jpeg: Fixpkgconfig, cleanup (#2312)

* Fixpkgconfig

* Auto*

* cleanup

media-libs/jpeg/jpeg-9c.recipe

@@ -59,8 +59,8 @@ BUILD_REQUIRES="
 	"
 BUILD_PREREQUIRES="
 	cmd:aclocal
-	cmd:autoconf
 	cmd:automake
+	cmd:autoreconf
 	cmd:gcc$secondaryArchSuffix
 	cmd:grep
 	cmd:ld$secondaryArchSuffix
@@ -87,6 +87,8 @@ INSTALL()
 
 	prepareInstalledDevelLibs libjpeg
 
+	fixPkgconfig
+
 	# devel package
 	packageEntries devel \
 		$developDir