### verbose.mk --- Makefile fragment for GNU Emacs

## Copyright (C) 2021-2022 Free Software Foundation, Inc.

## This file is part of GNU Emacs.

## GNU Emacs is free software: you can redistribute it and/or modify
## it under the terms of the GNU General Public License as published by
## the Free Software Foundation, either version 3 of the License, or
## (at your option) any later version.
##
## GNU Emacs is distributed in the hope that it will be useful,
## but WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
## GNU General Public License for more details.
##
## You should have received a copy of the GNU General Public License
## along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.

# Use two empty lines to define a macro containing a newline.
define newline


endef

# Work around a bug in GNU Make 4.3 and earlier, which implements $(info MSG)
# via two system calls { write (..., "MSG", 3); write (..., "\n", 1); }
# which looks bad when make -j interleaves two of these at about the same time.
# Later versions of GNU Make have the 'notintermediate' feature,
# so assume that $(info ...) has the bug if this feature is absent.
# The workaround arranges for 'MSG' itself to end in newline;
# although this follows every message by an empty line,
# that's better than the interleaved output.
ifeq (,$(filter notintermediate,$(value .FEATURES)))
info-trailing-newline = $(newline)
else
info-trailing-newline =
endif

# 'make' verbosity.
V = @AM_DEFAULT_VERBOSITY@
ifeq (${V},1)
AM_V_AR =
AM_V_at =
AM_V_CC =
AM_V_CXX =
AM_V_CCLD =
AM_V_CXXLD =
AM_V_ELC =
AM_V_ELN =
AM_V_GEN =
AM_V_GLOBALS =
AM_V_NO_PD =
AM_V_RC =
else
AM_V_AR      = @$(info $   AR       $@$(info-trailing-newline))
AM_V_at = @
AM_V_CC      = @$(info $   CC       $@$(info-trailing-newline))
AM_V_CXX     = @$(info $   CXX      $@$(info-trailing-newline))
AM_V_CCLD    = @$(info $   CCLD     $@$(info-trailing-newline))
AM_V_CXXLD   = @$(info $   CXXLD    $@$(info-trailing-newline))
ifeq ($(HAVE_NATIVE_COMP),yes)
ifeq ($(NATIVE_DISABLED),1)
AM_V_ELC     = @$(info $   ELC      $@$(info-trailing-newline))
AM_V_ELN =
else
AM_V_ELC     = @$(info $   ELC+ELN  $@$(info-trailing-newline))
AM_V_ELN     = @$(info $   ELN      $@$(info-trailing-newline))
endif
else
AM_V_ELC     = @$(info $   ELC      $@$(info-trailing-newline))
AM_V_ELN =
endif
AM_V_GEN     = @$(info $   GEN      $@$(info-trailing-newline))
AM_V_GLOBALS = @$(info $   GEN      globals.h)
AM_V_NO_PD = --no-print-directory
AM_V_RC      = @$(info $   RC       $@$(info-trailing-newline))
endif