From 9a820ccb5df7f029f16145f285dba523f16d08e9 Mon Sep 17 00:00:00 2001
From: imaginos <imaginos@726aef4b-f618-498e-8847-2d620e286838>
Date: Mon, 12 Jun 2006 05:11:39 +0000
Subject: [PATCH] added -ldl fix for openssl crypto package. fixes static lib
 link requirement

git-svn-id: https://znc.svn.sourceforge.net/svnroot/znc/trunk@735 726aef4b-f618-498e-8847-2d620e286838
---
 configure    | 79 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 configure.in |  4 +++
 2 files changed, 83 insertions(+)

diff --git a/configure b/configure
index 6756e00b..c0483c4c 100755
--- a/configure
+++ b/configure
@@ -2992,6 +2992,85 @@ if test -z "$NOSSL"; then
 		appendInc -I${OPENSSL}/include
 	fi
 
+	if test -z "$NOCHECK_DL"; then
+
+echo "$as_me:$LINENO: checking for dlopen in -ldl" >&5
+echo $ECHO_N "checking for dlopen in -ldl... $ECHO_C" >&6
+if test "${ac_cv_lib_dl_dlopen+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-ldl  $LIBS"
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+/* Override any gcc2 internal prototype to avoid an error.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+/* 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 ()
+{
+dlopen ();
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_lib_dl_dlopen=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_lib_dl_dlopen=no
+fi
+rm -f conftest.err conftest.$ac_objext \
+      conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+echo "$as_me:$LINENO: result: $ac_cv_lib_dl_dlopen" >&5
+echo "${ECHO_T}$ac_cv_lib_dl_dlopen" >&6
+if test $ac_cv_lib_dl_dlopen = yes; then
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_LIBDL 1
+_ACEOF
+
+  LIBS="-ldl $LIBS"
+
+else
+  MODULES="no"
+fi
+
+		NOCHECK_DL=1
+	fi
 
 echo "$as_me:$LINENO: checking for BIO_new in -lcrypto" >&5
 echo $ECHO_N "checking for BIO_new in -lcrypto... $ECHO_C" >&6
diff --git a/configure.in b/configure.in
index db8a97cc..3c0912c2 100644
--- a/configure.in
+++ b/configure.in
@@ -58,6 +58,10 @@ if test -z "$NOSSL"; then
 		appendInc -I${OPENSSL}/include
 	fi
 
+	if test -z "$NOCHECK_DL"; then
+		AC_CHECK_LIB( dl, dlopen,,MODULES="no",)
+		NOCHECK_DL=1
+	fi
 	AC_CHECK_LIB( crypto, BIO_new,,NOSSL=1, )
 	AC_CHECK_LIB( ssl, SSL_shutdown,,NOSSL=1, )