diff --git a/gis/tilemaker/Portfile b/gis/tilemaker/Portfile
index 1814ca8ab98a0..bed7f6e5be733 100644
--- a/gis/tilemaker/Portfile
+++ b/gis/tilemaker/Portfile
@@ -6,7 +6,7 @@ PortGroup           cmake 1.1
 PortGroup           boost 1.0
 
 github.setup        systemed tilemaker 3.0.0 v
-revision            0
+revision            1
 
 categories          gis
 license             FTWPL
diff --git a/science/grads/Portfile b/science/grads/Portfile
index a3dc47660930e..9cf1a521b8dae 100644
--- a/science/grads/Portfile
+++ b/science/grads/Portfile
@@ -4,9 +4,8 @@ PortSystem          1.0
 
 name                grads
 version             2.2.1
-revision            20
+revision            21
 set branch          [join [lrange [split ${version} .] 0 1] .]
-platforms           darwin
 maintainers         {takeshi @tenomoto}
 license             GPL-2
 categories          science
diff --git a/science/plplot/Portfile b/science/plplot/Portfile
index 7aa68e4e8aa71..0d6f259a463c5 100644
--- a/science/plplot/Portfile
+++ b/science/plplot/Portfile
@@ -7,7 +7,7 @@ PortGroup       wxWidgets 1.0
 
 name            plplot
 version         5.15.0
-revision        6
+revision        7
 maintainers     {takeshi @tenomoto} openmaintainer
 categories      science
 license         LGPL
diff --git a/science/xastir/Portfile b/science/xastir/Portfile
index a754acf372c0c..1b697f9b87e67 100644
--- a/science/xastir/Portfile
+++ b/science/xastir/Portfile
@@ -16,7 +16,7 @@ github.setup        Xastir Xastir 2.1.8 Release-
 checksums           rmd160  8e32480f5bd43d262d3ca2153fb69c492273ad25 \
                     sha256  8b010e0ae665c1dd5f83c609940b6b8b56ad0f777bac0f637f599311111bf973 \
                     size    2222069
-revision            11
+revision            12
 
 use_autoconf        yes
 autoconf.cmd        ./bootstrap.sh
diff --git a/textproc/gpsbabel/Portfile b/textproc/gpsbabel/Portfile
index 66d2a9f32e116..695ebe5c79cd1 100644
--- a/textproc/gpsbabel/Portfile
+++ b/textproc/gpsbabel/Portfile
@@ -7,7 +7,7 @@ PortGroup           qmake5 1.0
 github.setup        GPSBabel gpsbabel 1_7_0 gpsbabel_
 # some tricks because version at github is x_y_z
 version             [join [lrange [split ${version} _] 0 2] .]
-#revision            0
+revision            1
 
 categories          textproc comms
 license             GPL-2+
@@ -18,7 +18,6 @@ long_description    GPSBabel converts GPS waypoints, tracks, and routes \
                     common mapping format like Delorme, Streets and \
                     Trips, or even a serial upload or download to a GPS \
                     unit such as those from Garmin and Magellan.
-platforms           darwin
 homepage            https://www.gpsbabel.org
 
 checksums           rmd160  dd41329723a41749a6ef929e0766fba708509116 \