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40 lines
1.3 KiB
40 lines
1.3 KiB
--- a/acinclude.m4
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+++ b/acinclude.m4
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@@ -1106,6 +1106,8 @@ changequote([, ])dnl
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dnl test function that tries to determine if a specified errno error exists
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m4_define([checkerrno],
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[AC_MSG_CHECKING(for errno symbol $3)
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+ saved_cppflags="$CPPFLAGS"
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+ CPPFLAGS="$CPPFLAGS -P"
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AC_PREPROC_IFELSE(
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[AC_LANG_PROGRAM([[#include <errno.h>]],
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[[
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@@ -1117,7 +1119,8 @@ errnoval: $3
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[AC_MSG_RESULT([OK])
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$1="$$1 $3"
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cat conftest.i | grep errnoval: >>$2],
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- [AC_MSG_RESULT([no])])])
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+ [AC_MSG_RESULT([no])])
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+ CPPFLAGS="$saved_cppflags"])
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AC_DEFUN([L_CHECKERRNO],
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[checkerrno($@)])
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@@ -1127,6 +1130,8 @@ dnl error exists
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dnl test function that tries to determine if a specified errno error exists
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m4_define([checkgaierror],
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[AC_MSG_CHECKING(for getaddrinfo() error $3)
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+ saved_cppflags="$CPPFLAGS"
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+ CPPFLAGS="$CPPFLAGS -P"
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AC_PREPROC_IFELSE(
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[AC_LANG_PROGRAM([[
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#include <sys/types.h>
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@@ -1142,7 +1147,8 @@ gaierrval: $3
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$1="$$1 $3"
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AC_DEFINE(HAVE_ERR_$3, 1, [$3 gai error found])
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cat conftest.i | grep gaierrval: >>$2],
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- [AC_MSG_RESULT([no])])])
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+ [AC_MSG_RESULT([no])])
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+ CPPFLAGS="$saved_cppflags"])
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AC_DEFUN([L_CHECKGAIERROR],
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[checkgaierror($@)])
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