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author Vas Crabb <vas@vastheman.com>2020-10-15 04:28:42 +1100
committer Vas Crabb <vas@vastheman.com>2020-10-15 04:28:42 +1100
commitd256f069a5aa30bf5ffcfc4b73047ce0f372ea10 (patch)
tree8df1bd2e70d7e15e59928203d0eb687c82307bff /3rdparty/expat/conftools/ax-require-defined.m4
parent13850f3011e000307925aefd918efe2f0ce6649d (diff)
-3rdparty/expat: Update to 2.2.10."
-Fixed tiny build (missing s11c_bg_device) and unused lambda capture in emu/rendlay.cpp.
Diffstat (limited to '3rdparty/expat/conftools/ax-require-defined.m4')
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1 files changed, 37 insertions, 0 deletions
diff --git a/3rdparty/expat/conftools/ax-require-defined.m4 b/3rdparty/expat/conftools/ax-require-defined.m4
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+# ===========================================================================
+# https://www.gnu.org/software/autoconf-archive/ax_require_defined.html
+# ===========================================================================
+#
+# SYNOPSIS
+#
+# AX_REQUIRE_DEFINED(MACRO)
+#
+# DESCRIPTION
+#
+# AX_REQUIRE_DEFINED is a simple helper for making sure other macros have
+# been defined and thus are available for use. This avoids random issues
+# where a macro isn't expanded. Instead the configure script emits a
+# non-fatal:
+#
+# ./configure: line 1673: AX_CFLAGS_WARN_ALL: command not found
+#
+# It's like AC_REQUIRE except it doesn't expand the required macro.
+#
+# Here's an example:
+#
+# AX_REQUIRE_DEFINED([AX_CHECK_LINK_FLAG])
+#
+# LICENSE
+#
+# Copyright (c) 2014 Mike Frysinger <vapier@gentoo.org>
+#
+# Copying and distribution of this file, with or without modification, are
+# permitted in any medium without royalty provided the copyright notice
+# and this notice are preserved. This file is offered as-is, without any
+# warranty.
+
+#serial 2
+
+AC_DEFUN([AX_REQUIRE_DEFINED], [dnl
+ m4_ifndef([$1], [m4_fatal([macro ]$1[ is not defined; is a m4 file missing?])])
+])dnl AX_REQUIRE_DEFINED