diff options
| -rw-r--r-- | ares/Makefile.am | 8 | ||||
| -rw-r--r-- | ares/configure.ac | 12 |
2 files changed, 19 insertions, 1 deletions
diff --git a/ares/Makefile.am b/ares/Makefile.am index 9983941a1..8718f55c3 100644 --- a/ares/Makefile.am +++ b/ares/Makefile.am @@ -43,7 +43,13 @@ VER=-version-info 1:0:0 # set age to 0. (c:r:a=0) # -libcares_la_LDFLAGS = $(VER) +if NO_UNDEFINED +# The -no-undefined flag is crucial for this to build fine on some platforms +UNDEF = -no-undefined +endif + + +libcares_la_LDFLAGS = $(UNDEF) $(VER) # Makefile.inc provides the CSOURCES and HHEADERS defines include Makefile.inc diff --git a/ares/configure.ac b/ares/configure.ac index f862f8bf3..8f903a300 100644 --- a/ares/configure.ac +++ b/ares/configure.ac @@ -69,6 +69,18 @@ dnl libtool setup CARES_CLEAR_LIBTOOL_TAGS AC_PROG_LIBTOOL +AC_MSG_CHECKING([if we need -no-undefined]) +case $host in + *-*-cygwin | *-*-mingw* | *-*-pw32*) + need_no_undefined=yes + ;; + *) + need_no_undefined=no + ;; +esac +AC_MSG_RESULT($need_no_undefined) +AM_CONDITIONAL(NO_UNDEFINED, test x$need_no_undefined = xyes) + dnl Checks for header files. AC_HEADER_STDC |