treewide: Make explicit that 'dev' output of libtiff is used

pkgs/applications/graphics/qtpfsgui/default.nix

@@ -19,7 +19,7 @@ stdenv.mkDerivation rec {
     "EXIV2PATH=${exiv2}/include/exiv2"
     "OPENEXRDIR=${openexr}/include/OpenEXR"
     "FFTW3DIR=${fftwSinglePrec.dev}/include"
-    "LIBTIFFDIR=${libtiff}/include"
+    "LIBTIFFDIR=${libtiff.dev}/include"
   ];
 
   meta = {

pkgs/development/libraries/gdal/default.nix

@@ -30,7 +30,7 @@ composableDerivation.composableDerivation {} (fixed: rec {
 
   configureFlags = [
     "--with-jpeg=${libjpeg.dev}"
-    "--with-libtiff=${libtiff}" # optional (without largetiff support)
+    "--with-libtiff=${libtiff.dev}" # optional (without largetiff support)
     "--with-libpng=${libpng.dev}"   # optional
     "--with-libz=${zlib}"       # optional
 

pkgs/development/libraries/gdal/gdal-1_11.nix

@@ -25,7 +25,7 @@ composableDerivation.composableDerivation {} (fixed: rec {
 
   configureFlags = [
     "--with-jpeg=${libjpeg.dev}"
-    "--with-libtiff=${libtiff}" # optional (without largetiff support)
+    "--with-libtiff=${libtiff.dev}" # optional (without largetiff support)
     "--with-libpng=${libpng.dev}"   # optional
     "--with-libz=${zlib}"       # optional
 

pkgs/tools/graphics/netpbm/default.nix

@@ -26,7 +26,7 @@ stdenv.mkDerivation rec {
     echo "STATICLIB_TOO = n" >> config.mk
     substituteInPlace "config.mk" \
         --replace "TIFFLIB = NONE" "TIFFLIB = ${libtiff.out}/lib/libtiff.so" \
-        --replace "TIFFHDR_DIR =" "TIFFHDR_DIR = ${libtiff}/include"
+        --replace "TIFFHDR_DIR =" "TIFFHDR_DIR = ${libtiff.dev}/include"
   '';
 
   preBuild = ''