58 lines
1.4 KiB
Text
58 lines
1.4 KiB
Text
$NetBSD: patch-configure,v 1.5 2012/01/12 16:34:28 adam Exp $
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Check for libm so it is included if need be.
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--- configure.orig 2011-12-29 13:09:11.633992000 +0000
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+++ configure
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@@ -14689,6 +14689,51 @@ fi
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done
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+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for sqrt in -lm" >&5
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+$as_echo_n "checking for sqrt in -lm... " >&6; }
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+if ${ac_cv_lib_m_sqrt+:} false; then :
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+ $as_echo_n "(cached) " >&6
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+else
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+ ac_check_lib_save_LIBS=$LIBS
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+LIBS="-lm $LIBS"
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+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
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+/* end confdefs.h. */
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+
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+/* Override any GCC internal prototype to avoid an error.
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+ Use char because int might match the return type of a GCC
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+ builtin and then its argument prototype would still apply. */
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+#ifdef __cplusplus
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+extern "C"
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+#endif
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+char sqrt ();
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+int
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+main ()
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+{
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+return sqrt ();
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+ ;
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+ return 0;
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+}
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+_ACEOF
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+if ac_fn_c_try_link "$LINENO"; then :
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+ ac_cv_lib_m_sqrt=yes
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+else
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+ ac_cv_lib_m_sqrt=no
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+fi
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+rm -f core conftest.err conftest.$ac_objext \
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+ conftest$ac_exeext conftest.$ac_ext
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+LIBS=$ac_check_lib_save_LIBS
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+fi
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+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_m_sqrt" >&5
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+$as_echo "$ac_cv_lib_m_sqrt" >&6; }
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+if test "x$ac_cv_lib_m_sqrt" = xyes; then :
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+ cat >>confdefs.h <<_ACEOF
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+#define HAVE_LIBM 1
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+_ACEOF
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+
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+ LIBS="-lm $LIBS"
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+
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+fi
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+
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for an ANSI C-conforming const" >&5
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$as_echo_n "checking for an ANSI C-conforming const... " >&6; }
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