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author | Cary Coutant <ccoutant@google.com> | 2013-11-22 15:46:51 -0800 |
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committer | Cary Coutant <ccoutant@google.com> | 2013-11-22 15:47:18 -0800 |
commit | 6632e8ccecd8fe5de18ad78ced1c14755a24b169 (patch) | |
tree | 7ee6b668139ad83d7bbc8e2b588a4aa5620b91a4 /gold/configure | |
parent | 0c075858c711eaf6fcd23a07e86d7fadcfea4330 (diff) | |
download | fsf-binutils-gdb-6632e8ccecd8fe5de18ad78ced1c14755a24b169.zip fsf-binutils-gdb-6632e8ccecd8fe5de18ad78ced1c14755a24b169.tar.gz fsf-binutils-gdb-6632e8ccecd8fe5de18ad78ced1c14755a24b169.tar.bz2 |
Add check for which library is needed for dlopen.
gold/
PR gold/16203
* configure.ac: Add check for which library is needed for
dlopen.
* configure: Regenerate.
Diffstat (limited to 'gold/configure')
-rwxr-xr-x | gold/configure | 64 |
1 files changed, 61 insertions, 3 deletions
diff --git a/gold/configure b/gold/configure index 83f5aa9..24140cf 100755 --- a/gold/configure +++ b/gold/configure @@ -7193,13 +7193,71 @@ if test "x$ac_cv_header_dlfcn_h" = x""yes; then : cat >>confdefs.h <<_ACEOF #define HAVE_DLFCN_H 1 _ACEOF - DLOPEN_LIBS="-ldl" -else - DLOPEN_LIBS="" + fi done +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing dlopen" >&5 +$as_echo_n "checking for library containing dlopen... " >&6; } +if test "${ac_cv_search_dlopen+set}" = set; then : + $as_echo_n "(cached) " >&6 +else + ac_func_search_save_LIBS=$LIBS +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +/* Override any GCC internal prototype to avoid an error. + Use char because int might match the return type of a GCC + builtin and then its argument prototype would still apply. */ +#ifdef __cplusplus +extern "C" +#endif +char dlopen (); +int +main () +{ +return dlopen (); + ; + return 0; +} +_ACEOF +for ac_lib in '' dl dld; do + if test -z "$ac_lib"; then + ac_res="none required" + else + ac_res=-l$ac_lib + LIBS="-l$ac_lib $ac_func_search_save_LIBS" + fi + if ac_fn_cxx_try_link "$LINENO"; then : + ac_cv_search_dlopen=$ac_res +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext + if test "${ac_cv_search_dlopen+set}" = set; then : + break +fi +done +if test "${ac_cv_search_dlopen+set}" = set; then : + +else + ac_cv_search_dlopen=no +fi +rm conftest.$ac_ext +LIBS=$ac_func_search_save_LIBS +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_dlopen" >&5 +$as_echo "$ac_cv_search_dlopen" >&6; } +ac_res=$ac_cv_search_dlopen +if test "$ac_res" != no; then : + test "$ac_res" = "none required" || LIBS="$ac_res $LIBS" + +fi + +case "$ac_cv_search_dlopen" in + no*) DLOPEN_LIBS="";; + *) DLOPEN_LIBS="$ac_cv_search_dlopen";; +esac for ac_func in mallinfo posix_fallocate fallocate readv sysconf times |