(autoloads, custom-deps): Warn that parts of commands enclosed in $(ARGQUOTE)s

should not be split between two lines, as that will break with GNU Make >3.80,
when sh.exe is used and arg quoting is with '..'.
(autoloads): Don't break the quoted --eval expression between several lines.

1 files changed, 6 insertions, 4 deletions

diff --git a/lisp/makefile.w32-in b/lisp/makefile.w32-in
index 31e31442378..35b9f1cbd28 100644
--- a/lisp/makefile.w32-in
+++ b/lisp/makefile.w32-in
@@ -97,6 +97,8 @@ doit:
 
 $(lisp)/cus-load.el:
         touch $@
+# WARNING: Do NOT split the part inside $(ARGQUOTE)s into multiple lines as
+#          this can break with GNU Make 3.81 and later if sh.exe is used.
 custom-deps: $(lisp)/cus-load.el doit
         @echo Directories: $(WINS)
         -$(emacs) -l cus-dep --eval $(ARGQUOTE)(setq find-file-hook nil)$(ARGQUOTE) -f custom-make-dependencies $(lisp) $(WINS)
@@ -150,13 +152,13 @@ loaddefs.el-CMD:
 # including a drive letter and any leading directories, so the generated
 # loaddefs.el will mention file names that on other machine reference
 # possibly non-existent directories.
+#
+# WARNING: Do NOT split the part inside $(ARGQUOTE)s into multiple lines as
+#          this can break with GNU Make 3.81 and later if sh.exe is used.
 autoloads: $(lisp)/loaddefs.el doit
         @echo Directories: . $(WINS)
         $(emacs) -l autoload \
-                --eval $(ARGQUOTE)(setq find-file-hook nil \
-                        find-file-suppress-same-file-warnings t \
-                        generated-autoload-file \
-                          $(DQUOTE)$(lisp)/loaddefs.el$(DQUOTE))$(ARGQUOTE) \
+                --eval $(ARGQUOTE)(setq find-file-hook nil find-file-suppress-same-file-warnings t generated-autoload-file $(DQUOTE)$(lisp)/loaddefs.el$(DQUOTE))$(ARGQUOTE) \
                 -f batch-update-autoloads . $(WINS)
 
 $(lisp)/subdirs.el: