diff --git a/.travis.yml b/.travis.yml
index 3125363cdf..b88eb3a188 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -26,6 +26,10 @@ matrix:
           compiler: i686-w64-mingw32-gcc
         - os: osx
           compiler: x86_64-w64-mingw32-gcc
+        - compiler: i686-w64-mingw32-gcc
+          env: CONFIG_OPTS="-d --strict-warnings"
+        - compiler: x86_64-w64-mingw32-gcc
+          env: CONFIG_OPTS="-d --strict-warnings"
 
 before_script:
     - if [ "$CC" == i686-w64-mingw32-gcc ]; then
@@ -35,6 +39,9 @@ before_script:
           export CROSS_COMPILE=${CC%%gcc}; unset CC;
           ./Configure mingw64 $CONFIG_OPTS;
       else
+          if [ "$CC" == gcc ]; then
+              export CONFIG_OPTS="$CONFIG_OPTS -Wno-error=shadow";
+          fi;
           ./config $CONFIG_OPTS;
       fi
 
@@ -43,8 +50,5 @@ script:
     - if [ -z "$CROSS_COMPILE" ]; then make test; fi
 
 notifications:
-    recipient:
-        - openssl-commits@openssl.org
     email:
-        on_success: change
-        on_failure: always
+        - openssl-commits@openssl.org
diff --git a/Configure b/Configure
index d99eed7f93..81b263fa19 100755
--- a/Configure
+++ b/Configure
@@ -416,6 +416,7 @@ my %table=(
 "linux-ia64-icc","icc:-DL_ENDIAN -O2 -Wall::-D_REENTRANT::-ldl -no_cpprt:SIXTY_FOUR_BIT_LONG RC4_CHUNK DES_RISC1 DES_INT:${ia64_asm}:dlfcn:linux-shared:-fPIC::.so.\$(SHLIB_MAJOR).\$(SHLIB_MINOR)",
 "linux-x86_64",	"gcc:-m64 -DL_ENDIAN -O3 -Wall::-D_REENTRANT::-ldl:SIXTY_FOUR_BIT_LONG RC4_CHUNK DES_INT DES_UNROLL:${x86_64_asm}:elf:dlfcn:linux-shared:-fPIC:-m64:.so.\$(SHLIB_MAJOR).\$(SHLIB_MINOR):::64",
 "linux-x86_64-clang",	"clang: -m64 -DL_ENDIAN -O3 -Wall -Wextra $clang_disabled_warnings -Qunused-arguments::-D_REENTRANT::-ldl:SIXTY_FOUR_BIT_LONG RC4_CHUNK DES_INT DES_UNROLL:${x86_64_asm}:elf:dlfcn:linux-shared:-fPIC:-m64:.so.\$(SHLIB_MAJOR).\$(SHLIB_MINOR):::64",
+"debug-linux-x86_64-clang",	"clang: -DBN_DEBUG -DREF_CHECK -DCONF_DEBUG -DCRYPTO_MDEBUG -m64 -DL_ENDIAN -g -Wall -Wextra $clang_disabled_warnings -Qunused-arguments::-D_REENTRANT::-ldl:SIXTY_FOUR_BIT_LONG RC4_CHUNK DES_INT DES_UNROLL:${x86_64_asm}:elf:dlfcn:linux-shared:-fPIC:-m64:.so.\$(SHLIB_MAJOR).\$(SHLIB_MINOR):::64",
 "linux-x86_64-icc", "icc:-DL_ENDIAN -O2::-D_REENTRANT::-ldl -no_cpprt:SIXTY_FOUR_BIT_LONG RC4_CHUNK DES_INT DES_UNROLL:${x86_64_asm}:elf:dlfcn:linux-shared:-fPIC::.so.\$(SHLIB_MAJOR).\$(SHLIB_MINOR):::64",
 "linux-x32",	"gcc:-mx32 -DL_ENDIAN -O3 -Wall::-D_REENTRANT::-ldl:SIXTY_FOUR_BIT RC4_CHUNK_LL DES_INT DES_UNROLL:${x86_64_asm}:elf:dlfcn:linux-shared:-fPIC:-mx32:.so.\$(SHLIB_MAJOR).\$(SHLIB_MINOR):::x32",
 "linux64-s390x",	"gcc:-m64 -DB_ENDIAN -O3 -Wall::-D_REENTRANT::-ldl:SIXTY_FOUR_BIT_LONG RC4_CHAR RC4_CHUNK DES_INT DES_UNROLL:${s390x_asm}:64:dlfcn:linux-shared:-fPIC:-m64:.so.\$(SHLIB_MAJOR).\$(SHLIB_MINOR):::64",