An alias for printing of all building variables set in the session (https://www.gnu.org/software/make/manual/html_node/Implicit-Variables.html)

alias_print_build_vars.sh

alias a_print_build_vars="printf \"
Standart GNU variables for additional building rules:
=====================================================

    ARFLAGS = $ARFLAGS
Flags to give the archive-maintaining program; default 'rv'.
    
    ASFLAGS = $ASFLAGS
Extra flags to give to the assembler (when explicitly invoked on a '.s' or '.S' file).
    
    CFLAGS = $CFLAGS
Extra flags to give to the C compiler.
    
    CXXFLAGS = $CXXFLAGS
Extra flags to give to the C++ compiler.
    
    COFLAGS = $COFLAGS
Extra flags to give to the RCS co program.
    
    CPPFLAGS = $CPPFLAGS
Extra flags to give to the C preprocessor and programs that use it (the C and Fortran compilers).
    
    FFLAGS = $FFLAGS
Extra flags to give to the Fortran compiler.
    
    GFLAGS = $GFLAGS
Extra flags to give to the SCCS get program.
    
    LDFLAGS = $LDFLAGS
Extra flags to give to compilers when they are supposed to invoke the linker, 'ld', such as -L. Libraries (-lfoo) should be added to the LDLIBS variable instead.
    
    LDLIBS = $LDLIBS
Library flags or names given to compilers when they are supposed to invoke the linker, 'ld'. LOADLIBES is a deprecated (but still supported) alternative to LDLIBS. Non-library linker flags, such as -L, should go in the LDFLAGS variable.
    
    LFLAGS = $LFLAGS
Extra flags to give to Lex.
    
    YFLAGS = $YFLAGS
Extra flags to give to Yacc.
    
    PFLAGS = $PFLAGS
Extra flags to give to the Pascal compiler.
    
    RFLAGS = $RFLAGS
Extra flags to give to the Fortran compiler for Ratfor programs.
    
    LINTFLAGS = $LINTFLAGS
Extra flags to give to lint.\""