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ac044812d0
Selects __PRETTY_FUNCTION__ or __func__. Linux assumes GNU, and chooses
__PRETTY_FUNCTION__ if gcc/g++ versions are favorable.
This also includes a fix in ax_c_var_func.m4:
AC_TRY_COMPILE will wrap the test in main{}, and then GCC will complain
about nested functions. Just use the original main{} body.
diff --git a/m4/ax_c_var_func.m4 b/m4/ax_c_var_func.m4
index 0ad7d2b..8b57563 100644
--- a/m4/ax_c_var_func.m4
+++ b/m4/ax_c_var_func.m4
@@ -57,9 +57,9 @@ AC_DEFUN([AX_C_VAR_FUNC],
[AC_REQUIRE([AC_PROG_CC])
AC_CACHE_CHECK(whether $CC recognizes __func__, ac_cv_c_var_func,
AC_TRY_COMPILE(,
-[int main() {
+[
char *s = __func__;
-}],
+],
AC_DEFINE(HAVE_FUNC,,
[Define if the C complier supports __func__]) ac_cv_c_var_func=yes,
ac_cv_c_var_func=no) )
Signed-off-by: Noah Watkins <noahwatkins@gmail.com>
19 lines
487 B
Plaintext
19 lines
487 B
Plaintext
#
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# Test for C compiler support of __PRETTY_FUNCTION__
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#
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# - Adapted from ax_c_var_func (Noah Watkins)
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#
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AU_ALIAS([AC_C_PRETTY_FUNC], [AX_C_PRETTY_FUNC])
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AC_DEFUN([AX_C_PRETTY_FUNC],
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[AC_REQUIRE([AC_PROG_CC])
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AC_CACHE_CHECK(whether $CC recognizes __PRETTY_FUNCTION__, ac_cv_c_pretty_func,
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AC_TRY_COMPILE(,
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[
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char *s = __PRETTY_FUNCTION__;
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],
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AC_DEFINE(HAVE_PRETTY_FUNC,,
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[Define if the C complier supports __PRETTY_FUNCTION__]) ac_cv_c_pretty_func=yes,
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ac_cv_c_pretty_func=no) )
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])dnl
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