fix all "qt style yes options" which start with -l

7de9d3709 broke them, because suddenly every -l* switch was parsed as a
library. fix this by re-arranging how the options are parsed.
this obsoletes d7ab351cdd as well, by being more generic.

fwiw, this syntax is stupid to start with, because all unknown -l*
options are implicitly libraries and create confusing configure
failures. emulating the compiler/linker command lines isn't such a great
idea ...

Task-number: QTBUG-29174
Change-Id: I11bac7a6f458664dff8cbe57ed9cd33a08d5e9ec
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Joerg Bornemann <joerg.bornemann@digia.com>

configure

@@ -1110,18 +1110,10 @@ while [ "$#" -gt 0 ]; do
             VAL=`echo $1 | sed 's,-R,,'`
         fi
         ;;
-    -largefile)
-        VAR="largefile"
-        VAL="yes"
-        ;;
-    -l?*|-l)
+    -l)  # -lfoo is handled differently
         VAR="add_link"
-        if [ "$1" = "-l" ]; then
-            shift
-            VAL="$1"
-        else
-            VAL=`echo $1 | sed 's,-l,,'`
-        fi
+        shift
+        VAL="$1"
         ;;
     -F?*|-F)
         VAR="add_fpath"
@@ -1132,14 +1124,10 @@ while [ "$#" -gt 0 ]; do
             VAL=`echo $1 | sed 's,-F,,'`
         fi
         ;;
-    -fw?*|-fw)
+    -fw)  # -fwfoo is handled differently
         VAR="add_framework"
-        if [ "$1" = "-fw" ]; then
-            shift
-            VAL="$1"
-        else
-            VAL=`echo $1 | sed 's,-fw,,'`
-        fi
+        shift
+        VAL="$1"
         ;;
     -W*)
         VAR="add_warn"
@@ -2130,6 +2118,16 @@ while [ "$#" -gt 0 ]; do
             UNKNOWN_OPT=yes
         fi
         ;;
+    l*)  # -lfoo
+        L_FLAGS="$L_FLAGS -l\"${VAR#l}\""
+        ;;
+    fw*)  # -fwfoo
+        if [ "$BUILD_ON_MAC" = "yes" ]; then
+            L_FLAGS="$L_FLAGS -framework \"${VAR#fw}\""
+        else
+            UNKNOWN_OPT=yes
+        fi
+        ;;
     *)
         UNKNOWN_OPT=yes
         ;;