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m4: reinstate CC_CHECK_FLAG_APPEND summary

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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@gmail.com>
Fixes: b5a2cd0 ("Use SPDX header for license")
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Signed-off-by: Lucas De Marchi <lucas.de.marchi@gmail.com>
This commit is contained in:
Emil Velikov 2024-08-10 13:25:15 +01:00 committed by Lucas De Marchi
parent af21689dd0
commit 0cdd984720
1 changed files with 5 additions and 0 deletions
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m4/attributes.m4
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@ -4,6 +4,11 @@
# Copyright (c) 2006-2008 xine project
# Copyright (c) 2012 Lucas De Marchi <lucas.de.marchi@gmail.com>
# 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]),