build: remove duplicate -lminiupnpc linking

Having the link check in the header check loop means we get `-lminiupnpc
-lminiupnpc -lminiupnpc` on the link line. This is unnecessary, and
results in warnings, i.e:
```bash
ld: warning: ignoring duplicate libraries: '-levent', '-lminiupnpc'
ld: warning: ignoring duplicate libraries: '-levent', '-lminiupnpc'
ld: warning: ignoring duplicate libraries: '-levent', '-lminiupnpc'
```

These warnings have been occurring since the new linker released with
Xcode 15, and also came up in https://github.com/hebasto/bitcoin/pull/34.
This commit is contained in:
fanquake 2023-10-30 15:56:07 +01:00
parent 4458ae811a
commit 4e95096952
No known key found for this signature in database
GPG key ID: 2EEB9F5CC09526C1

View file

@ -1424,15 +1424,13 @@ dnl Check for libminiupnpc (optional)
if test "$use_upnp" != "no"; then
TEMP_CPPFLAGS="$CPPFLAGS"
CPPFLAGS="$CPPFLAGS $MINIUPNPC_CPPFLAGS"
AC_CHECK_HEADERS(
[miniupnpc/miniupnpc.h miniupnpc/upnpcommands.h miniupnpc/upnperrors.h],
[AC_CHECK_LIB([miniupnpc], [upnpDiscover], [MINIUPNPC_LIBS="$MINIUPNPC_LIBS -lminiupnpc"], [have_miniupnpc=no], [$MINIUPNPC_LIBS])],
[have_miniupnpc=no]
)
AC_CHECK_HEADERS([miniupnpc/miniupnpc.h miniupnpc/upnpcommands.h miniupnpc/upnperrors.h], [], [have_miniupnpc=no])
dnl The minimum supported miniUPnPc API version is set to 17. This excludes
dnl versions with known vulnerabilities.
if test "$have_miniupnpc" != "no"; then
AC_CHECK_LIB([miniupnpc], [upnpDiscover], [MINIUPNPC_LIBS="$MINIUPNPC_LIBS -lminiupnpc"], [have_miniupnpc=no], [$MINIUPNPC_LIBS])
dnl The minimum supported miniUPnPc API version is set to 17. This excludes
dnl versions with known vulnerabilities.
AC_MSG_CHECKING([whether miniUPnPc API version is supported])
AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
@%:@include <miniupnpc/miniupnpc.h>