housekeeping - nornmalize _version_constraint() implementations across PKGBUILDs

18 files changed, 112 insertions, 110 deletions

diff --git a/libre/bibletime/PKGBUILD b/libre/bibletime/PKGBUILD
index 434b4115e..9123326cf 100644
--- a/libre/bibletime/PKGBUILD
+++ b/libre/bibletime/PKGBUILD
@@ -42,7 +42,7 @@ _version_constraint() # (dep_pkgname [precision])
   local n_dots=$(tmp=${full_version%-*} ; tmp=${tmp//[^\.]} ; echo "${#tmp}" ;)
   local def_precision=$(( n_dots + 1 ))
   local is_prec_valid=$(( req_precision > 0 && req_precision <= def_precision ))
-  local precision=$( (( is_prec_valid )) && echo ${req_precision} || echo ${def_precision} )
+  local precision=$((( is_prec_valid )) && echo ${req_precision} || echo ${def_precision})
   local pkgver_rx='[0-9A-Za-z_]+'
   pkgver_rx=$(sed 's|\]|\+]|' <<<${pkgver_rx}) # according to the wiki, '+' is not allowed,
                                                # but some pkgver have it (eg: 5.15.10+kde+r130)
@@ -51,16 +51,16 @@ _version_constraint() # (dep_pkgname [precision])
   local garbage_rx='[^0-9].*'
   local capture_rx=${pkgver_rx}
   for (( n_dots=1 ; n_dots < precision ; ++n_dots )) ; do capture_rx+=${subver_rx} ; done ;
-  local version pkgrel has_split_char version_min version_max constraint_string
+  local version pkgrel has_dot_char version_min version_max constraint_string
   declare -i subver subver_inc pkgrel_inc
 
   if   [[ "${full_version}" =~ ^(${capture_rx})(${subver_rx})*-(${pkgrel_rx}).*$ ]]
   then version=${BASH_REMATCH[1]} # pkgver cut to the requested precision
        #unused=${BASH_REMATCH[2]} # discarded pkgver segments
        pkgrel=${BASH_REMATCH[3]}  # pkgrel with non-numerics right-trimmed
-       has_split_char=$(grep '\.' <<<${version} &> /dev/null ; echo $((! $?)) ; )
+       has_dot_char=$([[ "${version}" =~ \. ]] ; echo $(( ! $? )) ; )
        subver=$(sed "s|${garbage_rx}||" <<<${version##*.}) # right-trim from any non-numeric
-       version=$( ((has_split_char)) && echo ${version%.*}.${subver} || echo ${subver} )
+       version=$( (( has_dot_char )) && echo ${version%.*}.${subver} || echo ${subver} )
        subver_inc=$(( subver + 1 ))
        pkgrel_inc=$(( pkgrel + 1 ))
        version_min=$(   (( ! is_prec_valid    )) && echo ${full_version%-*}-${pkgrel} || \
@@ -98,8 +98,8 @@ build() {
 }
 
 package() {
-  make -C build DESTDIR="$pkgdir" install
-
   # pin to strongly-coupled dependency versions
-  depends=( ${depends[*]/sword/$(_version_constraint sword 3)} )
+  depends=( ${depends[*]/sword/} $(_version_constraint sword 3) )
+
+  make -C build DESTDIR="$pkgdir" install
 }
diff --git a/libre/blender/PKGBUILD b/libre/blender/PKGBUILD
index be3475e01..09e3b7f15 100644
--- a/libre/blender/PKGBUILD
+++ b/libre/blender/PKGBUILD
@@ -88,7 +88,7 @@ _version_constraint() # (dep_pkgname [precision])
   local n_dots=$(tmp=${full_version%-*} ; tmp=${tmp//[^\.]} ; echo "${#tmp}" ;)
   local def_precision=$(( n_dots + 1 ))
   local is_prec_valid=$(( req_precision > 0 && req_precision <= def_precision ))
-  local precision=$( (( is_prec_valid )) && echo ${req_precision} || echo ${def_precision} )
+  local precision=$((( is_prec_valid )) && echo ${req_precision} || echo ${def_precision})
   local pkgver_rx='[0-9A-Za-z_]+'
   pkgver_rx=$(sed 's|\]|\+]|' <<<${pkgver_rx}) # according to the wiki, '+' is not allowed,
                                                # but some pkgver have it (eg: 5.15.10+kde+r130)
@@ -97,16 +97,16 @@ _version_constraint() # (dep_pkgname [precision])
   local garbage_rx='[^0-9].*'
   local capture_rx=${pkgver_rx}
   for (( n_dots=1 ; n_dots < precision ; ++n_dots )) ; do capture_rx+=${subver_rx} ; done ;
-  local version pkgrel has_split_char version_min version_max constraint_string
+  local version pkgrel has_dot_char version_min version_max constraint_string
   declare -i subver subver_inc pkgrel_inc
 
   if   [[ "${full_version}" =~ ^(${capture_rx})(${subver_rx})*-(${pkgrel_rx}).*$ ]]
   then version=${BASH_REMATCH[1]} # pkgver cut to the requested precision
        #unused=${BASH_REMATCH[2]} # discarded pkgver segments
        pkgrel=${BASH_REMATCH[3]}  # pkgrel with non-numerics right-trimmed
-       has_split_char=$(grep '\.' <<<${version} &> /dev/null ; echo $((! $?)) ; )
+       has_dot_char=$([[ "${version}" =~ \. ]] ; echo $(( ! $? )) ; )
        subver=$(sed "s|${garbage_rx}||" <<<${version##*.}) # right-trim from any non-numeric
-       version=$( ((has_split_char)) && echo ${version%.*}.${subver} || echo ${subver} )
+       version=$( (( has_dot_char )) && echo ${version%.*}.${subver} || echo ${subver} )
        subver_inc=$(( subver + 1 ))
        pkgrel_inc=$(( pkgrel + 1 ))
        version_min=$(   (( ! is_prec_valid    )) && echo ${full_version%-*}-${pkgrel} || \
@@ -236,14 +236,14 @@ package() {
   #       libboost_filesystem.so <- openimageio,
   #       libboost_thread.so     <- openshadinglanguage,
   #       libboost_iostreams.so  <- openvdb
-  depends+=( libboost_locale.so
-             $(_version_constraint opencolorio         2)   # eg: libOpenColorIO.so.2.1
-             $(_version_constraint openexr             2)   # eg: libHalf.so.12
-             $(_version_constraint openimageio         2)   # eg: libOpenImageIO.so.2.0
-             $(_version_constraint openshadinglanguage 2)   # eg: liboslcomp.so.1.10
-             $(_version_constraint opensubdiv          3)   # eg: libosdGPU.so.3.3.3
-             $(_version_constraint openvdb             2)   # eg: libopenvdb.so.6.2
-             $(_version_constraint python              2) ) # eg: libpython3.6.so.1.0
+  depends+=( libboost_locale.so )
+  depends=( ${depends[*]/opencolorio/}         $(_version_constraint opencolorio         2) ) # eg: libOpenColorIO.so.2.1
+  depends=( ${depends[*]/openexr/}             $(_version_constraint openexr             2) ) # eg: libHalf.so.12
+  depends=( ${depends[*]/openimageio/}         $(_version_constraint openimageio         2) ) # eg: libOpenImageIO.so.2.0
+  depends=( ${depends[*]/openshadinglanguage/} $(_version_constraint openshadinglanguage 2) ) # eg: liboslcomp.so.1.10
+  depends=( ${depends[*]/opensubdiv/}          $(_version_constraint opensubdiv          3) ) # eg: libosdGPU.so.3.3.3
+  depends=( ${depends[*]/openvdb/}             $(_version_constraint openvdb             2) ) # eg: libopenvdb.so.6.2
+  depends=( ${depends[*]/python/}              $(_version_constraint python              2) ) # eg: libpython3.6.so.1.0
 
   DESTDIR="${pkgdir}" cmake --install build
   install -Dm755 release/bin/blender-softwaregl "${pkgdir}/usr/bin/blender-softwaregl"
diff --git a/libre/cups-filters/PKGBUILD b/libre/cups-filters/PKGBUILD
index e2202f255..3ad28388a 100644
--- a/libre/cups-filters/PKGBUILD
+++ b/libre/cups-filters/PKGBUILD
@@ -50,7 +50,7 @@ _version_constraint() # (dep_pkgname [precision])
   local n_dots=$(tmp=${full_version%-*} ; tmp=${tmp//[^\.]} ; echo "${#tmp}" ;)
   local def_precision=$(( n_dots + 1 ))
   local is_prec_valid=$(( req_precision > 0 && req_precision <= def_precision ))
-  local precision=$( (( is_prec_valid )) && echo ${req_precision} || echo ${def_precision} )
+  local precision=$((( is_prec_valid )) && echo ${req_precision} || echo ${def_precision})
   local pkgver_rx='[0-9A-Za-z_]+'
   pkgver_rx=$(sed 's|\]|\+]|' <<<${pkgver_rx}) # according to the wiki, '+' is not allowed,
                                                # but some pkgver have it (eg: 5.15.10+kde+r130)
@@ -59,16 +59,16 @@ _version_constraint() # (dep_pkgname [precision])
   local garbage_rx='[^0-9].*'
   local capture_rx=${pkgver_rx}
   for (( n_dots=1 ; n_dots < precision ; ++n_dots )) ; do capture_rx+=${subver_rx} ; done ;
-  local version pkgrel has_split_char version_min version_max constraint_string
+  local version pkgrel has_dot_char version_min version_max constraint_string
   declare -i subver subver_inc pkgrel_inc
 
   if   [[ "${full_version}" =~ ^(${capture_rx})(${subver_rx})*-(${pkgrel_rx}).*$ ]]
   then version=${BASH_REMATCH[1]} # pkgver cut to the requested precision
        #unused=${BASH_REMATCH[2]} # discarded pkgver segments
        pkgrel=${BASH_REMATCH[3]}  # pkgrel with non-numerics right-trimmed
-       has_split_char=$(grep '\.' <<<${version} &> /dev/null ; echo $((! $?)) ; )
+       has_dot_char=$([[ "${version}" =~ \. ]] ; echo $(( ! $? )) ; )
        subver=$(sed "s|${garbage_rx}||" <<<${version##*.}) # right-trim from any non-numeric
-       version=$( ((has_split_char)) && echo ${version%.*}.${subver} || echo ${subver} )
+       version=$( (( has_dot_char )) && echo ${version%.*}.${subver} || echo ${subver} )
        subver_inc=$(( subver + 1 ))
        pkgrel_inc=$(( pkgrel + 1 ))
        version_min=$(   (( ! is_prec_valid    )) && echo ${full_version%-*}-${pkgrel} || \
diff --git a/libre/freecad/PKGBUILD b/libre/freecad/PKGBUILD
index 5ceb70651..b24710434 100644
--- a/libre/freecad/PKGBUILD
+++ b/libre/freecad/PKGBUILD
@@ -64,7 +64,7 @@ _version_constraint() # (dep_pkgname [precision])
   local n_dots=$(tmp=${full_version%-*} ; tmp=${tmp//[^\.]} ; echo "${#tmp}" ;)
   local def_precision=$(( n_dots + 1 ))
   local is_prec_valid=$(( req_precision > 0 && req_precision <= def_precision ))
-  local precision=$( (( is_prec_valid )) && echo ${req_precision} || echo ${def_precision} )
+  local precision=$((( is_prec_valid )) && echo ${req_precision} || echo ${def_precision})
   local pkgver_rx='[0-9A-Za-z_]+'
   pkgver_rx=$(sed 's|\]|\+]|' <<<${pkgver_rx}) # according to the wiki, '+' is not allowed,
                                                # but some pkgver have it (eg: 5.15.10+kde+r130)
@@ -73,16 +73,16 @@ _version_constraint() # (dep_pkgname [precision])
   local garbage_rx='[^0-9].*'
   local capture_rx=${pkgver_rx}
   for (( n_dots=1 ; n_dots < precision ; ++n_dots )) ; do capture_rx+=${subver_rx} ; done ;
-  local version pkgrel has_split_char version_min version_max constraint_string
+  local version pkgrel has_dot_char version_min version_max constraint_string
   declare -i subver subver_inc pkgrel_inc
 
   if   [[ "${full_version}" =~ ^(${capture_rx})(${subver_rx})*-(${pkgrel_rx}).*$ ]]
   then version=${BASH_REMATCH[1]} # pkgver cut to the requested precision
        #unused=${BASH_REMATCH[2]} # discarded pkgver segments
        pkgrel=${BASH_REMATCH[3]}  # pkgrel with non-numerics right-trimmed
-       has_split_char=$(grep '\.' <<<${version} &> /dev/null ; echo $((! $?)) ; )
+       has_dot_char=$([[ "${version}" =~ \. ]] ; echo $(( ! $? )) ; )
        subver=$(sed "s|${garbage_rx}||" <<<${version##*.}) # right-trim from any non-numeric
-       version=$( ((has_split_char)) && echo ${version%.*}.${subver} || echo ${subver} )
+       version=$( (( has_dot_char )) && echo ${version%.*}.${subver} || echo ${subver} )
        subver_inc=$(( subver + 1 ))
        pkgrel_inc=$(( pkgrel + 1 ))
        version_min=$(   (( ! is_prec_valid    )) && echo ${full_version%-*}-${pkgrel} || \
@@ -137,9 +137,8 @@ build() {
 
 package() {
   # pin to strongly-coupled dependency versions
-  depends=( ${depends[*]/boost-libs/} )
-  depends+=( $(_version_constraint boost-libs 3)
-             $(_version_constraint python     2) )
+  depends=( ${depends[*]/boost-libs/} $(_version_constraint boost-libs 3) )
+  depends+=( $(_version_constraint python 2) )
 
   DESTDIR="$pkgdir" ninja -C build install
 
diff --git a/libre/icedove-extension-enigmail/PKGBUILD b/libre/icedove-extension-enigmail/PKGBUILD
index adb2a34df..f9765882e 100644
--- a/libre/icedove-extension-enigmail/PKGBUILD
+++ b/libre/icedove-extension-enigmail/PKGBUILD
@@ -14,6 +14,7 @@
 # * replace 'thunderbird' dependency with 'icedove'
 # * apply dependency version constraints
 # * allow building arch-specific packages (different version constraints)
+# * pin to strongly-coupled dependency versions
 
 
 _pkgname=thunderbird-extension-enigmail
@@ -57,7 +58,7 @@ _version_constraint() # (dep_pkgname [precision])
   local n_dots=$(tmp=${full_version%-*} ; tmp=${tmp//[^\.]} ; echo "${#tmp}" ;)
   local def_precision=$(( n_dots + 1 ))
   local is_prec_valid=$(( req_precision > 0 && req_precision <= def_precision ))
-  local precision=$( (( is_prec_valid )) && echo ${req_precision} || echo ${def_precision} )
+  local precision=$((( is_prec_valid )) && echo ${req_precision} || echo ${def_precision})
   local pkgver_rx='[0-9A-Za-z_]+'
   pkgver_rx=$(sed 's|\]|\+]|' <<<${pkgver_rx}) # according to the wiki, '+' is not allowed,
                                                # but some pkgver have it (eg: 5.15.10+kde+r130)
@@ -66,16 +67,16 @@ _version_constraint() # (dep_pkgname [precision])
   local garbage_rx='[^0-9].*'
   local capture_rx=${pkgver_rx}
   for (( n_dots=1 ; n_dots < precision ; ++n_dots )) ; do capture_rx+=${subver_rx} ; done ;
-  local version pkgrel has_split_char version_min version_max constraint_string
+  local version pkgrel has_dot_char version_min version_max constraint_string
   declare -i subver subver_inc pkgrel_inc
 
   if   [[ "${full_version}" =~ ^(${capture_rx})(${subver_rx})*-(${pkgrel_rx}).*$ ]]
   then version=${BASH_REMATCH[1]} # pkgver cut to the requested precision
        #unused=${BASH_REMATCH[2]} # discarded pkgver segments
        pkgrel=${BASH_REMATCH[3]}  # pkgrel with non-numerics right-trimmed
-       has_split_char=$(grep '\.' <<<${version} &> /dev/null ; echo $((! $?)) ; )
+       has_dot_char=$([[ "${version}" =~ \. ]] ; echo $(( ! $? )) ; )
        subver=$(sed "s|${garbage_rx}||" <<<${version##*.}) # right-trim from any non-numeric
-       version=$( ((has_split_char)) && echo ${version%.*}.${subver} || echo ${subver} )
+       version=$( (( has_dot_char )) && echo ${version%.*}.${subver} || echo ${subver} )
        subver_inc=$(( subver + 1 ))
        pkgrel_inc=$(( pkgrel + 1 ))
        version_min=$(   (( ! is_prec_valid    )) && echo ${full_version%-*}-${pkgrel} || \
@@ -117,10 +118,9 @@ build() {
 }
 
 package() {
-    # parabola dependency version contraints
-    local gnupg_constraints="$(  _version_constraint 'gnupg'  )"
-    local icedove_constraints="$(_version_constraint 'icedove')"
-    depends+=( ${gnupg_constraints} ${icedove_constraints} )
+    # pin to strongly-coupled dependency versions
+    depends=( ${depends[*]/gnupg/}   $(_version_constraint 'gnupg'  ) )
+    depends=( ${depends[*]/icedove/} $(_version_constraint 'icedove') )
 
     # upstream min thunderbird version contraint
     local min_icedove_ver=$(grep strict_min_version "${srcdir}"/enigmail/build-tb/dist/manifest.json | sed 's|.*: "\([0-9]*\)\..*|\1|g')
diff --git a/libre/jami-qt/PKGBUILD b/libre/jami-qt/PKGBUILD
index 315d33810..0c983d0a4 100644
--- a/libre/jami-qt/PKGBUILD
+++ b/libre/jami-qt/PKGBUILD
@@ -43,7 +43,7 @@ _version_constraint() # (dep_pkgname [precision])
   local n_dots=$(tmp=${full_version%-*} ; tmp=${tmp//[^\.]} ; echo "${#tmp}" ;)
   local def_precision=$(( n_dots + 1 ))
   local is_prec_valid=$(( req_precision > 0 && req_precision <= def_precision ))
-  local precision=$( (( is_prec_valid )) && echo ${req_precision} || echo ${def_precision} )
+  local precision=$((( is_prec_valid )) && echo ${req_precision} || echo ${def_precision})
   local pkgver_rx='[0-9A-Za-z_]+'
   pkgver_rx=$(sed 's|\]|\+]|' <<<${pkgver_rx}) # according to the wiki, '+' is not allowed,
                                                # but some pkgver have it (eg: 5.15.10+kde+r130)
@@ -52,16 +52,16 @@ _version_constraint() # (dep_pkgname [precision])
   local garbage_rx='[^0-9].*'
   local capture_rx=${pkgver_rx}
   for (( n_dots=1 ; n_dots < precision ; ++n_dots )) ; do capture_rx+=${subver_rx} ; done ;
-  local version pkgrel has_split_char version_min version_max constraint_string
+  local version pkgrel has_dot_char version_min version_max constraint_string
   declare -i subver subver_inc pkgrel_inc
 
   if   [[ "${full_version}" =~ ^(${capture_rx})(${subver_rx})*-(${pkgrel_rx}).*$ ]]
   then version=${BASH_REMATCH[1]} # pkgver cut to the requested precision
        #unused=${BASH_REMATCH[2]} # discarded pkgver segments
        pkgrel=${BASH_REMATCH[3]}  # pkgrel with non-numerics right-trimmed
-       has_split_char=$(grep '\.' <<<${version} &> /dev/null ; echo $((! $?)) ; )
+       has_dot_char=$([[ "${version}" =~ \. ]] ; echo $(( ! $? )) ; )
        subver=$(sed "s|${garbage_rx}||" <<<${version##*.}) # right-trim from any non-numeric
-       version=$( ((has_split_char)) && echo ${version%.*}.${subver} || echo ${subver} )
+       version=$( (( has_dot_char )) && echo ${version%.*}.${subver} || echo ${subver} )
        subver_inc=$(( subver + 1 ))
        pkgrel_inc=$(( pkgrel + 1 ))
        version_min=$(   (( ! is_prec_valid    )) && echo ${full_version%-*}-${pkgrel} || \
diff --git a/libre/libxfce4ui/PKGBUILD b/libre/libxfce4ui/PKGBUILD
index 28a7b2129..5be606f45 100644
--- a/libre/libxfce4ui/PKGBUILD
+++ b/libre/libxfce4ui/PKGBUILD
@@ -42,7 +42,7 @@ _version_constraint() # (dep_pkgname [precision])
   local n_dots=$(tmp=${full_version%-*} ; tmp=${tmp//[^\.]} ; echo "${#tmp}" ;)
   local def_precision=$(( n_dots + 1 ))
   local is_prec_valid=$(( req_precision > 0 && req_precision <= def_precision ))
-  local precision=$( (( is_prec_valid )) && echo ${req_precision} || echo ${def_precision} )
+  local precision=$((( is_prec_valid )) && echo ${req_precision} || echo ${def_precision})
   local pkgver_rx='[0-9A-Za-z_]+'
   pkgver_rx=$(sed 's|\]|\+]|' <<<${pkgver_rx}) # according to the wiki, '+' is not allowed,
                                                # but some pkgver have it (eg: 5.15.10+kde+r130)
@@ -51,16 +51,16 @@ _version_constraint() # (dep_pkgname [precision])
   local garbage_rx='[^0-9].*'
   local capture_rx=${pkgver_rx}
   for (( n_dots=1 ; n_dots < precision ; ++n_dots )) ; do capture_rx+=${subver_rx} ; done ;
-  local version pkgrel has_split_char version_min version_max constraint_string
+  local version pkgrel has_dot_char version_min version_max constraint_string
   declare -i subver subver_inc pkgrel_inc
 
   if   [[ "${full_version}" =~ ^(${capture_rx})(${subver_rx})*-(${pkgrel_rx}).*$ ]]
   then version=${BASH_REMATCH[1]} # pkgver cut to the requested precision
        #unused=${BASH_REMATCH[2]} # discarded pkgver segments
        pkgrel=${BASH_REMATCH[3]}  # pkgrel with non-numerics right-trimmed
-       has_split_char=$(grep '\.' <<<${version} &> /dev/null ; echo $((! $?)) ; )
+       has_dot_char=$([[ "${version}" =~ \. ]] ; echo $(( ! $? )) ; )
        subver=$(sed "s|${garbage_rx}||" <<<${version##*.}) # right-trim from any non-numeric
-       version=$( ((has_split_char)) && echo ${version%.*}.${subver} || echo ${subver} )
+       version=$( (( has_dot_char )) && echo ${version%.*}.${subver} || echo ${subver} )
        subver_inc=$(( subver + 1 ))
        pkgrel_inc=$(( pkgrel + 1 ))
        version_min=$(   (( ! is_prec_valid    )) && echo ${full_version%-*}-${pkgrel} || \
diff --git a/libre/pyqt5/PKGBUILD b/libre/pyqt5/PKGBUILD
index 4331b8a13..6fafd2bad 100644
--- a/libre/pyqt5/PKGBUILD
+++ b/libre/pyqt5/PKGBUILD
@@ -67,7 +67,7 @@ _version_constraint() # (dep_pkgname [precision])
   local n_dots=$(tmp=${full_version%-*} ; tmp=${tmp//[^\.]} ; echo "${#tmp}" ;)
   local def_precision=$(( n_dots + 1 ))
   local is_prec_valid=$(( req_precision > 0 && req_precision <= def_precision ))
-  local precision=$( (( is_prec_valid )) && echo ${req_precision} || echo ${def_precision} )
+  local precision=$((( is_prec_valid )) && echo ${req_precision} || echo ${def_precision})
   local pkgver_rx='[0-9A-Za-z_]+'
   pkgver_rx=$(sed 's|\]|\+]|' <<<${pkgver_rx}) # according to the wiki, '+' is not allowed,
                                                # but some pkgver have it (eg: 5.15.10+kde+r130)
@@ -76,16 +76,16 @@ _version_constraint() # (dep_pkgname [precision])
   local garbage_rx='[^0-9].*'
   local capture_rx=${pkgver_rx}
   for (( n_dots=1 ; n_dots < precision ; ++n_dots )) ; do capture_rx+=${subver_rx} ; done ;
-  local version pkgrel has_split_char version_min version_max constraint_string
+  local version pkgrel has_dot_char version_min version_max constraint_string
   declare -i subver subver_inc pkgrel_inc
 
   if   [[ "${full_version}" =~ ^(${capture_rx})(${subver_rx})*-(${pkgrel_rx}).*$ ]]
   then version=${BASH_REMATCH[1]} # pkgver cut to the requested precision
        #unused=${BASH_REMATCH[2]} # discarded pkgver segments
        pkgrel=${BASH_REMATCH[3]}  # pkgrel with non-numerics right-trimmed
-       has_split_char=$(grep '\.' <<<${version} &> /dev/null ; echo $((! $?)) ; )
+       has_dot_char=$([[ "${version}" =~ \. ]] ; echo $(( ! $? )) ; )
        subver=$(sed "s|${garbage_rx}||" <<<${version##*.}) # right-trim from any non-numeric
-       version=$( ((has_split_char)) && echo ${version%.*}.${subver} || echo ${subver} )
+       version=$( (( has_dot_char )) && echo ${version%.*}.${subver} || echo ${subver} )
        subver_inc=$(( subver + 1 ))
        pkgrel_inc=$(( pkgrel + 1 ))
        version_min=$(   (( ! is_prec_valid    )) && echo ${full_version%-*}-${pkgrel} || \
@@ -117,9 +117,8 @@ build() {
 
 package_python-pyqt5(){
   # pin to strongly-coupled dependency versions
-  depends=( ${depends[*]/qt5-base/}           \
-            $(_version_constraint python   2) \
-            $(_version_constraint qt5-base 3) )
+  depends=( ${depends[*]/qt5-base/} $(_version_constraint qt5-base 3) )
+  depends+=( $(_version_constraint python 2) )
 
   cd PyQt5-$pkgver/build
   make INSTALL_ROOT="$pkgdir" install
diff --git a/libre/qt5-styleplugins/PKGBUILD b/libre/qt5-styleplugins/PKGBUILD
index 760635198..b2d318ebd 100644
--- a/libre/qt5-styleplugins/PKGBUILD
+++ b/libre/qt5-styleplugins/PKGBUILD
@@ -42,7 +42,7 @@ _version_constraint() # (dep_pkgname [precision])
   local n_dots=$(tmp=${full_version%-*} ; tmp=${tmp//[^\.]} ; echo "${#tmp}" ;)
   local def_precision=$(( n_dots + 1 ))
   local is_prec_valid=$(( req_precision > 0 && req_precision <= def_precision ))
-  local precision=$( (( is_prec_valid )) && echo ${req_precision} || echo ${def_precision} )
+  local precision=$((( is_prec_valid )) && echo ${req_precision} || echo ${def_precision})
   local pkgver_rx='[0-9A-Za-z_]+'
   pkgver_rx=$(sed 's|\]|\+]|' <<<${pkgver_rx}) # according to the wiki, '+' is not allowed,
                                                # but some pkgver have it (eg: 5.15.10+kde+r130)
@@ -51,16 +51,16 @@ _version_constraint() # (dep_pkgname [precision])
   local garbage_rx='[^0-9].*'
   local capture_rx=${pkgver_rx}
   for (( n_dots=1 ; n_dots < precision ; ++n_dots )) ; do capture_rx+=${subver_rx} ; done ;
-  local version pkgrel has_split_char version_min version_max constraint_string
+  local version pkgrel has_dot_char version_min version_max constraint_string
   declare -i subver subver_inc pkgrel_inc
 
   if   [[ "${full_version}" =~ ^(${capture_rx})(${subver_rx})*-(${pkgrel_rx}).*$ ]]
   then version=${BASH_REMATCH[1]} # pkgver cut to the requested precision
        #unused=${BASH_REMATCH[2]} # discarded pkgver segments
        pkgrel=${BASH_REMATCH[3]}  # pkgrel with non-numerics right-trimmed
-       has_split_char=$(grep '\.' <<<${version} &> /dev/null ; echo $((! $?)) ; )
+       has_dot_char=$([[ "${version}" =~ \. ]] ; echo $(( ! $? )) ; )
        subver=$(sed "s|${garbage_rx}||" <<<${version##*.}) # right-trim from any non-numeric
-       version=$( ((has_split_char)) && echo ${version%.*}.${subver} || echo ${subver} )
+       version=$( (( has_dot_char )) && echo ${version%.*}.${subver} || echo ${subver} )
        subver_inc=$(( subver + 1 ))
        pkgrel_inc=$(( pkgrel + 1 ))
        version_min=$(   (( ! is_prec_valid    )) && echo ${full_version%-*}-${pkgrel} || \
@@ -104,8 +104,7 @@ build() {
 
 package() {
     # pin to strongly-coupled dependency versions
-    depends=( ${depends[*]/qt5-base/} )
-    depends+=( $(_version_constraint qt5-base 3) )
+    depends=( ${depends[*]/qt5-base/} $(_version_constraint qt5-base 3) )
 
     cd qtstyleplugins-${_commit}
 
diff --git a/libre/qt5-webkit/PKGBUILD b/libre/qt5-webkit/PKGBUILD
index 85747d9c2..6663ba9ed 100644
--- a/libre/qt5-webkit/PKGBUILD
+++ b/libre/qt5-webkit/PKGBUILD
@@ -52,7 +52,7 @@ _version_constraint() # (dep_pkgname [precision])
   local n_dots=$(tmp=${full_version%-*} ; tmp=${tmp//[^\.]} ; echo "${#tmp}" ;)
   local def_precision=$(( n_dots + 1 ))
   local is_prec_valid=$(( req_precision > 0 && req_precision <= def_precision ))
-  local precision=$( (( is_prec_valid )) && echo ${req_precision} || echo ${def_precision} )
+  local precision=$((( is_prec_valid )) && echo ${req_precision} || echo ${def_precision})
   local pkgver_rx='[0-9A-Za-z_]+'
   pkgver_rx=$(sed 's|\]|\+]|' <<<${pkgver_rx}) # according to the wiki, '+' is not allowed,
                                                # but some pkgver have it (eg: 5.15.10+kde+r130)
@@ -61,16 +61,16 @@ _version_constraint() # (dep_pkgname [precision])
   local garbage_rx='[^0-9].*'
   local capture_rx=${pkgver_rx}
   for (( n_dots=1 ; n_dots < precision ; ++n_dots )) ; do capture_rx+=${subver_rx} ; done ;
-  local version pkgrel has_split_char version_min version_max constraint_string
+  local version pkgrel has_dot_char version_min version_max constraint_string
   declare -i subver subver_inc pkgrel_inc
 
   if   [[ "${full_version}" =~ ^(${capture_rx})(${subver_rx})*-(${pkgrel_rx}).*$ ]]
   then version=${BASH_REMATCH[1]} # pkgver cut to the requested precision
        #unused=${BASH_REMATCH[2]} # discarded pkgver segments
        pkgrel=${BASH_REMATCH[3]}  # pkgrel with non-numerics right-trimmed
-       has_split_char=$(grep '\.' <<<${version} &> /dev/null ; echo $((! $?)) ; )
+       has_dot_char=$([[ "${version}" =~ \. ]] ; echo $(( ! $? )) ; )
        subver=$(sed "s|${garbage_rx}||" <<<${version##*.}) # right-trim from any non-numeric
-       version=$( ((has_split_char)) && echo ${version%.*}.${subver} || echo ${subver} )
+       version=$( (( has_dot_char )) && echo ${version%.*}.${subver} || echo ${subver} )
        subver_inc=$(( subver + 1 ))
        pkgrel_inc=$(( pkgrel + 1 ))
        version_min=$(   (( ! is_prec_valid    )) && echo ${full_version%-*}-${pkgrel} || \
diff --git a/libre/qutebrowser/PKGBUILD b/libre/qutebrowser/PKGBUILD
index de99c60de..33d157337 100644
--- a/libre/qutebrowser/PKGBUILD
+++ b/libre/qutebrowser/PKGBUILD
@@ -62,7 +62,7 @@ _version_constraint() # (dep_pkgname [precision])
   local n_dots=$(tmp=${full_version%-*} ; tmp=${tmp//[^\.]} ; echo "${#tmp}" ;)
   local def_precision=$(( n_dots + 1 ))
   local is_prec_valid=$(( req_precision > 0 && req_precision <= def_precision ))
-  local precision=$( (( is_prec_valid )) && echo ${req_precision} || echo ${def_precision} )
+  local precision=$((( is_prec_valid )) && echo ${req_precision} || echo ${def_precision})
   local pkgver_rx='[0-9A-Za-z_]+'
   pkgver_rx=$(sed 's|\]|\+]|' <<<${pkgver_rx}) # according to the wiki, '+' is not allowed,
                                                # but some pkgver have it (eg: 5.15.10+kde+r130)
@@ -71,16 +71,16 @@ _version_constraint() # (dep_pkgname [precision])
   local garbage_rx='[^0-9].*'
   local capture_rx=${pkgver_rx}
   for (( n_dots=1 ; n_dots < precision ; ++n_dots )) ; do capture_rx+=${subver_rx} ; done ;
-  local version pkgrel has_split_char version_min version_max constraint_string
+  local version pkgrel has_dot_char version_min version_max constraint_string
   declare -i subver subver_inc pkgrel_inc
 
   if   [[ "${full_version}" =~ ^(${capture_rx})(${subver_rx})*-(${pkgrel_rx}).*$ ]]
   then version=${BASH_REMATCH[1]} # pkgver cut to the requested precision
        #unused=${BASH_REMATCH[2]} # discarded pkgver segments
        pkgrel=${BASH_REMATCH[3]}  # pkgrel with non-numerics right-trimmed
-       has_split_char=$(grep '\.' <<<${version} &> /dev/null ; echo $((! $?)) ; )
+       has_dot_char=$([[ "${version}" =~ \. ]] ; echo $(( ! $? )) ; )
        subver=$(sed "s|${garbage_rx}||" <<<${version##*.}) # right-trim from any non-numeric
-       version=$( ((has_split_char)) && echo ${version%.*}.${subver} || echo ${subver} )
+       version=$( (( has_dot_char )) && echo ${version%.*}.${subver} || echo ${subver} )
        subver_inc=$(( subver + 1 ))
        pkgrel_inc=$(( pkgrel + 1 ))
        version_min=$(   (( ! is_prec_valid    )) && echo ${full_version%-*}-${pkgrel} || \
@@ -118,11 +118,9 @@ build() {
 
 package() {
     # pin to strongly-coupled dependency versions
-    depends=( ${depends[*]/python-pyqt5/} )
-    depends=( ${depends[*]/qt5-base/}     )
-    depends+=( $(_version_constraint python       2) \
-               $(_version_constraint python-pyqt5  ) \
-               $(_version_constraint qt5-base     3) )
+    depends+=( $(_version_constraint python 2) )
+    depends=( ${depends[*]/python-pyqt5/} $(_version_constraint python-pyqt5  ) )
+    depends=( ${depends[*]/qt5-base/}     $(_version_constraint qt5-base     3) )
 
     cd "$pkgname-$pkgver"
     make -f misc/Makefile DESTDIR="$pkgdir" PREFIX=/usr install
diff --git a/pcr-testing/calamares/PKGBUILD b/pcr-testing/calamares/PKGBUILD
index 6c27f1e6e..962cd6416 100644
--- a/pcr-testing/calamares/PKGBUILD
+++ b/pcr-testing/calamares/PKGBUILD
@@ -30,7 +30,7 @@ _version_constraint() # (dep_pkgname [precision])
   local n_dots=$(tmp=${full_version%-*} ; tmp=${tmp//[^\.]} ; echo "${#tmp}" ;)
   local def_precision=$(( n_dots + 1 ))
   local is_prec_valid=$(( req_precision > 0 && req_precision <= def_precision ))
-  local precision=$( (( is_prec_valid )) && echo ${req_precision} || echo ${def_precision} )
+  local precision=$((( is_prec_valid )) && echo ${req_precision} || echo ${def_precision})
   local pkgver_rx='[0-9A-Za-z_]+'
   pkgver_rx=$(sed 's|\]|\+]|' <<<${pkgver_rx}) # according to the wiki, '+' is not allowed,
                                                # but some pkgver have it (eg: 5.15.10+kde+r130)
@@ -39,16 +39,16 @@ _version_constraint() # (dep_pkgname [precision])
   local garbage_rx='[^0-9].*'
   local capture_rx=${pkgver_rx}
   for (( n_dots=1 ; n_dots < precision ; ++n_dots )) ; do capture_rx+=${subver_rx} ; done ;
-  local version pkgrel has_split_char version_min version_max constraint_string
+  local version pkgrel has_dot_char version_min version_max constraint_string
   declare -i subver subver_inc pkgrel_inc
 
   if   [[ "${full_version}" =~ ^(${capture_rx})(${subver_rx})*-(${pkgrel_rx}).*$ ]]
   then version=${BASH_REMATCH[1]} # pkgver cut to the requested precision
        #unused=${BASH_REMATCH[2]} # discarded pkgver segments
        pkgrel=${BASH_REMATCH[3]}  # pkgrel with non-numerics right-trimmed
-       has_split_char=$(grep '\.' <<<${version} &> /dev/null ; echo $((! $?)) ; )
+       has_dot_char=$([[ "${version}" =~ \. ]] ; echo $(( ! $? )) ; )
        subver=$(sed "s|${garbage_rx}||" <<<${version##*.}) # right-trim from any non-numeric
-       version=$( ((has_split_char)) && echo ${version%.*}.${subver} || echo ${subver} )
+       version=$( (( has_dot_char )) && echo ${version%.*}.${subver} || echo ${subver} )
        subver_inc=$(( subver + 1 ))
        pkgrel_inc=$(( pkgrel + 1 ))
        version_min=$(   (( ! is_prec_valid    )) && echo ${full_version%-*}-${pkgrel} || \
@@ -93,10 +93,11 @@ build()
 
 package()
 {
-  depends+=( $(_version_constraint 'boost-libs') \
-             $(_version_constraint 'icu'       ) \
-             $(_version_constraint 'kpmcore'   ) \
-             $(_version_constraint 'qt5-base'  ) )
+  # pin to strongly-coupled dependency versions
+  depends=( ${depends[*]/boost-libs/} $(_version_constraint 'boost-libs') )
+  depends=( ${depends[*]/icu/}        $(_version_constraint 'icu'       ) )
+  depends=( ${depends[*]/kpmcore/}    $(_version_constraint 'kpmcore'   ) )
+  depends=( ${depends[*]/qt5-base/}   $(_version_constraint 'qt5-base'  ) )
 
   cd "${srcdir}"/${pkgname}/build
 
diff --git a/pcr/gnustep-gui/PKGBUILD b/pcr/gnustep-gui/PKGBUILD
index ec5110b2f..0ee33daef 100644
--- a/pcr/gnustep-gui/PKGBUILD
+++ b/pcr/gnustep-gui/PKGBUILD
@@ -56,7 +56,7 @@ _version_constraint() # (dep_pkgname [precision])
   local n_dots=$(tmp=${full_version%-*} ; tmp=${tmp//[^\.]} ; echo "${#tmp}" ;)
   local def_precision=$(( n_dots + 1 ))
   local is_prec_valid=$(( req_precision > 0 && req_precision <= def_precision ))
-  local precision=$( (( is_prec_valid )) && echo ${req_precision} || echo ${def_precision} )
+  local precision=$((( is_prec_valid )) && echo ${req_precision} || echo ${def_precision})
   local pkgver_rx='[0-9A-Za-z_]+'
   pkgver_rx=$(sed 's|\]|\+]|' <<<${pkgver_rx}) # according to the wiki, '+' is not allowed,
                                                # but some pkgver have it (eg: 5.15.10+kde+r130)
@@ -65,16 +65,16 @@ _version_constraint() # (dep_pkgname [precision])
   local garbage_rx='[^0-9].*'
   local capture_rx=${pkgver_rx}
   for (( n_dots=1 ; n_dots < precision ; ++n_dots )) ; do capture_rx+=${subver_rx} ; done ;
-  local version pkgrel has_split_char version_min version_max constraint_string
+  local version pkgrel has_dot_char version_min version_max constraint_string
   declare -i subver subver_inc pkgrel_inc
 
   if   [[ "${full_version}" =~ ^(${capture_rx})(${subver_rx})*-(${pkgrel_rx}).*$ ]]
   then version=${BASH_REMATCH[1]} # pkgver cut to the requested precision
        #unused=${BASH_REMATCH[2]} # discarded pkgver segments
        pkgrel=${BASH_REMATCH[3]}  # pkgrel with non-numerics right-trimmed
-       has_split_char=$(grep '\.' <<<${version} &> /dev/null ; echo $((! $?)) ; )
+       has_dot_char=$([[ "${version}" =~ \. ]] ; echo $(( ! $? )) ; )
        subver=$(sed "s|${garbage_rx}||" <<<${version##*.}) # right-trim from any non-numeric
-       version=$( ((has_split_char)) && echo ${version%.*}.${subver} || echo ${subver} )
+       version=$( (( has_dot_char )) && echo ${version%.*}.${subver} || echo ${subver} )
        subver_inc=$(( subver + 1 ))
        pkgrel_inc=$(( pkgrel + 1 ))
        version_min=$(   (( ! is_prec_valid    )) && echo ${full_version%-*}-${pkgrel} || \
@@ -101,6 +101,7 @@ build() {
 }
 
 package() {
+  # pin to strongly-coupled dependency versions
   depends+=( $(_version_constraint gnustep-base 2) )
 
   cd "$srcdir"/$pkgname-$pkgver
diff --git a/pcr/lightspark/PKGBUILD b/pcr/lightspark/PKGBUILD
index 6f4cbf823..3ad53adc8 100644
--- a/pcr/lightspark/PKGBUILD
+++ b/pcr/lightspark/PKGBUILD
@@ -41,7 +41,7 @@ _version_constraint() # (dep_pkgname [precision])
   local n_dots=$(tmp=${full_version%-*} ; tmp=${tmp//[^\.]} ; echo "${#tmp}" ;)
   local def_precision=$(( n_dots + 1 ))
   local is_prec_valid=$(( req_precision > 0 && req_precision <= def_precision ))
-  local precision=$( (( is_prec_valid )) && echo ${req_precision} || echo ${def_precision} )
+  local precision=$((( is_prec_valid )) && echo ${req_precision} || echo ${def_precision})
   local pkgver_rx='[0-9A-Za-z_]+'
   pkgver_rx=$(sed 's|\]|\+]|' <<<${pkgver_rx}) # according to the wiki, '+' is not allowed,
                                                # but some pkgver have it (eg: 5.15.10+kde+r130)
@@ -50,16 +50,16 @@ _version_constraint() # (dep_pkgname [precision])
   local garbage_rx='[^0-9].*'
   local capture_rx=${pkgver_rx}
   for (( n_dots=1 ; n_dots < precision ; ++n_dots )) ; do capture_rx+=${subver_rx} ; done ;
-  local version pkgrel has_split_char version_min version_max constraint_string
+  local version pkgrel has_dot_char version_min version_max constraint_string
   declare -i subver subver_inc pkgrel_inc
 
   if   [[ "${full_version}" =~ ^(${capture_rx})(${subver_rx})*-(${pkgrel_rx}).*$ ]]
   then version=${BASH_REMATCH[1]} # pkgver cut to the requested precision
        #unused=${BASH_REMATCH[2]} # discarded pkgver segments
        pkgrel=${BASH_REMATCH[3]}  # pkgrel with non-numerics right-trimmed
-       has_split_char=$(grep '\.' <<<${version} &> /dev/null ; echo $((! $?)) ; )
+       has_dot_char=$([[ "${version}" =~ \. ]] ; echo $(( ! $? )) ; )
        subver=$(sed "s|${garbage_rx}||" <<<${version##*.}) # right-trim from any non-numeric
-       version=$( ((has_split_char)) && echo ${version%.*}.${subver} || echo ${subver} )
+       version=$( (( has_dot_char )) && echo ${version%.*}.${subver} || echo ${subver} )
        subver_inc=$(( subver + 1 ))
        pkgrel_inc=$(( pkgrel + 1 ))
        version_min=$(   (( ! is_prec_valid    )) && echo ${full_version%-*}-${pkgrel} || \
@@ -105,7 +105,8 @@ build()
 
 package()
 {
-  depends+=( $(_version_constraint 'boost-libs') )
+  # pin to strongly-coupled dependency versions
+  depends=( ${depends[*]/boost-libs/} $(_version_constraint 'boost-libs') )
 
   cd "${srcdir}"/${pkgname}-${pkgver}/build
 
diff --git a/pcr/puzzlemoppet-git/PKGBUILD b/pcr/puzzlemoppet-git/PKGBUILD
index 0b0f0f09b..5b14babf2 100644
--- a/pcr/puzzlemoppet-git/PKGBUILD
+++ b/pcr/puzzlemoppet-git/PKGBUILD
@@ -29,7 +29,7 @@ _version_constraint() # (dep_pkgname [precision])
   local n_dots=$(tmp=${full_version%-*} ; tmp=${tmp//[^\.]} ; echo "${#tmp}" ;)
   local def_precision=$(( n_dots + 1 ))
   local is_prec_valid=$(( req_precision > 0 && req_precision <= def_precision ))
-  local precision=$( (( is_prec_valid )) && echo ${req_precision} || echo ${def_precision} )
+  local precision=$((( is_prec_valid )) && echo ${req_precision} || echo ${def_precision})
   local pkgver_rx='[0-9A-Za-z_]+'
   pkgver_rx=$(sed 's|\]|\+]|' <<<${pkgver_rx}) # according to the wiki, '+' is not allowed,
                                                # but some pkgver have it (eg: 5.15.10+kde+r130)
@@ -38,16 +38,16 @@ _version_constraint() # (dep_pkgname [precision])
   local garbage_rx='[^0-9].*'
   local capture_rx=${pkgver_rx}
   for (( n_dots=1 ; n_dots < precision ; ++n_dots )) ; do capture_rx+=${subver_rx} ; done ;
-  local version pkgrel has_split_char version_min version_max constraint_string
+  local version pkgrel has_dot_char version_min version_max constraint_string
   declare -i subver subver_inc pkgrel_inc
 
   if   [[ "${full_version}" =~ ^(${capture_rx})(${subver_rx})*-(${pkgrel_rx}).*$ ]]
   then version=${BASH_REMATCH[1]} # pkgver cut to the requested precision
        #unused=${BASH_REMATCH[2]} # discarded pkgver segments
        pkgrel=${BASH_REMATCH[3]}  # pkgrel with non-numerics right-trimmed
-       has_split_char=$(grep '\.' <<<${version} &> /dev/null ; echo $((! $?)) ; )
+       has_dot_char=$([[ "${version}" =~ \. ]] ; echo $(( ! $? )) ; )
        subver=$(sed "s|${garbage_rx}||" <<<${version##*.}) # right-trim from any non-numeric
-       version=$( ((has_split_char)) && echo ${version%.*}.${subver} || echo ${subver} )
+       version=$( (( has_dot_char )) && echo ${version%.*}.${subver} || echo ${subver} )
        subver_inc=$(( subver + 1 ))
        pkgrel_inc=$(( pkgrel + 1 ))
        version_min=$(   (( ! is_prec_valid    )) && echo ${full_version%-*}-${pkgrel} || \
@@ -90,9 +90,10 @@ build()
 
 package()
 {
-  cd "${srcdir}/${pkgname}/puzzlemoppet"
+  # pin to strongly-coupled dependency versions
+  depends=( ${depends[*]/ode/} $(_version_constraint 'ode') )
 
-  depends+=( $(_version_constraint 'ode') )
+  cd "${srcdir}/${pkgname}/puzzlemoppet"
 
   make install DESTDIR=$pkgdir
 }
diff --git a/pcr/pypolicyd-spf/PKGBUILD b/pcr/pypolicyd-spf/PKGBUILD
index 55ffda9ef..d2236a077 100644
--- a/pcr/pypolicyd-spf/PKGBUILD
+++ b/pcr/pypolicyd-spf/PKGBUILD
@@ -36,7 +36,7 @@ _version_constraint() # (dep_pkgname [precision])
   local n_dots=$(tmp=${full_version%-*} ; tmp=${tmp//[^\.]} ; echo "${#tmp}" ;)
   local def_precision=$(( n_dots + 1 ))
   local is_prec_valid=$(( req_precision > 0 && req_precision <= def_precision ))
-  local precision=$( (( is_prec_valid )) && echo ${req_precision} || echo ${def_precision} )
+  local precision=$((( is_prec_valid )) && echo ${req_precision} || echo ${def_precision})
   local pkgver_rx='[0-9A-Za-z_]+'
   pkgver_rx=$(sed 's|\]|\+]|' <<<${pkgver_rx}) # according to the wiki, '+' is not allowed,
                                                # but some pkgver have it (eg: 5.15.10+kde+r130)
@@ -45,16 +45,16 @@ _version_constraint() # (dep_pkgname [precision])
   local garbage_rx='[^0-9].*'
   local capture_rx=${pkgver_rx}
   for (( n_dots=1 ; n_dots < precision ; ++n_dots )) ; do capture_rx+=${subver_rx} ; done ;
-  local version pkgrel has_split_char version_min version_max constraint_string
+  local version pkgrel has_dot_char version_min version_max constraint_string
   declare -i subver subver_inc pkgrel_inc
 
   if   [[ "${full_version}" =~ ^(${capture_rx})(${subver_rx})*-(${pkgrel_rx}).*$ ]]
   then version=${BASH_REMATCH[1]} # pkgver cut to the requested precision
        #unused=${BASH_REMATCH[2]} # discarded pkgver segments
        pkgrel=${BASH_REMATCH[3]}  # pkgrel with non-numerics right-trimmed
-       has_split_char=$(grep '\.' <<<${version} &> /dev/null ; echo $((! $?)) ; )
+       has_dot_char=$([[ "${version}" =~ \. ]] ; echo $(( ! $? )) ; )
        subver=$(sed "s|${garbage_rx}||" <<<${version##*.}) # right-trim from any non-numeric
-       version=$( ((has_split_char)) && echo ${version%.*}.${subver} || echo ${subver} )
+       version=$( (( has_dot_char )) && echo ${version%.*}.${subver} || echo ${subver} )
        subver_inc=$(( subver + 1 ))
        pkgrel_inc=$(( pkgrel + 1 ))
        version_min=$(   (( ! is_prec_valid    )) && echo ${full_version%-*}-${pkgrel} || \
@@ -80,7 +80,8 @@ build() {
 }
 
 package() {
-  depends+=( $(_version_constraint 'python') )
+  # pin to strongly-coupled dependency versions
+  depends=( ${depends[*]/python/} $(_version_constraint python 2) )
 
   cd "$srcdir"/$pkgname-$pkgver
 
diff --git a/pcr/python-py3dns/PKGBUILD b/pcr/python-py3dns/PKGBUILD
index d3b685405..4f1e33ccb 100644
--- a/pcr/python-py3dns/PKGBUILD
+++ b/pcr/python-py3dns/PKGBUILD
@@ -31,7 +31,7 @@ _version_constraint() # (dep_pkgname [precision])
   local n_dots=$(tmp=${full_version%-*} ; tmp=${tmp//[^\.]} ; echo "${#tmp}" ;)
   local def_precision=$(( n_dots + 1 ))
   local is_prec_valid=$(( req_precision > 0 && req_precision <= def_precision ))
-  local precision=$( (( is_prec_valid )) && echo ${req_precision} || echo ${def_precision} )
+  local precision=$((( is_prec_valid )) && echo ${req_precision} || echo ${def_precision})
   local pkgver_rx='[0-9A-Za-z_]+'
   pkgver_rx=$(sed 's|\]|\+]|' <<<${pkgver_rx}) # according to the wiki, '+' is not allowed,
                                                # but some pkgver have it (eg: 5.15.10+kde+r130)
@@ -40,16 +40,16 @@ _version_constraint() # (dep_pkgname [precision])
   local garbage_rx='[^0-9].*'
   local capture_rx=${pkgver_rx}
   for (( n_dots=1 ; n_dots < precision ; ++n_dots )) ; do capture_rx+=${subver_rx} ; done ;
-  local version pkgrel has_split_char version_min version_max constraint_string
+  local version pkgrel has_dot_char version_min version_max constraint_string
   declare -i subver subver_inc pkgrel_inc
 
   if   [[ "${full_version}" =~ ^(${capture_rx})(${subver_rx})*-(${pkgrel_rx}).*$ ]]
   then version=${BASH_REMATCH[1]} # pkgver cut to the requested precision
        #unused=${BASH_REMATCH[2]} # discarded pkgver segments
        pkgrel=${BASH_REMATCH[3]}  # pkgrel with non-numerics right-trimmed
-       has_split_char=$(grep '\.' <<<${version} &> /dev/null ; echo $((! $?)) ; )
+       has_dot_char=$([[ "${version}" =~ \. ]] ; echo $(( ! $? )) ; )
        subver=$(sed "s|${garbage_rx}||" <<<${version##*.}) # right-trim from any non-numeric
-       version=$( ((has_split_char)) && echo ${version%.*}.${subver} || echo ${subver} )
+       version=$( (( has_dot_char )) && echo ${version%.*}.${subver} || echo ${subver} )
        subver_inc=$(( subver + 1 ))
        pkgrel_inc=$(( pkgrel + 1 ))
        version_min=$(   (( ! is_prec_valid    )) && echo ${full_version%-*}-${pkgrel} || \
@@ -69,7 +69,8 @@ _version_constraint() # (dep_pkgname [precision])
 
 
 package() {
-  depends+=( $(_version_constraint 'python') )
+  # pin to strongly-coupled dependency versions
+  depends=( ${depends[*]/python/} $(_version_constraint python 2) )
 
   cd "$srcdir"/$_pkgname-$pkgver
 
diff --git a/pcr/python-pyspf/PKGBUILD b/pcr/python-pyspf/PKGBUILD
index 807be14e4..bf5a8b622 100644
--- a/pcr/python-pyspf/PKGBUILD
+++ b/pcr/python-pyspf/PKGBUILD
@@ -30,7 +30,7 @@ _version_constraint() # (dep_pkgname [precision])
   local n_dots=$(tmp=${full_version%-*} ; tmp=${tmp//[^\.]} ; echo "${#tmp}" ;)
   local def_precision=$(( n_dots + 1 ))
   local is_prec_valid=$(( req_precision > 0 && req_precision <= def_precision ))
-  local precision=$( (( is_prec_valid )) && echo ${req_precision} || echo ${def_precision} )
+  local precision=$((( is_prec_valid )) && echo ${req_precision} || echo ${def_precision})
   local pkgver_rx='[0-9A-Za-z_]+'
   pkgver_rx=$(sed 's|\]|\+]|' <<<${pkgver_rx}) # according to the wiki, '+' is not allowed,
                                                # but some pkgver have it (eg: 5.15.10+kde+r130)
@@ -39,16 +39,16 @@ _version_constraint() # (dep_pkgname [precision])
   local garbage_rx='[^0-9].*'
   local capture_rx=${pkgver_rx}
   for (( n_dots=1 ; n_dots < precision ; ++n_dots )) ; do capture_rx+=${subver_rx} ; done ;
-  local version pkgrel has_split_char version_min version_max constraint_string
+  local version pkgrel has_dot_char version_min version_max constraint_string
   declare -i subver subver_inc pkgrel_inc
 
   if   [[ "${full_version}" =~ ^(${capture_rx})(${subver_rx})*-(${pkgrel_rx}).*$ ]]
   then version=${BASH_REMATCH[1]} # pkgver cut to the requested precision
        #unused=${BASH_REMATCH[2]} # discarded pkgver segments
        pkgrel=${BASH_REMATCH[3]}  # pkgrel with non-numerics right-trimmed
-       has_split_char=$(grep '\.' <<<${version} &> /dev/null ; echo $((! $?)) ; )
+       has_dot_char=$([[ "${version}" =~ \. ]] ; echo $(( ! $? )) ; )
        subver=$(sed "s|${garbage_rx}||" <<<${version##*.}) # right-trim from any non-numeric
-       version=$( ((has_split_char)) && echo ${version%.*}.${subver} || echo ${subver} )
+       version=$( (( has_dot_char )) && echo ${version%.*}.${subver} || echo ${subver} )
        subver_inc=$(( subver + 1 ))
        pkgrel_inc=$(( pkgrel + 1 ))
        version_min=$(   (( ! is_prec_valid    )) && echo ${full_version%-*}-${pkgrel} || \
@@ -74,7 +74,8 @@ build() {
 }
 
 package() {
-  depends+=( $(_version_constraint 'python') )
+  # pin to strongly-coupled dependency versions
+  depends=( ${depends[*]/python/} $(_version_constraint python 2) )
 
   cd "$srcdir/pyspf-$pkgver"