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Reintroduce "Fix detection of unknown gcc function attributes" #9586

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Reintroduce "Fix detection of unknown gcc function attributes" #9586

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66b9e42
Fix detection of unknown gcc function attributes
athos-ribeiro Sep 20, 2022
2555ec4
Support Clang in ax_gcc_func_attribute.m4
athos-ribeiro Sep 22, 2022
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2 changes: 1 addition & 1 deletion build/ax_gcc_func_attribute.m4
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Original file line number Diff line number Diff line change
Expand Up @@ -227,7 +227,7 @@ AC_DEFUN([AX_GCC_FUNC_ATTRIBUTE], [
dnl GCC doesn't exit with an error if an unknown attribute is
dnl provided but only outputs a warning, so accept the attribute
dnl only if no warning were issued.
[AS_IF([test -s conftest.err],
[AS_IF([grep -- '-W\(unknown-\)\?attributes' conftest.err],
[AS_VAR_SET([ac_var], [no])],
[AS_VAR_SET([ac_var], [yes])])],
[AS_VAR_SET([ac_var], [no])])
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