From 95b475477e334703b3d4b5c2864e3e0525a27270 Mon Sep 17 00:00:00 2001
From: Stu Grossman <grossman@cygnus>
Date: Wed, 22 Jan 1997 02:33:50 +0000
Subject: [PATCH] 	* configure.in configure:  Check if host has libdl if
 doing 	Solaris threads.

---
 gdb/ChangeLog    |  5 +++++
 gdb/configure    | 52 ++++++++++++++++++++++++++++++++++++++++++++++++----
 gdb/configure.in |  1 +
 3 files changed, 54 insertions(+), 4 deletions(-)

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 44be418..53a9508 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,8 @@
+Tue Jan 21 18:32:23 1997  Stu Grossman  (grossman@lisa.cygnus.com)
+
+	* configure.in configure:  Check if host has libdl if doing
+	Solaris threads.
+
 Tue Jan 21 17:03:26 1997  Geoffrey Noer  <noer@cygnus.com>
 
 	* mn10300-tdep.c: wrote/fixed implementations of
diff --git a/gdb/configure b/gdb/configure
index 3d97f2d..3ce4625 100755
--- a/gdb/configure
+++ b/gdb/configure
@@ -2099,6 +2099,50 @@ EOF
 EOF
 
 			CONFIG_OBS="${CONFIG_OBS} sol-thread.o"
+			echo $ac_n "checking for -ldl""... $ac_c" 1>&6
+ac_lib_var=`echo dl'_'dlopen | tr './+\055' '__p_'`
+if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  ac_save_LIBS="$LIBS"
+LIBS="-ldl  $LIBS"
+cat > conftest.$ac_ext <<EOF
+#line 2111 "configure"
+#include "confdefs.h"
+/* Override any gcc2 internal prototype to avoid an error.  */
+/* We use char because int might match the return type of a gcc2
+    builtin and then its argument prototype would still apply.  */
+char dlopen();
+
+int main() { return 0; }
+int t() {
+dlopen()
+; return 0; }
+EOF
+if { (eval echo configure:2123: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
+  rm -rf conftest*
+  eval "ac_cv_lib_$ac_lib_var=yes"
+else
+  rm -rf conftest*
+  eval "ac_cv_lib_$ac_lib_var=no"
+fi
+rm -f conftest*
+LIBS="$ac_save_LIBS"
+
+fi
+if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then
+  echo "$ac_t""yes" 1>&6
+    ac_tr_lib=HAVE_LIB`echo dl | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
+  cat >> confdefs.h <<EOF
+#define $ac_tr_lib 1
+EOF
+
+  LIBS="-ldl $LIBS"
+
+else
+  echo "$ac_t""no" 1>&6
+fi
+
 			if test "$GCC" = "yes" ; then
 				CONFIG_LDFLAGS="${CONFIG_LDFLAGS} -Xlinker -export-dynamic"
 			fi
@@ -2482,12 +2526,12 @@ if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2486 "configure"
+#line 2530 "configure"
 #include "confdefs.h"
 #include <tclInt.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:2491: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:2535: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -2614,12 +2658,12 @@ if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2618 "configure"
+#line 2662 "configure"
 #include "confdefs.h"
 #include <tk.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:2623: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:2667: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out`
 if test -z "$ac_err"; then
   rm -rf conftest*
diff --git a/gdb/configure.in b/gdb/configure.in
index 3610389..5c4f497 100644
--- a/gdb/configure.in
+++ b/gdb/configure.in
@@ -178,6 +178,7 @@ if test ${build} = ${host} -a ${host} = ${target} ; then
 			AC_MSG_RESULT(yes)
 			AC_DEFINE(HAVE_THREAD_DB_LIB)
 			CONFIG_OBS="${CONFIG_OBS} sol-thread.o"
+			AC_CHECK_LIB(dl, dlopen)
 			if test "$GCC" = "yes" ; then
 				CONFIG_LDFLAGS="${CONFIG_LDFLAGS} -Xlinker -export-dynamic"
 			fi
-- 
2.7.4