Import Trio 1.10 into fetchmail's trunk.

[~andy/fetchmail] / trio / configure.in

diff --git a/trio/configure.in b/trio/configure.in
new file mode 100644 (file)
index 0000000..6783959
--- /dev/null
+++ b/trio/configure.in
@@ -0,0 +1,45 @@
+dnl
+dnl Configuration for trio
+dnl
+
+AC_INIT(triodef.h)
+
+AC_PROG_CC
+ifdef([AC_PROG_CC_STDC], [AC_PROG_CC_STDC])
+AC_LANG_C
+
+AC_PROG_INSTALL
+AC_PROG_RANLIB
+
+dnl
+dnl Alpha floating-point compiler option.
+dnl
+
+AC_MSG_CHECKING(for IEEE compilation options)
+AC_CACHE_VAL(ac_cv_ieee_option, [
+AC_TRY_COMPILE(,[
+#if !(defined(__alpha) && (defined(__DECC) || defined(__DECCXX) || (defined(__osf__) && defined(__LANGUAGE_C__))) && (defined(VMS) || defined(__VMS)))
+# error "Option needed"
+#endif
+],ac_cv_ieee_option="/IEEE_MODE=UNDERFLOW_TO_ZERO/FLOAT=IEEE",
+AC_TRY_COMPILE(,[
+#if !(defined(__alpha) && (defined(__DECC) || defined(__DECCXX) || (defined(__osf__) && defined(__LANGUAGE_C__))) && !(defined(VMS) || defined(__VMS)) && !defined(_CFE))
+# error "Option needed"
+#endif
+],ac_cv_ieee_option="-ieee",
+AC_TRY_COMPILE(,[
+#if !(defined(__alpha) && (defined(__GNUC__) && (defined(__osf__) || defined(__linux__))))
+# error "Option needed"
+#endif
+],ac_cv_ieee_option="-mieee",
+ac_cv_ieee_option="none"
+)
+)
+)
+])
+AC_MSG_RESULT($ac_cv_ieee_option)
+if test $ac_cv_ieee_option != none; then
+  CFLAGS="${CFLAGS} ${ac_cv_ieee_option}"
+fi
+
+AC_OUTPUT(Makefile)