Remove extraneous is_mac call

plugins/python-build/bin/python-build

@@ -1330,7 +1330,7 @@ use_homebrew() {
   can_use_homebrew || return 1
   # unless Homebrew is at the default /usr/local, need to add its paths to
   # compiler search to be able to use non-keg-only deps from there
-  if is_mac && command -v brew &>/dev/null; then
+  if command -v brew &>/dev/null; then
     local brew_prefix="$(brew --prefix 2>/dev/null || true)"
     # /usr/local/lib:/usr/lib is the default library search path
     if [[ -n $brew_prefix && $brew_prefix != "/usr" && $brew_prefix != "/usr/local" ]]; then

plugins/python-build/test/build.bats

@@ -151,7 +151,7 @@ OUT
   BREW_PREFIX="$TMP/homebrew-prefix"
   mkdir -p "$BREW_PREFIX"
 
-  for i in {1..9}; do stub uname '-s : echo Darwin'; done
+  for i in {1..8}; do stub uname '-s : echo Darwin'; done
   for i in {1..2}; do stub sw_vers '-productVersion : echo 1010'; done
   stub brew "--prefix : echo '$BREW_PREFIX'" false
   stub_make_install
@@ -179,7 +179,7 @@ OUT
   brew_libdir="$TMP/homebrew-yaml"
   mkdir -p "$brew_libdir"
 
-  for i in {1..10}; do stub uname '-s : echo Darwin'; done
+  for i in {1..9}; do stub uname '-s : echo Darwin'; done
   for i in {1..2}; do stub sw_vers '-productVersion : echo 1010'; done
   stub brew "--prefix libyaml : echo '$brew_libdir'"
   for i in {1..4}; do stub brew false; done
@@ -234,7 +234,7 @@ OUT
 
   readline_libdir="$TMP/homebrew-readline"
   mkdir -p "$readline_libdir"
-  for i in {1..8}; do stub uname '-s : echo Darwin'; done
+  for i in {1..7}; do stub uname '-s : echo Darwin'; done
   for i in {1..2}; do stub sw_vers '-productVersion : echo 1010'; done
   for i in {1..2}; do stub brew false; done
   stub brew "--prefix readline : echo '$readline_libdir'"
@@ -317,7 +317,7 @@ OUT
   mkdir -p "$readline_libdir/include/readline"
   touch "$readline_libdir/include/readline/rlconf.h"
 
-  for i in {1..8}; do stub uname '-s : echo Darwin'; done
+  for i in {1..7}; do stub uname '-s : echo Darwin'; done
   for i in {1..2}; do stub sw_vers '-productVersion : echo 1010'; done
 
   for i in {1..3}; do stub brew false; done
@@ -349,7 +349,7 @@ OUT
   mkdir -p "$tcl_tk_libdir/lib"
   echo "TCL_VERSION='$tcl_tk_version'" >>"$tcl_tk_libdir/lib/tclConfig.sh"
 
-  for i in {1..10}; do stub uname '-s : echo Darwin'; done
+  for i in {1..9}; do stub uname '-s : echo Darwin'; done
   for i in {1..2}; do stub sw_vers '-productVersion : echo 1010'; done
 
   stub brew false
@@ -383,7 +383,7 @@ OUT
   tcl_tk_version_long="8.6.10"
   tcl_tk_version="${tcl_tk_version_long%.*}"
 
-  for i in {1..9}; do stub uname '-s : echo Darwin'; done
+  for i in {1..8}; do stub uname '-s : echo Darwin'; done
   for i in {1..2}; do stub sw_vers '-productVersion : echo 1010'; done
 
   for i in {1..4}; do stub brew false; done
@@ -411,7 +411,7 @@ OUT
 @test "number of CPU cores defaults to 2" {
   cached_tarball "Python-3.6.2"
 
-  for i in {1..10}; do stub uname '-s : echo Darwin'; done
+  for i in {1..9}; do stub uname '-s : echo Darwin'; done
   for i in {1..2}; do stub sw_vers '-productVersion : echo 10.10'; done
 
   stub sysctl false
@@ -438,7 +438,7 @@ OUT
 @test "number of CPU cores is detected on Mac" {
   cached_tarball "Python-3.6.2"
 
-  for i in {1..10}; do stub uname '-s : echo Darwin'; done
+  for i in {1..9}; do stub uname '-s : echo Darwin'; done
   for i in {1..2}; do stub sw_vers '-productVersion : echo 10.10'; done
 
   stub sysctl '-n hw.ncpu : echo 4'

plugins/python-build/test/compiler.bats

@@ -63,7 +63,7 @@ DEF
   mkdir -p "$INSTALL_ROOT"
   cd "$INSTALL_ROOT"
 
-  for i in {1..10}; do stub uname '-s : echo Darwin'; done
+  for i in {1..9}; do stub uname '-s : echo Darwin'; done
   for i in {1..3}; do stub sw_vers '-productVersion : echo 10.10'; done
 
   stub cc 'false'