ICU-3389 Fix --enable-debug. The configure script can't handle debug options.

X-SVN-Rev: 15137

icu4c/source/config/mh-cygwin-msvc

@@ -23,6 +23,10 @@ ifeq ($(ENABLE_DEBUG),1)
 # /MDd means 'compiles and links a debugable multithreaded program with DLL'
 THREADSCFLAGS += /MDd
 THREADSCXXFLAGS += /MDd
+# The debug flags are defined here because configure can't handle them.
+CFLAGS+=/Zi
+CXXFLAGS+=/Zi
+LDFLAGS+=/DEBUG
 else
 # /MD means 'compiles and links a multithreaded program with DLL'
 THREADSCFLAGS += /MD

icu4c/source/runConfigureICU

@@ -265,9 +265,9 @@ case $platform in
         CXX=cl; export CXX
         RELEASE_CFLAGS='/O2 /Ob2'
         RELEASE_CXXFLAGS='/O2 /Ob2'
-        DEBUG_CFLAGS='/Zi'
-        DEBUG_CXXFLAGS='/Zi'
-        DEBUG_LDFLAGS='/DEBUG'
+        # The real debug flags are defined by the mh file because configure can't handle them.
+        DEBUG_CFLAGS=
+        DEBUG_CXXFLAGS=
         ;;
     MacOSX)
         THE_OS="MacOS X (Darwin)"