Fix erroneous uses of ${prefix} rather than $(CDE_INSTALLATION_TOP)

Some Makefiles use prefix when they should be using
CDE_INSTALLATION_TOP.

Patch by Peter G.

cde/lib/DtHelp/Makefile.am

@@ -9,7 +9,7 @@ dist_cfg_DATA = CDE.lcx
 lib_LTLIBRARIES = libDtHelp.la
 
 libDtHelp_la_CFLAGS = -I./il -I./jpeg -I../DtSvc/DtUtil2 -DDTLIB \
-		      -DCDE_INSTALLATION_TOP='"${prefix}"' \
+		      -DCDE_INSTALLATION_TOP='"$(CDE_INSTALLATION_TOP)"' \
 		      -DCDE_CONFIGURATION_TOP='"$(CDE_CONFIGURATION_TOP)"' \
 		      @DT_INCDIR@ @DTI_INCDIR@
 

cde/lib/DtHelp/il/Makefile.am

@@ -2,7 +2,7 @@ MAINTAINERCLEANFILES = Makefile.in
 
 noinst_LTLIBRARIES = libil.la
 
-libil_la_CFLAGS = -I.. -DDTLIB -DCDE_INSTALLATION_TOP='"${prefix}"' \
+libil_la_CFLAGS = -I.. -DDTLIB -DCDE_INSTALLATION_TOP='"$(CDE_INSTALLATION_TOP)"' \
 		  -DCDE_CONFIGURATION_TOP='"$(CDE_CONFIGURATION_TOP)"' \
 		  @DT_INCDIR@ @DTI_INCDIR@
 

cde/lib/DtSearch/raima/Makefile.am

@@ -4,7 +4,7 @@ noinst_LTLIBRARIES = libraima.la
 
 libraima_la_LIBADD = -lc -lm
 
-libraima_la_CFLAGS = -DCDE_INSTALLATION_TOP=\"${prefix}\" \
+libraima_la_CFLAGS = -DCDE_INSTALLATION_TOP=\"$(CDE_INSTALLATION_TOP)\" \
 		     @DT_INCDIR@ \
 		     -DCDE_CONFIGURATION_TOP=\"$(CDE_CONFIGURATION_TOP)\" \
 		     -DNO_TRANS -DUNIX -D_POSIX_SOURCE -DMULTIBYTE

cde/lib/DtSvc/Makefile.am

@@ -6,7 +6,7 @@ libDtSvc_la_LDFLAGS = -version-info 2:1:0
 
 # USe CPPFLAGS so it will apply to both C and C++ components
 libDtSvc_la_CPPFLAGS = -I./include -DMULTIBYTE -DNLS16 -I../include \
-	@DT_INCDIR@ -DCDE_INSTALLATION_TOP=\"${prefix}\" \
+	@DT_INCDIR@ -DCDE_INSTALLATION_TOP=\"$(CDE_INSTALLATION_TOP)\" \
        -DCDE_CONFIGURATION_TOP=\"$(CDE_CONFIGURATION_TOP)\"
 
 if SOLARIS

cde/lib/DtWidget/Makefile.am

@@ -1,4 +1,4 @@
-unixdir = ${prefix}/app-defaults/C
+unixdir = $(CDE_INSTALLATION_TOP)/app-defaults/C
 
 MAINTAINERCLEANFILES = Makefile.in