1dnl check if ld supports --version-script
2dnl
3AC_DEFUN([rk_VERSIONSCRIPT],[
4AC_CACHE_CHECK(for ld --version-script, rk_cv_version_script,[
5  rk_cv_version_script=no
6
7  cat > conftest.map <<EOF
8HEIM_GSS_V1 {
9        global: gss*;
10};
11HEIM_GSS_V1_1 {
12        global: gss_init_creds;
13} HEIM_GSS_V1;
14EOF
15cat > conftest.c <<EOF
16int gss_init_creds(int foo) { return 0; }
17EOF
18
19  if AC_TRY_COMMAND([${CC-cc} -c $CFLAGS -fPIC conftest.c])  && 
20     AC_TRY_COMMAND([${CC-cc} -shared -Wl,--version-script,conftest.map $CFLAGS $LDFLAGS -o libconftestlib.so conftest.o]);
21  then
22    rk_cv_version_script=yes
23  fi
24rm -rf conftest* libconftest* .libs
25])
26
27if test $rk_cv_version_script = yes ; then
28  doversioning=yes
29  LDFLAGS_VERSION_SCRIPT="-Wl,--version-script,"
30else
31  doversioning=no
32  LDFLAGS_VERSION_SCRIPT=
33fi
34AC_SUBST(VERSIONING)
35
36AM_CONDITIONAL(versionscript,test $doversioning = yes)
37AC_SUBST(LDFLAGS_VERSION_SCRIPT)
38
39])