nxcomp/configure.ac: we don't need to specify empty optional parameters.

8b88289e · Mihai Moldovan · b1b91947 · 8b88289e
Commit 8b88289e authored Aug 09, 2017 by Mihai Moldovan
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configure.ac nxcomp/configure.ac +2 -2

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--- a/nxcomp/configure.ac
+++ b/nxcomp/configure.ac
@@ -36,8 +36,8 @@ m4_ifdef([PKG_INSTALLDIR], [PKG_INSTALLDIR],
          AC_SUBST([pkgconfigdir], [${with_pkgconfigdir}])])

 PKG_CHECK_MODULES([JPEG], [libjpeg], [], [LIBJPEG_FALLBACK_CHECK])
-PKG_CHECK_MODULES([PNG], [libpng], [], [])
-PKG_CHECK_MODULES([Z], [zlib], [], [])
+PKG_CHECK_MODULES([PNG], [libpng])
+PKG_CHECK_MODULES([Z], [zlib])

 AC_LANG([C++])
 NX_COMPILER_BRAND