Bug #788: configure script confused by gcc-3.2

Richard Lightman (richard(at)nezumi(dot)plus(dot)com) reports a bug with a severity of 3
The lower the number the more severe it is.

Short Description
configure script confused by gcc-3.2

Long Description
The configure script tries to get gcc's version number into confdefs.h
gcc-3.0.* outputs one line of text, but 3.2 outputs several lines.
When confdef.h is included by configure's test programs, gcc-3.2
complains that multiline string litterals are not allowed.
Configure assumes that this is a valid result for some test, for
example it will assume openssl is not installed when it is.
The example code is a hack that demonstates I have problems using
autoconf, but despite that, "All 76 tests passed" with this patch.

Sample Code
diff -urN postgresql-7.1.3/configure postgresql-7.1.3-rcl/configure
--- postgresql-7.1.3/configure Thu Aug 16 19:36:31 2001
+++ postgresql-7.1.3-rcl/configure Sat Sep 28 16:30:44 2002
@@ -1617,7 +1617,7 @@

# Create compiler version string
if test x"$GCC" = x"yes" ; then
- cc_string="GCC `${CC} --version`"
+ cc_string="GCC `${CC} --version | head -1`"
else
cc_string=$CC
fi

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