* Makefile.in (INTERNAL_LDFLAGS): Add @HLDFLAGS@ to list.

	(HLDENV): Set to @HLDENV@.
	(gdb): Prefix link command line with $(HLDENV).
	* configure.in: Add support to test for --enable-shared and
	generate appropriate values for HLDFLAGS and HLDENV.
	* configure: Regenerated with autoconf.
PR 10489

1 files changed, 59 insertions, 0 deletions

diff --git a/gdb/configure.in b/gdb/configure.in
index f33178d..f00ac5a 100644
--- a/gdb/configure.in
+++ b/gdb/configure.in
@@ -265,6 +265,65 @@ AC_SUBST(ENABLE_CFLAGS)
 AC_SUBST(ENABLE_CLIBS)
 AC_SUBST(ENABLE_OBS)
 
+# Begin stuff to support --enable-shared
+AC_ARG_ENABLE(shared,
+[  --enable-shared         use shared libraries],
+[case "${enableval}" in
+  yes) shared=true ;;
+  no)  shared=false ;;
+  *) shared=true ;;
+esac])dnl
+
+HLDFLAGS=
+HLDENV=
+# If we have shared libraries, try to set rpath reasonably.
+if test "${shared}" = "true"; then
+  case "${host}" in
+  *-*-hpux*)
+    HLDFLAGS='-Wl,+s,+b,$(libdir)'
+    ;;
+  *-*-irix5* | *-*-irix6*)
+    HLDFLAGS='-Wl,-rpath,$(libdir)'
+    ;;
+  *-*-linux*aout*)
+    ;;
+  *-*-linux*)
+    HLDFLAGS='-Wl,-rpath,$(libdir)'
+    ;;
+  *-*-solaris*)
+    HLDFLAGS='-R $(libdir)'
+    ;;
+  *-*-sysv4*)
+    HLDENV='if test -z "$${LD_RUN_PATH}"; then LD_RUN_PATH=$(libdir); else LD_RUN_PATH=$${LD_RUN_PATH}:$(libdir); fi; export LD_RUN_PATH;'
+    ;;
+  esac
+fi
+
+# On SunOS, if the linker supports the -rpath option, use it to
+# prevent ../bfd and ../opcodes from being included in the run time
+# search path.
+case "${host}" in
+  *-*-sunos*)
+    echo 'main () { }' > conftest.c
+    ${CC} -o conftest -Wl,-rpath= conftest.c >/dev/null 2>conftest.t
+    if grep 'unrecognized' conftest.t >/dev/null 2>&1; then
+      :
+    elif grep 'No such file' conftest.t >/dev/null 2>&1; then
+      :
+    elif grep 'do not mix' conftest.t >/dev/null 2>&1; then
+      :
+    elif test "${shared}" = "true"; then
+      HLDFLAGS='-Wl,-rpath=$(libdir)'
+    else
+      HLDFLAGS='-Wl,-rpath='
+    fi
+    rm -f conftest.t conftest.c conftest
+    ;;
+esac
+AC_SUBST(HLDFLAGS)
+AC_SUBST(HLDENV)
+# End stuff to support --enable-shared
+
 # target_subdir is used by the testsuite to find the target libraries.
 target_subdir=
 if test "${host}" != "${target}"; then