This file contains any messages produced by compilers while
running configure, to aid debugging if configure makes a mistake.

configure:558: checking for a BSD compatible install
configure:611: checking whether build environment is sane
configure:668: checking whether make sets ${MAKE}
configure:714: checking for working aclocal
configure:727: checking for working autoconf
configure:740: checking for working automake
configure:753: checking for working autoheader
configure:766: checking for working makeinfo
configure:783: checking for gcc
configure:896: checking whether the C compiler (gcc -O2 -march=i686 -mfpmath=sse -msse2 -pipe -pipe -frecord-gcc-switches -fno-diagnostics-color -fmessage-length=0 -Wl,-O1 -Wl,--as-needed -Wl,--defsym=__gentoo_check_ldflags__=0) works
configure:912: gcc -o conftest -O2 -march=i686 -mfpmath=sse -msse2 -pipe -pipe -frecord-gcc-switches -fno-diagnostics-color -fmessage-length=0  -Wl,-O1 -Wl,--as-needed -Wl,--defsym=__gentoo_check_ldflags__=0 conftest.c  1>&5
configure:909:1: error: return type defaults to 'int' [-Wimplicit-int]
  909 | main(){return(0);}
      | ^~~~
configure: failed program was:

#line 907 "configure"
#include "confdefs.h"

main(){return(0);}