45 lines
1.7 KiB
Diff
45 lines
1.7 KiB
Diff
From 6ef67cff6ba26645f9cbe23ffb401f3d49a66429 Mon Sep 17 00:00:00 2001
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From: Simon McVittie <smcv@collabora.com>
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Date: Mon, 21 Jan 2019 14:28:24 +0000
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Subject: configure.ac: Forbid AX_-prefixed patterns more selectively
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We want to make autoconf fail early and with a user-comprehensible
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message if autoconf-archive isn't installed, rather than generating
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a configure script with syntax errors, or a configure script that runs
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successfully but doesn't do what we intended.
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However, autoconf-archive doesn't actually guarantee not to use
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AX_-prefixed shell variable names without m4_pattern_allow'ing them
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(unlike Autoconf, Automake, Libtool and pkg-config, which explicitly use
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m4_pattern_allow for variables with AC_, AM_, LT_ and PKG_ prefixes), so
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it isn't safe to assume that they won't be used. In particular, recent
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versions of AX_CHECK_GNU_MAKE appear to be using
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$AX_CHECK_GNU_MAKE_HEADLINE as a shell variable.
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Instead, specifically forbid the names of the finite list of macros
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that we actually use.
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Signed-off-by: Simon McVittie <smcv@collabora.com>
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Resolves: dbus#249
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(cherry picked from commit ee09cc0acdc1c34e8ae999adf9922f3d0d66f407)
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---
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configure.ac | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/configure.ac b/configure.ac
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index cc86860..d876a2f 100644
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--- a/configure.ac
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+++ b/configure.ac
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@@ -10,7 +10,7 @@ AC_INIT([dbus],[dbus_version],[https://bugs.freedesktop.org/enter_bug.cgi?produc
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AC_CONFIG_AUX_DIR([build-aux])
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-m4_pattern_forbid([^AX_],
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+m4_pattern_forbid([^AX_(CHECK_ENABLE_DEBUG|CODE_COVERAGE|COMPILER_FLAGS|COMPILER_FLAGS_(CFLAGS|CXXFLAGS|LDFLAGS))\b],
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[Unexpanded AX_ macro found. Please install GNU autoconf-archive])
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AC_CANONICAL_HOST
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--
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cgit v1.1
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