Compilation of CppUnit currently fails on both Solaris 10 (CC 5.8) & Suse
Linux 9.3 (g++ 3.3.5).
configure detects either isfinite() or finite(), but compilation fails when
attempting to use that function in CppUnit. Below are the relevant part of
configure/config-auto and compilation failure message. I don't know how
configure detects the presence of those function, but my guess is that it is
not done the same way as we compile CppUnit.
Linux man page state that isfinite() is only available in standard C99 mode
(which does not seem to be combinable with C++).
Solaris man page state that finite() requires include of <ieeefp.h>.
isfinite() is also present but I guess it is also only when compiling C (did
not manage to use it by changing the code).
Are the configure tests compiled in C or C++?
Here is the relevant data:
* Suse Linux 9.3 with g++ 3.3.5:
- configure:
checking for isfinite... yes
checking for finite... yes
- config-auto.h matches configure output:
/* Define to 1 if you have the `finite' function. */
#ifndef CPPUNIT_HAVE_FINITE
#define CPPUNIT_HAVE_FINITE 1
#endif
/* define if compiler has isfinite */
#ifndef CPPUNIT_HAVE_ISFINITE
#define CPPUNIT_HAVE_ISFINITE 1
#endif
- but compilation fails:
g++ -DHAVE_CONFIG_H -I. -I../../../src/cppunit -I../../config -I../../include
- I../../../include -g -O2 -MT
TestAssert.lo -MD -MP -MF .deps/TestAssert.Tpo -c .
./../../src/cppunit/TestAssert.cpp -fPIC -DPIC -o .libs/TestAssert.o
In file included from ../../../src/cppunit/TestAssert.cpp:2:
../../../include/cppunit/portability/FloatingPoint.h: In function `bool
CppUnit::floatingPointIsFinite(double)':
../../../include/cppunit/portability/FloatingPoint.h:38: error: `isfinite'
undeclared (first use this function)
../../../include/cppunit/portability/FloatingPoint.h:38: error: (Each
undeclared identifier is reported only once for each function it appears
in.)
* Solaris 10 (CC 5.8):
- configure:
checking for isfinite... no
checking for finite... yes
- config-auto.h matches configure output:
/* Define to 1 if you have the `finite' function. */
#ifndef CPPUNIT_HAVE_FINITE
#define CPPUNIT_HAVE_FINITE 1
#endif
/* define if compiler has isfinite */
/* #undef CPPUNIT_HAVE_ISFINITE */
- but compilation fails:
CC -DHAVE_CONFIG_H -I. -I. -I../../config -I../../include -I../../include -pta
-mt -xtarget=generic -g -features=no%transitions -xildoff -c
TestAssert.cpp -o TestAssert.o
"../../include/cppunit/portability/FloatingPoint.h", line 40: Error: The
function "finite" must have a prototype.
1 Error(s) detected.
Baptiste.
---
Baptiste Lepilleur <bl...@us...>
CppUnit maintainer
OpenTest and CppUnit 2 developer.
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