPILE( + [#include <netdb.h>], + [ + int p1; + char *p2; + struct servent *p3; + struct servent_data p4; + getservbyport_r(p1, p2, p3, &p4); + ], ac_func_getservbyport_r=4, ac_func_getservbyport_r=0 + )] + )] + ) +if test $ac_func_getservbyport_r != "0" ; then + AC_MSG_RESULT($ac_func_getservbyport_r) + AC_DEFINE(HAVE_GETSERVBYPORT_R, 1, [Specifies whether getservbyport_r is present]) + AC_DEFINE_UNQUOTED(GETSERVBYPORT_R_ARGS, $ac_func_getservbyport_r, [Specifies the number of arguments to +getservbyport_r]) + if test $ac_func_getservbyport_r = "4" ; then + AC_DEFINE(GETSERVBYPORT_R_BUFSIZE, sizeof(struct servent_data), [Specifies the size of the buffer to pass to +getservbyport_r]) + else + AC_DEFINE(GETSERVBYPORT_R_BUFSIZE, 4096, [Specifies the size of the buffer to pass to getservbyport_r]) + fi +else + AC_MSG_RESULT([not found]) +fi +]) + |