From: Emil Velikov <emil.l.velikov@xxxxxxxxx>
Earlier commit was reducing the license boilerplate to SPDX license
identifiers and erroneously dropped the function summary section.
Cc: Lucas De Marchi <lucas.de.marchi@xxxxxxxxx>
Fixes: b5a2cd0 ("Use SPDX header for license")
Signed-off-by: Emil Velikov <emil.l.velikov@xxxxxxxxx>
---
m4/attributes.m4 | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/m4/attributes.m4 b/m4/attributes.m4
index 69865ee..a22bb58 100644
--- a/m4/attributes.m4
+++ b/m4/attributes.m4
@@ -4,6 +4,11 @@
# Copyright (c) 2006-2008 xine project
# Copyright (c) 2012 Lucas De Marchi <lucas.de.marchi@xxxxxxxxx>
+# Check if FLAG in ENV-VAR is supported by compiler and append it
+# to WHERE-TO-APPEND variable. Note that we invert -Wno-* checks to
+# -W* as gcc cannot test for negated warnings.
+# CC_CHECK_FLAG_APPEND([WHERE-TO-APPEND], [ENV-VAR], [FLAG])
+
AC_DEFUN([CC_CHECK_FLAG_APPEND], [
AC_CACHE_CHECK([if $CC supports flag $3 in envvar $2],
AS_TR_SH([cc_cv_$2_$3]),
--
2.45.2
