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Move the libpcap version number check into acinclude.m4, call it

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PCAP_IS_SUITABLE.
This commit is contained in:
david
2010-04-20 22:02:10 +00:00
parent 49e6ad8560
commit 701fe380f8
3 changed files with 31 additions and 22 deletions
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23
acinclude.m4
View File

@@ -26,3 +26,26 @@ recvfrom (0, NULL, 0, 0, NULL, &arg);],[
[Type of 6th argument to recvfrom()]) [Type of 6th argument to recvfrom()])
AC_LANG_POP(C++) AC_LANG_POP(C++)
]) ])
AC_DEFUN([PCAP_IS_SUITABLE],
[
AC_MSG_CHECKING(if libpcap version is suitable)
AC_TRY_RUN([
#include <stdio.h>
extern char pcap_version[];
int main() {
int major, minor1, minor2;
sscanf(pcap_version,"%d.%d.%d", &major, &minor1, &minor2);
if (major > 0)
exit(0);
if (minor1 < 9)
exit(1);
if (minor2 < 4)
exit(1);
exit(0);
}
],
[AC_MSG_RESULT(yes); $1],
[AC_MSG_RESULT(no); $2],
[AC_MSG_RESULT(cross-compiling -- assuming yes); $3])
])

7
configure vendored
View File

@@ -7181,8 +7181,9 @@ if test $have_libpcap = yes; then
# link with -lpcap for the purposes of this test # link with -lpcap for the purposes of this test
LIBS_OLD="$LIBS" LIBS_OLD="$LIBS"
LIBS="$LIBS -lpcap" LIBS="$LIBS -lpcap"
{ $as_echo "$as_me:$LINENO: checking if libpcap version is recent enough" >&5
$as_echo_n "checking if libpcap version is recent enough... " >&6; } { $as_echo "$as_me:$LINENO: checking if libpcap version is suitable" >&5
$as_echo_n "checking if libpcap version is suitable... " >&6; }
if test "$cross_compiling" = yes; then if test "$cross_compiling" = yes; then
{ $as_echo "$as_me:$LINENO: result: cross-compiling -- assuming yes" >&5 { $as_echo "$as_me:$LINENO: result: cross-compiling -- assuming yes" >&5
$as_echo "cross-compiling -- assuming yes" >&6; }; have_libpcap=yes $as_echo "cross-compiling -- assuming yes" >&6; }; have_libpcap=yes
@@ -7207,6 +7208,7 @@ int main() {
exit(1); exit(1);
exit(0); exit(0);
} }
_ACEOF _ACEOF
rm -f conftest$ac_exeext rm -f conftest$ac_exeext
if { (ac_try="$ac_link" if { (ac_try="$ac_link"
@@ -7246,6 +7248,7 @@ rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext conftest.$a
fi fi
LIBS="$LIBS_OLD" LIBS="$LIBS_OLD"
fi fi

19
configure.ac
View File

@@ -369,24 +369,7 @@ if test $have_libpcap = yes; then
# link with -lpcap for the purposes of this test # link with -lpcap for the purposes of this test
LIBS_OLD="$LIBS" LIBS_OLD="$LIBS"
LIBS="$LIBS -lpcap" LIBS="$LIBS -lpcap"
AC_MSG_CHECKING(if libpcap version is recent enough) PCAP_IS_SUITABLE([have_libpcap=yes], [have_libpcap=no], [have_libpcap=yes])
AC_TRY_RUN([
#include <stdio.h>
extern char pcap_version[];
int main() {
int major, minor1, minor2;
sscanf(pcap_version,"%d.%d.%d", &major, &minor1, &minor2);
if (major > 0)
exit(0);
if (minor1 < 9)
exit(1);
if (minor2 < 4)
exit(1);
exit(0);
}],
[AC_MSG_RESULT(yes); have_libpcap=yes],
[AC_MSG_RESULT(no); have_libpcap=no],
[AC_MSG_RESULT(cross-compiling -- assuming yes); have_libpcap=yes])
LIBS="$LIBS_OLD" LIBS="$LIBS_OLD"
fi fi