try to fix building on Solaris 2.6 by using correctly passed variable

apg/apg.spec

@@ -33,7 +33,7 @@ Distribution: OpenPKG [PLUS]
 Group:        System
 License:      GPL
 Version:      2.2.0
-Release:      20030804
+Release:      20030811
 
 #   list of sources
 Source0:      http://www.adel.nursat.kz/apg/download/apg-%{version}.tar.gz
@@ -76,7 +76,7 @@ AutoReqProv:  no
     esac
     %{l_make} %{l_mflags -O} all \
         CC="%{l_cc}" \
-        CFLAGS="%{l_cflags -O} $defs" \
+        FLAGS="%{l_cflags -O} $defs" \
         CS_LIBS="$libs"
 
 %install