Compile Error: full error message

$ ./configure
loading cache ./config.cache
checking host system type... i686-pc-cygwin
checking which template to use... win
checking whether to build with locale support... no
checking whether to build with recode support... no
checking whether to build with multibyte character
support... no
checking whether to build with Unicode conversion
support... no
checking for default port number... 5432
checking for default soft limit on number of
connections... 32
checking for gcc... gcc
checking whether the C compiler (gcc  ) works... yes
checking whether the C compiler (gcc  ) is a
cross-compiler... no
checking whether we are using GNU C... yes
checking whether gcc accepts -g... yes
using CFLAGS=-O2
checking whether the C compiler (gcc -O2 ) works... no
configure: error: installation or configuration
problem: C compiler cannot creat
e executables.

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