On Mon, 2004-04-05 at 17:52, Cyrille Chepelov wrote: > Le Mon, Apr 05, 2004, � 04:48:44PM +0200, Gansser, Martin a �crit: > > Hi, > > > > I tried to compile dia-0.92.2 on HPUX11.00 with gnome-2.4, but this > > fails with the following error message: > > > > checking math.h usability... yes > > checking math.h presence... yes > > checking for math.h... yes > > checking for isinf in -lm... no > > checking ieeefp.h usability... no > > checking ieeefp.h presence... no > > checking for ieeefp.h... no > > configure: error: Can't find neither a definition of > > isinf nor ieeefp.h > > make: *** [configure-work/main.d/dia-0.92.2/configure] Error 1 > > > Now, this is very strange. We first look for isinf() in math.h with -lm, and > only then we try ieeefp.h (Solaris). > > Why does the first test fail? > > Hmmm. Can you see if either line solves the problem: > CFLAGS="-g -O2 -Ae" ./configure > CFLAGS="-g -O2 -Aa -D_HPUX_SOURCE" ./configure > ? > Also, it would help to see the config.log file, say 40 lines around the word > "isinf"... > > D'oh! I see now. On HP-UX, isinf() is a macro. We find it in math.h, so the > first half of the first test "check that isinf exists and is in math.h AND > -lm" succeeds, but then we don't find it in -lm (configure uses a different > code snippet for the second test, which does NOT include math.h; instead, it > defines a bogus prototype and looks for a link failure, which is inevitable > on HP-UX). > > Lars, an idea? Shouldn't we be a little more lax with the -lm test? I think > we should test in two steps: > 1. isinf() in math.h (if no, go to step 3) > 2. isinf in -lm (if yes, add -lm to the command line, if no, don't > put -lm but let it run anyway). > > 3. isinf() in ieeefp.h (and whatever library Solaris uses to put > the definition of isinf(), if it doesn't use a macro)
I guess. That macro has been trouble for a while. http://redvip.homelinux.net/varios/rrdtool/rrdtool-1.0.33/configure.in has some similar problems and possibly better solutions. -Lars _______________________________________________ Dia-list mailing list [EMAIL PROTECTED] http://mail.gnome.org/mailman/listinfo/dia-list FAQ at http://www.lysator.liu.se/~alla/dia/faq.html Main page at http://www.lysator.liu.se/~alla/dia
