Hi, Make (not Automake) can use the following snippet to define a newline variable:
--8<---------------cut here---------------start------------->8--- define newline endef --8<---------------cut here---------------end--------------->8--- Note the two empty lines (info "(make) Multi-Line"). I tried to use this trick with Automake, but it strips one line in the generated Makefile. This is how I tried using it: --8<---------------cut here---------------start------------->8--- # Produce a warning/hint in cases where the Guix-provided hooks won't be # installed. define NL endef ifneq ($(GIT_CORE_HOOKS_PATH),) $(warning Not installing Guix-provided git hooks; global hooks path set$(NL)\ tip: unset global git hooks path) @ENDIF@ ifeq ($(GIT_HOOKS_DIR),) $(warning Not installing Guix-provided git hooks; hooks dir not found$(NL)\ tip: do not use container environment when using a git worktree) @ENDIF@ ifeq ($(GIT_CONFIG_FILE),) $(warning Not installing Guix-provided git configurations; \ git config file not found$(NL)\ tip: do not use container environment when using a git worktree) @ENDIF@ --8<---------------cut here---------------end--------------->8--- Note that the @ENDIF@ hack to avoid Automake tripping on Make 'endif' syntax is from <https://lists.gnu.org/archive/html/bug-automake/2001-11/msg00015.html>. This part appears to work correctly here. But the NL variable in the produced Makefile looks like: --8<---------------cut here---------------start------------->8--- define NL endef --8<---------------cut here---------------end--------------->8--- Which I think is the reason the warning messages do not contain the newline as I wanted them to: --8<---------------cut here---------------start------------->8--- Makefile:8677: Not installing Guix-provided git hooks; hooks dir not found tip: do not use container environment when using a git worktree --8<---------------cut here---------------end--------------->8--- Any idea how to accomplish this in Automake? -- Thanks, Maxim
