netpbm: improve CC being set in pkgmk,conf

netpbm/Pkgfile

@@ -21,7 +21,7 @@ build() {
 	sed -i -e 's/\(.*\$(SYMLINK) \)\(pnmtopnm\)\(\$(EXE) \)\(pamtopnm\)/\1\4\3\2/' \
 		converter/other/Makefile
 
-	make CC="${CC:-gcc}"
+	make
 	make pkgdir=$PKG/usr package
 
 	install -d $PKG/usr/share

netpbm/config.mk

@@ -34,10 +34,10 @@ BUILD_FIASCO = Y
 # do not get built into anything.
 
 # The C compiler (including macro preprocessor)
-#CC = gcc
+CC ?= gcc
 # Note that 'cc' is usually an alias for whatever is the main compiler
 # on a system, e.g. the GNU Compiler on Linux.
-CC = cc
+#CC = cc
 
 # The linker.
 LD = $(CC)