"gcc -o conftest -I/nix/store/xmphgh0ga044aw1anfj3wr4yvsl6gk43-ruby-2.4.3/include/ruby-2.4.0/x86_64-linux -I/nix/store/xmphgh0ga044aw1anfj3wr4yvsl6gk43-ruby-2.4.3/include/ruby-2.4.0/ruby/backward -I/nix/store/xmphgh0ga044aw1anfj3wr4yvsl6gk43-ruby-2.4.3/include/ruby-2.4.0 -I.    -O3 -fno-fast-math -ggdb3 -Wall -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Wno-tautological-compare -Wno-parentheses-equality -Wno-constant-logical-operand -Wno-self-assign -Wunused-variable -Wimplicit-int -Wpointer-arith -Wwrite-strings -Wdeclaration-after-statement -Wimplicit-function-declaration -Wdeprecated-declarations -Wno-packed-bitfield-compat -Wsuggest-attribute=noreturn -Wsuggest-attribute=format -Wimplicit-fallthrough=0  -fPIC conftest.c  -L. -L/nix/store/xmphgh0ga044aw1anfj3wr4yvsl6gk43-ruby-2.4.3/lib -Wl,-rpath,/nix/store/xmphgh0ga044aw1anfj3wr4yvsl6gk43-ruby-2.4.3/lib -L. -fstack-protector -rdynamic -Wl,-export-dynamic     -Wl,-rpath,/nix/store/xmphgh0ga044aw1anfj3wr4yvsl6gk43-ruby-2.4.3/lib -L/nix/store/xmphgh0ga044aw1anfj3wr4yvsl6gk43-ruby-2.4.3/lib -lruby  -lpthread -ldl -lcrypt -lm   -lc"
gcc: error trying to exec 'as': execvp: No such file or directory
checked program was:
/* begin */
1: #include "ruby.h"
2:
3: int main(int argc, char **argv)
4: {
5:   return 0;
6: }
/* end */

package configuration for openssl is not found