configure: == operator is not portable

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In configure script, the == operator is not portable (not all sh-based shells accept it).

Fix:

--- configure.orig  2024-06-04 15:10:47.211941639 +0000
+++ configure
@@ -11057,7 +11057,7 @@ fi

 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for --enable-static" >&5
 printf %s "checking for --enable-static... " >&6; }
-if test "x$enable_static" == "xyes"; then
+if test "x$enable_static" = "xyes"; then
   CFLAGS="$CFLAGS -static"
   LDFLAGS="$LDFLAGS -static"
   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5

Genivia / ugrep

configure: == operator is not portable #402