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[Discuss-gnuradio] Compile Error Under Cygwin: Undefined Symbol "INFINIT

From: Reid N Kleckner
Subject: [Discuss-gnuradio] Compile Error Under Cygwin: Undefined Symbol "INFINITY"
Date: Wed, 08 Aug 2007 14:17:26 -0400
User-agent: Internet Messaging Program (IMP) H3 (4.0.3)

Is anyone familiar with the following error?  I don't see it already on the

 g++ -DHAVE_CONFIG_H -I. -I../../../.. -DOMNITHREAD_POSIX=1 -I../../../../omnith
read -I../../../../gnuradio-core/src/lib/runtime -I../../../../gnuradio-core/src
/lib/general -I../../../../gnuradio-core/src/lib/general -I../../../../gnuradio-
core/src/lib/gengen -I../../../../gnuradio-core/src/lib/gengen -I../../../../gnu
radio-core/src/lib/filter -I../../../../gnuradio-core/src/lib/filter -I../../../
../gnuradio-core/src/lib/reed-solomon -I../../../../gnuradio-core/src/lib/io -I.
./../../../gnuradio-core/src/lib/g72x -I../../../../gnuradio-core/src/lib/swig -
I../../../../gnuradio-core/src/lib/swig -I/usr/local/include -I/usr/include/boos
t-1_33_1/ -I/usr/local/include -g -O2 -Wall -Woverloaded-virtual -MT gr_peak_det
ector_fb.lo -MD -MP -MF .deps/gr_peak_detector_fb.Tpo -c gr_peak_detector_fb.cc
 -DDLL_EXPORT -DPIC -o .libs/gr_peak_detector_fb.o
gr_peak_detector_fb.cc: In member function `virtual int gr_peak_detector_fb::wor
k(int, gr_vector_const_void_star&, gr_vector_void_star&)':
gr_peak_detector_fb.cc:64: error: `INFINITY' undeclared (first use this function
gr_peak_detector_fb.cc:64: error: (Each undeclared identifier is reported only o
nce for each function it appears in.)
make[6]: *** [gr_peak_detector_fb.lo] Error 1

I'm using current svn under Cygwin with GCC 3.4.4-3.  Obviously this is a
constant that somehow got undefined.  If I were to go in and give it a quick
fix via #define INFINITY (something), what would I use?


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