Description: Add CPPFLAGS where missing. Spotted by blhc.

--- a/libpgcommon/Makefile.in
+++ b/libpgcommon/Makefile.in
@@ -58,7 +58,7 @@ check: libpgcommon.a

 # Command to build each of the .o files
 $(SA_OBJS): %.o: %.c
-	$(CC) $(CFLAGS) -c -o $@ $<
+	$(CC) $(CPPFLAGS) $(CFLAGS) -c -o $@ $<

 $(SA_OBJS): ../postgis_config.h

--- a/loader/Makefile.in
+++ b/loader/Makefile.in
@@ -88,13 +88,13 @@ $(LIBLWGEOM):
 	$(MAKE) -C ../liblwgeom

 shp2pgsql-core.o: shp2pgsql-core.c shp2pgsql-core.h shpcommon.h
-	$(CC) $(CFLAGS) -c $<
+	$(CC) $(CPPFLAGS) $(CFLAGS) -c $<

 pgsql2shp-core.o: pgsql2shp-core.c pgsql2shp-core.h shpcommon.h
-	$(CC) $(CFLAGS) $(PGSQL_FE_CPPFLAGS) -c $<
+	$(CC) $(CPPFLAGS) $(CFLAGS) $(PGSQL_FE_CPPFLAGS) -c $<

 pgsql2shp-cli.o: pgsql2shp-cli.c pgsql2shp-core.h shpcommon.h
-	$(CC) $(CFLAGS) $(PGSQL_FE_CPPFLAGS) -c $<
+	$(CC) $(CPPFLAGS) $(CFLAGS) $(PGSQL_FE_CPPFLAGS) -c $<

 $(PGSQL2SHP-CLI): $(SHPLIB_OBJS) pgsql2shp-core.o pgsql2shp-cli.o $(LIBLWGEOM)
 	$(LIBTOOL) --mode=link \
@@ -105,7 +105,7 @@ $(SHP2PGSQL-CLI): $(SHPLIB_OBJS) shp2pgs
 	  $(CC) $(CFLAGS) $^ -o $@ $(LDFLAGS) $(GETTEXT_LDFLAGS) $(ICONV_LDFLAGS)

 shp2pgsql-gui.o: shp2pgsql-gui.c shp2pgsql-core.h shpcommon.h
-	$(CC) $(CFLAGS) $(GTK_CFLAGS) $(PGSQL_FE_CPPFLAGS) -o $@ -c shp2pgsql-gui.c
+	$(CC) $(CPPFLAGS) $(CFLAGS) $(GTK_CFLAGS) $(PGSQL_FE_CPPFLAGS) -o $@ -c shp2pgsql-gui.c

 $(SHP2PGSQL-GUI): $(SHPLIB_OBJS) shp2pgsql-core.o shp2pgsql-gui.o pgsql2shp-core.o $(LIBLWGEOM) $(GTK_WIN32_RES)
 	$(LIBTOOL) --mode=link \
--- a/raster/loader/Makefile.in
+++ b/raster/loader/Makefile.in
@@ -79,7 +79,7 @@ LDFLAGS = \
 all: $(RASTER2PGSQL)

 raster2pgsql.o: raster2pgsql.c
-	$(CC) $(CFLAGS) -c $<
+	$(CC) $(CPPFLAGS) $(CFLAGS) -c $<

 $(RASTER2PGSQL): $(RT_CORE)/librtcore.a raster2pgsql.o
 	$(LIBTOOL) --mode=link $(CC) $(CFLAGS) $^ $(LDFLAGS) -o $@
