1 files changed, 16 insertions, 0 deletions
diff --git a/vcpkg/ports/gettext/bashify.cmake b/vcpkg/ports/gettext/bashify.cmake
new file mode 100644
index 0000000..8b3d87e
--- /dev/null
+++ b/vcpkg/ports/gettext/bashify.cmake
@@ -0,0 +1,16 @@
+# By using bash builtin expansion, we can avoid
+# expensively spawing three sub-processes (bash, echo, sed).
+foreach(dir IN LISTS SOURCE_DIRS)
+    file(READ "${dir}/configure" script)
+    string(REGEX REPLACE
+        "(\n[a-zA-Z0-9_]*)='`[\$]ECHO \"[\$]([^\"]*)\" \\| [\$]SED \"[\$]delay_single_quote_subst\"`'"
+        [[\1='${\2//\\'/\\'\\\\\\'\\'}']]
+        script "${script}"
+    )
+    string(REPLACE
+        [[    case \`eval \\\\\$ECHO \\\\""\\\\\$\$var"\\\\"\` in]]
+        [[    case "\${!var}" in]]
+        script "${script}"
+    )
+    file(WRITE "${dir}/configure" "${script}")
+endforeach()