$NetBSD: patch-common-modified_gst-glib-gen.mak,v 1.1 2021/05/03 08:34:37 wiz Exp $ GNU Make 4.3 has a backwards incompatible change affecting the use of number signs or hashes (ie., #) inside function invocations. See: https://lists.gnu.org/archive/html/info-gnu/2020-01/msg00004.html In this case, it would expand the '\#' in the '\n\#include \"$(h)\"' argument to the foreach call to '\#', not '#'. This would lead to spurious backslashes in front of the '#include' directives in the generated fs-enumtypes.c file. Spotted by Ernestas Kulik. https://gitlab.freedesktop.org/farstream/farstream/-/commit/54987d445ea714b467d901b7daf8c09ed0644189 --- common-modified/gst-glib-gen.mak.orig 2020-03-11 21:05:08.000000000 +0000 +++ common-modified/gst-glib-gen.mak @@ -6,7 +6,8 @@ #glib_gen_prefix=gst_color_balance #glib_gen_basename=colorbalance -enum_headers=$(foreach h,$(glib_enum_headers),\n\#include \"$(h)\") +hash:=\# +enum_headers=$(foreach h,$(glib_enum_headers),\n$(hash)include \"$(h)\") # these are all the rules generating the relevant files $(glib_gen_basename)-enumtypes.h: $(glib_enum_headers)