26 lines
608 B
Text
26 lines
608 B
Text
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dnl Check for a scanf that understands about %as as format specifier
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AC_DEFUN(tinc_SCANF_AS,
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[
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AC_CACHE_CHECK([for a scanf that groks %as], tinc_cv_scanf_as,
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[
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AC_TRY_RUN([
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/* Very naive program which will probably give a segmentation
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fault if the sscanf doesn't work as expected. */
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#include <stdio.h>
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int main() {
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char*s = NULL;
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sscanf("string\n", "%as\n", &s);
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if(s == NULL)
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return 1;
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return strcmp("string", s);
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}
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], [tinc_cv_scanf_as="yes"], [tinc_cv_scanf_as="no"])
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])
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if test "$tinc_cv_scanf_as" = "yes" ; then
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AC_DEFINE(HAVE_SCANF_AS)
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AC_SUBST(HAVE_SCANF_AS)
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fi
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])
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