On Tue, Aug 12, 2008 at 8:14 PM, Anil Gulecha <[EMAIL PROTECTED]> wrote: > > Hi, > > make fails when i try to build libcppunit with the following: > > TestAssert.cpp: In function 'void CppUnit::assertDoubleEquals(double, > double, double, CppUnit::SourceLine, const std::string&)': > TestAssert.cpp:25: error: 'isfinite' was not declared in this scope > make[2]: *** [TestAssert.lo] Error 1 > make[2]: Leaving directory `/root/libcppunit-dev/cppunit-1.12.0/src/cppunit' > make[1]: *** [all-recursive] Error 1 > make[1]: Leaving directory `/root/libcppunit-dev/cppunit-1.12.0/src' > make: *** [all-recursive] Error 1
I presume you are using g++ since it is failing within c++ code. The gcc support page on this is unclear: See http://gcc.gnu.org/c99status.html (status for gcc 4.3) for gcc iso/math_c99.h has isfinite(), this comes in with the -std=c99 switch. >From the file /usr/include/c++/4.0.3/cmath (I checked in gcc 4.0.3) std::isfinite() comes from __gnu_cxx::isfinite(), this in turn is available if _GLIBCXX_USE_C99_MATH is defined. Below worked for a one line program using isfinite() g++ -D_GLIBCXX_USE_C99_MATH a.c But I am not sure if this switch is an exposed interface. You may want to check this. -Shiv
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