ghostscript: fix cross for armv7l (#363237)

pkgs/by-name/gh/ghostscript/package.nix

···
     sed "s@if ( test -f \$(INCLUDE)[^ ]* )@if ( true )@; s@INCLUDE=/usr/include@INCLUDE=/no-such-path@" -i base/unix-aux.mak
     sed "s@^ZLIBDIR=.*@ZLIBDIR=${zlib.dev}/include@" -i configure.ac
 
+    # Sidestep a bug in autoconf-2.69 that sets the compiler for all checks to
+    # $CXX after the part for the vendored copy of tesseract.
+    # `--without-tesseract` is already passed to the outer ./configure, here we
+    # make sure it is also passed to its recursive invocation for buildPlatform
+    # checks when cross-compiling.
+    substituteInPlace configure.ac \
+      --replace-fail "--without-x" "--without-x --without-tesseract"
+
     autoconf
   '' + lib.optionalString stdenv.hostPlatform.isDarwin ''
     export DARWIN_LDFLAGS_SO_PREFIX=$out/lib/