39 lines
1.5 KiB
Diff
39 lines
1.5 KiB
Diff
--- a/configure.in
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+++ b/configure.in
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@@ -278,7 +278,7 @@ fi
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dnl
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AC_MSG_CHECKING(for void)
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AC_CACHE_VAL(uucp_cv_c_void,
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-[AC_TRY_COMPILE([], [extern void foo (); (void) exit (0);],
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+[AC_TRY_COMPILE([#include <stdlib.h>], [extern void foo (); (void) exit (0);],
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uucp_cv_c_void=yes, uucp_cv_c_void=no)])
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AC_MSG_RESULT($uucp_cv_c_void)
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if test $uucp_cv_c_void = yes; then
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@@ -318,7 +318,7 @@ dnl On some systems, memset, memcmp, and
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dnl the right number of arguments.
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AC_MSG_CHECKING(for memset)
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AC_CACHE_VAL(ac_cv_func_memset,
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-[AC_TRY_LINK([], [ char *i; int j, k; memset(i, j, k); ],
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+[AC_TRY_LINK([#include <string.h>], [ char *i; int j, k; memset(i, j, k); ],
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ac_cv_func_memset=yes, ac_cv_func_memset=no)])
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AC_MSG_RESULT($ac_cv_func_memset)
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if test $ac_cv_func_memset = yes; then
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@@ -327,7 +327,7 @@ fi
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dnl
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AC_MSG_CHECKING(for memcmp)
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AC_CACHE_VAL(ac_cv_func_memcmp,
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-[AC_TRY_LINK([], [ char *i, *j; int k; memcmp(i, j, k); ],
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+[AC_TRY_LINK([#include <string.h>], [ char *i, *j; int k; memcmp(i, j, k); ],
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ac_cv_func_memcmp=yes, ac_cv_func_memcmp=no)])
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AC_MSG_RESULT($ac_cv_func_memcmp)
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if test $ac_cv_func_memcmp = yes; then
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@@ -336,7 +336,7 @@ fi
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dnl
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AC_MSG_CHECKING(for memcpy)
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AC_CACHE_VAL(ac_cv_func_memcpy,
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-[AC_TRY_LINK([], [ char *i, *j; int k; memcpy(i, j, k); ],
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+[AC_TRY_LINK([#include <string.h>], [ char *i, *j; int k; memcpy(i, j, k); ],
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ac_cv_func_memcpy=yes, ac_cv_func_memcpy=no)])
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AC_MSG_RESULT($ac_cv_func_memcpy)
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if test $ac_cv_func_memcpy = yes; then
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