=head1 Name SPVM::Document::EnvironmentVariables - Environment Variables =head1 Description This document explains environment variables. =head1 Environment Variables If an environment variable is an empty string, it is treated as an undefined value. =head2 SPVM_BUILD_DIR A directory for files generated by the compiler and linker. C source codes for precompilation, dynamic link libraries and object files are stored into this directory. These files are output when attempting to build a module containing methods with the C<native> attribute or the C<precompile> attribute. If these files are output and the directory given by C<SPVM_BUILD_DIR> environment variable does not exist, an exception is thrown. Examples: # bash export SPVM_BUILD_DIR=~/.spvm_build # csh setenv SPVM_BUILD_DIR ~/.spvm_build =head2 SPVM_CC_DEBUG If C<SPVM_CC_DEBUG> environement variable is a true value of Perl, debug messages and messages from L<SPVM native class|SPVM::Document::NativeClass> compiler and linker are printed to stderr. =head2 SPVM_CC_QUIET If C<SPVM_CC_QUIET> environement variable is a true value of Perl, messages L<SPVM native class|SPVM::Document::NativeClass> compiler and linker are not printed to stderr. If it is defined and a false value of Perl, the messages are printed. This setting has a higher priority than L<SPVM::Builder::Config#quiet|SPVM::Builder::Config/"quiet"> field. =head2 SPVM_CC_FORCE If C<SPVM_CC_FORCE> environement variable is a true value of Perl, the compilation and link by L<SPVM native class|SPVM::Document::NativeClass> compiler and linker are forced. This setting has a higher priority than L<SPVM::Builder::Config#force|SPVM::Builder::Config/"force"> field. =head1 See Also =over 2 =item * L<SPVM::Document> =back =head1 Copyright & License Copyright (c) 2023 Yuki Kimoto MIT License