61 lines
1.9 KiB
Plaintext
61 lines
1.9 KiB
Plaintext
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## -*- Autoconf -*-
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# Copyright (C) 2009-2013 Free Software Foundation, Inc.
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#
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# This file is free software; the Free Software Foundation
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# gives unlimited permission to copy and/or distribute it,
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# with or without modifications, as long as this notice is preserved.
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# AM_SILENT_RULES([DEFAULT])
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# --------------------------
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# Enable less verbose build rules; with the default set to DEFAULT
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# ("yes" being less verbose, "no" or empty being verbose).
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AC_DEFUN([AM_SILENT_RULES],
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[AC_ARG_ENABLE([silent-rules], [dnl
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AS_HELP_STRING(
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[--enable-silent-rules],
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[less verbose build output (undo: "make V=1")])
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AS_HELP_STRING(
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[--disable-silent-rules],
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[verbose build output (undo: "make V=0")])dnl
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])
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case $enable_silent_rules in @%:@ (((
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yes) AM_DEFAULT_VERBOSITY=0;;
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no) AM_DEFAULT_VERBOSITY=1;;
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*) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
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esac
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dnl
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dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
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dnl do not support nested variable expansions.
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dnl See automake bug#9928 and bug#10237.
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am_make=${MAKE-make}
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AC_CACHE_CHECK([whether $am_make supports nested variables],
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[am_cv_make_support_nested_variables],
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[if AS_ECHO([['TRUE=$(BAR$(V))
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BAR0=false
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BAR1=true
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V=1
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am__doit:
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@$(TRUE)
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.PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
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am_cv_make_support_nested_variables=yes
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else
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am_cv_make_support_nested_variables=no
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fi])
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if test $am_cv_make_support_nested_variables = yes; then
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dnl Using '$V' instead of '$(V)' breaks IRIX make.
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AM_V='$(V)'
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AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
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else
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AM_V=$AM_DEFAULT_VERBOSITY
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AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
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fi
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AC_SUBST([AM_V])dnl
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AM_SUBST_NOTMAKE([AM_V])dnl
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AC_SUBST([AM_DEFAULT_V])dnl
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AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
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AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
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AM_BACKSLASH='\'
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AC_SUBST([AM_BACKSLASH])dnl
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_AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
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])
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