Reported upstream at https://sourceforge.net/p/mcmc-jags/bugs/58/. ``` configure:21871: checking for working isfinite configure:21893: x86_64-pc-linux-gnu-gcc -o conftest -O2 -pipe -march=native -fdiagnostics-color=always -frecord-gcc-switches -Wreturn-type -ggdb3 -Werror=implicit-function-declaration -Werror=implicit-int -Wl,-O1 -Wl,--as-needed -Wl,--defsym=__gentoo_check_ldflags__=0 -Wl,-z,pack-relative-relocs conftest.c >&5 conftest.c: In function 'main': conftest.c:64:3: error: implicit declaration of function 'exit' [-Werror=implicit-function-declaration] 64 | exit(isfinite(1./0.) | isfinite(0./0.) | isfinite(-1./0.)); | ^~~~ conftest.c:62:1: note: include '<stdlib.h>' or provide a declaration of 'exit' 61 | #include "confdefs.h" +++ |+#include <stdlib.h> 62 | int main () { conftest.c:64:3: warning: incompatible implicit declaration of built-in function 'exit' [-Wbuiltin-declaration-mismatch] 64 | exit(isfinite(1./0.) | isfinite(0./0.) | isfinite(-1./0.)); | ^~~~ conftest.c:64:3: note: include '<stdlib.h>' or provide a declaration of 'exit' cc1: some warnings being treated as errors configure:21893: $? = 1 configure: program exited with status 1 configure: failed program was: ```
*** Bug 898268 has been marked as a duplicate of this bug. ***
