configure: check if OpenSSL linking wants -ldl
To make it easier to link with static versions of OpenSSL, the configure
script now checks if -ldl is needed for linking.
Help-by: TJ Saunders
diff --git a/configure.ac b/configure.ac
index 162b2d6..ce65179 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1510,6 +1510,46 @@
if test X"$HAVECRYPTO" = X"yes"; then
+ AC_MSG_CHECKING([OpenSSL linking without -ldl])
+ saved_libs=$LIBS
+ AC_TRY_LINK(
+ [
+ #include <openssl/evp.h>
+ ],
+ [
+ SSLeay_add_all_algorithms();
+ ],
+ [
+ AC_MSG_RESULT(yes)
+ LIBS="$saved_libs"
+ ],
+ [
+ AC_MSG_RESULT(no)
+ AC_MSG_CHECKING([OpenSSL linking with -ldl])
+ LIBS="-ldl $LIBS"
+ AC_TRY_LINK(
+ [
+ #include <openssl/evp.h>
+ ],
+ [
+ SSLeay_add_all_algorithms();
+ ],
+ [
+ AC_MSG_RESULT(yes)
+ LIBS="$saved_libs -ldl"
+ ],
+ [
+ AC_MSG_RESULT(no)
+ LIBS="$saved_libs"
+ ]
+ )
+
+ ]
+ )
+
+ fi
+
+ if test X"$HAVECRYPTO" = X"yes"; then
dnl This is only reasonable to do if crypto actually is there: check for
dnl SSL libs NOTE: it is important to do this AFTER the crypto lib
