Follow-up Comment #2, sr #110532 (project autoconf): MPFR is written in C, and it is generally compiled with a C compiler, so that we expect the compiler to be given by $CC. This means that we need AC_LANG(C), not AC_LANG(C++).
But we also allow C++ compilers (some compilers seem to support only C++, and testing with a C++ compiler also allows us to detect some issues with the header files). And since the compiler is given by $CC, g++ (for instance) is used via CC=g++. _______________________________________________________ Reply to this item at: <https://savannah.gnu.org/support/?110532> _______________________________________________ Message posté via Savannah https://savannah.gnu.org/